Blueprint — Construction Plan Generator
Turn a one-line objective into a step-by-step plan any coding agent can execute cold.
Overview
Blueprint is for multi-session, multi-agent engineering projects where each step must be independently executable by a fresh agent that has never seen the conversation history. Install it once, invoke it with /blueprint <project> <objective>.
When to Use This Skill
- Use when the task requires multiple PRs or sessions
- Use when multiple agents or team members need to share execution
- Use when you want adversarial review of the plan before execution
- Use when parallel step detection and dependency graphs matter
How It Works
- Research — Scans the codebase, reads project memory, runs pre-flight checks
- Design — Breaks the objective into one-PR-sized steps, identifies parallelism, assigns model tiers
- Draft — Generates the plan from a structured template with branch workflow rules, CI policy, and rollback strategies inline
- Review — Delegates adversarial review to a strongest-model sub-agent (falls back to default model if unavailable)
- Register — Saves the plan and updates project memory
Examples
Example 1: Database migration
/blueprint myapp "migrate database to PostgreSQL"
Example 2: Plugin extraction
/blueprint antbot "extract providers into plugins"
Best Practices
- ✅ Use for tasks requiring 3+ PRs or multiple sessions
- ✅ Let Blueprint auto-detect git/gh availability — it degrades gracefully
- ❌ Don't invoke for tasks completable in a single PR
- ❌ Don't invoke when the user says "just do it"
Key Differentiators
- Cold-start execution: Every step has a self-contained context brief
- Adversarial review gate: Strongest-model review before execution
- Zero runtime risk: Pure markdown — no hooks, no scripts, no executable code
- Plan mutation protocol: Steps can be split, inserted, skipped with audit trail
Installation
mkdir -p ~/.claude/skills
git clone https://github.com/antbotlab/blueprint.git ~/.claude/skills/blueprint