Archcore MCP
Local stdio MCP server that lets AI coding agents read and maintain structured architecture, rules, and decisions directly from your repository.
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Overview
Archcore is a git-native context layer for AI coding agents. The CLI keeps specs, architecture decisions, rules, plans, and project knowledge in .archcore/, versioned with your code, and serves the relevant context to coding agents through MCP and session hooks. It ships as a CLI and a local stdio MCP server, so any MCP-compatible coding agent can read and write your project context through standard tools. Use it for persistent project context across Claude Code, Cursor, Codex CLI, GitHub Copilot, Gemini CLI, OpenCode, Roo Code, and Cline.
Installation
claude mcp add --transport stdio archcore -- archcore mcp # or add the server manually
Configuration
Configuration example is not available yet.
Capabilities
- Search project context
Find applicable ADRs, rules, and specs before editing code using `search_documents`.
- Record decisions as ADRs
Capture a technical decision as a structured document with `create_document`.
- Browse and read documents
List and open any context document in `.archcore/` via `list_documents` and `get_document`.
- Update existing context
Keep rules and specs current by editing documents in place with `update_document`.
- Link related documents
Connect docs with `add_relation`/`remove_relation` using types like `implements` or `depends_on`.
- Bootstrap empty repos
Let the agent initialize `.archcore/` itself with `init_project` when starting fresh.
Tags
- development
- coding-agent
- documentation
- knowledge-retrieval
- version-control
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