# Handoff: 2026-06-30-marathon-dynwf spec-gap marathon

**Date:** 2026-07-02  
**Status:** ACTIVELY RUNNING in background — wave 11/16 in progress

---

## What is happening

Running the full spec-gap marathon for zync.is: 160 tasks across waves 0–16. Each task audits a spec file and fixes all divergences to production-ready. The orchestrator is `~/.claude/workflows/run-plan-codex.js` (run-plan-codex harness). All LLM work is done by codex (gpt-5.4 → migrates to gpt-5.5 via config.toml).

**Plan JSONL:** `docs/plans/plan-2026-06-30-marathon-dynwf.jsonl`  
**Integration branch:** `plan/2026-06-30-marathon-dynwf`  
**Integration worktree:** `.wt-2026-06-30-marathon-dynwf-int/` (at repo root)  
**Log:** `/home/user/Projects/zync.is/tmp/codex-2026-06-30-marathon-dynwf.log`

---

## Current state

- **~130+ tasks committed** across waves 0–10 (reconcile() auto-skips done tasks on re-run)
- **Wave 11 started**, 13 tasks running. Currently implementing `partial-payment-recording`
- Waves 12–16 remain (~60 tasks total: 14+11+4+4+1)

---

## Resume command

```bash
node ~/.claude/workflows/run-plan-codex.js --slug 2026-06-30-marathon-dynwf --repo /home/user/Projects/zync.is --concurrency 2 >> /home/user/Projects/zync.is/tmp/codex-2026-06-30-marathon-dynwf.log 2>&1
```

Reconcile() auto-skips all already-committed tasks. Safe to re-run at any time after a HALT.

---

## Known blocker patterns and fixes

### 1. Merge conflict (HALT: commit failed: merge conflict)
Run in `.wt-2026-06-30-marathon-dynwf-int/`:
```bash
git merge plan/2026-06-30-marathon-dynwf--<taskId>
# resolve conflicts additively (keep both sides when different concerns)
git add <files> && git commit -m "merge branch 'plan/2026-06-30-marathon-dynwf--<taskId>' into plan/2026-06-30-marathon-dynwf"
git -C /home/user/Projects/zync.is worktree remove --force /home/user/Projects/zync.is/tmp/wt-2026-06-30-marathon-dynwf-<taskId>
git -C /home/user/Projects/zync.is branch -D plan/2026-06-30-marathon-dynwf--<taskId>
```
Then re-run marathon.

### 2. Zero-change task (HALT: implement failed: codex returned ok but NO changes)
Task is already fully implemented. Create empty marker commit on integration branch:
```bash
# in .wt-2026-06-30-marathon-dynwf-int/
git commit --allow-empty -m "feat(<taskId>): spec already fully implemented — no delta"
# clean up stale artifacts
git -C /home/user/Projects/zync.is worktree remove --force /home/user/Projects/zync.is/tmp/wt-2026-06-30-marathon-dynwf-<taskId> 2>/dev/null || true
git -C /home/user/Projects/zync.is branch -D plan/2026-06-30-marathon-dynwf--<taskId> 2>/dev/null || true
```
Then re-run.

### 3. Transient rc=1 (HALT: implement failed: codex transient (rc=1) attempt 2)
Rate limit or network issue. Clean up stale artifacts and re-run:
```bash
git -C /home/user/Projects/zync.is worktree remove --force /home/user/Projects/zync.is/tmp/wt-2026-06-30-marathon-dynwf-<taskId> 2>/dev/null || true
git -C /home/user/Projects/zync.is branch -D plan/2026-06-30-marathon-dynwf--<taskId> 2>/dev/null || true
```
Then re-run marathon.

### 4. Stale task branch from previous run (HALT: worktree add failed: branch already exists)
```bash
git -C /home/user/Projects/zync.is worktree remove --force /home/user/Projects/zync.is/tmp/wt-2026-06-30-marathon-dynwf-<taskId>
git -C /home/user/Projects/zync.is branch -D plan/2026-06-30-marathon-dynwf--<taskId>
```
Then re-run.

### 5. printf bug (HALT: cx-run.sh usage error: printf: --: invalid option)
Was caused by `printf '--skip...'` format in old cx-implement.sh (162-line version). **Already fixed** in current file (168 lines, uses `printf -- '--...'`). Should not recur.

### 6. Unsupported model (HALT: cx-run.sh usage error: model not supported)
`codex-5.4-mini` is NOT supported with ChatGPT auth. Revert `codex_impl_model` in meta line back to `gpt-5.4`.

---

## Conflict resolution principle

Always resolve **additively** — keep both sides when they touch different concerns. Both conflicting tasks added something legitimate. Never pick one side and discard the other.

Most common conflict files: `packages/db/src/queries/index.ts`, `packages/types/src/index.ts`, `packages/db/package.json`, route index files.

---

## Watching progress

```bash
tail -f /home/user/Projects/zync.is/tmp/codex-2026-06-30-marathon-dynwf.log | grep -E "HALT|COMMITTED|wave [0-9]+.*running|implement failed|gate0 RED|merge conflict"
```

---

## Suggested skills for next agent

- Read `AGENTS.md` (project source of truth)
- Invoke `zc-orchestrate` skill before any orchestration decisions
- Do NOT use the Workflow tool (see `feedback_no_workflow.md` in project memory)