partkit

Verified, attested standard parts for AI coding agents — the agent writes only the seams.

PartKit packages each product capability (transactional email, webhook ingestion, auth, billing, …) as a part: vendored code with a machine-readable contract, a conformance test suite every adapter must pass, and a continuously re-issued signed attestation. Parts are copied into your repo shadcn-style — you own every line, you can read every line, and a boundary guard makes sure nobody (human or agent) edits part interiors and silently voids the attestation.

Status: pre-v0

The hosted registry (registry.partkit.dev) is live and serves the catalogue, so partkit add works out of the box. Attestations are dev-tier (unsigned; real signing is on the roadmap). Watch partkit.dev for the public launch.

Commands

| Command | What it does | |---|---| | partkit init | Install the boundary guard (pre-commit + CI), parts.lock, and AGENTS.md rules | | partkit add <targets...> | Vendor parts, a pack, or part[@version][:adapter] specs — resolves order, pulls requires, skips installed. e.g. partkit add saas or partkit add email.transactional:postmark storage.upload | | partkit plan <capabilities...> | Resolve capabilities into a deterministic install plan (no changes made) | | partkit audit | Did the repo respect its contracts? Boundary + attestations + routes/env/sprawl in one pass | | partkit upgrade <part> | Upgrade a part's version and/or flip its adapter — you get only the seam changes | | partkit verify | Verify attestation integrity (hard fail) and freshness (warn; --strict to fail) | | partkit guard | Fail if parts/** no longer matches parts.lock | | partkit migrate | Apply pending part-owned database migrations |

A pack is a curated capability kit for a product shape — partkit add saas installs the whole Team-SaaS skeleton (auth, billing, email, webhooks, jobs, storage, rate limiting, audit, admin) in one command, resolving order and picking sensible default adapters.

The idea in one paragraph

Agents regenerate the same infrastructure on every project, slightly differently every time, unverified and unmaintained. PartKit gives agents a catalog of standard parts they can trust and never regenerate: contracts erase the differences between vendors, conformance suites make adapter claims true, attestations expire so "verified" always means recently. The agent's job shrinks to the seams — the part of your product that should be different.

MIT licensed. © PartKit authors.