todou-impl-planlisted

# todou implement plan Execute a plan that lives as an **approved spec set on a todou issue**. Read `/todou-cli` first. ## Load the spec ```bash todou spec status <n> -p <proj> --json # confirm the latest version carries an approve verdict todou spec pull <n> <dir> -p <proj> # fetch the set into a scratch dir (never committed) ``` Read whichever of these exist (ignore missing ones): - `proposal.md` — the user's original requirements - `design.md` — the overall design - `api.md` — the API design involved - `plan.md` — the concrete execution plan If the latest version is **not** approved, stop and run the review loop from `/todou-plan` instead of implementing an unapproved plan — meaning **block on `todou issue watch <n> --type spec_review --since <cursor>`**. Never plan to re-check `spec status` later: a status call can miss a verdict that lands seconds afterwards, and a deferred re-check has no wake path — the agent goes idle forever. ## Execute Follow `plan.md`. If it has multiple steps, create a task list and manage progress through it. Move the card to In Progress if it isn't already. Where reality contradicts the plan (an assumption was wrong, a step is impossible as written), don't silently improvise: small deviations are fine with a note in the final summary; anything that changes the design gets a native question on the card (`comment add --questions` + `question wait`) before proceeding — and the answer recorded into `proposal.md` on the next spec