| name | blueprint |
| description | Turn a one-line objective into a step-by-step construction plan for multi-session, multi-agent engineering projects. Each step has a self-contained context brief so a fresh agent can execute it cold. |
| origin | ECC |
Blueprint -- Construction Plan Generator
Turn a one-line objective into a step-by-step construction plan that any coding agent can execute cold.
When to Use
- Breaking a large feature into multiple PRs with clear dependency order
- Planning a refactor or migration that spans multiple sessions
- Coordinating parallel workstreams across sub-agents
- Any task where context loss between sessions would cause rework
Do not use for tasks completable in a single PR or fewer than 3 tool calls.
How It Works
Blueprint runs a 5-phase pipeline:
- Research -- Pre-flight checks (git, gh auth, remote, default branch), then reads project structure, existing plans, and memory files.
- Design -- Breaks the objective into one-PR-sized steps (3-12 typical). Assigns dependency edges, parallel/serial ordering, model tier, and rollback strategy.
- Draft -- Writes a self-contained Markdown plan file to
plans/. Every step includes a context brief, task list, verification commands, and exit criteria.
- Review -- Delegates adversarial review to a strongest-model sub-agent against a checklist and anti-pattern catalog.
- Register -- Saves the plan, updates memory index, and presents the step count and parallelism summary.
Key Features
- Cold-start execution -- Every step includes a self-contained context brief
- Adversarial review gate -- Every plan is reviewed by a strongest-model sub-agent
- Branch/PR/CI workflow -- Built into every step, degrades gracefully without git/gh
- Parallel step detection -- Dependency graph identifies parallelizable steps
- Plan mutation protocol -- Steps can be split, inserted, skipped, reordered, or abandoned
- Zero runtime risk -- Pure Markdown skill, no executable code
Examples
/blueprint myapp "migrate database to PostgreSQL"
Produces plans/myapp-migrate-database-to-postgresql.md with ordered steps like: Add PostgreSQL driver, Create migration scripts, Update repository layer, Add integration tests, Remove old database code.
