[bb-slop-cop]

🚨 SLOP COP 🚨 · new-issue-autopilot

Human comments

What was wrong

The browser automation CLI recognized only one stopped/expired error phrasing. Other errors emitted by its host and process implementation fell through to command_failed, omitting session recovery guidance. Cancellation and timeout close the session, so those failures also need the reopen hint.

Report: https://get-bb.github.io/reports/issues/7349.html — REPRODUCED, high confidence, repeated by the same investigator in two clean checkouts at 7c1353d80729983b86ea1555d18b42407f320406.

What changed

• Recognize stopped/expired session variants and browser-work cancellation at the existing CLI error boundary.
• Preserve the original message and return session_unavailable with reopen guidance; cancellation/timeout additionally suggests the existing --timeout option and 120-second ceiling.
• Extend the existing JSON/text CLI regression table and document recovery in the plugin skill.
• Three files, 34 additions + 11 deletions = 45 changed text lines, measured with git diff --numstat origin/main.
• No dependencies, lockfiles, generated files, storage changes, public protocol/schema changes, or security-boundary changes.

How you verified

• Added the regression before changing production code. In each of two clean trusted checkouts, pnpm exec turbo run test --filter=bb-plugin-browser-automation -- cli.test.ts failed in the same three cases: command_failed instead of session_unavailable, without a recovery hint; 11 other cases passed.
• After the fix, pnpm exec turbo run test lint typecheck --filter=bb-plugin-browser-automation passed: 106 tests across 8 files, plus lint and typecheck.
• pnpm exec turbo run build --filter=@get-bb/plugin-sdk and pnpm exec turbo run build --filter=bb-plugin-browser-automation passed.
• Formatting and git diff --check passed; all changed files are text.
• The reproduction injects trusted producer errors at the CLI execution boundary; it does not launch a browser or induce a live worker restart.
• Initial workspace-wide build encountered missing SDK artifacts in an unrelated plugin before the explicit SDK build; the scoped build passed after preparing those artifacts.

Fixes #7349

AGENT GENERATED