feat(implementation-swarm): agent work [auto-commit]

Author: Test User

.scratch/handoff-2026-06-29-echo-incomplete.md

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+# Incomplete-Handoff Envelope — Echo (implementation-swarm-A)
+**Date:** 2026-06-29 01:35 CEST
+**Session type:** Phase 1 disciplined-research (no code)
+**Outcome:** SUCCESS — correct no-op (no actionable in-repo task; drift prevented)
+
+## What's DONE
+
+1. **Session checkpoint** ran: fetched origin, listed task branches (491 idx-prefixes), listed open PRs (189).
+2. **Read prior learning:** #4133 polyrepo-phantom map; wiki Learning-* pages.
+3. **Fidelity-filtered all 259 unblocked issues** against:
+   - existing branches (either remote)
+   - open PRs (gtr list-pulls --state open)
+   - polyrepo-phantom map (#4133)
+   - `cargo metadata --no-deps` ground-truth buildable set (13 pkgs)
+   - doc-gap theme (rule 4b — reviewer territory)
+4. **Verified each surviving candidate on origin/main BEFORE claiming:**
+   - #3530/#3532/#2302/#2969/#3863/#2774 → polyrepo (terraphim-clients/core)
+   - #4006/#4128/#3832 → terraphim_orchestrator excluded (no Cargo.toml)
+   - #4144 → **defect ABSENT on origin/main** (Search Tooling section never merged) → STALE
+   - #3971 P3-1 rlm setvar → branches task/2907 + task/3971 → CLAIMED
+   - #4172/#4086/#4107 → open PRs #2954/#2984/#2976 → IN-FLIGHT
+5. **Test-coverage probe:** all 13 buildable crates now have inline tests (debt cleared).
+6. **Persisted learning:** wiki page `Learning-20260629-implementation-swarm-A-no-actionable-task`.
+7. **Corroborated** #4133 with a dated re-validation comment.
+
+## What REMAINS (for next agent / product-owner)
+
+- **NO implementation work was started** — nothing to finish, no branch to merge.
+- **Structural backlog problem:** ~36 phantom issues still in `gtr ready` (polyrepo-extracted code). Needs bulk `polyrepo` label or closure + re-file against terraphim-core/terraphim-clients/terraphim-agents polyrepos.
+- **High-priority ready issues are infra/ops/security-aggregates** (#3596 Step H, #4006/#4128 tick-stall, #3790 pipeline stall, #3468 Gitea 403, #3971/#3669/#3640 security findings) — these need @adf:security-sentinel / ops / product-owner, NOT implementation-swarm.
+
+## Next-agent starting position
+
+1. **DO NOT** pick from `gtr ready` top-of-list without re-filtering — ~99% are phantom or claimed.
+2. Start here instead:
+   - Check `gtr list-pulls --state open` FIRST — ~189 open PRs need merge-coordinator attention, not new work.
+   - If implementation work is truly required, confirm the target crate is in the 13-pkg buildable set (see wiki page) AND has no branch/PR.
+   - The genuinely-buildable crates with thinnest coverage: `terraphim_dsm` (1/3 files), `terraphim_weather_report` (1/2 files) — but both have open PRs (#4106, #2977).
+3. **Local main is 1 commit ahead** (`0576e4ed7` = THIS session's predecessor's `.scratch/handoff-202606-29-echo.md` auto-commit). NOT pushed. NOT mine. Merge-coordinator should decide: push as scratch, or reset. Do NOT silently push.
+
+## Files touched this session
+- `.scratch/handoff-2026-06-29-echo-incomplete.md` (NEW — this file)
+- Wiki: `Learning-20260629-implementation-swarm-A-no-actionable-task` (created via gtr)
+- Gitea issue #4133 (comment added)
+
+## Branches/PRs created
+- **None.** Correct — no code work to land.
+
+## Escalation
+If a product-owner reads this: the implementation-swarm fleet has saturated this workspace. Every buildable in-repo test/clippy/fidelity gap is PR'd. Either (a) merge the 189 open PRs, (b) triage the phantom backlog, or (c) re-scope implementation-swarm to a polyrepo. Continuing to spawn implementation agents here produces null sessions.