Archy MCP Server

I built archy after watching coding agents produce changes that passed review and rotted the import graph underneath. Then I measured whether that happens, and it barely does. It runs locally over stdio via the published package.

People connecting coding agent tools to Claude, Cursor, VS Code, or another MCP client. The project is written in Python.

VERIFIED ACTIVE

LAST COMMIT 2026-09-15 · ★ 7 · #57 OF 229 MAINTAINED CODING AGENT · VERIFIED 2026-09-18

MIT · Python servers · how we verify → /methodology

01 · Install Archy

Claude Code

claude mcp add hslee16-archy -- uvx archy

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "hslee16-archy": {
      "command": "uvx",
      "args": [
        "archy"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

pypi package archy - check the name against the project README before installing (PyPI has no namespace ownership)

registry namespace io.github.hslee16 is GitHub-verified and matches the repo owner

03 · What Archy can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v0.46.2 · 2026-09-05

the MCP registry published a command that is not a server · If you installed archy from the MCP registry, the handshake failed. Three defects, all on the path between archy and an MCP client (#462). · The published…

v0.46.1 · 2026-09-05

Two behaviour changes to read first · archy contracts now exits 1 when a contract could not have failed. A contract whose module patterns match nothing in the graph holds whatever the code does, and import-linter…

v0.46.0 · 2026-09-02

Over a five-hour agent run on this repository, archy check was invoked 20 times and archy contracts 0 times - while the model named contracts 31 times in its own reasoning. Awareness was never the deficit. The model…

04 · Who maintains Archy

archy is maintained by hslee16. It's the only MCP server we track from this author; the repo dates to May 2026.

05 · Facts

repository: github.com/hslee16/archy
website: https://github.com/hslee16/archy
category: coding agent - ranked #57 of 229 actively-maintained coding agent servers as of 2026-09-18.
release cadence: 10+ releases in the last 90 days (latest 2026-09-05)
registry: io.github.hslee16/archy (active, first published 2026-05-13 · 3 versions)
packages: pypi:archy

06 · Archy FAQ

What is Archy?

Is Archy still maintained?

Yes - as of 2026-09-18, its last commit was 2026-09-15 and it shipped 10+ releases in the last 90 days. We re-verify nightly.

How do I install Archy?

Run `uvx archy`. You can also paste the ready-made client config above.

Does Archy run locally?

Yes - it's a stdio server: it runs on your machine (via uvx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Archy

Alternatives to Archy

Maintained coding agent servers if Archy isn't the fit.

Pairs well with

Servers that cover what Archy doesn't - only shown when the pairing reason fits the companion.

More coding agent MCP servers · Code Cartographer · Agentic MCP · Witness · Memory Guard · MERN MCP

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