Write down once what you’re building, and what it won’t do, in markdown your coding agent reads before it touches the code. No more starting from zero every session.
Free for macOS, Windows, and Linux. No account, no subscription.
Sound familiar?
A choice you ruled out on purpose comes back next session, written with total confidence. Nobody notices until it costs something.
You re-explain the project, paste the old plan, and grow CLAUDE.md, until nobody remembers where its rules came from.
A spec kit writes a long document for every change, often by the agent. Months later the specs and the code disagree, and a stale doc is worse than none.
How it fits
With the software framework, every feature gets one file: why it exists, what it promises, and what it won’t do. Your agent reads it before it writes a line, in the app or through eidos instructions in any terminal.
What you will use most
Claude Code or Codex beside the page, with the open spec attached. /grill makes it ask before it writes, and your own slash commands share the prompts that work.
Tasks point at their spec. The agent moves them, ticks their checklists, and notes what it learned.
eidos check flags a spec missing a section or a property, on your laptop and on every merge request.
No app required
The desktop app is optional. The same blueprints work from the CLI, and one command points any agent that reads AGENTS.md at the workflow.
$ curl -fsSL https://eidosmd.com/install | sh
$ eidos install @BuildableWorks/software
$ eidos agents --write
✓ created AGENTS.md with the Eidos nudge
$ eidos check
✓ no findingsStart here
Frames for the product, specs for the features, and a micro variant for small ones. Pick it when you make a new project, or install it from a terminal.
An app, a service, or a system
Frames for architecture, audience, criteria, and market, and specs grouped by domain.
$ eidos install @BuildableWorks/softwareIn the app: New Project, then pick it from the list.
Download Eidos MD, install the software framework, and write your first blueprint before the next session.
Free for macOS, Windows, and Linux. Your files stay plain text in a folder you own.