[renmengye]

Part 3 of #487: protocol friction as a release metric.

• trajectory.summarize(events) counts syscall.decision events, refusals by verb, and the distinct backend/model pairs from session.start. There are no new events and no format change.
• outerloop trajectory <run-id> ends with one line such as refusals: 3 of 4 decisions (submit 2, message 1); author: claude/model-x. It prints nothing extra for a run with no trajectory, and the --json output shapes are unchanged.
• RELEASING.md: pre-release canary runs report refusals per run by author model; a release whose refusals per run rise explains why in the release PR.
• The agent-text inventory now includes the operator message note from outerloop message, which the part-1 review flagged as missing.

Gate: ruff check, ruff format --check, mypy, pytest (3192 passed, 7 skipped).

Built by codex (GPT); reviewed by Claude.

[github-actions]

Round 1 — reviewed head cf4d3215 — reviewer hermes/gpt-5.6-terra.

terra
Advisory findings from outerloop — the code owner decides. Reply to disagree; the outerloop:no-review label opts this PR out.

Verdict: 1 blocking, 0 advisory.

1 finding attached to the lines below.

Malformed trajectory event data can crash the new summary.

[github-actions]

Round 2 (re-run on the same head) — reviewed head cf4d3215 — reviewer summarizer:hermes/gpt-5.6-terra over coverage+credentials+deployment+general+lifecycle+prose.

terra
Advisory findings from outerloop — the code owner decides. Reply to disagree; the outerloop:no-review label opts this PR out.

Verdict: 2 blocking, 1 advisory.

3 findings attached to the lines below.

Verdict: request changes. Blocking: trajectory summary includes panel judge sessions in its author metric, and malformed non-object event data can crash the command. Suggestion: clarify the changelog sentence with the supplied rewrite. Rejected: none; coverage, credentials, and general were merged as the same malformed-data defect, and deployment and lifecycle were merged as the same panel-author defect.

[github-actions]

Round 3 — reviewed head 76598934 — reviewer hermes/gpt-5.6-terra.

terra
Advisory findings from outerloop — the code owner decides. Reply to disagree; the outerloop:no-review label opts this PR out.

Verdict: no defects found.

[github-actions]

Round 4 — reviewed head fa973384 — reviewer hermes/gpt-5.6-terra.

terra
Advisory findings from outerloop — the code owner decides. Reply to disagree; the outerloop:no-review label opts this PR out.

Verdict: no defects found.