presenter_offgrid_a — handover_place_partners@v1

Set. handover_place_partners@v1 (task handover_place@v1) · Stratum. scripted · Split. public · Role. presenter

Identity. partner_id 7bb5130fbc52906e · parameter digest d4b9324e9d4f185ee33f3539bd37ccf83bf0ae8a516e16a9432437c4f19d16a0 · weights_uri member://handover_presenter/d4b9324e9d4f185ee33f3539bd37ccf83bf0ae8a516e16a9432437c4f19d16a0

What this partner does

The frozen scripted presenter (ADR-026; Gate-0 rig): it hands the part into the shared workspace and lets go, binding the ego only through the presented initial condition. The grasp-pose error distribution (grasp_pose_bias_deg/grasp_pose_sigma_deg) is the coupling channel; lateral offset is success-side by construction and timing skew rides the takt budget.

Construction provenance

Built from registry class handover_presenter (PartnerSpec(seed=0, checkpoint_step=None)). Public member: the exact values below were drawn from the committed box under the maintainer-held derivation seed and are committed next to their digest.

parameter	committed box	value
grasp_pose_bias_deg	[15, 45]	15.6982
grasp_pose_sigma_deg	[8, 12]	11.661
lateral_offset_x_m	[0, 0]	0.0
lateral_offset_y_m	[0, 0]	0.0
lateral_sigma_m	[0.0001, 0.0003]	0.0002
timing_skew_bias_s	[0.1, 0.3]	0.2855
timing_skew_sigma_s	[0.05, 0.15]	0.1242

Behavioural fingerprint

Committed probe suite: seeds [7000, 7001, 7002, 7003] x 5 episodes against the task's reference ego (archive: spikes/results/partner-fingerprints/handover_place_partners-v1/presenter_offgrid_a/, an ADR-028 v3 bundle). Summary statistics of the member's action distribution and the dyad's stress channel — enough to tell members apart without policy access (ADR-018/I3).

statistic	value
action_abs_mean	3.531
action_abs_p90	9.764
action_std	5.961
n_episodes	20
stress_max	34.42
stress_mean	2.845
stress_p50	0
stress_p90	7.199
success_rate	1

Competence floor. floor probe free_regrasp — success 1 vs committed floor 0.9 → PASS