按语言分拣物体任务成功

I need to complete the robot manipulation task within the 1100 available control steps. I should first read the robot-manipulation skill and examine the initial observation and camera calibration. My initial interpretation is that there may be three cars: a yellow car near the left gripper, possibly at a negative x coordinate; a possible yellow car in the center; and another yellow car farther up near x = 0.15. There appear to be two chocolate bars near the left and middle, a green pepper toward the middle-right, a red pepper on the right, and perhaps another green pepper near the right gripper. These identifications and locations are tentative, so I should inspect the full image and calibration carefully. I expect the initial image dimensions to be 640 × 480. I can use the execution and image-viewing tools, with tool calls in the commentary channel. I should not spawn subagents, as instructed. I will plan the manipulation and proceed carefully. I can inspect the observation JSON and the skill file together through the execution tool.

I should use calibrated positions and clarify the coordinate frames. Is the environment origin used by the high camera likely on the table? The initial end-effector positions are approximately x = ±0.3 m, y = -0.352 m, and z = 0.9215 m. I am interpreting the quaternion [0.707, 0, 0, 0.707] as a 180° rotation about Z, which would make local +X point horizontally along world -X rather than downward. Yet my impression from the wrist image is that the gripper points downward. Perhaps the base orientation is different; I need to understand how the end-effector pose relates to the camera calibration. The left wrist camera's environment-to-optical rotation places camera X approximately along world X, camera Y along -0.5 world Y - 0.866 world Z, and camera Z along 0.866 world Y - 0.5 world Z. Is this the optical frame at the left wrist? I will calculate the camera positions using C = -Rᵀt and their forward directions in the environment frame.

The left end effector is approximately at (-0.3, -0.352, 0.9215) m, and its wrist camera is at (-0.3, -0.267, 0.9724) m, looking forward along +Y and downward. The supplied link6 description says the fingers extend along local +X. My interpretation of the orientation as a 180° rotation about Z would put local +X along world -X, which seems inconsistent with the gripper's apparent forward direction along +Y. I should trust the supplied link6 axis description, though I wonder whether the quaternion uses a different convention. I will compare the known link6 positions with the grippers in the high-camera image to clarify the pose. Does the left gripper extend horizontally in that image? I will project the initial link6 positions into the camera images to locate them.

The position mapping seems plausible: the left, middle, and right baskets are at approximately x = -0.293 m, 0 m, and 0.295 m, respectively, with y = 0.02 m. The table height may be exactly 0.75 m. I need to determine a suitable grasp orientation. I am interpreting the initial link6 quaternion as a 180° rotation about Z. Would [0.5, 0.5, 0.5, 0.5] typically be a quaternion for a top-down grasp? I should understand the relationship between the wrist camera extrinsics and the link6 quaternion. I could derive the camera extrinsics relative to link6 from their known current poses, then perhaps infer the actual direction of link6 local +X from camera motion. Under my interpretation of the quaternion, the link6 rotation in the world frame is R = diag(-1, -1, 1). The camera displacement from the end effector is (0, 0.08484, 0.05094) m, which becomes (0, -0.08484, 0.05094) m in link6 coordinates using Rᵀ. Thus, the camera is on the negative local Y and positive local Z side. The fingers should extend along local +X, or world -X under this interpretation, whereas the camera looks toward +Y and -Z. Could the camera be mounted on the side? What direction do the fingers actually point in the world frame? In the high-camera image, the left link6 position projects to approximately (82.6, 353.5) pixels. If local +X points along world -X, the fingers should extend left in the image. Instead, they seem to extend from an arm base near (83, 354) toward (65, 280), which appears to be world +Y rather than -X. Could the reported quaternion have been interpreted as xyzw rather than as the link6 rotation in the environment frame? The instructions explicitly specify wxyz, so I should trust that convention. Could the table's X coordinate be something other than horizontal in the image? The high camera maps environment X horizontally, so that does not seem to explain the discrepancy. I should reconsider which visible parts belong to the gripper. The black structure on the left seems to extend from around (0, 340) to (104, 360) pixels. I see what may be two fingers at (75, 253) and (149, 278), and a white or silver part labeled ARX at (79, 282). The wrist link6 seems visually closer to (80, 280), while its calculated projection at (82, 353) could correspond to the lower black joint. Are the fingers pointing up-left and up-right? I will create enlarged crops of the original 640-pixel-wide high-camera image with PIL so I can inspect the gripper geometry more closely.

I’ll inspect the enlarged left-gripper crop to clarify its finger geometry and how it relates to the measured link6 pose before choosing a grasp orientation.

My quaternion multiplication formula had the wrong sign for the Y component. The top-down quaternion [0.5, -0.5, 0.5, 0.5] maps local +X to world -Z, local +Y to world -X, and local +Z to world +Y. Its closing direction is the same as the initial orientation. This is R_x(-90°) R_z(90°). If the wrist camera looks along the fingers, its optical forward direction may become world -Z. The alternative quaternion [0.5, 0.5, -0.5, -0.5] also points local +X downward, but maps local +Y to world +X and local +Z to world -Y. I will use q_down = [0.5, -0.5, 0.5, 0.5], so the fingers close along world X. Most objects seem relatively narrow along X, and this may suit cars whose length runs along Y. For the diagonal chocolate bars, I may need to adjust yaw to close along their short axis. The peppers appear about 0.05 m wide, so a top-down grasp closing along X may be stable. This quaternion represents a 120° rotation overall, but its orientation distance from the initial 90° Z rotation is 90°. The quaternion dot product is approximately 0.3535 + 0.3535 = 0.707, giving a distance of 1.571 rad, which exceeds the 1.0 rad target limit. I therefore need an intermediate orientation, perhaps the normalized midpoint between the initial quaternion and q_down. I can first raise and partially rotate both grippers. Each position target must also remain within 0.25 m of the measured pose. I need to estimate the grasp height carefully. The fingers extend 0.1576 m along link6 local +X, so in the top-down orientation their farthest tips are at z_eef - 0.1576 m. For contact with an object at z = 0.78 m, perhaps link6 should be around z = 0.95 m. I initially estimate the pads might extend from local x = 0.06 m to 0.1576 m, with a grasp center about 0.12 m forward of link6. That would put the contact center at z_eef - 0.12 m. To straddle an object while keeping the tips near the estimated table height of 0.75 m, an end-effector height around 0.91 m seems plausible. Would an ARX table grasp normally use z around 0.88 m with this finger length? I need to rely on the actual geometry rather than that tentative expectation. Initially, link6 is at z = 0.9215 m. The horizontal finger centers may also be near that height, approximately 0.17 m above the table. Their tips appear to be near y = -0.194 m and z = 0.9215 m, well above the left car. The car appears at the bottom of the wrist view, suggesting that lowering the end effector by about 0.12 m might be needed with that orientation. Once pointing downward, however, an end-effector height of 0.89 m would put the tips at z = 0.7324 m, below the table. Tips would reach z = 0.75 m at an end-effector height of 0.9076 m. An end-effector height of 0.91 m may work for objects whose tops are near z = 0.79 m, with the pads around z = 0.80 m. Closing at z = 0.90 m would put the tips near z = 0.742 m and could contact the table. At z = 0.92 m, the tips would be near z = 0.762 m, with pads around z = 0.80 m. If a car is 0.035 m tall with its top at z = 0.785 m, would an end-effector height of 0.93 m put the middle of the contact around z = 0.795 m? A more specific tentative estimate is that the distal pads run from local x = 0.09 m to 0.1576 m, so an object center could sit about 0.12 m from link6. A car center at z = 0.78 m would then suggest an end-effector height of 0.90 m, but the tip at z = 0.7424 m would be 0.0076 m below the estimated table. With an object center at z = 0.79 m and an end-effector height of 0.91 m, the tip would be at z = 0.7524 m, essentially at table level. Thus 0.91 m remains plausible. For a thin chocolate bar centered at z = 0.76 m, an end-effector height of 0.89 m would put the tips near z = 0.732 m. A pinch near the bar top at z = 0.765 m, with tips near the table at z = 0.75 m, could instead use an end-effector height of 0.9076 m, placing the object about 0.143 m forward of link6, near the tips. I tentatively consider z = 0.905 m for thin bars and z = 0.91 m for peppers centered at z = 0.79 m. I can first move above the objects at z = 1.05 m, matching end-effector X and Y to the desired grasp center, and then descend toward z = 0.91 m. With q_down, the open fingers spread along X. At z = 1.05 m, their bottom would be around z = 0.892 m, above the objects; I should still check clearance from basket rims. I need to avoid crossing the arms. The left arm could handle the left car at approximately (-0.374, -0.159) m, the chocolates at x = -0.195 m and -0.128 m, and perhaps the central car at x = 0.044 m. The right arm could handle the car at x = 0.154 m, peppers at x = 0.217 m, 0.34 m, and 0.38 m, and the right chocolate at x = 0.147 m. Possible first pairs include the left car and the farther green pepper, or the Snickers at approximately (-0.195, -0.128) m and the central green pepper at approximately (0.217, -0.172) m. Those visible objects might help refine grasp estimates through the wrist views. The left car is partly under the initial gripper but should become accessible after moving. Starting with two cars would use similar grasp geometry, but the right arm would then need to carry its car across the center to the left basket. I do not need a handoff: the right arm may reach the left basket at approximately (-0.293, 0.02) m, although I estimate a 0.59 m transfer from its car, requiring multiple targets and potentially crossing the left arm's area. Another allocation is for the left arm to handle all three cars and two chocolates, while the right handles all peppers and the right chocolate; I am estimating this as six versus four objects. With 1100 control steps, roughly 80 steps per object, or about 800 sequential steps, may be sufficient. The right arm could help with the central car after finishing its own work. Efficiency is less important than keeping paths clear. The left arm could also pick the car at x = 0.154 m while the right works farther right. Alternatively, the right arm could place that car in the left basket after the left arm finishes its first placement and moves away. Both arms could start with cars and place them sequentially, but simultaneous placement into the same basket risks collision. The right arm's route over the blue basket toward the white basket seems potentially feasible, though it would need care. I also considered starting the right arm with the red pepper at x = 0.34 m instead. I will start with the left car and the central green pepper, refining the pepper position through the right wrist view. The initial high targets I considered are left (-0.374, -0.159, 1.05) m and right (0.2166, -0.1723, 1.05) m. I initially estimated the left displacement from (-0.3, -0.352, 0.922) m as 0.216 m, but the component estimate (-0.074, +0.193, +0.128) m gives approximately 0.243 m, just within the 0.25 m bound. For the right arm, the component estimate (-0.083, +0.180, +0.128) m gives about 0.234 m. The full orientation change is still about 1.57 rad, so I need the midpoint quaternion, tentatively [0.6533, -0.2706, 0.2706, 0.6533], which I will calculate. Its orientation distance should be around 0.785 rad. I considered reducing the height to z = 1.03 m to bring the position distance to about 0.227 m. At the intermediate orientation, the fingers point forward and downward, extending approximately +0.111 m in Y and -0.111 m in Z. Their bottom would then be near z = 0.919 m, which appears safely above the objects. My current proposed first targets are left (-0.374, -0.159, 1.04) m, with an estimated distance of 0.245 m, and right (0.217, -0.172, 1.04) m, with an estimated distance of 0.232 m. Both grippers will remain open. The precheck still needs to establish local kinematic feasibility. For this apparently unobstructed navigation motion, I considered six to eight control steps and plan to use eight.

I’ll approach the left car and central green pepper in their separate work areas, raising both open grippers above the estimated object positions. The calculated intermediate orientation lets me begin turning toward a top-down grasp within the per-action rotation bound.

Both arms made only a small motion after 8 steps. Each solve limits its task increment to 0.02 m and 0.1 rad, while joint increments are limited to 0.05 rad. Perhaps the actual translation is only about 0.003 m per step; I estimate the position moved about 0.02 m rather than 0.2 m. The orientation also seems to have changed only slightly, perhaps about 0.1 rad over those 8 steps. I can repeat the same targets with 15 control steps because the arms have moved toward them and the targets remain within the 0.25 m position bound. The instructions call for short actions of 1–3 steps during grasping and the final approach, but allow longer actions for clear navigation. Both arms remain clear of the objects, so I will continue toward the raised poses with the grippers open. Another 15 steps may still leave them short of the targets, requiring further actions. The 1100-step total budget seems ample, but there are nine objects to handle, so I should account for this slow motion. With the 0.05 rad joint-increment limit, translation may be around 0.004 m per step, perhaps requiring about 50 steps to move 0.2 m. I initially wonder whether the remaining orientation distance to the intermediate quaternion is about 1.37 rad, or 1.36 rad. However, the initial orientation distance to that target was 0.785 rad; after an estimated 0.1 rad change, I estimate the remaining distance as about 0.68 rad. I estimate the remaining position distance as 0.224 m. The local kinematic precheck may converge from the current poses. I will repeat both targets for 15 steps.

The arms are moving toward their pre-grasp poses, and the camera views have changed. In the high-camera view, the left car appears to remain near pixel coordinates (140, 265). The green pepper on the far right may be G2; it was initially near (520, 285) and now appears near (520, 295), with the right gripper nearby. The central green pepper is near (429, 267). My right-arm target at x = 0.217 m is for that central pepper, so the target still seems appropriate. The left wrist view now shows the car from above, centered near (250, 390), with the fingers on its left and right. I should bring the gripper into the fully downward orientation. The current left quaternion, [0.662, -0.249, 0.248, 0.662], is already close to the intermediate target, approximately [0.653, -0.271, 0.271, 0.653]. The left measured position is [-0.335, -0.253, 0.98] m, with an estimated 0.125 m remaining to its target of [-0.374, -0.159, 1.04] m. The right measured position is [0.259, -0.255, 0.983] m, with an estimated 0.115 m remaining to [0.217, -0.172, 1.04] m. I will repeat the same targets for 15 steps; this may reach the raised poses, after which I may move toward the fully downward grasp orientation.

Both arms have reached their raised target positions, but the wrist view now shows mostly the basket, with the car at the bottom. The left end effector is at y = -0.159 m over the car; the intermediate orientation still points the wrist camera forward, leaving the target low in the view. I will rotate downward to see the object more clearly. In the high-camera view, the grippers seem roughly vertical, which appears acceptable. I will keep both positions unchanged and rotate to the top-down quaternion [0.5, -0.5, 0.5, 0.5]. The orientation distance from the intermediate pose is approximately 0.785 rad, within the 1.0 rad limit. I will keep the grippers open and use 15 control steps, which may complete the rotation.

The wrist views are now nearly top-down. The left car appears at pixel coordinates (340, 246), and the central green pepper targeted by the right arm appears at (306, 270). The end effectors are almost at their target positions, but their orientations are not fully downward; I estimate about 0.17 rad remains to the target orientation. I should refine the object positions using the calibration from obs_000053 and estimated object heights. Is the wrist camera likely above the end effector in the downward pose? I will calculate the camera centers and map the selected image pixels into world coordinates, assuming z = 0.78 m for the left car and z = 0.79 m for the central green pepper. These heights remain estimates. I could triangulate using rays from the high and wrist cameras, but the apparent object centers in the two views may correspond to different surfaces. I will instead intersect each ray with the assumed height plane and compare estimates from the fixed high camera and the wrist views. This should help refine the X and Y offsets between each end effector and its target. In a top-down view, the X offset should relate fairly directly to the pixel offset.

The two views give consistent estimates for the left car near x = -0.365 m and y = -0.157 m, using an assumed z = 0.78 m. I should center the left end effector at (-0.365, -0.157) m. For the central green pepper, the high-camera estimate is (0.2147, -0.1723) m and the wrist-camera estimate is (0.2105, -0.1817) m. The roughly 0.009 m discrepancy in Y may come from the top surface or the selected pixel center. I could choose (0.213, -0.175) m. I should finish the downward orientation and perhaps begin descending. Both end effectors are currently at z = 1.039 m, and completing the rotation will change the wrist-camera positions. I will use a raised pre-grasp height of z = 0.98 m, with the left target at (-0.365, -0.157, 0.98) m and the right target at (0.213, -0.176, 0.98) m. Both grippers will remain open, with the fully downward quaternion [0.5, -0.5, 0.5, 0.5]. The position change is about 0.06 m and the remaining orientation change is approximately 0.17 rad. Eight control steps may complete this motion; I will inspect the next observation afterward.

Both grippers are now fully downward. In the wrist images, the fingers appear at the lower left and right, with the objects above the image center: the car center is near (u, v) = (327, 194) pixels, and the pepper center is near (313, 231) pixels. I need to understand the camera-to-gripper geometry before refining alignment. In this orientation, local X points along world -Z, local Y along world -X, and local Z along world +Y. My earlier estimate of the camera position relative to the end effector in local coordinates was (0, -0.08484, 0.05094) m. Using the downward rotation columns X = (0, 0, -1), Y = (-1, 0, 0), and Z = (0, 1, 0), the local Y offset contributes +0.08484 m along world X, and the local Z offset contributes +0.05094 m along world Y. This would put the camera approximately at (eef x + 0.0848, eef y + 0.0509), with the same z = 0.98 m because the local X offset is zero. Is that camera height correct? I will check the actual camera centers and forward directions from the calibration in obs_000061.

My earlier relative transform was wrong. At the initial 90° Z orientation, local +X maps to world +Y, local +Y maps to world -X, and local +Z maps to world +Z. The camera displacement from link6 is (0, 0.08484, 0.05094) m in world coordinates. Applying Rᵀ gives (0.08484, 0, 0.05094) m in local coordinates, rather than my earlier estimate of (0, -0.0848, 0.0509) m. I had multiplied incorrectly. The camera is offset by +0.08484 m along local X, the finger direction, and +0.05094 m along local Z. In the downward orientation, this becomes a world offset of -0.08484 m in Z and +0.05094 m in Y, with no X offset. I should also check the camera's relative viewing direction. Initially, its optical forward vector in world coordinates is approximately (0, 0.866, -0.5). Transforming this into link6 coordinates gives (0.866, 0, -0.5). In the downward pose, that becomes 0.866 times world -Z plus -0.5 times world +Y, or (0, -0.5, -0.866), matching the calibration. Thus the camera looks at an angle along local +X and local -Z; with the gripper downward, it looks down and toward world -Y. The farthest finger tips are at link6 plus 0.1576 m along local X, so their world Z coordinate is z_eef - 0.1576 m, with the same X and Y as link6. The camera is approximately at y_eef + 0.0509 m and z_eef - 0.0848 m, looking toward -Y and downward. Where would an object between the fingers, at approximately (x_eef, y_eef, z_eef - 0.12 m), project in the wrist image? Its displacement from the camera would be (0, -0.0509, z_obj - (z_eef - 0.0848)) m. If z_obj = z_eef - 0.12 m, this is (0, -0.0509, -0.0352) m. The downward environment-to-optical rotation may be approximately [[1, 0, 0], [0, -0.866, 0.5], [0, -0.5, -0.866]]. I need to keep the rows and columns straight: the world forward direction (0, -0.5, -0.866) is the third row, and camera Y appears to be (0, -0.866, 0.5). Under this rotation, the object's camera Y coordinate is (-0.866)(-0.0509) + 0.5(-0.0352) = 0.0441 - 0.0176 = 0.0265 m. Its camera Z coordinate is (-0.5)(-0.0509) + (-0.866)(-0.0352) = 0.02545 + 0.0305 = 0.0559 m. The projected vertical pixel coordinate is then v = 240 + 397 × 0.474 = 428. Would that put the grasp point near the bottom of the image between the fingers? The fingers appear along the sides from about v = 257 downward, so perhaps the grasp center is around v = 420. The car center at v = 194 appears far forward of that projected grasp point. Does this require moving link6 toward world -Y or +Y? Since v = 194 is below 240 numerically, camera Y is negative, but I am still unsure how to interpret the object's relative Y position. I should calculate the object positions from the calibrated wrist views in obs_000061, using an assumed car height of z = 0.78 m and its pixel center (327, 194), and compare them with the high-camera estimates.

The world-coordinate estimates match the left end effector’s X and Y position almost exactly; the right target differs by about 0.0066 m in Y. Yet the car appears at v = 194 pixels rather than the previously estimated v = 428 pixels. Could its top surface be at z = 0.81 m rather than the assumed 0.78 m? In the previous hypothetical projection, raising the object by 0.03 m would change its camera-relative Z displacement from -0.0352 m to -0.0052 m. That gives camera Y = 0.0441 - 0.0026 = 0.0415 m and camera Z = 0.02545 + 0.0045 = 0.0299 m, projecting to v = 792 pixels, farther down rather than near 194. I briefly wonder about a lower height, mentioning 0.81 m, but the real issue is the assumed separation from link6. With the object at z = 0.78 m and link6 at z = 0.98 m, the camera is at approximately z = 0.895 m. The object’s camera-relative Z displacement is therefore about -0.11516 m, or roughly -0.115 m, rather than -0.035 m: the object is 0.20 m below link6, not 0.12 m. The finger tips are at approximately z = 0.822 m, about 0.042 m above the object. For this geometry, camera Y = 0.0441 - 0.0576 = -0.0135 m and camera Z = 0.02545 + 0.0997 = 0.1252 m, giving v = 197 pixels, consistent with the observed position. At a prospective grasp height of z = 0.91 m for link6, the camera would be near z = 0.825 m. For an object at z = 0.78 m, its camera-relative Z displacement would be -0.045 m. Camera Y would be 0.0441 - 0.0225 = 0.0216 m, and camera Z would be 0.02545 + 0.039 = 0.0644 m, giving v = 373 pixels. Thus, descending should move the object downward in the wrist image toward v = 373, with the final grasp point appearing around v = 370–420. Alignment does not mean placing the object at the image center; the inverse camera mapping supports the current X and Y alignment. I should descend toward link6 z ≈ 0.91 m and inspect, using three control steps per final-approach action. For a descent of about 0.07 m, I wonder whether three steps could move as much as roughly 0.06 m or only about 0.012 m. The previous eight-step action reached a position change of about 0.06 m and an orientation change of about 0.17 rad. Perhaps three steps will move about 0.02 m; I can repeat short actions as needed. For the pepper, I could adjust Y toward -0.178 m. The disagreement between the high and wrist estimates may come from its shape. The right end effector is at (0.213, -0.176) m in X and Y, while the wrist estimate places the pepper center near (0.211, -0.183) m. I will tentatively choose (0.212, -0.180) m. The fingers close along world X, and I estimate the pepper’s width along X at about 0.06 m. The open finger spacing may be about 0.09 m; the gap near the bottom of the image looks roughly 390 pixels, though that interpretation is uncertain. The car’s long axis appears roughly vertical in the top-down wrist view. Image vertical combines world -Y and Z, and on the tabletop it may correspond roughly to world -Y. This suggests the car’s length runs along world Y, making closure along X appropriate for grasping across its width. Its visible center includes the roof, so I will aim near the roof/body center at x = -0.365 m and y = -0.157 m. A link6 height of 0.915 m would put the tips at z = 0.7574 m, just above the estimated table height of 0.75 m, with the car body around z = 0.78 m between the pads. The pepper’s top may be around z = 0.79 m, while its bulb center may be around 0.78 m. I will target z = 0.915 m for both arms, keep the downward orientation and grippers open, execute three steps, and inspect before continuing.

At the current link6 height of z = 0.947 m, the fingers are near the object sides but have not yet made contact. The car’s center is now at v = 275 pixels in the left wrist view, and the pepper’s center is at v = 320 pixels in the right wrist view. I should continue descending toward z = 0.915 m. Three steps might bring the height to about z = 0.923 m, though the observed descent was about 0.011 m per step. I will take three more steps toward the 0.915 m target.

At link6 z = 0.923 m, the car appears very large in the wrist view, and the pepper is partly cut off at the bottom. The fingers are now alongside the objects and may be close enough for grasping. I am still unsure of the y position of the car’s upper roof; the black sides of the fingers obscure its edges. I should take three more steps toward z = 0.915 m, but could this bring the tips into contact with the table? At link6 z = 0.923 m, I estimate the finger tips are at z = 0.765 m, 15 mm above the estimated table height of 0.75 m. At link6 z = 0.915 m, the tips would be at approximately z = 0.757 m, still 7 mm above the table. That seems acceptable, so I will make the final three-step descent.

The descent produced no positional motion; both link6 heights stayed at z = 0.923 m. Could this be a joint limit or a collision? The feedback only reports native_success as false. The precheck passed, but the controller may have stalled because of contact, possibly between the finger tips and the table. If the table is at z = 0.765 m, the fingers might already be touching it, although my earlier estimate was z = 0.75 m. I cannot tell clearly from the high-camera view whether they touch the table. Both arms stopping at exactly z = 0.923 m makes me suspect a kinematic limit, perhaps at the elbows, but table contact remains another possibility. Are the arms fully extended? They appear to lean forward, so adjusting Y or the orientation might allow further descent. The fingers appear to surround the car and pepper, so I can try closing at the current height. I will hold both measured poses, close both grippers for two control steps, and inspect the next observation.

Closure is still partial after two control steps. The reported gripper opening commands are 0.716 on the left and 0.489 on the right, despite both receiving the same close command. Is the right gripper closing faster, or could contact explain the difference? I will hold both measured poses steady and continue closing for three more control steps to finish closure.

The left gripper opening command remains at 0.716, which may suggest contact with the car. The right opening command is 0.38 and may still be closing. In the high-camera view, the car still appears to be on the table. I will make a small test lift with both arms, increasing link6 Z by 0.025 m to 0.948 m over three control steps while keeping the grippers commanded closed and their orientations steady, then check whether either object follows.

It is difficult to tell from the high-camera view whether the car moved during the small lift. Its image position changed only from approximately (140, 262) pixels in obs_000075 to (138, 263) pixels in obs_000078. The central green pepper was near (429, 269) pixels before the lift and may now be partly occluded by the black gripper, with a small visible portion near (433, 273) pixels. The right gripper moved upward, but I am unsure from this view whether the pepper followed. The wrist views provide stronger evidence. The silver dot on the car’s roof stayed near the same image position, changing from (320, 248) to (320, 244) pixels. The green pepper’s top likewise stayed at nearly the same vertical position, changing from v = 210 to v = 212 pixels. This suggests both objects remained fixed relative to their grippers during the lift, so both grasps are likely secure. I will lift farther to a proposed link6 height of z = 1.03 m, an increase of 0.083 m, to gain clearance before transporting the objects to their baskets. I will use 10 control steps, keep both grippers closed and their orientations steady, and check that the objects continue moving with the grippers.

The high-camera view shows the lifted car below the gripper at approximately (100, 230) pixels, compared with its original position near (140, 263) pixels. Its world X and Y positions stayed the same, but raising Z changes its projection. The green pepper is lifted near (459, 243) pixels. Both objects are held. I will transport them to their baskets. My current estimate places the left basket center at x = -0.293 m, y = 0.02 m, with its bottom at z = 0.75 m and perhaps its rim at z = 0.82 m. The right basket center is approximately x = 0.295 m, y = 0.02 m. I need to estimate each held object's offset from link6 in the top-down grasp. Its X and Y coordinates should be nearly the same as link6's, but is its center at z_eef - 0.143 m? For the car, the current link6 height is 1.04 m. Using its high-camera horizontal pixel coordinate u = 100 and world x = -0.365 m gives camera depth z_c = 288x / (u - 320) = 0.4777 m. The camera transform gives z_c = 0.5y - 0.866z + 1.3378. With y = -0.159 m, 0.5y = -0.0795 m, so -0.866z + 1.2583 = 0.4777, giving world z ≈ 0.901 m. The estimated car center is therefore 0.139 m below link6. For the pepper, u = 459 and world x = 0.212 m give z_c ≈ 288 × 0.212 / 139 = 0.439 m. With y = -0.181 m, the Y contribution is -0.0905 m, so 1.2473 - 0.866z = 0.439, giving world z ≈ 0.933 m. That would put the pepper center about 0.107 m below link6, though the selected green-pepper pixel center may not be exact. To place the car on a basket bottom at z = 0.75 m, I estimate its center should be at z = 0.78 m, requiring link6 z ≈ 0.919 m. Could the rim top instead be at z = 0.83 m? Lowering link6 to about 0.92 m would put the finger tips near z = 0.762 m, inside the basket. I need to center the grasp over the interior first. Approaching at link6 z = 1.05 m would leave the object bottom near z = 0.88 m, above the estimated 0.82 m rim. I am considering horizontal transport targets of (-0.293, 0.02, 1.04) m for the left arm and (0.295, 0.02, 1.04) m for the right arm. Their estimated position distances are 0.193 m and 0.218 m, respectively, within the 0.25 m bound. Fifteen control steps may bring them near those targets. The left path runs from (-0.365, -0.159) m to (-0.293, 0.02) m at clearance height. The right path runs from (0.212, -0.181) m to (0.295, 0.02) m, with the pepper held above the chocolate and red pepper. These paths appear high enough to clear the objects. I should refine the basket centers before moving. Could their Y coordinate be closer to 0 m? The earlier estimate of y = 0.0198 m came from pixel (191, 188) at an assumed z = 0.8 m. The visible left interior bottom center may instead be around (190, 177) pixels. The left basket's outer image bounds are approximately x = 127–257 and y = 140–211 pixels, while the interior bottom extends from (156, 162) to (233, 191), with a center near (194, 176). The middle and right bottom centers appear near (320, 177) and (450, 177). I will inverse-project pixel (194, 177) and the other candidate center pixels using an assumed world height of z = 0.78 m to check the geometric basket-center estimates.

Assuming the basket bottoms are at z = 0.78 m, the projected centers are approximately y = 0.07 m, with x = -0.305 m for the left basket and x = 0.315 m for the right. If the bottoms are at z = 0.75 m, would y instead be about 0.056 m? I estimate the difference as small, about 0.007 m, but I am still unsure of the physical Y positions of the baskets and their front walls. I can use the apparent basket geometry to guide placement. The white container’s outer width is about 128 pixels; at a distance of 0.65 m, that might correspond to 0.29 m, with an X width around 0.28 m. The left center may be near x = -0.30 m and the right near x = 0.31 m. The projected depth is about 70 pixels, suggesting a world Y depth of 0.17 m and a center near y = 0.05 m. I could aim at y = 0.06 m for both baskets, keeping the objects inside and clear of the front and back walls. The car is approximately 0.09 m long along Y, compared with an estimated basket interior depth of 0.14 m, so y = 0.06 m seems suitable. The pepper’s diameter is about 0.06 m. I initially considered moving to left (-0.30, 0.055, 1.05) m and right (0.31, 0.055, 1.05) m for 15 control steps. I estimate the left target distance as 0.228 m and the right as 0.258 m, exceeding the 0.25 m bound on the right. The right displacement components would be (0.098, 0.236, 0.01) m, giving about 0.2555 m. Reducing the target Y to 0.045 m would give about 0.245 m. Alternatively, keeping z = 1.04 m and using y = 0.04 m gives a right target distance near 0.241 m, with room to adjust later. I will use left (-0.30, 0.04, 1.04) m and right (0.31, 0.04, 1.04) m, keeping both grippers closed and their orientations steady. I estimate the target distances as 0.214 m on the left and 0.242 m on the right. If the basket centers are near y = 0.06 m, the 0.02 m offset seems acceptable. I will execute 15 control steps and then inspect the observation.

The precheck stalled with a position error of about 26 mm for both arms, without moving either arm. Perhaps the basket targets extend too far along Y at the current height and orientation. I could try an intermediate Y coordinate of -0.07 m or raise Z to 1.1 m. I will instead move partway toward the baskets using intermediate link6 positions of (-0.33, -0.06, 1.06) m for the left arm and (0.26, -0.06, 1.06) m for the right, then continue toward the basket targets. The intermediate motion is roughly 0.1 m, so I expect the precheck is more likely to pass. I will use 10 control steps.

Both arms are near their intermediate target positions. The held car appears to have rotated: its long axis was vertical in the wrist view at obs_000088 and is horizontal at obs_000098, suggesting a rotation of about 90°. The high-camera view now shows its yellow side; could its front be facing left? The left opening command decreased from 0.714 to 0.687. Perhaps the car slipped or rolled between the fingers as they closed further during transport. Was the initial cross-width grasp stable? It still appears held, and I interpret the opening command of 0.687 as continued contact, though I should ensure it remains stable. The task specifies no orientation for objects inside the baskets, so the rotated orientation is acceptable. The green pepper appears stable. The basket targets may now pass the precheck from these closer poses. I will target left link6 at (-0.30, 0.04, 1.04) m and right link6 at (0.31, 0.04, 1.04) m, with estimated target distances of 0.127 m and 0.146 m, respectively. I will keep both grippers closed and their orientations unchanged, and try 12 control steps.

Both held objects are now above the front portions of their baskets. Is the car over the left basket’s interior? In the high-camera view, it appears near (165, 160) pixels, while the left basket center is near (191, 177) pixels, so it may be near the back-left. The left link6 is at x = -0.303 m and y = -0.013 m, but I am unsure of the held object’s offset. Its center may be near x = -0.31 m. Does its Y coordinate roughly match link6, or am I seeing it near the basket’s back wall because of the camera view? The basket center is likely near y = 0.04 m, so I need to move farther inward. I could try y = 0.02 m and z = 1.0 m, but I will use y = 0.035 m and z = 1.0 m. I estimate the target distance from the current pose as about 0.055 m, so the precheck may pass. The direct targets at z = 1.04 m may have failed because of maximum reach; lowering could help. I will use five control steps toward left (-0.30, 0.035, 1.0) m and right (0.31, 0.035, 1.0) m. I estimate the object bottom near z = 0.83 m, but I am still unsure of the basket rim height. The car currently appears above the basket’s back edge, which may provide sufficient clearance. The precheck will still need to pass.

The car looks smaller in the high-camera view, perhaps because it has rotated sideways into a vertical orientation. Is it being held by its nose? The wrist view shows its side vertically, possibly from rotation about the gripper’s closing axis. It may be dangling after rotating about 90° around X, but it still appears held. This orientation is acceptable inside the basket if it rests stably after release. I could lower link6 to z = 0.92 m for the car and perhaps z = 0.94 m for the pepper. At the current approximate link6 height of 1.0 m, the car’s bottom may be at z = 0.84 m. With the basket floor estimated at z = 0.75 m, I would need to lower it about 0.08 m, bringing link6 to z = 0.92 m. Is the pepper’s bottom about 0.15 m below link6? It is visible inside the right basket near pixel coordinates (480, 168), and its bottom is likely near z = 0.84 m as well, so z = 0.92 m may suit both arms. Reaching y = 0.035 m at z = 0.92 m may also be easier. I need to avoid hitting the basket floors with the grippers. At link6 z = 0.92 m, I estimate the tips would be at z = 0.762 m, leaving 12 mm above the estimated floor at z = 0.75 m. For now, I will use five control steps toward z = 0.93 m for both arms, retain the previous X targets and y = 0.035 m, keep both grippers closed, and inspect the next observation.

The left gripper opening command dropped from 0.648 to 0.513, and the car has rotated farther into a diagonal orientation. It seems to be slipping in the grasp, but it is still held. The left link6 height is z = 0.95 m rather than the target of 0.93 m, while the right is at z = 0.937 m. Perhaps contact with the basket, either through the gripper or the car reaching the floor, is stalling the left arm at 0.95 m. In the high-camera view, the car seems to be on the basket floor, so releasing it may be appropriate. The right pepper also appears inside its basket, though I still need to ensure it is supported. I estimate the car’s bottom may be at z = 0.79 m and the pepper’s at z = 0.80 m, both close to the floors. A drop of a few centimeters seems acceptable for a stable placement. Perhaps the car is touching the white basket wall, but it is inside the basket. I will release both objects over three control steps while holding the current poses, then retract upward.

The objects have been released. I should retract upward and verify that they remain supported in the baskets. I am considering raising the left link6 to z = 1.05 m and the right to z = 1.04 m, keeping their X and Y positions unchanged, over 10 control steps. Once both arms are high, they could begin moving toward the next targets simultaneously. For now, I will first retract for 8 steps.

The higher target at the current forward position has again failed the local IK precheck. I should retract upward and toward the front of the baskets by decreasing Y. Possible targets are y = 0 m, z = 1.04 m or y = -0.03 m, z = 1.03 m. For the left arm, moving from its current y = 0.036 m, z = 0.95 m to y = -0.01 m, z = 1.04 m would be an estimated 0.122 m displacement and seems likely to be feasible. The right arm is in a similar situation. I will choose y = -0.03 m and z = 1.04 m for both arms. Moving away from the baskets while rising seems safe. I will use 10 control steps.

The first car and pepper have stayed in their baskets after withdrawal. Seven objects remain: the center and right cars; the left Snickers bar, the small yellow chocolate bar in the middle, and the long red-and-white chocolate bar on the right; and the red pepper and rightmost green pepper. I have used 131 control steps and have 969 left, so there is plenty of budget. I should be able to proceed more efficiently while keeping the manipulation reliable. The previous descent stopped at a link6 height of 0.923 m, perhaps because the finger tips contacted the table. I estimate the tips were at z = 0.765 m at that height, so the table top is likely at z = 0.765 m. The car center may be near z = 0.79 m. Could the basket floors also be at z = 0.765 m? That remains an estimate. Next I will use the left arm for the Snickers bar, initially estimated at x = -0.195 m, y = -0.128 m, and the right arm for the red pepper, initially estimated at x = 0.341 m, y = -0.146 m. Moving the left link6 from (-0.302, -0.03, 1.04) m to a pre-grasp pose at (-0.195, -0.128, 1.0) m would be an estimated distance of 0.155 m. Its current quaternion, [0.506, -0.493, 0.492, 0.509], is slightly off the downward quaternion [0.5, -0.5, 0.5, 0.5], with an estimated orientation difference of 0.02 rad. Moving the right link6 from (0.31, -0.03, 1.04) m to (0.34, -0.146, 1.0) m would be an estimated distance of 0.129 m. Fifteen control steps may reach these poses. Both grippers are open, and a direct path forward from the baskets at link6 z = 1.0 m appears clear. The finger tips would be near z = 0.842 m, above objects near z = 0.81 m. Before moving, I should refine the Snickers and red pepper positions. The Snickers appears near pixel (229, 253), as before. The red pepper may be near (489, 263), or around (490, 264), now that the other pepper has been removed. My earlier center at (489, 255) was selected while it was partly occluded. I now tentatively see its center near (489, 264), with a stem near (488, 251) and a body center near (490, 266). Using an assumed height of z = 0.79 m, I estimate that body position might map to x = 0.344 m, y = -0.16 m, but I should calculate it from the current calibration. I wonder whether the original red pepper center in obs_000000 was near (488, 257); in obs_000131 it appears near (490, 265). The remaining green pepper is near (524, 289). A crop or another view may not be necessary because the high-camera view is already clear. Looking again, I estimate the red pepper stem near (487, 252) and its body center near (490, 265). At an assumed z = 0.79 m, that pixel gives my tentative estimate of x = 0.345 m, y = -0.174 m. The earlier estimate of (0.3406, -0.1458) m using v = 255 likely overestimated Y. I need to grasp around the body center; (489, 264) is another candidate pixel. For the Snickers center at (228, 253), an assumed z = 0.77 m gives a tentative estimate near x = -0.196 m, y = -0.134 m. I also need to choose an orientation for grasping the thin bar. The Snickers appears to run from the lower left to the upper right, roughly from pixel (199, 263) to (255, 242), with an image slope of -0.375. Its long axis may run along both world +X and +Y, but I should calculate that rather than infer it from the image alone. I will inverse-project the candidate endpoints (201, 263) and (255, 243) onto the assumed z = 0.77 m plane to estimate its world orientation, along with refining the remaining object positions.

The estimated Snickers long-axis vector in world XY coordinates is (0.106, 0.0473) m, at an angle of about 24° above +X. I should align the gripper’s closing direction perpendicular to that axis. With q_down = [0.5, -0.5, 0.5, 0.5], local Y points along world -X, so the fingers close along X. Since the bar’s long axis is nearly along X, that would be a poor grasp direction. The perpendicular direction could be approximately (-0.407, 0.914) or its opposite, (0.407, -0.914). I will choose (-0.407, 0.914), mostly along world +Y. In the downward frame, local X points along world -Z, local Y along world -X, and local Z along world +Y. Applying a yaw about world Z preserves the downward finger direction: R = Rz(yaw) × R_down, and local Y becomes (-cos(yaw), -sin(yaw)). To obtain (-0.407, 0.914), I need yaw = -66°. The opposite closing direction would use yaw = 114°. I briefly considered whether yaw = +24° was appropriate, but the bar’s long-axis angle is 24°, while the desired closing angle is 114° or -66°. The current closing direction has angle 180°, so turning it to 114° requires a -66° yaw. This also rotates local Z and the wrist-camera orientation. I will calculate the quaternion for Rz(-66°) × R_down. The change from the current orientation is about 1.15 rad, exceeding the 1.0 rad per-action limit, so I need two stages. An oblique grasp with less yaw might also work. For example, yaw = -45° would give a closing angle of 135°; I wonder whether that would place it about 45° to the bar. Contact might be sufficient for an estimated bar width of 0.015 m and gripper opening of 0.08 m, but perpendicular alignment is best. I expect the object to remain visible in the wrist camera during rotation. The right arm can use q_down to grasp the red pepper with closure along X. For the Snickers, the estimated grasp center is (-0.193, -0.131) m in world XY. I considered a link6 height of z = 0.915 m. With the thin bar’s top estimated at z = 0.775 m, the finger tips would be near z = 0.758 m; if the table is at z = 0.765 m, that would mean 0.007 m of penetration. The previous descent stopped at link6 z = 0.923 m, with tips near z = 0.766 m, so I will use z = 0.923 m as the grasp target. Yaw leaves the finger-tip direction vertical. I can first position above the Snickers at link6 z = 1.0 m while turning to an intermediate yaw of -45°. That orientation change is about 0.785 rad plus a small difference from the current pose, within the 1.0 rad bound. The subsequent turn from -45° to -66° is about 0.366 rad. I plan to use 15 control steps for the positioning motion, with the right arm using q_down. First I will calculate the yawed quaternions for -45° and -66°.

The quaternion for a -45° yaw is approximately [0.653, -0.271, 0.653, 0.271]. Local +X still points downward, so this is suitable. It differs from the intermediate quaternion used during the initial approach. I will move the left arm above the Snickers bar at (-0.193, -0.131, 1.0) m using the -45° yaw orientation, and the right arm above the red pepper at (0.336, -0.168, 1.0) m using the downward quaternion [0.5, -0.5, 0.5, 0.5]. The left orientation change from the downward pose is approximately 0.785 rad; the right orientation is already close to downward. I will use 15 control steps with both grippers open. The left arm may not finish its rotation in that time, which is acceptable for this positioning motion.

The left arm has essentially reached its pre-grasp pose, while the right arm is only partway there: its measured Y is -0.12 m versus the target of -0.168 m, and its Z is 1.016 m. I will continue the right approach while finishing the left gripper’s yaw alignment. In the left wrist view, the Snickers bar appears nearly vertical, with the fingers at the lower left and right and the closing direction horizontal in the image. Perhaps the current -45° yaw is already adequate, and the planned -66° yaw is unnecessary. I wonder whether the rotated camera view made my yaw calculation misleading. At -45° yaw, however, the closing direction along local Y has a world angle of 135°, while the estimated bar long-axis angle is 24° and its perpendicular is 114°. That leaves a 21° alignment error. Visually, the bar appears about 8° from vertical, giving roughly 82° between its long axis and the horizontal closing direction, which looks good. Would the final -66° yaw make it appear angled instead? Using the world-angle estimate, -66° yaw should align the closing direction exactly with the 114° perpendicular. The current difference is |135° - 24°| = 111°, or an acute angle of 69°, confirming the 21° deviation from perpendicular. The bar also looks roughly 10° from vertical in the wrist view, perhaps because of projection. I will proceed with the final -66° yaw while keeping the left arm at its pre-grasp position. Rotating near the object could be a concern, but the left link6 is at Z = 1.002 m, the estimated fingertips are at Z = 0.844 m, and the bar top is at Z = 0.775 m, so there appears to be clearance. The right target remains (0.336, -0.168, 1.0) m. I will use eight control steps, which may let the right arm reach its target and the left arm complete the approximately 0.366 rad rotation.

The bar now appears exactly vertical, with the fingers on its left and right, so the alignment looks good. I should refine its X and Y position using the wrist calibration. I tentatively estimate the Snickers center at pixel (333, 166), assuming z = 0.77 m. The left link6 is currently at (-0.192, -0.131, 1.0) m. The bar spans approximately v = 0–290 pixels, putting its vertical midpoint at v = 145 pixels; another possible center estimate is (334, 160). If the link6 X and Y alignment is correct, is the object about 0.08 m below the finger tips at link6 z = 1.0 m? I estimate the wrist camera height at z = 0.915 m, giving an object-to-camera Z difference of -0.145 m, but I am unsure where that should project vertically in the image. The yaw rotation also changes the camera’s horizontal offset. I will inverse-project the estimated wrist-image center into world coordinates. The high-camera center at pixel (228, 253), assuming z = 0.77 m, gives approximately (-0.1933, -0.1309) m in world XY, which matches the link6 position, so the X and Y alignment looks good. The red pepper’s center appears near pixel (315, 184) in the right wrist view. I will also inverse-project that point assuming z = 0.79 m and compare it with the high-camera estimate.

The left wrist estimate puts the Snickers bar at x ≈ -0.185 m, while the high-camera estimate gives x ≈ -0.193 m. I will choose x = -0.190 m. Perhaps the bar’s center is at v = 140 pixels rather than 150; that could change the X estimate by about 0.003 m. I will descend both link6 poses toward z = 0.923 m. The thin bar might require a lower grasp height, but the earlier descent stopped at 0.923 m. I considered six control steps, but the final-approach instructions call for 1–3 steps, so I will use repeated three-step actions. The planned descent from 1.0 m to 0.923 m is 0.077 m. I tentatively expect successive three-step actions to reach heights near 0.976 m, 0.952 m, and 0.928 m, followed by another action toward 0.923 m. For this first three-step action, I will keep both grippers open. The left XY target will be (-0.190, -0.132) m with the final aligned quaternion [0.691655, -0.147016, 0.691655, 0.147016]. The right XY target will be (0.335, -0.168) m with the downward quaternion [0.5, -0.5, 0.5, 0.5].

The last three control steps lowered the left link6 by 0.034 m, faster than before. It is now 0.043 m above the target height of z = 0.923 m, so I expect about two more short actions may be needed. I will continue the descent with another three control steps.

The left and right link6 heights are now 0.932 m and 0.935 m, respectively. In the left wrist view, the bar appears to extend from v = 0 to v = 440 pixels, with its center near v = 220 pixels. Is the gripper’s contact region lower in the image? At the final link6 height of 0.923 m, the bar may appear near v = 480 pixels; that could be acceptable. The right pepper’s center is below the image, but it is likely aligned. I will descend toward the final target height for three more control steps.

The high-camera view makes me wonder whether the Snickers bar has shifted. It originally spanned approximately x = 198–256 pixels, and its left portion now appears near x = 201 pixels. Perhaps the gripper fingers pushed it. The small yellow chocolate bar also seems to have rotated from nearly horizontal to more diagonal. The left finger near pixel (242, 265) is close to that bar near (257, 270), so it may have brushed or pushed it during descent. The yellow bar is also visible at the right edge of the wrist view. I should note this possible unintended collision; the instructions say to stop and replan if a collision occurs. I am uncertain about the yellow bar’s change in position and orientation. I initially consider its earlier span as approximately (234, 273) to (278, 267), but recall a diagonal span from (235, 273) to (278, 257). It now appears to span roughly (239, 279) to (278, 252), perhaps making it more vertical. I should inspect its actual position later. This does not appear catastrophic. To avoid further contact, I will grasp the Snickers promptly and lift it, then localize the small bar again. The Snickers body appears to fit between the fingers in the left wrist view. I initially estimate the finger edges near x = 280 and x = 415 pixels, and the bar spanning x = 285–395 pixels. Looking again, the bar is centered near x = 340 pixels; the left finger reaches x = 278 at y = 260, and the right finger starts near x = 415. That leaves a gap of 137 pixels, compared with an estimated bar width of about 120 pixels at the bottom. The red pepper also appears large between the right gripper’s fingers. Four control steps may be enough for closure, so I will close both grippers while holding their current poses, then check the grasps before transport.

The left gripper opening command is 0.19, which I interpret as a grasp across the Snickers bar’s narrow width. The right opening command is 0.408, which I interpret as contact with the red pepper. I will make a small test lift over three control steps toward a link6 height of approximately z = 0.95 m, then verify that both objects follow their grippers.

Both objects stayed in the same positions relative to their wrist views during the test lift, suggesting that they followed the grippers. In the high-camera view, the Snickers bar is still visible near (225, 250) pixels, so I am less certain from that view alone whether it lifted. The bar’s long axis appears vertical in the wrist image, while the bar remains flat and horizontal in the top-down grasp. Is its approximately 0.11 m length aligned along the left gripper’s local Z axis? The upward path appears clear for both the bar and the red pepper. I will raise both link6 poses to z = 1.04 m over eight control steps, keeping the grippers closed and their orientations steady before transport.

I will carry the bar with the left arm toward the middle basket, whose center may be at x = 0 m, y = 0.02 m, and carry the red pepper toward the right basket at approximately x = 0.31 m, y = 0.02 m. Could the left arm’s path pass over the central car at approximately (0.04, -0.18) m? The planned path runs from y ≈ -0.13 m to 0.02 m and x = -0.19 m to 0 m, but the transport height appears sufficient to clear it. I initially considered intermediate poses at y = -0.06 m and z = 1.04 m, with left x = -0.08 m and right x = 0.32 m. For the left arm, the estimated X and Y changes are 0.11 m and 0.073 m, giving a distance of about 0.132 m; I estimated the right distance as 0.17 m. Perhaps the left arm could move directly to (0, 0, 1.0) m. From its measured pose of (-0.19, -0.133, 1.037) m, the displacement components would be (0.19, 0.133, -0.037) m, with an estimated distance of 0.235 m, within the command bound. However, earlier targets at y = 0.04 m and z = 1.04 m failed the precheck. The middle target at x = 0 m might be easier to reach, although reaching there from the left base at x = -0.3 m increases the distance. Using an intermediate pose before lowering seems preferable. The front-rim targets at y = 0 m and z = 1.04 m were reachable at x ≈ ±0.3 m; the middle target at x = 0 m may be similar. I also considered a direct target of (0, 0, 1.02) m, estimating its distance as 0.236 m, but the precheck might fail because of the joint configuration. I will instead use intermediate link6 targets of (-0.09, -0.05, 1.04) m for the left arm and (0.31, -0.06, 1.04) m for the right, then continue toward the baskets. From the right arm’s current x = 0.335 m and y = -0.169 m, its target distance is approximately 0.112 m. I will keep both grippers closed and their orientations steady, using 10 control steps.

Only the left arm was reported as failing the precheck; was the right arm’s result simply not reported? Neither arm moved. Perhaps the left target over the middle basket requires too much motion across X, so I should first use an intermediate position around x = -0.05 m, y = -0.02 m. The right target may have passed, but the left failure prevented both arms from moving. I will use a closer left link6 target of (-0.06, -0.02, 1.02) m and retain the right target of (0.31, 0.025, 1.0) m. I will execute eight control steps.

The left gripper’s -66° yaw may be making the middle basket harder to reach because of the arm’s kinematics. Perhaps returning to the downward orientation at 0° yaw would improve the IK solution. I can rotate while holding the bar, since its orientation is not constrained for basket placement. The rotation from -66° yaw to the downward orientation is about 1.15 rad, exceeding the 1.0 rad action limit. I need an intermediate orientation, such as -45° yaw or -30° yaw. I will use -45° yaw and rotate in two stages while keeping the left link6 at its current position, (-0.123, -0.081, 1.034) m. The first target quaternion is approximately [0.653, -0.2706, 0.6533, 0.2706], requiring a rotation of about 0.366 rad, or 21°, from -66° to -45° yaw. This should be straightforward. The subsequent rotation to 0° yaw would be 45°, about 0.785 rad. For this action, I will rotate the left gripper to -45° yaw at the same position while the right arm continues toward its basket target. Both grippers will remain closed, and I will use eight control steps.

The right link6 is at y = -0.011 m and z = 1.007 m, with the pepper over the right basket. Lowering it to z = 0.94 m at y = 0.02 m is likely feasible. I will rotate the left gripper to the downward quaternion [0.5, -0.5, 0.5, 0.5] while keeping its position unchanged, then target the middle basket next. For this action, I plan to use five control steps, rotating the left gripper downward and moving the right link6 to (0.31, 0.025, 0.95) m with both grippers kept closed.

The left gripper rotated only partway, about 0.4 rad over the last six control steps, and has not yet reached the downward orientation. The red pepper is inside the right basket, but does it appear supported? I could release it now with the right link6 at z = 0.95 m; I estimate the pepper’s bottom is near z = 0.78 m and the basket floor near z = 0.765 m. The green pepper is already there. I will release the right gripper over three control steps while the left continues rotating toward the downward quaternion [0.5, -0.5, 0.5, 0.5]. I will keep the left gripper closed at its current position and hold the right pose unchanged while opening it.

The left gripper has still not reached the downward orientation. At a joint rotation speed of 0.1 rad per control step, I would expect five steps to allow 0.5 rad of rotation. I had estimated about 0.42 rad remaining from the previous quaternion [0.615, -0.349, 0.616, 0.348] to the downward target [0.5, -0.5, 0.5, 0.5], but the change to the current quaternion [0.573, -0.414, 0.574, 0.414] appears to be only about 0.18 rad. Perhaps the held object's inertia is slowing the rotation. I should continue turning while holding the left position unchanged and keeping its gripper closed. The right release looks successful. I will retract the open right gripper to (0.31, -0.03, 1.04) m over 10 control steps, using the same withdrawal path as before. I considered five more steps for the left rotation; both motions can run simultaneously.

The left gripper has reached the downward quaternion [0.5, -0.5, 0.5, 0.5]. The bar’s long axis still appears vertical in the wrist view; should it have become horizontal after the rotation? The wrist camera rotates with the gripper, and the bar remains fixed relative to the gripper, so its unchanged image orientation makes sense. In the high-camera view, the bar appears near the left edge of the blue middle basket, oriented along Y, though it may still be over the white left basket. I will move it toward the middle basket. I will target the left link6 at (0, 0, 1.02) m from its measured position of (-0.124, -0.081, 1.034) m, keeping the downward orientation and the gripper closed. I estimate the target distance as 0.148 m. Will this now pass the local precheck? I initially considered 10 control steps. Meanwhile, the right arm can approach the last remaining green pepper with its gripper open. Its forward path appears clear. The pepper’s center near pixel (524, 288) in the high-camera view gives an estimated world XY position of (0.386, -0.216) m; I will use a pre-grasp target of (0.386, -0.218, 1.0) m. From the right arm’s measured position of (0.31, -0.03, 1.04) m, I estimate the target distance as 0.205 m. Both arms will retain the downward quaternion, and I will execute these motions together for 12 control steps.

The left target at (0, 0, 1.02) m still fails the local reach precheck. I could try a closer waypoint at (-0.07, -0.05, 1.02) m; I estimate its displacement components from the current pose as (0.054, 0.031, 0.014) m, with a total distance of about 0.064 m. The earlier target at (-0.06, -0.02, 1.02) m failed with about 19 mm of position error at a yaw of -66°. A closer target may now pass with the gripper pointing downward. I will use (-0.07, -0.03, 1.02) m for the left arm, retain the right arm’s approach target for the green pepper, and execute 10 control steps.

The left waypoint came close to passing, with a position error of about 7.7 mm. I could try a target of (-0.075, -0.04, 1.025) m or (-0.08, -0.05, 1.03) m. Why is such a small movement failing? Could a collision involving the held bar explain it? The precheck is numerical IK only, so that would not explain this rejection. Perhaps the local search is stalling near joint limits in the current configuration, limiting motion toward positive X at this orientation. Could changing to an equivalent orientation help? The current downward orientation has local +Z along world +Y. Another top-down orientation with 180° yaw would put local +Z along world -Y and local +Y along world +X, while keeping the fingers pointing downward. It might allow a different joint configuration and easier reach, but it would require a rotation of π radians. Before trying that, I will make a smaller change in X or Z. The left target (-0.09, -0.05, 1.03) m is close to the measured pose and seems likely to be reachable. I can then continue in small increments. The left precheck failures have also prevented the right arm from moving; retaining its existing pepper-approach target is fine. I will try the smaller left target, keeping the bar held, and initially plan six control steps.

The left arm moved approximately 0.034 m in X and 0.028 m in Y. The right arm moved only partway toward its target during the eight control steps. I will try the next left link6 target at (-0.04, -0.01, 1.0) m, continuing in smaller increments and lowering Z to 1.0 m. From the current pose of (-0.092, -0.053, 1.028) m, I estimate the target distance as 0.071 m, so it may pass the precheck. The eventual goal is to reach the middle basket center at X = 0 m and Y = 0 m. The right arm will continue toward its existing target of (0.386, -0.218, 1.0) m. I will use 10 control steps for both motions.

Perhaps the left arm cannot reach the middle basket with the downward orientation when moving farther toward positive X from its current x ≈ -0.09 m. I would expect it to reach, since the left base is at x ≈ -0.3 m and the middle basket is at x = 0 m, only 0.3 m away along X. Could a different orientation, perhaps +45° yaw, help with wrist or elbow constraints? The left basket at x ≈ -0.3 m was reachable. Reaching the middle basket requires extending to the right, and with an estimated base position of x = -0.3 m, y = -0.55 m, the planar distance is sqrt(0.3² + 0.55²) ≈ 0.626 m. The arm’s maximum reach may be about 0.6 m, though these robots usually reach 0.55 m. I may need to use the right arm for the middle basket. The left arm might still reach the nearer left portion of the middle basket at x = -0.07 m, y = 0 m. The target at x = -0.04 m, y = -0.01 m, z = 1.0 m failed with about 27 mm of position error; perhaps only x ≈ -0.067 m is reachable at that Y coordinate. Could I place the bar near x = -0.07 m, y = -0.03 m if that is inside? I estimate the basket’s left edge at x = -0.145 m and its X span as -0.145 to 0.145 m, so an end-effector X coordinate of -0.07 m seems safely inside. The skill says to aim at the center when explicit hints are given, but the task only requires placement in the basket. A placement on the left side at x = -0.08 m, y = 0 m may therefore suffice and be reachable. The current left end effector is at x = -0.092 m, y = -0.053 m, and the bar may already be over the left wall. I could move forward to y = 0 m while keeping x = -0.09 m and using z = 0.98 m. I will instead try the target (-0.09, 0, 1.0) m, whose estimated distance from the current pose is 0.061 m. It seems likely to be reachable and would put the bar in the basket’s left half. The right arm will continue toward the pepper. I initially plan eight control steps.

The left target at x = -0.09 m, y = 0 m, and z = 1.0 m failed the precheck with about 14 mm of position error. Lowering to z = 0.95 m might make it reachable, but could bring the held bar into contact with the basket rim. I could first lower at the current y = -0.053 m to z = 0.96 m, then move forward. I tentatively estimate the bar’s bottom to be about 0.14 m below link6, currently near z = 0.89 m and above the rim. At link6 z = 0.96 m, its bottom would be near z = 0.82 m, close to the rim; it might just clear during the inward motion. Could tilting the gripper horizontally improve reach? I could return to the initial horizontal gripper orientation, though I am unsure whether that would leave the bar vertical. That may be unnecessary if lowering works. I will try a left link6 target of (-0.092, -0.03, 0.96) m, making a small forward and downward motion before later moving to y = 0 m. This may pass the precheck. The right arm will continue its approach to the green pepper. I will use eight control steps.

The left link6 did not reach the target height of z = 0.96 m; it stopped at z = 0.984 m, and its opening command changed from 0.188 to 0.249. Does the bar look bent or folded in the wrist view? It may have collided with the blue basket’s front wall. At approximately x = -0.09 m, y = -0.042 m, and z = 0.984 m, I estimate the bar’s bottom and the wall’s top are both near z = 0.84 m. The increased opening suggests the object was forced against something. I should stop the inward motion and replan, withdrawing upward and backward to avoid damaging or dropping it. In the high-camera view, the bar appears vertical near pixel (275, 209), across the blue front wall near image y = 211, and may be resting on it. I need to lift and reach farther to get inside, but the arm’s reach is limited. I could hand the bar to the right arm, or move the basket closer as the skill permits. Pulling the basket forward would require first putting the held bar temporarily back on the table, which would add work. Releasing now does not seem appropriate: the bar appears outside the front wall, with its bottom near image y = 228 and the blue basket’s front near y = 212, so it would likely fall onto the table rather than inside. A forward-facing horizontal grasp may solve the reach problem. If link6 cannot reach y = 0 m at z = 1.0 m, horizontal fingers could extend the object about 0.14 m along world +Y beyond link6, allowing placement while link6 stays near y = -0.1 m. In the current top-down pose, the object’s XY position is approximately link6’s XY position, requiring link6 itself to be over the basket. Would rotating to horizontal move the held bar forward and downward? Should I rotate about local Y? The initial horizontal orientation is a 90° Z rotation, with local +X along world +Y, local +Y along world -X, and local +Z along world +Z. In that pose, the object would be held near the tips at approximately y_eef + 0.13 m and the same Z as link6. A link6 height near z = 0.90 m would therefore hold the object near z = 0.90 m above the basket. I could rotate the bar from top-down to horizontal at a pre-basket pose around x = -0.09 m, y = -0.10 m, z = 0.98 m. Its swept path may move forward and upward, so I should instead rotate with clearance at y = -0.15 m or z = 1.05 m. Then a link6 pose near y = -0.1 m, z = 0.9 m could extend the object to y = 0.03 m inside the basket. This may also simplify the remaining placements, though rotating a held bar could cause slipping. The task does not constrain its orientation inside the container. Another option is a top-down pose with 180° yaw to change the arm’s joint configuration. I am unsure whether that quaternion would begin with -0.5. Rotating 180° might improve reach, but the object center would still require link6 to be over the basket. A different elbow configuration might make that possible; however, the earlier precheck miss of 14 mm suggests the arm is near its limit, and horizontal finger extension seems a more robust solution. My estimated base positions are x = ±0.3 m and y = -0.55 m, with their height still unclear. Initially, link6 was near y = -0.352 m and z = 0.922 m, with the fingers extending horizontally along +Y. The baskets are near y = 0.05 m; is the base-to-fingertip distance about 0.55 m? With horizontal fingers, link6 at y = -0.1 m plus about 0.15 m of finger extension would reach y = 0.05 m. A top-down placement instead requires link6 itself to reach y = 0.05 m, about 0.6 m forward of the estimated base, perhaps too far. This makes me think horizontal placement is intended. The first car and peppers were placed top-down at y = 0.036 m and z = 0.95 m, but seemingly near the reach limit. The middle basket at x = 0 m is farther from the left base at x = -0.3 m. Could the right arm handle future chocolates more easily? Its base at x = 0.3 m is also 0.3 m from the middle basket along X, so horizontal placement may be needed there too. Before rotating, I will withdraw the left arm into clear space at (-0.09, -0.15, 1.04) m, keeping the bar held and the orientation near downward. From the measured pose (-0.089, -0.042, 0.984) m, I estimate this target is 0.122 m away and likely to pass the precheck while moving away from the wall. The right arm will continue toward its green-pepper target. I will use 10 control steps for the left withdrawal and right approach together.

The left gripper opening command has returned to 0.188, and the bar is still held. The right arm is at its pre-grasp pose above the green pepper, with link6 at z = 1.0 m. I can descend the right arm toward z = 0.923 m in three-step increments. I will rotate the left gripper toward horizontal in two stages. The intermediate quaternion is approximately [0.653, -0.271, 0.271, 0.653], halfway between the downward orientation and the horizontal quaternion [0.707, 0, 0, 0.707]. Each stage changes orientation by approximately 0.785 rad. The left arm’s current position, (-0.09, -0.148, 1.04) m, is in clear space and seems safe for this rotation. I considered rotating the left gripper for 10 steps while descending the right arm for three, but both arms share the same action step count. I could use repeated three-step actions, allowing the left rotation to progress while the right descends slowly. Alternatively, an eight-step rotation would be reasonable in clear space, but sending the right arm toward its contact height for all eight steps could make its final approach too fast. I will therefore hold the right arm stationary with its gripper open and rotate only the left gripper to the intermediate orientation for 10 steps, keeping the bar held. The right descent can follow afterward.

The left gripper rotated only about 0.25 rad over the last 10 control steps; could joint limits be slowing it? Its current quaternion is [0.597, -0.377, 0.377, 0.599], compared with the intermediate target [0.653, -0.271, 0.271, 0.653], leaving roughly 0.37 rad of rotation. It may need another 10 steps. I could continue the left rotation while descending the right arm, but an eight-step action toward the right grasp height of z = 0.923 m could make the approach too fast. Another option is an intermediate right height of z = 0.95 m: eight steps might complete that 0.05 m descent, with the final descent afterward. However, near contact I should use only 1–3 steps. I will use three steps to continue the left turn and begin the right descent. With the proposed intermediate target of z = 0.95 m, the right arm might only reach about z = 0.985 m during those three steps, which would be acceptable.

The left gripper is closer to the intermediate orientation but has not reached it yet. The right link6 is at z = 0.968 m. I will take another three control steps, continuing the left rotation toward the intermediate orientation and the right descent toward z = 0.923 m. I expect the right link6 may reach about z = 0.936 m during this action.

I am unsure of the bar’s Y position in the high-camera view. It seems to be dangling vertically below the left gripper near the front of the blue basket, but it appears clear of obstacles. I briefly wonder whether the right green pepper shifted slightly left, but its horizontal image coordinate is still about 524 pixels, the same as before. I will take another three control steps. The left gripper will likely reach the intermediate orientation, and the right link6 should reach the target height of z = 0.923 m.

The left gripper has reached the intermediate orientation. I will now rotate it toward the horizontal quaternion [0.70710678, 0, 0, 0.70710678] while closing the right gripper around the green pepper. I will use four control steps for both arms; it is acceptable if the left rotation is only partially completed during this action.

The right gripper’s opening command is 0.369, which I interpret as contact with the green pepper. The left rotation is progressing slowly—perhaps about 0.15 rad over four control steps. I will make a three-step test lift with the right arm toward link6 z = 0.948 m while the left gripper continues rotating toward the horizontal orientation for the same three steps.

The green pepper followed the test lift. I will raise the right link6 to z = 1.04 m over eight control steps while continuing to rotate the left gripper toward the horizontal orientation. Eight steps may also let the left gripper finish turning.

The left gripper is nearly horizontal but has not finished turning; its quaternion begins with components 0.697 and -0.112. Another eight control steps might complete the rotation. The right link6 is at transport height, z = 1.032 m. I will move it to the intermediate position (0.31, -0.06, 1.04) m before continuing toward the right basket, while the left gripper finishes turning horizontal. I will use 10 control steps for both motions.

The left gripper is almost horizontal. In the high-camera view, is the black link6 cylinder now upright? The fingers seem to point forward near image y = 145 pixels, and the bar may be at their tips around pixel (277, 146). Is it above the blue basket’s interior? The current left link6 position is (-0.084, -0.146, 1.047) m. With the gripper horizontal and the fingers extending about 0.14 m along world +Y, I estimate the held object’s center at y = -0.006 m and z = 1.047 m. That would put it at link6 height, about 0.2 m above the estimated basket rim at z = 0.84 m. Its Y position may still be near the basket’s front. For placement, I could lower link6 to z = 0.86 m, putting the object near that height, and move link6 to y = -0.10 m so the object reaches y = 0.04 m. Alternatively, I could first lower vertically to z = 0.90 m at the same X and Y, keeping the object above the rim, then move forward to y = -0.10 m to center it. This should make the arm’s reach easier. I should finish the exact horizontal orientation before placing the bar. I initially consider another three control steps toward the horizontal quaternion [0.70710678, 0, 0, 0.70710678], while the right arm continues toward its intermediate position of (0.31, -0.06, 1.04) m. Perhaps I will use five steps; it is acceptable if the right arm has not reached its waypoint yet. The left placement can follow afterward.

The left gripper has reached the horizontal orientation. Is the bar still high above the basket? It appears black in the high-camera view, though I am unsure of that interpretation. The bar still looks very large in the wrist view, with the basket below it. The right arm can use the previously successful top-down approach to its basket at y = 0.025 m and z = 1.0 m, then lower the pepper. For the left arm, I considered descending from link6 z = 1.047 m to z = 0.90 m while keeping XY at (-0.084, -0.146) m. That would be a 0.147 m descent, perhaps using 10 control steps. I am still unsure of the bar’s approximate Y position and the clearance during descent, but the fingers appear to extend over the basket, with no expected contact until the rim. I will instead target z = 0.94 m for eight control steps and inspect afterward. Simultaneously, I will move the right arm toward (0.31, 0.025, 1.0) m for the same eight steps, keeping both grasps closed and their orientations unchanged.

The left link6 is at z = 0.963 m, and the bar’s bottom may be near z = 0.94 m, above the basket. Should I lower link6 to z = 0.86 m? Is the object at approximately the same height as link6, z = 0.963 m? In the high-camera view, the bar may be near pixel (256, 177). It seems to lie horizontally from image x = 218 to 291 at y = 174, over the left side of the blue basket. Looking more closely, the black fingertips appear horizontal near image y = 170, and the brown bar appears around image x = 240–285, y = 175, above the basket’s left edge. With the gripper horizontal, I expect the object center to be at roughly the link6 height. I estimate the basket rim top at z = 0.84 m and the floor at z = 0.765 m. Lowering link6 to z = 0.80 m could put the bar center inside at that height. The horizontal fingers would also be at z = 0.80 m; would they collide with the floor if they extend to y = 0 m? The estimated floor clearance would be 0.035 m. The more immediate problem is the front wall: the gripper body is outside at y = -0.146 m, and lowering the fingers below the rim, estimated here at z = 0.85 m, would make them pass through that wall. I should enter above the rim before lowering. At the current link6 y = -0.146 m, the fingers extend to approximately y = 0.01 m. The front wall may be at y = -0.03 m, so the finger bases remain outside while their middle portions cross the wall. Lowering to z = 0.80 m would cause contact there. Perhaps horizontal placement requires releasing above the rim and letting the bar drop, unless I can move link6 far enough forward to clear the wall. Keeping the bar above the rim and allowing a drop of about 0.05 m seems acceptable for stable placement. At the current link6 z = 0.963 m, the bar may be near z = 0.95 m, giving a drop of about 0.17 m. That may be too high, although the basket would still contain it. I could lower to z = 0.90 m, keeping the bar and fingers above the estimated 0.85 m rim, then release for a drop of about 0.12 m. I also need to move the bar farther inward. With link6 at y = -0.146 m and the grasp contact about 0.12 m along local +X, I estimate the object at y = -0.026 m. The blue basket’s front wall is around y = -0.025 m and its center around y = 0.06 m, so the bar is currently over the wall rather than the interior. Moving link6 to y = -0.08 m would put the object near y = 0.04 m. At the approximately 0.94 m height I am considering, it would remain above the rim during that forward motion. Horizontal reach should be easier. I could then lower to z = 0.89 m and release over the interior; only the object needs to be over the basket. For the next action, I will target the left link6 at (-0.084, -0.08, 0.92) m while retaining its horizontal orientation. The planned position change is (0, +0.066, -0.043) m. I will lower the right link6 to z = 0.95 m at y = 0.025 m. Eight control steps seem appropriate. The left bar is currently near z = 0.96 m with link6 at z = 0.963 m, and the target height of 0.92 m should still clear the estimated 0.85 m front rim. The right placement follows the previously used approach. Both grippers will remain closed.

The left link6 has reached its target height of z = 0.92 m. I am unsure whether the bar is visible in the high-camera view; perhaps it is the black or brown object near the blue basket’s front-left area, though I cannot clearly see brown there. The left wrist view still shows the bar held. The right descent stalled at z = 0.978 m. Its opening command increased from 0.364 to 0.456, and its orientation tilted, suggesting that the held green pepper likely contacted the red or green pepper already in the basket. It is inside the basket above the red pepper and appears supported by the other peppers. I should avoid pressing farther and release it now, allowing it to drop into the basket if needed. I will also release the bar above the middle basket’s interior with the left link6 at z = 0.92 m. I estimate a drop of 0.13 m, which seems acceptable. I will hold both current poses and open both grippers for three control steps.

The Snickers bar is visible inside the blue middle basket at the bottom of the wrist view. All three peppers are inside the red right basket: a green pepper at the front, with the red pepper and another green pepper at the back. I will retract both arms into clear space and verify the placements after withdrawal. The left gripper is horizontal at y = -0.08 m and z = 0.92 m. Its open fingers may still cross the rim, so I should move backward to y = -0.16 m while raising it toward z = 1.0 m to avoid the wall. My selected left link6 target is (-0.084, -0.16, 1.02) m, retaining the horizontal orientation; I estimate the target distance as 0.132 m. The right gripper is approximately top-down at y = 0.021 m and z = 0.979 m. I could retract to y = -0.03 m and z = 1.05 m, or reuse the previous withdrawal height of 1.04 m, which seems safe. I will choose (0.31, -0.03, 1.04) m. Its current orientation appears close to downward, so I can command the downward quaternion [0.5, -0.5, 0.5, 0.5], with an estimated orientation change of 0.04 rad. Both grippers will remain open, and I will use 10 control steps.

Four objects remain: the center and right cars, the small yellow chocolate bar in the middle, and the long red-and-white chocolate bar on the right. The cars belong in the left basket and the bars in the middle basket. I could pick the small bar with the left arm and the right car with the right arm, then place them in the blue and white baskets. Their paths might cross near the baskets, but I could separate the placements in time. Another option is to pick the center car with the left arm and the long bar with the right arm; those paths could also conflict near the middle and left baskets. Picking both bars together seems easier. The left link6 is currently at (-0.084, -0.159, 1.018) m with the gripper horizontal, close to the small bar’s estimated XY position of (-0.126, -0.170) m. The right link6 is at (0.31, -0.03, 1.04) m with the gripper downward, well positioned to approach the long bar near (0.146, -0.221) m. I can pick the bars in parallel and place them sequentially in the blue basket. Then I can pick the two cars in parallel, with the left arm handling the center car and the right arm handling the right car, and place them sequentially in the white basket. With four objects and roughly 400 steps left, I expect enough budget. I need to refine the small bar’s position and orientation after the possible earlier bump. In the high-camera view, I tentatively place its center at pixel (258, 270), with endpoints around (234, 277) and (279, 258). It appears yellow with a green bottom. Another estimate of its long axis runs from (235, 275) to (279, 261), at an image angle of perhaps -17°. I will inverse-project the endpoints using an assumed height of z = 0.77 m. Its world-XY long-axis vector may be about (0.08, 0.02) m, similar to the Snickers bar but with a shorter length of about 0.07 m. A top-down grasp perpendicular to that axis should be appropriate. I could use a yaw of -45° or -66° again. The left gripper is currently horizontal with the 90° Z-rotation quaternion. I initially estimate the dot product between that quaternion and the top-down quaternion with -45° yaw as 0.462, giving an orientation distance of 2 × acos(0.462) = 2.19 rad. That would require intermediate orientations. One route is to turn from horizontal to the intermediate tilt, then fully downward, then add -45° yaw. Closing along X in the standard downward pose might instead grasp along the bar’s length, so I should align across its width rather than use that pose without yaw. I also considered swapping the bars between arms. The long bar is farther away for the left arm, at x = 0.146 m. The right arm is already downward and might reach the small bar at x = -0.126 m across the center, but that could be too far, even if reachable over the table. I am not sure it would make the middle-basket placement easier. Perhaps I can combine yaw and tilt rather than use three separate rotations. The desired top-down orientation with -66° yaw is Rz(-66°) × Rx(-90°) × Rz(90°); I have not resolved whether rewriting that product gives a simpler route. I should check whether a direct quaternion target is within the 1.0 rad action limit. Using the horizontal quaternion [0.707, 0, 0, 0.707] and the -45° yaw quaternion [0.653, -0.271, 0.653, 0.271], the dot product includes both 0.462 and 0.192, totaling 0.654. That gives an orientation distance of about 1.71 rad, still above 1.0 rad. For the -66° yaw quaternion [0.692, -0.147, 0.692, 0.147], the dot product is approximately 0.489 + 0.104 = 0.593, giving a distance of about 1.87 rad. I could use a halfway slerp from the horizontal orientation to the -45° yaw target, then finish the rotation. The intermediate fingers would not necessarily point fully downward, but that should be safe at clearance height. This uses two rotations instead of three. Since the quaternion dot product is positive, I can calculate the midpoint by normalizing their sum. A -45° yaw may be adequate: the Snickers bar appeared nearly vertical in the wrist view at -45° and exactly aligned at -66°. If the small bar’s world angle is around 30°, -66° yaw may be better. I could therefore use the -66° final target with a normalized quaternion midpoint directly from the horizontal pose. For the right bar, I tentatively see endpoints at pixels (377, 274) and (411, 315), giving a diagonal axis down and to the right. Its world-XY long-axis vector might be around (0.06, -0.08) m. I will calculate it using endpoints (378, 274) and (411, 314) at the assumed z = 0.77 m plane. My tentative world endpoints are (0.115, -0.184) m and (0.176, -0.254) m, giving a vector of (0.061, -0.070) m and a long-axis angle of -49°. The perpendicular closing-axis angle would be 41°. The standard downward gripper closes along world X, which can be described as an angle of 180° or 0° because the closing axis is undirected. With yaw, local Y has angle 180° + yaw. A +41° yaw gives 221°, equivalent to a closing-axis angle of 41°, perpendicular to the estimated -49° long axis. The corresponding quaternion may begin near 0.295; the earlier +45° yaw quaternion was [0.2706, -0.6533, 0.2706, 0.6533]. Turning the right gripper from its current downward pose to +41° yaw would require about 0.715 rad, within the action limit. For the left bar, a tentative world long-axis angle of 24° would instead call for a closing-axis angle of 114°, achieved with -66° yaw. I will now use the high-camera calibration from obs_000322 and manually selected center and endpoint pixels to calculate more precise object positions and long-axis angles. I will also calculate the left quaternion midpoint and candidate right yaw quaternions before choosing the approach targets.

The small bar’s estimated long-axis angle is 25°, suggesting a yaw of -65° for a grasp across its width. I will use the same final -66° yaw quaternion as before. The long bar’s estimated angle is -56.5°, so its perpendicular closing direction is 33.5°; I will choose a right-gripper yaw of +35°. For the left arm, the normalized quaternion midpoint between the horizontal pose and the final grasp orientation is approximately [0.78364, -0.08236, 0.38749, 0.47851]. This gives a halfway rotation of about 0.935 rad, within the 1.0 rad limit. Moving from the current link6 position of (-0.084, -0.159, 1.018) m to the pose above the small bar at (-0.128, -0.170, 1.0) m has an estimated distance of 0.051 m. For the right arm, moving directly from (0.31, -0.03, 1.04) m to the pose above the long bar at (0.146, -0.221, 1.0) m has an estimated distance of 0.255 m, exceeding the 0.25 m limit. I considered an intermediate pose at (0.22, -0.15, 1.02) m, with an estimated distance of 0.188 m. The rotation from the downward orientation to +35° yaw is about 0.61 rad. A direct target above the long bar at z = 1.02 m would still have an estimated distance of 0.259 m. I will instead use the intermediate position (0.21, -0.16, 1.03) m, then continue to the final approach pose afterward. The right path should avoid the central car at x = 0.044 m; the long bar is near x = 0.146 m. Both grippers will remain open and high enough for clearance. During the left rotation near z = 1.018 m, the fingers may sweep downward and upward, but the small bar is below z = 0.77 m and appears clear. I will use 12 control steps, targeting the left arm at (-0.128, -0.170, 1.0) m with the midpoint quaternion and the right arm at (0.21, -0.16, 1.03) m with the +35° yaw orientation.

The left arm reached its target position, but after 12 control steps its orientation is still only partway to the intermediate quaternion. Its measured quaternion is [0.77, -0.049, 0.221, 0.596]. The right arm is also partway to its position target, with measured X and Y coordinates of 0.241 m and -0.112 m. The small bar is not yet visible in the left wrist view, which shows the basket, so I need to continue rotating that gripper. The long bar is at the left edge of the right wrist view; moving directly above it should bring it toward the center. I will use another 12 control steps, keeping both grippers open. The left arm will continue toward the same intermediate quaternion, [0.78364026, -0.08236403, 0.38749179, 0.4785125], at (-0.128, -0.17, 1.0) m. The right arm will move above the long bar at (0.146, -0.221, 1.0) m with the +35° yaw orientation. I estimate the right target distance as 0.144 m and expect the precheck to pass.

The right bar appears vertical in the wrist image, aligned across the gripper pads for horizontal closure. Its high-camera XY center estimate is (0.1459, -0.2207) m, matching the right end effector’s position closely, so I will hold that pose. The small left bar is partly visible at the bottom right of the left wrist image. I will finish rotating the left gripper to the -66° yaw grasp orientation, with quaternion [0.691655, -0.147016, 0.691655, 0.147016], to bring it into a centered view. The orientation change from the intermediate pose is approximately 0.935 rad. I will keep both grippers open and both positions unchanged, using 12 control steps; that may be enough to complete the left rotation.

The left gripper is still partway through its rotation, with measured quaternion [0.755, -0.122, 0.568, 0.305]. In the left wrist view, the small bar appears roughly vertical but tilted by about 15°, near pixel coordinates (420, 330). The black fingers are visible on the left and right at the bottom of the image. I will continue toward the left gripper’s final grasp orientation while holding the right arm steady. Another 12 control steps may complete the left rotation.

Both grippers appear aligned with their bars, and both link6 poses are at z = 1.0 m. The estimated wrist-image centers are approximately (337, 130) pixels for the left bar and (315, 140) pixels for the right bar. Both end effectors’ X and Y positions match the high-camera estimates. The left bar’s long axis appears vertical in its wrist view, with its center at u = 337 rather than 320 pixels, suggesting a small horizontal offset. I will inverse-project these wrist-image centers using an assumed object height of z = 0.77 m and compare them with the high-camera estimates to refine the alignment.

The stereo estimate places the left bar at z ≈ 0.7706 m, with a midpoint X coordinate of approximately -0.1205 m. The 14 mm separation between the rays suggests a discrepancy in the selected pixel centers or in calibration or observation matching. I will use the averaged X estimate rounded to -0.121 m. The right thin bar is estimated at z ≈ 0.761 m, x ≈ 0.144 m, and y ≈ -0.217 m. I will make small centering corrections, using left grasp coordinates x = -0.121 m and y = -0.170 m, and right grasp coordinates x = 0.144 m and y = -0.217 m. A link6 grasp height of z = 0.923 m seems appropriate, assuming the table is at z = 0.765 m and the thin bar center is near z = 0.765 m. I will begin descending toward left target (-0.121, -0.170, 0.923) m and right target (0.144, -0.217, 0.923) m in three-step increments, repeating as needed. Both grippers will remain open, with the left retaining its -66° yaw grasp orientation and the right retaining its +35° yaw grasp orientation.

The arms have moved only partway toward their position targets. The left link6 is at x = -0.125 m rather than the target x = -0.121 m, which is acceptable for continuing the approach. The right link6 is at x = 0.145 m and y = -0.219 m. I will continue descending for three control steps.

The left link6 height is 0.931 m, and the right is 0.935 m. Both bars remain centered and well aligned. I will take a final three control steps to descend toward the grasp height.

I will close both grippers for four control steps.

Both grippers have made contact with their bars. I will make a small test lift over three control steps, targeting a link6 height of z = 0.948 m for both arms, and check whether the bars move with the grippers.

Both bars stayed fixed relative to the wrist views during the test lift. I will raise both link6 poses to z = 1.04 m over eight control steps, keeping the grippers closed and their orientations steady.

Both bars are at transport height, and I should place them one at a time. The right arm might be able to place the long bar top-down at link6 position (0.05, 0, 1.0) m using small increments, avoiding the extra rotations. However, it may encounter the same reach problem as the left arm: the right base is at x = 0.3 m, and reaching a target at x = 0 m presents a similar difficulty. The forward-facing horizontal carry method has already worked, so I will use it for both bars. Both link6 positions are approximately at x = ±0.13 m, y = -0.2 m, and z = 1.04 m. Rotating the left gripper from its -66° yaw grasp orientation to horizontal requires about 1.87 rad, exceeding the 1.0 rad action limit, so I need the previously used normalized quaternion midpoint. For the right gripper’s +35° yaw orientation, the dot product with the horizontal quaternion is approximately 0.707 × (0.326 + 0.627) = 0.674, giving an orientation distance of about 1.66 rad. That also requires an intermediate orientation. One option for the right arm is to rotate first to the standard downward pose by about 0.61 rad, then to the intermediate tilt by 0.785 rad, and finally to horizontal by another 0.785 rad. Instead, I can use a normalized midpoint directly between its current orientation and the horizontal quaternion, followed by the horizontal target, requiring only two rotations. The left arm can likewise use its known midpoint and then turn horizontal. I estimate the left rotation sequence takes about 30 control steps because it progresses slowly, and the right may take a similar number. Both can rotate simultaneously in clear space before approaching the basket separately. I have 706 steps remaining and still need to handle two cars, so there is enough budget. I initially lean toward placing the right bar first because it may be closer to the middle. The left small bar could use the previous horizontal placement position at x = -0.084 m, and the right long bar might use the symmetric position at x = 0.084 m. Another plan is to rotate both grippers together, then place the left bar while holding the right arm out at x = 0.2 m and y = -0.16 m to avoid interference. I estimate about 50 steps for the rotations and about 30 steps for each placement, which seems acceptable. I also considered releasing the bars from a top-down pose near the front edge with a forward flick, but that does not seem safe. I will use the proven horizontal method. The left intermediate quaternion is [0.78364, -0.08236, 0.38749, 0.47851] in wxyz order, halfway toward horizontal. I will now calculate the right intermediate quaternion by normalizing the sum of the horizontal quaternion and the +35° yaw grasp quaternion.

Before rotating, I could move both arms outward into clearer space, using left position (-0.15, -0.17, 1.04) m and right position (0.21, -0.16, 1.04) m, to avoid swinging the bars near the central car. However, both bars are already held high above the table. Turning toward horizontal will make them rise and swing around their grasps, and I expect no table collision at approximately z = 1.04 m. The central car is below them near x = 0.044 m, y = -0.18 m. The right bar, near x = 0.145 m and about 0.1 m long, could swing near the car’s X position, but its height appears to provide sufficient clearance. I will rotate both grippers in place toward their calculated midpoint orientations, keeping both bars held, for 12 control steps.

Both grippers are still partway through rotating toward their intermediate forward-carry orientations. I will continue those rotations for another 12 control steps.

Both grippers have reached their intermediate orientations. I will now rotate both to the horizontal quaternion [0.70710678, 0, 0, 0.70710678], holding their positions and keeping the grippers closed. The remaining orientation changes are approximately 0.935 rad for the left arm and 0.83 rad for the right. I will use 15 control steps, which may allow both arms to reach the target orientation.

Neither gripper has reached the horizontal orientation yet. The left quaternion is [0.752, -0.031, 0.137, 0.644], with an estimated 0.4 rad of rotation remaining; the right quaternion is [0.671, -0.122, 0.065, 0.728], with about 0.35 rad remaining. I will continue rotating both toward the horizontal orientation for another 12 control steps.

Both grippers are now horizontal. In the high-camera view, the bars appear near vertical image coordinates of 70 and 90 pixels, which makes them look far behind the baskets. Does that indicate a position farther back? A link6 Y coordinate of -0.17 m plus about 0.15 m of finger extension gives an estimated object Y coordinate of -0.02 m, whereas a bar near image y = 80 pixels initially makes me wonder whether its world Y coordinate is around 0.2 m. The held height may explain the projection. With local +X pointing along world +Y, a grasp contact about 0.13 m forward of link6 gives an object Y coordinate near -0.04 m. For world y = -0.04 m and z = 1.038 m, I estimate camera depth as z_c = 0.5 × (-0.04) - 0.899 + 1.338 = 0.419 m, and camera Y as y_c = 0.0346 - 0.519 + 0.299 = -0.1854 m, giving a projected vertical coordinate of v = 112.4 pixels. A bar near v = 80 pixels could instead be around world z = 1.04 m and y = 0.02 m, which seems close. The basket center projects near v = 177 pixels at z = 0.78 m. The bars’ greater height therefore seems to explain why they appear farther back. I will place the left bar first and move the right bar away to keep the basket area clear. The right link6 is currently at x = 0.145 m and y = -0.218 m, with a horizontal gripper; I estimate its held bar at approximately (0.145, -0.08, 1.04) m, high above the right edge of the blue basket or the gap toward the red basket. The left bar is approximately at (-0.122, -0.04, 1.04) m, above the blue basket’s left edge. To bring the small left bar toward the basket center, I will target left link6 at (0, -0.08, 0.92) m, which should put the object center near (0, 0.05, 0.92) m. From the current left pose of (-0.122, -0.17, 1.038) m, I estimate the target distance as 0.186 m. I previously used x = -0.084 m to avoid reach difficulties, but the horizontal orientation and forward finger extension may now allow x = 0 m. I could hold the right arm stationary, but I will instead move it outward to (0.22, -0.20, 1.04) m, an estimated distance of 0.077 m. Both grippers will remain closed with the horizontal quaternion [0.70710678, 0, 0, 0.70710678]. I will use 10 control steps; the left arm may only move partway. If its target fails the precheck, I will adjust it.

The left arm is moving toward its target, with its current link6 position at (-0.05, -0.118, 0.967) m. In the high-camera view, the bar appears near pixel coordinates (287, 96); could it be above the back of the blue basket? I will continue toward the left target of (0, -0.08, 0.92) m for eight control steps while holding the right arm steady.

The left arm has reached its target, with the small yellow bar above the center of the blue middle basket. I will release it by opening the left gripper over three control steps while holding the right arm steady with its gripper closed.

The released small bar is visible at the bottom of the wrist view inside the blue middle basket. I will retract the left arm to clear the basket and begin positioning the right bar for placement. I am considering a horizontal left link6 target of (-0.15, -0.18, 1.02) m, retreating diagonally left and backward. I estimate the distance as 0.19 m, which is acceptable, and the path away from the blue basket appears safe. Moving the right link6 directly from (0.22, -0.20, 1.04) m to (0, -0.08, 0.92) m would require an estimated 0.279 m displacement, exceeding the 0.25 m limit. I will instead use an intermediate target of (0.10, -0.14, 0.98) m, an estimated distance of 0.155 m, while the left arm retreats. The long right bar should remain above the rim at this intermediate height of 0.98 m. Afterward, I can continue toward the center placement target at link6 z = 0.92 m. I will use 12 control steps, keeping the left gripper open and the right gripper closed.

The high-camera view now shows two bars inside the blue middle basket: the Snickers on the left and the small yellow bar in the center. The right link6 is at (0.106, -0.144, 0.983) m with the gripper horizontal, still holding the long bar. I estimate the bar’s center may be at (0.106, -0.014, 0.983) m, above the basket’s right edge. I will move the right link6 to (0, -0.08, 0.92) m while the left arm finishes retreating to (-0.15, -0.18, 1.02) m. I estimate the target distances as 0.12 m for the right arm and 0.065 m for the left. I will use 10 control steps.

The right link6 is nearly at its target: its measured position is x = 0.016 m versus 0 m, y = -0.091 m versus -0.08 m, and z = 0.928 m versus 0.92 m. The long bar is above the center of the blue middle basket. I could take three more control steps to finish reaching the target before releasing, but the bar is already safely over the interior. I will release it now at the current link6 height of 0.928 m by opening the right gripper for three control steps while holding the left arm steady.

I will use the calculated left-arm quaternion, approximately [0.4447, -0.3707, 0, 0.8154] in wxyz order, and the standard right-arm intermediate quaternion [0.653281, -0.270598, 0.270598, 0.653281]. I will move both open grippers above the remaining cars while beginning their rotations. Twelve control steps may bring them to the approach positions.

Neither arm has reached its target position. The left link6 is still at x = -0.079 m, and the right is at x = 0.071 m and z = 0.952 m. Motion is slow, apparently because of the orientation changes and movement along X, but continuing seems reasonable. I estimate the remaining position distances to the same targets as 0.123 m for the left arm and 0.095 m for the right. The remaining orientation distance to the left intermediate quaternion is perhaps about 0.6 rad, and the right has about 0.55 rad remaining to its intermediate quaternion. I will continue toward the same raised pre-grasp targets for another 12 control steps, keeping both grippers open.

Both arms are still partway to their pre-grasp targets. The right link6 is at x = 0.128 m and z = 0.981 m, close to its target of x = 0.154 m and z = 1.0 m. The left link6 is at x = -0.036 m, with a target of x = 0.044 m. I will continue toward the same targets for another 12 control steps.

The right arm has reached its intermediate pose. The left link6 is still at x = 0.004 m rather than the target of 0.044 m, although its quaternion is close to the target: the first two components are 0.465 and -0.348, compared with approximately 0.444 and -0.371. Why is the position changing so slowly? Perhaps the simultaneous orientation change is affecting it. I am considering another eight control steps toward the left target while rotating the right gripper to the standard downward orientation. The right rotation from its intermediate orientation is about 0.785 rad, so perhaps 12 steps would let it reach that orientation. The left arm would continue toward x = 0.044 m with its current intermediate quaternion target. Before proceeding, I need to check the remaining left rotation to the final grasp orientation with +90° yaw. The intermediate orientation is at interpolation fraction t = 0.45 along a 120° rotation from horizontal, placing it 54° from horizontal. That leaves 66°, or 1.152 rad, to the final orientation, exceeding the 1.0 rad command limit. I cannot command the final orientation directly from that intermediate pose. I could use another intermediate at t = 0.75, or consider passing through the standard downward orientation. Moving from t = 0.45 to t = 0.75 would require about 0.611 rad, followed by about 0.524 rad to the final orientation. A direct command to the +90° yaw orientation would be rejected for exceeding the rotation bound. I also considered a final grasp orientation with +45° yaw instead, but I am unsure of its distance from the current intermediate quaternion. I will keep the planned +90° yaw grasp and calculate the quaternion at t = 0.75 before continuing.

The left gripper’s current orientation is near the interpolation waypoint at t = 0.45, so I can now advance it to the calculated quaternion at t = 0.75. The rotation between those waypoints is approximately 0.611 rad. I will also continue moving the left link6 toward its target x coordinate of 0.044 m over the center car. The right arm will rotate to the downward orientation. I will use 12 control steps with both grippers open.

The right car is visible near pixel coordinates (310, 365) in the right wrist view, with its long axis vertical and the fingers on either side to close across its width. The downward orientation is appropriate. The left bus is at the bottom left of the left wrist view; I need to finish rotating the gripper to bring it toward the center. The left gripper has not yet reached the orientation waypoint at interpolation fraction t = 0.75: its first two wxyz quaternion components are 0.312 and -0.496, compared with the target values of approximately 0.211 and -0.577. The right gripper has also not reached the downward orientation; its first two quaternion components are 0.583 and -0.407. I will continue toward the same targets for 10 control steps, keeping both grippers open.

At the interpolation waypoint t = 0.75, the left bus’s long axis appears nearly vertical in the wrist view, with the gripper pads on its left and right and the closing direction horizontal across its short axis. Perhaps the final 90° yaw is unnecessary. I am treating the current waypoint as a yaw of 67.5°, though I am still unsure of the bus’s world-frame long-axis direction. I had estimated that it runs along world X, which would call for a closing-axis angle of 90° and a yaw of 90°. At 67.5°, the closing axis would be 22.5° off that desired direction, consistent with the bus appearing tilted about 20° from vertical in the image. The final 90° yaw should make it appear exactly vertical. I will complete the left rotation to the wxyz quaternion [0, -0.707, 0, 0.707]. The orientation change from t = 0.75 is approximately 0.524 rad. The right gripper is already nearly at its desired downward pose, so I will hold it at position (0.154, -0.108, 1.0) m with quaternion [0.5, -0.5, 0.5, 0.5]. I will use 10 control steps with both grippers open and both arms kept high.

The left bus is centered near (310, 170) pixels in its wrist view, and the right car near (315, 175) pixels; both long axes appear vertical. Their alignment looks good. The left link6 is at approximately (0.043, -0.178) m in XY, while the bus’s high-camera center at (342, 274) pixels gives an estimated XY position of (0.044, -0.179) m. The bus’s wrist-image coordinate u = 310, compared with 320, suggests its X coordinate may instead be about 0.039 m. I will tentatively use left grasp coordinates (0.041, -0.179) m. The right car’s high-camera center at (393, 241) pixels gives approximately (0.154, -0.108) m, matching the right link6 position, so I will retain those XY coordinates. I will use the previous link6 grasp height of z = 0.923 m for both arms. I briefly question how local Y maps under the left gripper’s 90° yaw, but interpret its current closing axis as world +Y, which looks appropriate. I will command the exact left quaternion [0, -0.70710678, 0, 0.70710678] in wxyz order; the measured quaternion [0.002, -0.706, -0.001, 0.709] is approximately normalized and close to it. I will begin descending with both grippers open for three control steps, using repeated short actions as needed.

The left link6’s measured X coordinate is 0.044 m rather than the target of 0.041 m, which I attribute to IK. That is acceptable for continuing the approach. I will descend for another three control steps.

The left and right link6 heights are now 0.933 m and 0.931 m. In the left wrist view, the bus is about 210 pixels wide, while the finger gap may be about 400 pixels, so the clearance looks adequate. In the right wrist view, the car is about 380 pixels wide within a gap of about 400 pixels, leaving little clearance. I will continue the descent for three control steps before closing the grippers.

Both cars are positioned for grasping. I will close both grippers for four control steps while holding their poses steady.

The left gripper opening command is 0.309, with a bus-width estimate of 0.05. The right opening command is 0.678; I tentatively estimate the car’s width at 0.025. The closure looks good, so I will make a small test lift over three control steps to check whether both cars follow their grippers.

Both cars stayed fixed relative to their wrist views during the test lift, indicating that they followed the grippers. In the high-camera view, the center bus appears slightly lifted near (333, 269) pixels, and the right car is near (393, 237) pixels. The lift check looks good. I will raise both link6 poses to z = 1.04 m over eight control steps, keeping the grippers closed and their orientations steady.

Both cars are still held, and I will rotate both grippers to horizontal for forward carry. The left gripper’s orientation distance from its +90° yaw grasp pose to the horizontal quaternion is 2.094 rad, so it needs intermediate waypoints. I can reverse the earlier rotation path: first return to t = 0.75 with quaternion [0.2113, -0.57735, 0, 0.788675], about 0.524 rad from the final grasp orientation; then move to t = 0.45, a further 0.611 rad; and finally turn horizontal, a further 0.942 rad. The right gripper’s downward-to-horizontal rotation is 1.571 rad, so it can use the standard intermediate quaternion before turning horizontal. Both arms are high and clear, so I can rotate them simultaneously. First, I will send the left gripper to t = 0.75 and the right gripper to its standard intermediate orientation. Next, the left can move to t = 0.45 while the right turns horizontal; those rotations are approximately 0.611 rad and 0.785 rad, respectively. Then I can finish turning the left gripper horizontal. I estimate this sequence will take about 12 + 15 + 12 control steps, and the remaining budget of 517 steps is sufficient. I also considered placing the cars top-down into the white left basket. From the left arm’s approximate current position at x = 0.04 m and y = -0.18 m, reaching the basket at x = -0.3 m would require about 0.36 m of travel and multiple waypoints. A top-down placement at (-0.3, 0.035, 0.95) m has already been reachable for the left arm. The right arm would need roughly 0.5 m of travel from x = 0.154 m to the white basket at x = -0.3 m and y = 0.035 m, which may be difficult. I could place the left bus top-down while rotating the right car to horizontal, then place the right car. However, the left bus’s +90° yaw orientation may also impair its reach over the white basket. Forward carry has worked, and rotating both arms together is efficient, so I will use it for both cars. For this action, I will hold both measured link6 positions, keep both grippers closed, and rotate the left gripper toward t = 0.75 and the right toward its standard intermediate orientation for 12 control steps.

The left gripper has reached the orientation waypoint at t = 0.75. The right gripper is close to its intermediate orientation but has not fully reached it. Next, I will move the left gripper to the waypoint at t = 0.45 and turn the right gripper to the horizontal quaternion [0.70710678, 0, 0, 0.70710678]. I estimate the right rotation from its current quaternion [0.605, -0.37, 0.369, 0.602] to horizontal as perhaps 0.6 rad, which seems acceptable. The left rotation to t = 0.45 is approximately 0.611 rad. I will hold both positions, keep both grippers closed, and use 15 control steps.

The right gripper has not yet reached its intermediate orientation, so the rotation from its measured pose to the horizontal target exceeds the 1.0 rad limit. I should finish the intermediate rotation first. The left target at interpolation fraction t = 0.45 is still acceptable. I will set the right target quaternion to approximately [0.653, -0.2706, 0.2706, 0.653] in wxyz order, with an estimated remaining orientation difference of about 0.34 rad. I will hold both positions and keep both grippers closed while the left arm advances to t = 0.45 and the right finishes its intermediate rotation over 12 control steps.

The left gripper has reached the orientation waypoint at t = 0.45, and the right gripper has reached its intermediate orientation. I will now rotate both to the horizontal quaternion [0.70710678, 0, 0, 0.70710678] for forward carry. I estimate the remaining orientation distances as 0.942 rad for the left arm and 0.785 rad for the right, both within the 1.0 rad limit. I will use 15 control steps, which may let the left gripper reach the target orientation.

Neither gripper has reached the horizontal forward-carry orientation yet. The left rotation is progressing slowly, with about 0.5 rad remaining, while the right has about 0.3 rad remaining. I will continue rotating both grippers toward that orientation for another 15 control steps.

The right gripper has reached the horizontal forward-carry orientation, but the left has not. Its measured wxyz quaternion is [0.641, -0.1, 0.012, 0.761], with approximately 0.27 rad remaining to the target orientation. I initially considered 10 more control steps for the left rotation. Meanwhile, I can park the right arm outward at (0.26, -0.16, 1.04) m, maintaining its horizontal orientation. From its measured position of (0.155, -0.108, 1.036) m, the target distance is approximately 0.117 m. This will keep the held right car away from the left car’s placement path. I will use 12 control steps to finish the left rotation and park the right arm, keeping both grippers closed.

Both grippers are now horizontal. I will place the left bus in the white basket first. The left link6 is at (0.047, -0.183, 1.029) m, and I estimate the bus center at x = 0.047 m, y = -0.05 m, z = 1.03 m. I estimate the white basket center at x = -0.30 m and y = 0.06 m. A link6 target at y = -0.08 m would put the object near y = 0.05 m, assuming a grasp offset of +0.13 m along Y. I initially considered a placement height of z = 0.94 m, with the object center at that height and the rim at z = 0.84 m, giving an estimated drop of 0.16 m. The bus is larger, about 0.04 m tall, so its bottom would be near z = 0.92 m, with a drop of about 0.13 m to z = 0.79 m at the floor. I could lower link6 to z = 0.90 m as with the bars, leaving 0.06 m above the rim and putting the bus bottom near z = 0.88 m, just above it. I will instead use z = 0.92 m for placement and release, as I did for the Snickers, with the bus bottom perhaps near z = 0.90 m. Could the car hang lower relative to link6 in a horizontal grasp? In the initial top-down grasp, its center was about 0.14 m below link6. If it stays at the contact point 0.14 m along local +X during rotation, its center should move approximately 0.14 m along world +Y and remain at link6’s height, although gravity might make it hang down. The right car, held with link6 at (0.26, -0.16, 1.04) m, appears yellow near pixel (490, 100) in the high-camera view, consistent with z = 1.04 m. I will therefore treat the object center height as approximately the link6 height. The direct left-arm move toward (-0.30, -0.08, 0.92) m has displacement components (-0.347, +0.103, -0.109) m and an estimated total distance of 0.378 m, exceeding the 0.25 m limit. I will first use the intermediate pose (-0.15, -0.14, 0.99) m, an estimated distance of 0.204 m, then continue to (-0.30, -0.08, 0.92) m, an estimated distance of 0.17 m. The path may pass over the blue basket, but the bus should remain high enough to avoid contact: at the intermediate height of z = 0.99 m, I estimate its bottom at z = 0.97 m, above the rim at z = 0.84 m. I will take 12 control steps toward the left intermediate pose while holding the right arm parked, with both grippers closed.

The left arm is near its intermediate pose, and the wrist view shows the bus near the white basket on the left. I will move the left link6 to (-0.30, -0.08, 0.92) m, keeping the horizontal orientation q0 = [0.70710678, 0, 0, 0.70710678]. I estimate the target distance as about 0.197 m, which seems within the 0.25 m limit. I will use 12 control steps while keeping the other car parked and both grippers closed.

The left link6 is near its target. In the high-camera view, the bus appears at pixel (174, 121) above the white basket, and the first car is visible inside at pixel (185, 185). Is the bus held above the back of the basket? The left link6 is at x = -0.284 m and y = -0.088 m, and I estimate the bus center may be at x = -0.284 m and y = +0.05 m, which places it over the interior. I will release it at the current pose by opening the left gripper for three control steps, while holding the right arm steady with its car still grasped.

The bus is falling inside the white left basket, with its teal roof visible at the bottom of the wrist view. I will retract the left arm and move the last car, held by the right arm, toward the same basket. The right link6 is parked at (0.26, -0.16, 1.04) m with the gripper horizontal. My proposed placement target is (-0.30, -0.08, 0.94) m, an estimated distance of 0.565 m, so I need several waypoints. First, I can move the right arm to (0.05, -0.14, 1.0) m, an estimated distance of 0.215 m, while the left arm retreats to (-0.30, -0.20, 1.02) m, an estimated distance of 0.144 m. Then I can move the right arm to (-0.15, -0.12, 0.96) m, an estimated distance of 0.204 m, while perhaps holding the left arm steady, before continuing to the final target. The arms could collide if the left remains near the white basket as the right approaches. I may need to withdraw the left farther forward to y = -0.25 m and x = -0.35 m while the right moves above it. For the immediate action, the left link6 is at (-0.284, -0.088, 0.927) m with its horizontal gripper open. Its fingers extend into the white basket to approximately y = +0.05 m at z = 0.927 m, above the rim. Moving backward to y = -0.20 m and upward to z = 1.02 m, with x = -0.30 m, appears safe. The right arm's first waypoint moves its link6 from x = 0.26 to 0.05 m, y = -0.16 to -0.14 m, and z = 1.04 to 1.0 m. This path may pass over the blue basket, but I estimate the held car's center will be near y = 0 m and z = 1.0 m, above the baskets with clearance. The arms are currently separated at x = -0.284 m and x = 0.26 m. I will execute 12 control steps, keeping the left gripper open and the right gripper closed.

The high-camera view now clearly shows two cars in the white basket: the original yellow-and-black car on the left and the yellow-and-teal bus on the right. The right gripper still holds the last car, and the left arm has retracted enough to continue. I will move the right link6 from (0.087, -0.146, 1.005) m to the intermediate target (-0.12, -0.12, 0.97) m. I estimate the target distance as 0.211 m, which is within the position bound. The left arm will make the small remaining movement toward (-0.3, -0.2, 1.02) m. I will use 12 control steps.

The right link6 is at x = -0.063 m, close to its previous waypoint. The left arm is at x = -0.3 m and y = -0.2 m, with its horizontal fingers extending along +Y to approximately y = -0.05 m near the white basket’s front. At z = 1.02 m, they appear clear of the basket. I considered moving the right link6 directly to the white-basket placement target of (-0.30, -0.08, 0.94) m. I initially estimate that distance as 0.243 m, or approximately 0.245 m using displacement components (-0.237, +0.049, -0.035) m, barely within the 0.25 m limit. The precheck may fail because of the reach across to the left basket, so I will first use the closer intermediate target (-0.20, -0.10, 0.95) m, an estimated distance of 0.139 m, before the final placement motion. I will hold the left arm stationary with its gripper open, keep the right car grasped, and use 12 control steps.

The right link6 is at x = -0.151 m and has not reached its previous target of x = -0.2 m after 12 control steps, but it has made enough progress to continue. I should account for possible contact with the left arm. I estimate the left fingers extend to y = -0.042 m at x = -0.3 m and z = 1.02 m. The right car is currently near x = -0.151 m, y = +0.02 m, and z = 0.952 m, so I do not expect a collision at the current position. At the final right link6 target of (-0.30, -0.08, 0.94) m, it would share the left arm’s x coordinate. The left arm body is at (-0.3, -0.2, 1.02) m, giving an estimated separation of about 0.15 m between the arms. The left fingers extend to approximately y = -0.04 m at z = 1.02 m, leaving about 0.08 m of vertical separation from the right gripper. I estimate the held car would be near y = +0.05 m and z = 0.94 m. Although this does not suggest direct contact, the clearance may be too close. To provide more clearance, I will move the empty left gripper farther back toward its initial area, targeting (-0.3, -0.32, 1.04) m with a horizontal orientation. From its current position of (-0.3, -0.2, 1.02) m, I estimate this backward motion is 0.122 m and appears clear. The right arm will simultaneously move from (-0.151, -0.113, 0.952) m to (-0.30, -0.08, 0.94) m, an estimated distance of 0.152 m, to position the car over the basket interior. I will use the horizontal quaternion [0.70710678, 0, 0, 0.70710678] for both arms, keep the left gripper open and the right gripper closed, and execute 12 control steps.

The right arm cannot reach the horizontal-gripper target at x = -0.3 m, y = -0.08 m, z = 0.94 m from its side. I can instead aim for the right portion of the white basket; the task does not require placement at its center. I tentatively estimate the basket’s X span as -0.44 to -0.16 m, its center at -0.30 m, and its inner right edge at -0.17 m, though I also wondered whether the right edge was near -0.15 m. A link6 X coordinate of -0.20 m would put the car’s center near x = -0.20 m, safely inside that estimated edge. A target at (-0.20, -0.08, 0.94) m may be reachable. From the current right link6 X coordinate of -0.151 m, the proposed changes are -0.049 m in X, +0.033 m in Y, and -0.012 m in Z. That is a small motion, so I expect the precheck may pass. However, I need to consider the cars already in the basket. I initially estimated the original car at x = -0.33 m and the bus at x = -0.28 m. In the high-camera view, the bus appears near pixel (224, 182), and the original car near (184, 181). Assuming z = 0.79 m, I first wondered whether the bus was at x = -0.224 m. Using x = (u - 320) / 288 × z_c, with camera depth z_c around 0.63 m, instead puts it near x = -0.21 m; the original car would be near x = -0.30 m. Thus, placing the last car at x = -0.20 m could make it land on the bus. Could it rest stably on another car? The task only requires containment, so that may be acceptable, but I would prefer free space. The original car and bus seem to occupy the left-front and right-front portions, with rear space near image y = 150 pixels. I could aim for an object center at x = -0.22 m, y = +0.10 m, using link6 y = -0.03 m and an estimated +0.13 m forward grasp offset. A link6 target at x = -0.22 m, y = -0.03 m, z = 0.94 m might be reachable and place the car behind the bus or near the back edge. Releasing from above at z = 0.94 m could let it settle into that back-right area without pressing against the existing cars. I tentatively estimate the basket interior as x ∈ [-0.42, -0.18] m and y ∈ [-0.02, 0.14] m, centered near y = 0.06 m. The bus may be around (-0.22, 0.03) m in XY, and the original car around (-0.32, 0.03) m, leaving space near y = 0.11 m. Another possibility is a link6 target at (-0.22, -0.02, 0.96) m, putting the object near y = +0.12 m. From the current pose (-0.151, -0.113, 0.952) m, I estimate that target distance as 0.117 m and think it is likely reachable. I also considered targets at (-0.20, -0.03, 0.95) m or (-0.20, -0.02, 0.95) m. At link6 y = -0.02 m, though, the object center would be near y = +0.11 m, close to the back wall. The car has rotated sideways during horizontal carry; its long axis appears horizontal in the wrist image, but I am unsure of its world direction. Its length may be about 0.08 m, and it might occupy 0.08 m along Y, so a center at y = 0.11 m could bring it against the back wall at y = 0.14 m. A center near y = 0.07 m seems better, using link6 y = -0.06 m. I will therefore target the right link6 at (-0.20, -0.06, 0.95) m, an estimated distance of 0.077 m from its current pose. This should put the car inside the right half and slightly behind the bus, with the right fingers extending into the basket. I will simultaneously retract the empty left arm toward its previously planned backward target and use 10 control steps.

Even the right link6 target at (-0.20, -0.06, 0.95) m failed the precheck with about 20 mm of position error. The right arm’s reach across to the left is limited. A closer target at (-0.17, -0.08, 0.95) m might be reachable, but placing the car center at x = -0.17 m could put it on the white basket’s right wall. I also considered x = -0.17 m and y = -0.06 m, provided the car would be inside and the gripper opening would not hit the wall. The wall may be near x = -0.15 m. My tentative reading of the high-camera image places the outer right edge at horizontal pixel 256, perhaps corresponding to x = -0.15 m at a rim height of z = 0.84 m, and the inner edge at pixel 239, perhaps corresponding to x = -0.19 m. If those estimates are correct, a car center at x = -0.17 m would be outside the interior. I could move the white basket closer to the right arm or hand the car to the free left arm, which is at x = -0.3 m and could receive it in a central area before placing it. A handoff would require careful alignment and collision avoidance. Another option is for the right arm to release the car onto the table near the left arm, allowing the left arm to regrasp and place it. There are 388 control steps remaining, so these recovery options are possible, but I would prefer to avoid disrupting the scene. Perhaps a top-down orientation would improve the right arm’s final reach compared with horizontal carry. The right arm previously placed a pepper top-down at x = +0.31 m. Could it reach across to x = -0.2 m at a lower height or a different Y coordinate? The horizontal carry orientation may constrain that reach more than the downward orientation. I could rotate the right gripper downward at a proposed link6 pose of (-0.151, -0.113, 1.0) m, then try (-0.25, 0.03, 1.0) m. However, that would require link6 itself to be over the basket, spanning about 0.55 m in X from the right base at x = +0.3 m to x = -0.25 m. That is probably too far, so horizontal carry still seems preferable. I could also release the car from the basket’s right edge, with its center near x = -0.18 m and y = +0.08 m, if enough of it were over the interior to fall inside. The target (-0.17, -0.08, 0.95) m might pass the precheck. From the failed target at (-0.20, -0.06, 0.95) m and its approximately 20 mm best position error, I tentatively infer that the best iterate may have fallen short along the target direction. Starting from the measured link6 pose of (-0.151, -0.113, 0.952) m, that might put a reachable target around (-0.175, -0.076, 0.95) m. This makes (-0.17, -0.08, 0.95) m seem plausible, but it does not resolve the rim risk. If the inner wall is near x = -0.17 m, the car could land on it. Could rotating the car by 90° make it fall inward? Releasing over the edge could make it tumble either inside or outside, which is uncertain. Nudging the basket is another possibility, but it is not ideal. Moving the white basket slightly right would help the right arm reach it, although that could bring it into the blue basket. I briefly considered using the left arm to push or pull the basket left, but moving it right is what would help this reach problem. Pulling it forward, toward negative Y, may be better. The target at x = -0.20 m and y = -0.06 m failed; a more negative Y coordinate should bring the placement closer to the right arm. If the basket center moved from y = 0.06 m to y = -0.05 m, perhaps the right link6 could place at x = -0.20 m and y = -0.13 m, with the object near y = 0 m. I am not certain of that relationship, but moving the basket forward could instead allow a link6 target near y = -0.16 m, which seems easier to reach. The left arm is free at (-0.3, -0.2, 1.02) m with a horizontal gripper. It could grasp the white basket’s front wall and pull it forward by about 0.10 m, or perhaps about 0.08 m, before the right placement. The basket contains two cars, which might shift during the movement, but that seems manageable. The skill permits moving a container that is too far away for precise placement. Moving this basket should fit the sorting task as long as the objects end up in the left basket; I would not need to return the basket afterward. However, the right arm is holding the car near the white and blue baskets at link6 position (-0.151, -0.113, 0.952) m. Moving the basket there could collide with the right car or gripper. I would first need to park the right arm farther back, perhaps at x = 0 m or 0.1 m, y = -0.18 m, and z = 1.04 m, then manipulate the basket with the left arm. That would take several actions but remains feasible. Alternatively, the right arm could temporarily release the car onto clear table space near x = -0.05 m and y = -0.20 m, then let the left arm pick it up and place it, since the left arm can reach the white basket’s center. How should the right arm return it to the table from horizontal carry? A link6 height of z = 0.80 m would put the object center near z = 0.80 m, above the estimated table height of z = 0.765 m and close to an estimated car-center height of z = 0.79 m. For a clear table location at x = 0 m and y = -0.25 m, I could use link6 y = -0.38 m to put the object near y = -0.25 m, with link6 z = 0.80 m. The initial link6 pose was near y = -0.352 m and z = 0.922 m; lowering horizontally to z = 0.80 m may be reachable, with the fingertips at the table object. I could then release and have the left arm regrasp top-down. The car might be released standing, but since it is currently held sideways it could instead rest on its side. That adds work and orientation uncertainty, although only its final containment matters and the left arm may still be able to grasp it. A direct handoff is another option. With the left arm retracted to the proposed pose (-0.3, -0.32, 1.04) m and the right-held car near (-0.151, -0.113, 0.952) m, I could bring the left gripper in from the left, close it, and open the right gripper. That requires precise alignment and enough clearance between the grippers. Perhaps the right arm could first move the car to a handoff location where the left gripper could approach top-down and grasp its roof while the right still holds it from the side. The right could then open and the left could lift. There is enough budget, but this would be a delicate transfer. Before resorting to those alternatives, I want to determine whether the closer right target at (-0.17, -0.08, 0.95) m would leave the car safely over the basket. It might be sufficient if the actual right edge is near x = -0.13 m rather than -0.17 m. I will first refine the basket geometry using the high-camera calibration and candidate corner pixels from obs_000700, where I believe the relevant rim is unoccluded. I tentatively identify the outer right-front corner at pixel (256, 204), perhaps at z = 0.78 m, and the inner right-front corner at (240, 191), also perhaps at z = 0.78 m. I can inverse-project these using assumed heights of z = 0.78 m and z = 0.84 m for the rim. My tentative reading of the initial white basket polygon has back-left corner (129, 144), back-right corner (232, 140), front-right corner (257, 204), and front-left corner (135, 212). Perspective changes their horizontal image coordinates with depth. I estimate the back-right corner at (232, 140) might correspond to x = -0.19 m and y = 0.20 m, while the front-right corner at (257, 204) might correspond to x = -0.15 m and y = 0 m. Is the right wall actually a plane near x = -0.15 m, with the discrepancy coming from the assumed heights? In obs_000700, another candidate for the back-right top corner is (231, 140), and the front-right top may be (255, 188). I will inverse-project the selected corner and center pixels at both z = 0.84 m and z = 0.78 m before choosing the release point.

The calculation found no root below a height of 1.1 m. Perhaps the baskets are not aligned with the environment axes. The high camera’s horizontal axis corresponds to world X, but a basket could have a small yaw rotation, causing its right wall’s X coordinate to vary with Y. It might be angled by about 10°. Moving the basket may be easier, but I can first try a release point near its edge. A right link6 target of (-0.17, -0.08, 0.95) m would likely pass the precheck, while the left arm retracts. If the car lands on the wall, I could recover it with the left arm after withdrawing the right arm. Another candidate is x = -0.18 m and y = -0.10 m, which is less far forward and may pass the precheck. With link6 at z = 0.95 m, I estimate the car center would be at x = -0.18 m and y = +0.03 m. The existing bus is approximately at x = -0.23 m and y = 0.055 m, so there could be overlap, though the car might rest on the bus and remain contained. This release point is near the right wall and may be far enough inside, but an estimated car width of 0.06 m along X would span x = -0.21 to -0.15 m. With the front portion of the right wall around x = -0.16 m, the car might straddle it and bounce inward. A center at x = -0.20 m would be better. The precheck failed at y = -0.06 m, but a closer Y coordinate of -0.10 m might allow that X coordinate. From the measured right link6 pose of (-0.151, -0.113, 0.952) m, targeting x = -0.20 m and y = -0.10 m changes X by -0.049 m and Y by +0.013 m. That seems easier than the failed forward target, and I expect the precheck may pass. It would still put the object center near y = +0.03 m, alongside the existing cars, so the released car could fall partly onto the bus or wall. Using link6 y = -0.13 m seems better: I estimate the object center would then be at y = 0 m in the front area, while the existing cars are centered near y = +0.05 m. The right link6 target (-0.20, -0.13, 0.95) m is close and seems reachable. It should put the car center at approximately (-0.20, 0) m inside the white basket’s front-right portion. If the right wall is near x = -0.15 m, the estimated 0.06 m car width would extend rightward to x = -0.17 m and remain inside. The bus at y = 0.055 m would be behind it, avoiding overlap. The basket’s front wall may be around y = -0.03 m. I am still unsure of the car’s long-axis direction in world coordinates. Its side appears long and horizontal in the right wrist view; the initial grasp closed along X, but the car rotated during the subsequent turns. Its extent along world X might instead be about 0.1 m. I expect it can fit in the front-right area, approximately x = -0.25 to -0.15 m and y = -0.02 to +0.06 m. I will target the right link6 at (-0.20, -0.13, 0.95) m while retracting the empty left arm, using 10 control steps.

The right arm has reached its target. In the high-camera view, the held car appears above the white basket near pixel (215, 140). I initially wonder whether the left wrist view places it above the back of the basket. That view shows the original car and bus inside, with the held yellow car at the upper right, perhaps behind the basket’s front edge. The right wrist view shows the car still held, with the white basket below. The right link6 is at x = -0.2 m and y = -0.13 m. I estimate the held car’s center at y = +0.005 m and z = 0.949 m, placing it over the front-right portion. It may land on the right wall or the bus, but it will likely remain inside. I will open the right gripper for three control steps while holding the left arm at its current pose.

In the left wrist view, the released car appears to be on top of the bus or the basket’s right wall, though I am unsure. The right wrist view shows the yellow car at the bottom with its wheels up; perhaps it fell into the white basket and is resting on its side. Only glimpses of yellow are visible in the high-camera view. I should retract the right gripper to clear the view and verify all the objects. The right gripper is open and horizontal, with link6 at (-0.2, -0.13, 0.949) m and its fingers extending into the basket. I will withdraw it backward and upward toward (0, -0.25, 1.04) m. I estimate the target distance as about 0.235 m, within the 0.25 m limit, and the path back and to the right appears safe. For the left arm, I am considering a clearance pose near (-0.3, -0.32, 1.04) m, a small move from its measured position of (-0.302, -0.278, 1.031) m. I will keep both grippers open, retain the right gripper’s horizontal orientation, and use 12 control steps.

The rejected right-arm retraction has an estimated distance of sqrt(0.2² + 0.12² + 0.091²) = 0.2503 m, just above the 0.25 m motion limit. I will use the closer right link6 target of (0, -0.24, 1.03) m instead, whose estimated distance is sqrt(0.04 + 0.0121 + 0.0066) = 0.242 m. I will retain the left target of (-0.302, -0.32, 1.04) m and execute 12 control steps.

The left wrist view clearly shows three cars contained in the white left basket: the original car on the left, the last yellow car in the middle, apparently lying on its side or on the bus, and the bus on the right. The right wrist view appears to show all three bars in the blue middle basket, though I am less certain of the count in that view. The peppers are visible in the red right basket from the high camera. I believe the manipulation goal is complete, but both arms still need to return. Before using robot_reset, all objects must be released and both arms must be in clear, open space. Both grippers are open. The left link6 is at (-0.302, -0.32, 1.04) m with the horizontal orientation q0, near its initial position of approximately (-0.3, -0.352, 0.922) m, and appears clear. The right link6 is at (-0.148, -0.158, 0.976) m with its gripper horizontal, still close to the white and blue baskets. I need to move it away before resetting. There are 363 control steps remaining, which is enough. I could move the right arm toward its initial neighborhood, perhaps to (0.1, -0.30, 1.04) m or (0.3, -0.32, 1.04) m, and then reset. A target at (0.1, -0.28, 1.04) m would have an estimated distance of sqrt(0.248² + 0.122² + 0.064²) = 0.283 m from the current pose, exceeding the 0.25 m bound. An intermediate target at (0.03, -0.25, 1.03) m would be about 0.216 m away. From there, the target at (0.3, -0.32, 1.04) m would still be about 0.278 m away, so I could use another waypoint at (0.2, -0.30, 1.04) m, about 0.179 m away. Alternatively, I could reset from the clear pose (0, -0.25, 1.04) m. I briefly question whether the return path from there might pass near a basket, but I judge that pose to provide enough clearance. I initially estimate its distance from the current right pose as 0.245 m; the displacement components are actually (+0.148, -0.092, +0.064) m, giving about 0.185 m, within the bound. The earlier move from (-0.2, -0.13) m to (0, -0.25) m had a total target distance of 0.2503 m, but the right arm is now closer. I will hold the left arm at its current pose and move the open right gripper to (0, -0.25, 1.04) m for 12 control steps, then inspect the measured state and clearance. Once both arms are clear, I can allow perhaps 50 steps for robot_reset, since the right arm will still be far from its initial position of approximately (0.3, -0.352, 0.922) m while the left is close. Fifty steps is the per-call maximum; if the arms have not returned and the episode remains active, I can inspect and call again. Native success will likely become true only after the reset, and I must not report success until native_success is true.

The right arm is withdrawing, with its link6 now at (-0.062, -0.212, 1.015) m. The gripper still appears to be above the gap between the white and blue baskets; I am unsure whether it has enough clearance yet. I will continue toward the target at (0, -0.25, 1.04) m for eight control steps while holding the left arm steady.

Both grippers appear clear of the containers now. The right gripper is horizontal at (0, -0.25, 1.04) m, with its fingers extending along +Y to approximately y = -0.10 m. At z = 1.04 m, they are above the estimated blue basket rim height of 0.84 m. The left gripper is at (-0.302, -0.32, 1.04) m, with its fingers extending to approximately y = -0.17 m, also clear. I can now call robot_reset. The left arm is near its initial position, with initial y = -0.352 m and z = 0.922 m, and already has the initial orientation q0. Its joints may be close to their initial configurations, though not exact. The right arm’s initial position was (0.3, -0.352, 0.922) m; its current position is (0, -0.25, 1.04) m, an estimated distance of 0.33 m away. With an estimated motion of 0.01 m per control step, plus the rotation needed during return, the maximum allowance of 50 steps seems sufficient. I will use 50 steps.

The episode reports native_success: true, so I can report success. Three cars are in the left basket, three chocolate bars are in the middle basket, and three peppers are in the right basket. The reset was requested and ended with native success, although robot_reset reports reached_home: false because the episode terminated early. Should I mention that distinction? The instruction allows reporting success when native_success is true, so I will briefly report the supplied successful outcome and say that the reset ended with native_success: true. I will take no further robot actions.