FoundercraftStart a new venture

Build package

Download a Codex-ready zip with PRD, spec, plan, and skills

Build package · ready for Codex

Export your build handoff

This example case study includes a complete Codex-ready zip — AGENTS.md, skills, PRD, MVP spec, implementation plan, and a first-session handoff. Download it or open it in Codex using the steps below.

Download build package (.zip)

What's in the zip

  • AGENTS.mdAgent routing for your venture
  • .agents/skills/Curated SDD + TDD skill library
  • docs/product-soul.mdProduct soul
  • docs/prd/venture-prd.mdVenture PRD
  • docs/specs/MVP-feature-spec.mdMVP feature spec (Slice 1)
  • docs/plans/implementation-plan.mdPhased implementation plan
  • docs/memory/agent-handoffs.mdFirst Codex session handoff
  • docs/venture/opportunity-signal.mdOpportunity signal appendix
  • OPEN-GAPS.mdExplicit unknowns
  • MANIFEST.jsonPackage manifest and checksums

Open in Codex

Use the zip in Codex

  1. Download the build package zip above.
  2. Unzip it into a new project folder.
  3. Open that folder in Codex (or Cursor with AGENTS.md).
  4. Paste the starter prompt below.

Starter prompt

I unzipped the Foundercraft build package. Read docs/memory/agent-handoffs.md and help me execute Slice 1.

Next step

Your venture model is complete enough to hand off. Download the build package zip — it includes PRD, MVP spec, TDD plan, skills, and a first Codex session handoff.

Good answer looks like: Unzip the package into a new folder, open in Codex, and paste the starter prompt from the Open in Codex section.

Download build package