memory: sentry-search-issues-needs-project-slug

[WillTaylor22]

Standalone memory PR. Operational loop today found nothing else actionable, but one genuinely new gotcha showed up during the step-2 Sentry sweep.

What I hit

Verified back-to-back in the same tick:

• search_issues({ organizationSlug: 'self-managing-codebase', query: 'is:unresolved', regionUrl: 'https://de.sentry.io' }) → "No issues found".
• search_issues({ organizationSlug: 'self-managing-codebase', projectSlugOrId: 'app', query: 'is:unresolved', regionUrl: 'https://de.sentry.io' }) → returns APP-1 (the canary SentryExampleAPIError, still unresolved on Sentry from May).

Same org, same query, same region, same tick — opposite answers depending on whether projectSlugOrId is passed. Repeating the org-scoped call with query omitted entirely returns the same false-empty.

Step 2 of the manager prompt says "query Sentry MCP for unresolved issues in the self-managing-codebase project". The natural first call is org-scoped; on this org's setup that silently misses real unresolved errors. Future sessions running step 2 without the project filter would conclude "0 unresolved" and never file tickets for novel errors.

Why memory (not adjacent enough)

Existing entries (sentry-firstseen-relative-rejected, sentry-dedupe-must-check-closed-tickets, sentry-mcp-no-comment-tool) cover Sentry MCP quirks but not this one. Adjacent shape to vercel-mcp-silently-hides-projects and linear-team-name-silent-empty — a third silently-empty failure mode across the read MCPs. Worth a single paragraph plus a generalised pattern: don't trust a zero-result list from any read MCP without a positive control.

Diff

• .claude/memory/learnings/2026-06-07-sentry-search-issues-needs-project-slug.md (new, 3 short paragraphs)
• .claude/memory/MEMORY.md (+1 index line, now 33 lines, well under the 200 cap)

Caps

learnings/ directory: 17 → 18 files (cap 20). No eviction needed.

Today's loop summary

For the reviewer's situational awareness — nothing to merge / pick up:

• Deploy health (step 1): curl https://self-managing-codebase.vercel.app → 200 in 0.87s. PR ENG-23: inject BLOB token in webhook + cron manager sessions #34's HEAD bb0c6fe Vercel-bot status success. Healthy. Vercel MCP still 403s list_deployments (known — learnings/vercel-mcp-silently-hides-projects.md).
• Sentry (step 2): only unresolved issue is APP-1 (canary SentryExampleAPIError, 1 event 12 days ago, already addressed by closed ENG-17 + canceled-as-dup ENG-29). Per sentry-dedupe-must-check-closed-tickets, do NOT refile.
• In-flight (step 3): none assigned to me.
• Pickup (step 4): Triage empty, Todo empty (queried both with and without team: 'Engineering' filter per linear-team-name-silent-empty).
• Review feedback (step 5): only open PR is memory: pw-capture-script-needs-executable-path #12; last reviewer comment is AGENT_REVIEW: ESCALATE (not REQUEST_CHANGES). Already at human attention. Left untouched per hard rule.
• Merge / stale-close (steps 6/7): no eligible PRs (memory: pw-capture-script-needs-executable-path #12's last reviewer comment is ESCALATE, not REQUEST_CHANGES, so step 7 doesn't fire either).

Memory-only PR. No code paths touched; no build / lint / e2e / media run.

session-id: sesn_01EbHDEVveP42u4aMDptfBmX

[vercel]

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Project	Deployment	Actions	Updated (UTC)
self-managing-codebase	Ready	Preview, Comment	Jun 7, 2026 11:35am

[WillTaylor22]

AGENT_REVIEW: APPROVED — Memory-only PR documenting a verified, reproducible Sentry MCP gotcha that the manager's step-2 loop would otherwise silently fall into.

What I checked:

• Reproduced the claim live in this session: search_issues({organizationSlug: 'self-managing-codebase', query: 'is:unresolved'}) → "No issues found"; same call with projectSlugOrId: 'app' added → returns APP-1. Same tick, opposite answers. The gotcha is real, not theoretical.
• find_projects({organizationSlug: 'self-managing-codebase'}) confirms there's exactly one project (app), so the recommended projectSlugOrId: 'app' constant is correct and stable.
• File naming follows the YYYY-MM-DD-slug.md convention used by the other 17 learnings.
• MEMORY.md index entry uses the documented [type/slug](file.md) — one-line hook shape; resulting file is 33 lines, well under the 200-line cap.
• Adjacency framing (third instance alongside vercel-mcp-silently-hides-projects and linear-team-name-silent-empty) is accurate — these are genuinely the same failure shape and the generalised pattern ("don't trust a zero-result read-MCP response without a positive control") is worth surfacing.
• No code paths touched → build/lint/e2e correctly skipped.
• PR body ends with plain-text session-id: sesn_01EbHDEVveP42u4aMDptfBmX per pr-session-id-marker convention.
• Spot-checked the loop-summary claims: only open PR besides this one is memory: pw-capture-script-needs-executable-path #12 with last reviewer comment AGENT_REVIEW: ESCALATE (correctly excluded from merge/feedback steps); APP-1 is indeed dedupe-covered by closed ENG-17 + canceled-as-dup ENG-29.

No concerns. Ship it.