From b6056ba19f690ffa0e5c80c10d4d66a4d2750596 Mon Sep 17 00:00:00 2001 From: jedarden Date: Thu, 2 Jul 2026 15:12:43 -0400 Subject: [PATCH] docs(tb-67rg): investigate starvation alert - document false positive MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The 8 'invisible' open beads were correctly filtered by br claim due to unclosed blockers in a legitimate dependency chain. Root blocker: tb-1me (in_progress, updated 12min ago, within 30min TTL) - Directly blocks: tb-163k, tb-2ir, tb-2lh, tb-62m - Indirectly blocks chain: tb-3iu → tb-5wj → tb-23i → tb-5n9 The claim SQL filters out beads with unclosed blockers (claim.rs lines 317-322). This is correct behavior, not a configuration bug. All blocked beads have 'split-child' label but the blocker filter is what excludes them from claim eligibility, not the label itself. Bead-Id: tb-67rg Co-Authored-By: Claude --- notes/tb-67rg-investigation.md | 65 ++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 notes/tb-67rg-investigation.md diff --git a/notes/tb-67rg-investigation.md b/notes/tb-67rg-investigation.md new file mode 100644 index 0000000..5f36e69 --- /dev/null +++ b/notes/tb-67rg-investigation.md @@ -0,0 +1,65 @@ +# Investigation: Starvation Alert tb-67rg + +## Alert Summary +**Date:** 2026-07-02 +**Alert:** "Beads invisible to worker" - 8 open beads but `br claim` returned `{}` + +## Root Cause: NOT a Bug - Legitimate Blocking Chain + +### Analysis +The 8 "invisible" open beads were correctly filtered by `br claim` due to having **unclosed blockers**. This is the expected behavior per the claim SQL query in `bead-forge/src/claim.rs` (lines 317-322): + +```sql +AND NOT EXISTS ( + SELECT 1 FROM dependencies blocker_dep + INNER JOIN issues blocker ON blocker.id = blocker_dep.depends_on_id + WHERE blocker_dep.issue_id = i.id + AND blocker_dep.type IN ('blocks', 'parent-child', 'conditional-blocks', 'waits-for') + AND blocker.status != 'closed' +) +``` + +### The Blocking Chain +``` +tb-1me (in_progress, updated 12min ago) + ├─→ tb-163k (open, blocked by tb-1me) + ├─→ tb-2ir (open, blocked by tb-1me) + ├─→ tb-2lh (open, blocked by tb-1me) + ├─→ tb-62m (open, blocked by tb-1me) + └─→ tb-2ir → tb-3iu → tb-5wj → tb-23i → tb-5n9 + (chain of 5 more blocked beads) +``` + +**Root blocker:** `tb-1me` - "Run tmux detector acceptance tests and gather metrics" +- Status: `in_progress` +- Assignee: `claude-code-glm47-juliet` +- Last updated: 2026-07-02 18:59:36 UTC (~12 minutes ago) +- Claim TTL: 30 minutes (not stale yet) + +### All Open Beads Have Blockers + +| Bead ID | Title | Blocked By | +|---------|-------|------------| +| tb-163k | Analyze test results... | tb-1me | +| tb-2ir | Record tmux detector viability... | tb-1me | +| tb-2lh | Run first test iteration... | tb-1me | +| tb-62m | Execute remaining test iterations... | tb-1me | +| tb-3iu | Resolve Open question 1... | tb-2ir | +| tb-5wj | Document production enablement... | tb-3iu | +| tb-23i | Record tmux detector viability... | tb-5wj | +| tb-5n9 | Prototype tmux-level fallback detector... | tb-23i | + +### Labels on Blocked Beads +All blocked beads carry the `split-child` label, which indicates they were created from a parent/umbrella bead. This label does NOT affect claim eligibility - the blocker filter is what matters. + +## Conclusion + +**Status:** FALSE POSITIVE - No configuration error +**Cause:** Legitimate dependency blocking, not a bug +**Resolution:** Document the blocking chain behavior; update starvation detection to account for blocked beads + +## Recommendations + +1. **For Pluck/starvation detection:** When reporting "X open beads but none claimed," also check how many have unclosed blockers +2. **For workflow:** The blocking chain is valid - wait for `tb-1me` to complete, then the chain will unblock sequentially +3. **Documentation:** Add notes explaining that `split-child` beads with dependencies are filtered from claim queries