Firmament for Claude Code

Make your team's Claude Code multiplayer

Your Claude Code learns how your codebase works. It writes a CLAUDE.md, and it builds up memory as you go, on your machine. The teammate who hits the same wall next week starts from nothing. So does the Cursor you switch to on Friday. The lesson was real. It just had nowhere to go.

Firmament doesn't replace your CLAUDE.md. Keep it. Import it in a few minutes and it stops being a file one person maintains, and becomes the shared knowledge every agent on the team learns from.

Free for a team of three. 30-day trial of everything.

What changes

I already keep a CLAUDE.md. Why add Firmament?

Keep it. A CLAUDE.md is a great start, but it is only what you wrote down, it lives in one repo, and it goes stale until someone edits it. Claude Code's own memory helps too, but it stays on your machine and never reaches a teammate. Firmament takes what you already wrote, adds what your agents learn while working, keeps it current, and serves it to every agent in every tool.

How it works in Claude Code

  1. 01Add Firmament as an MCP server in Claude Code. One command, your existing login.
  2. 02Import the CLAUDE.md you already have.
  3. 03Claude Code asks Firmament before a task, and reports back what it learned after.

Read the five-minute quickstart

Does this replace CLAUDE.md or Claude Code's memory?

No. Keep your CLAUDE.md, and Claude Code's own memory stays yours. Firmament is the shared layer on top, for the lessons worth giving the whole team, across every tool.

Do my teammates have to change how they work?

No. Everyone keeps using Claude Code as they do now. Firmament connects over MCP, so the sharing happens without anyone changing their setup.

What happens when I switch tools or someone leaves?

The knowledge stays with the company. It is yours to keep, export, and carry to whatever agent you run next, even when people or tools change.

In fairness

When a CLAUDE.md on its own is enough

If you are one person, in one repo, with rules that rarely change, a CLAUDE.md is genuinely the right tool. Firmament starts to matter the moment a second person joins, a second repo appears, or you start working across more than one tool.

Firmament also works in

Give every agent on your team the same brain.