wckwan/WebShop-Olmo3-7B-Adaptive-Pivot-Fenced-eval-newparser

WebShop OLMo-3-7B-Instruct pivot FENCED: held-out evaluation, NEW action parser

Held-out WebShop evaluation rows for wckwan/WebShop-Olmo3-7B-Adaptive-Pivot-Fenced, steps gs140 through gs200.

NOT comparable to the gs20–gs120 rows in wckwan/WebShop-Olmo3-7B-Adaptive-Pivot-Fenced-eval. Those ran on the frozen OLD-parser surface 7173787ad6e171c6, which executes the first <action> pair anywhere in the response, including actions rehearsed and rejected inside the reasoning. These rows use the NEW parser, and config_fingerprint does not distinguish the two. The old parser corrupts fenced decisions far more than terse ones, and increasingly with training step, so splicing the two series would create a step change that is pure parser.

Action-parser surface

parser commit	451b4969 (projections: read the action after the final </think>)
verl-agent tree	8abb4e2d
agent_system/environments/env_package/webshop/projection.py sha256 prefix	4d6ccb1d8982dec3
rule	the action is read from the <action> pair after the FINAL </think>

Every result.json carries the same statement as eval_surface_note. The commit, parser-file hash and rule above are the canonical identification of this surface; no opaque surface id is assigned.

Layout

global_step_N/result.json         # metrics, diagnostics, goal set, config, fingerprint, runtime, eval_surface_note
global_step_N/trajectories.jsonl  # per-episode trajectories
global_step_N/eval_seed0.log      # eval log
MANIFEST.sha256                   # sha256sum -c compatible

Protocol

standalone_eval preset webshop_olmo3 (Instruct): 500 goals in 4 shards of 125 (goal_indices sha256 3c6e0c423c7234e8…, shards 0bc99e5066361073…), 15 steps, prompt/response 4096/2048, history 2, temperature 0.4, top_p 1.0, top_k -1, history_action_char_cap None. Runtime: vLLM 0.11.0, data parallel 2 (TP=1), engine seed 0. Every row passes scripts/check_result_webshop.py.

	fingerprint
native	6448dfad6bbdf8435a3bbd73b9822b19de99b45419d8921622329869f1065c38
legacy-equivalent (drop the None history_action_char_cap key, commit a668c6b6)	060ad196f1509810037101e0b3d3c3bed1cac46ee0ac26a4e9190634367a8070

A matching fingerprint here does not imply a matching parser surface; check eval_surface_note / eval_contrast_note.