Ctxfile MCP server

What it does

ctxfile is a local-first MCP server that captures your project's working state—plan documents, key files, git status, and conversation history—into a structured context object. It lets you save a session in one AI agent and resume it in another without losing context, keeping everything on your machine by default.

• Load your full project context into any MCP-speaking agent (Claude, Cursor, Codex) with a single call instead of re-explaining your work.
• Save your current session and continue it in a different agent or on a different machine while preserving decisions and open items.
• Export a static context snapshot for use with hosted coding agents or CI systems that cannot access your local machine.

Tools this server exposes

Tool	Does
get_context	Returns a structured ContextObject containing plan docs, ranked key files within a token budget, git state, and optional Notion pages or LLM summaries.
save_session	Stores an agent-written summary of the current conversation for later retrieval.
continue_thread	Retrieves merged conversation history with provenance labels to hand to the next agent, resuming work across different harnesses or providers.
ingest_context	Schema-enforced endpoint for any agent harness without a native parser to load context using a prompt as adapter.

Before you enable it

An MCP server runs with whatever access you give it. Start with a development account rather than production, and check which tools the server exposes before you let an agent call them unattended.