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Muonry is now CodeDB Pro

Rach Pradhan · 4 min read

For most of its life, the fastest part of Codegraff Pro had its most cryptic name. muonry — the persistent daemon that runs every file, search, and edit tool in one process at roughly 0.7 ms per op — told you nothing about what it was or what it belonged to. Today it gets a name that does: CodeDB Pro.

codedb is the free, open-source retrieval engine that makes graff SOTA — 800+ stars, the symbol intelligence that knows where your code is. CodeDB Pro is the paid daemon that acts on it: it reads, searches, and edits the code codedb points to, in-process, without the ~15 ms fork/exec tax standalone tools pay on every call. The free tier finds it. The paid tier changes it. Now the names say so.

Why the name changed

muonry was a good engine behind a bad signpost. People saw it sitting next to codedb and had no idea the two were related — let alone that one was built on the other. They are: CodeDB Pro embeds codedb and extends it with a full edit and file toolchain. Calling it CodeDB Pro makes that legible. It is the Pro upgrade to the tool you already know, the way Logic Pro is to the thing you would expect.

What actually changes

Almost nothing you would feel. The daemon is the same tool with the same benchmarks. Three surface details move:

  • The binary is codedb-pro (was muonry).
  • The MCP server is codedbpro — your client now sees mcp__codedbpro__read, …__search, …__edit instead of mcp__muonry__*.
  • Config and session logs live under ~/.config/codedbpro/ (was ~/.config/muonry/).

It still runs zigrep, zigread, and zigpatch in-process — the same scope-mode search, structural reads, and symbol-safe patches, the same 0.7 ms batched ops. codedb (free) is untouched.

Your install migrates itself

If you already run muonry, you do not have to clean anything up by hand. Re-run the installer and it does the migration for you:

  • Removes the old muonry binary and its MCP registration from Claude Code, Codex, Gemini, and Cursor.
  • Carries your Pro license across to the new config location — you stay activated, no re-entering your key.
  • Installs codedb-pro and registers it as codedbpro.

Restart your agent afterward so it picks up the renamed server. That is the whole migration.

What isn't changing

codedb stays free and open source — same repo, same SOTA retrieval. Pricing is untouched: $99/yr individual, $160/yr team, same license, same seats. If you bought Codegraff Pro, you already own codedb Pro. Nothing to re-purchase, nothing to re-activate.

Upgrade

curl -fsSL https://codegraff.com/install.sh | sh
codedb-pro activate CGPRO-XXXX-XXXX you@company.com

New here? See the changelog for what the daemon does, or get CodeDB Pro.