diff --git a/notes/tb-bctb.md b/notes/tb-bctb.md new file mode 100644 index 0000000..18616ad --- /dev/null +++ b/notes/tb-bctb.md @@ -0,0 +1,57 @@ +# Bead Worker Starvation Alert - tb-bctb + +## Issue +Open beads existed but Pluck (bead-worker) found none - appeared to be a configuration error. + +## Investigation Summary + +### Bead Count +- **Total beads**: 45 +- **Open**: 10 +- **In-progress**: 0 +- **Actually claimable**: 0 + +### Root Cause +All 10 open beads have special labels that exclude them from `bf claim`: + +**With `deferred` label (3 beads):** +- `tb-1me`: "Run tmux detector acceptance tests and gather metrics" (deferred, umbrella) +- `tb-23i`: "Record tmux detector viability verdict and resolve plan Open question 1" (deferred, split-child, umbrella) +- `tb-5n9`: "Prototype tmux-level fallback detector to validate the harness-agnostic adapter seam" (deferred, umbrella) + +**With `split-child` label only (7 beads):** +- `tb-163k`: "Analyze test results and document findings in decisions.md" +- `tb-1p2a`: "Document findings in decisions.md" +- `tb-2ir`: "Record tmux detector viability verdict in decisions.md" +- `tb-2lh`: "Run first test iteration and establish measurement baseline" +- `tb-3iu`: "Resolve Open question 1 in plan.md" +- `tb-5wj`: "Document production enablement or alternatives for tmux detector" +- `tb-62m`: "Execute remaining test iterations (runs 2-5)" + +### Design Behavior + +The `bf claim` command (bead-forge) internally filters beads with these labels: +- **`deferred`** - Beads that should be worked on later +- **`split-child`** - Sub-tasks that should be claimed together with their parent umbrella bead +- **`umbrella`** - Parent beads that manage their own children + +This is **working as designed**, not a configuration error. + +### Verification + +```bash +$ bf claim --assignee "test-worker" --dry-run +No beads available to claim +``` + +## Resolution + +**False alarm** - The starvation alert was triggered because the monitoring system saw open beads but didn't account for label-based filtering. The bead-worker system correctly identified that there are 0 beads available to claim after applying the intended filters. + +## Recommendations + +1. **Update starvation detection** - Future alerts should check `bf claim --dry-run` output instead of just counting open beads +2. **Label documentation** - Ensure the bead-worker documentation clearly explains which labels cause beads to be filtered +3. **Monitoring improvement** - The alert should distinguish between: + - **Actual starvation** (beads exist but can't be claimed due to a bug) + - **Expected filtering** (all open beads have special labels and shouldn't be claimed)