Create or Update a Pull Request

Session reporting retains the format from v1 PR #13918. Main also accepts reports posted by repository maintainers, including when they take over an existing PR.

Before publication, follow Validation and Publication. For an open PR, first follow the PR follow-up contract; route valid code repairs to nemoclaw-contributor-implement-issue. These references own trusted-base validation, source-repository selection, guarded writes, verified commits, DCO, draft handling, and review follow-up. Follow Writing and review for PR text.

When changing live E2E evidence, require the implementation handoff to apply Define the Live Contract, or Move or Remove Evidence when pruning or relocating assertions. Route incomplete handoffs back to implementation.

1. Write the description from the canonical base's .github/PULL_REQUEST_TEMPLATE.md; keep the report out of it. Prepare a separate comment from .github/SESSION_REPORT_TEMPLATE.md using the evidence rules. Keep <details> without open.

2. Validate the comment:

   rustc --edition=2024 tools/ci/pr-session-report.rs -o /tmp/pr-session-report
   /tmp/pr-session-report report-comment.md