Facts
Verify specs and track implementations with AI agents and executable facts
Free - Free — open-source (MIT license)
About Facts
facts is an open-source toolkit and CLI for fact-driven development. Write atomic claims in a .facts file (draft/spec/implemented), let AI agents manage lifecycles, and run commands like `facts check` to verify facts against code (shell checks, grep, etc.). It summarizes project state, verifies code-backed claims, and helps teams keep specs precise and machine-checkable. MIT-licensed and designed for developer workflows and continuous verification.
Key Features
- Plain-text .facts format with lifecycle tags (@draft, @spec, @implemented)
- AI agents to manage fact lifecycles and track progress
- Executable/verifiable facts: attach shell commands to automatically confirm implementation
- CLI command (e.g., `facts check`) to summarize and verify project facts
- Open-source MIT-licensed toolkit designed for integration with codebases and CI
Who is this for?
Software developers and engineering teams who want precise, machine-verifiable specs and automated verification of implementation against requirements.
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