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memory: check open PRs before picking up a Linear ticket #17

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Merged
WillTaylor22 merged 1 commit into from
May 26, 2026
Merged

memory: check open PRs before picking up a Linear ticket #17

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1 change: 1 addition & 0 deletions .claude/memory/MEMORY.md
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Expand Up @@ -16,3 +16,4 @@ Keep this file under 200 lines — anything longer is content bloat, not memory.
## Conventions
- [conventions/pr-session-id-marker](conventions/pr-session-id-marker.md) — PR body MUST end with `<!-- session-id: sesn_... -->` (or legacy `sthr_...`) so webhooks can resume
- [conventions/agent-review-marker](conventions/agent-review-marker.md) — Reviewer's verdict goes on the first line as `AGENT_REVIEW: APPROVED|REQUEST_CHANGES|ESCALATE — <rationale>`
- [conventions/check-open-pr-before-ticket-pickup](conventions/check-open-pr-before-ticket-pickup.md) — Before branching for a Linear ticket, grep open PRs for the ticket ID; abort if one already exists (PR #15 vs #16 ENG-26 race)
1 change: 1 addition & 0 deletions .claude/memory/conventions/check-open-pr-before-ticket-pickup.md
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Before branching for a Linear ticket picked from Triage/Todo, list open PRs and grep for the ticket ID in titles AND bodies. If a PR already exists for the ticket, do NOT open a parallel one — either continue the existing branch (if it's yours) or skip the ticket and let the other session ship it. ENG-26 was opened by two sessions in parallel today (PRs #15 and #16, branches `claude/eng-26-webhook-sesn-regex-sesn_01GwXk...` and `...sesn_01UTKG...`); #15 merged first and #16 had to be closed as redundant. The race is real because Linear's In-Progress transition isn't atomic across sessions that pick up at the same wall-clock tick. The cheap mitigation is one extra `list_pull_requests` + grep before `git checkout -b`.