---
description: Produce or refresh an execution-ready plan
agent: planner
model: github-copilot/gpt-5.4
---

Create or update an execution-ready plan for: $ARGUMENTS

1. Gather the required repo and external context in parallel.
2. Use `researcher`, `explorer`, and `reviewer` as needed.
3. Write the canonical plan to basic-memory under `plans/<slug>`.
4. Include: objective, scope, assumptions, constraints, task breakdown, parallel lanes, verification oracle, risks, and open findings.
5. When parallelization or phased verification matters, define intended lanes with claimed files/areas, inter-lane dependencies, and verification intent (including `smoke` vs `full` mode where the distinction affects execution).
6. Ensure the plan gives builder enough information to create the structured `executions/<slug>` note without guessing lane ownership, claimed areas, or verification expectations.
7. Set `Status: approved` only when `builder` can execute the plan without guesswork. Otherwise leave it blocked and explain why.

Return the plan slug and the key execution checkpoints.