Claude architects the work. Qwen implements it, one task at a time. You approve every change. Self-hosted, provider-agnostic (Qwen · Claude · OpenAI).
Reads your codebase and produces a validated Implementation Playbook — tasks, acceptance criteria, risks.
Executes the playbook task by task: proposes diffs, applies them, and runs the build to verify.
Pick the provider, review each diff, and gate every task. The agent works on your server, on your code.
mgc run --mode plan --provider anthropic "Add CSV export to the reports API" mgc playbook validate playbook.md # checked against a frozen schema mgc playbook run playbook.md # Qwen implements, you approve, build verifies
Layered .NET 8 backend · PostgreSQL · CLI-driven · propose / apply / VERIFY with auto-fix.