presenter_offgrid_b — handover_place_partners@v1

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

Identity. partner_id 7c555ca368e36f86 · parameter digest 493a16d55d28b33593482461eecb2dbeb77d5ff505ba4d3c6cb28dbdecfbb77d · weights_uri member://handover_presenter/493a16d55d28b33593482461eecb2dbeb77d5ff505ba4d3c6cb28dbdecfbb77d

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]	18.3353
grasp_pose_sigma_deg	[8, 12]	11.9689
lateral_offset_x_m	[0, 0]	0.0
lateral_offset_y_m	[0, 0]	0.0
lateral_sigma_m	[0.0001, 0.0003]	0.0003
timing_skew_bias_s	[0.1, 0.3]	0.1793
timing_skew_sigma_s	[0.05, 0.15]	0.1134

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_b/, 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	3.986
action_abs_p90	11.08
action_std	6.803
n_episodes	20
stress_max	56.95
stress_mean	7.259
stress_p50	0
stress_p90	29.01
success_rate	0.95

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