SeedSpec 0.4.2 · experimental

Start from a seed, not a blank prompt.

SeedSpec starts with one SPEC.md. Bundle extra intent and reference material with it, then distribute one package for agents to implement from—instead of copy-pasting prompts.

What’s in a SeedSpec?

SeedSpec starts with just one SPEC.md file and lets you bundle other pieces of intent like skills, evals, behaviors, and more. Nested packages are for optional features or capabilities.

family-hub/example package

Required

  • SPEC.mdthe spec

Optional packaging

  • context-modules/
    • seedspec-engineer/
      • SKILL.mdagent skill
    • cloudflare-worker/
      • PROFILE.mdimplementation profile
  • packages/
    • notifications/
      • SPEC.mda nested seed
  • Start with the specWrite it like you would for a person.
  • Bundle the rest of the intentContext modules cover intent, skill, behavior, evaluation, policy, reference, and implementation profiles.
  • Nest what should stay optionalNested packages let you ship extra features or capabilities without rewriting the primary spec.

Why use SeedSpec?

A spec says what to build, but it doesn’t give a typical agent the extra skills or quality checks that make the implementation better.

You bring your own agent, like Claude or ChatGPT. Give it the SeedSpec package, and it has access to the additional intent that guides a better implementation.

What the evaluations found →

See how it feels to use

Two walkthroughs from the spec to the result an agent should produce.

Use cases

Share approved product thinking, vendor guidance, or client work without hiding the spec itself.

See all use cases →

Read the contract

The spec, schemas, and conformance suite are the contract. The rest of this site is explanation.

Okay, what’s next?