Best possible solution:

Land a combined or sequenced fix that preserves action-critical lines only after cron announce/webhook delivery sanitizes them, with focused tests and one real cron proof.

Do we have a high-confidence way to reproduce the issue?

Yes by source inspection: current main tail-truncates command output before building cron summaries, and the wait/delivery paths consume that summary. I did not run a live cron job because this review is read-only.

Is this the best way to solve the issue?

No, not as currently mergeable: preserving action-critical lines is the right repair direction, but this branch must also sanitize or avoid non-interactive delivery before those lines are added to summaries.

Full review comments:

• [P1] Sanitize delivery before preserving auth lines — src/cron/command-runner.ts:193
  This adds preserved device-code/setup lines to the cron command summary, but current main still sends that same summary to cron announce delivery and completion webhooks without redaction. Please land or inline the delivery sanitizer first, or keep preserved lines out of non-interactive delivery until that boundary is safe.
  Confidence: 0.89

Overall correctness: patch is incorrect
Overall confidence: 0.88

AGENTS.md: found and applied where relevant.

Codex review notes: model internal, reasoning high; reviewed against 8242923fe393.

Label justifications:

• P1: The PR addresses a broken cron auth/setup workflow but can leak recovered auth output if merged before delivery redaction.
• merge-risk: 🚨 security-boundary: The patch can move device-code or setup-token output into unredacted non-interactive cron delivery paths.
• merge-risk: 🚨 message-delivery: Cron announce and webhook recipients may receive sensitive lines that were previously truncated away.
• merge-risk: 🚨 compatibility: Existing cron delivery consumers can receive different command-summary content after upgrade, including preserved earlier lines and new recovery text.
• rating: 🧂 unranked krab: Overall readiness is 🧂 unranked krab; proof is 🧂 unranked krab and patch quality is 🧂 unranked krab.
• status: 📣 needs proof: The PR needs real behavior proof before ClawSweeper can clear the contributor ask. Needs real behavior proof before merge: The PR body lists synthetic Vitest and formatting checks and explicitly says no live cron service restart/run was performed, so after-fix real cron behavior proof is still needed with private details redacted. After adding proof, update the PR body; ClawSweeper should re-review automatically. If it does not, the PR author or someone with repository write access can comment @clawsweeper re-review.

PR surface:

Source +220, Tests +57. Total +277 across 5 files.

Security concerns:

• [high] Preserved auth lines can reach unsanitized delivery — src/cron/command-runner.ts:193
  Device-code/setup lines preserved into summary can be sent through current cron announce and completion webhook paths before the redaction PR lands, widening sensitive-output exposure.
  Confidence: 0.88

What I checked:

• PR preservation hook: The PR enables preserveOutputLine for every cron command job, so matched device-code/setup lines can be carried into the returned command result. (src/cron/command-runner.ts:193, e996553449a1)
• PR summary formatting: The PR formats preserved stdout/stderr lines into summary whenever truncation happened, which is the field later used by delivery paths. (src/cron/command-runner.ts:204, e996553449a1)
• Current announce delivery sink: Current main takes result.summary as message and sends it through sendCronAnnouncePayloadStrict with no sanitizer in this path. (src/gateway/server-cron.ts:457, 8242923fe393)
• Current webhook delivery sink: Current main posts the finished cron event payload when evt.summary exists, so preserved summary text can leave through completion webhooks. (src/gateway/server-cron-notifications.ts:262, 8242923fe393)
• Current truncation behavior: Current main keeps only the newest captured bytes once maxOutputBytes is exceeded, which makes the linked issue source-reproducible without the PR. (src/process/exec.ts:255, 8242923fe393)
• Related canonical issue: The linked issue is open, source-backed, and explicitly describes interactive preservation as the complement to cron broadcast/webhook redaction.

Likely related people:

• mbelinky: GitHub path history shows feat(cron): support command jobs introduced command-backed cron summaries and process execution integration. (role: introduced behavior; confidence: high; commits: b8adc11977ab; files: src/cron/command-runner.ts, src/process/exec.ts, src/gateway/server-cron.ts)
• vincentkoc: Local blame attributes the current central cron/process/delivery lines to a recent commit, and GitHub path history shows recent process timeout and cron notification work in the same area. (role: recent area contributor; confidence: medium; commits: 28a90b0e8257, 66b94ba577b8, 28b374a8a7f6; files: src/process/exec.ts, src/cron/command-runner.ts, src/gateway/server-cron.ts)
• steipete: GitHub path history shows repeated cron gateway routing, notification, and persistence refactors that own the delivery surfaces affected by this PR. (role: adjacent owner by history; confidence: medium; commits: 85148f3b2099, 2bd07eead7e7; files: src/gateway/server-cron.ts, src/gateway/server-cron-notifications.ts)

• 🦀 challenger crab: rare, exceptional readiness with strong proof, clean implementation, and convincing validation.
• 🦞 diamond lobster: very strong readiness with only minor maintainer review expected.
• 🐚 platinum hermit: good normal PR, likely mergeable with ordinary maintainer review.
• 🦐 gold shrimp: useful signal, but proof or patch confidence is still limited.
• 🦪 silver shellfish: thin signal; proof, validation, or implementation needs work.
• 🧂 unranked krab: not merge-ready because proof is missing/unusable or there are serious correctness or safety concerns.
• 🌊 off-meta tidepool: rating does not apply to this item.

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