build

Work file: $ARGUMENTS (default: the only open file in `docs/work/`; two open files means ask which). Read the Handoff section first and continue from it — never restart a track marked done. For each track, in dependency order: 1. **Executor per the table.** Disjoint file sets may run as parallel `coder` agents, each with the track text, the decisions section and nothing else. Overlapping files run in this session, sequentially. If a coder would need a file outside its track, it reports and stops; you re-cut the tracks rather than let two writers share a file. Risky overlap goes to a worktree (`EnterWorktree`), not to hope. 2. **Check the return, do not trust it**: `git diff --stat` shows only the track's files; read the diff; run the track's verification command yourself (or through `runner`) and copy the verdict into the Journal. A coder's "tests pass" is a claim until the command ran here. 3. **Checkpoint**: update the Handoff (done / next / decided alone) before starting the next track. Every third track, `bash .claude/checks/gate.sh` in full and fix red before continuing. 4. **A figure moved?** The track is not done until `corpus-prover` showed it moved on the real corpus by the expected amount and the untouched figures stayed put. Stop conditions: a red gate you cannot explain, a decision the work file leaves open with no default, a change that would touch a shipped migration or a protocol. Write the state to the Handoff and say what is needed...