Context Mode MCP Server

Content

Context Mode is an MCP server and multi-platform context-management system for AI coding agents. It is designed to keep raw tool output out of the model context window, index useful session events locally, and retrieve only the context that matters for the current task.

For Claude Code, the project documents a plugin marketplace install with hooks, slash commands, and routing enforcement. It also provides an MCP-only install for trying the server without automatic hooks.

Source Review

• https://github.com/mksglu/context-mode
• https://context-mode.com
• https://www.npmjs.com/package/context-mode

These sources were reviewed on 2026-06-05. Prefer the live repository and site for current platform support, plugin instructions, hook behavior, command names, and license details.

Features

• MCP sandbox tools for executing scripts and returning compact results.
• Local indexing and search for files, session events, and prior context.
• Session continuity through SQLite and FTS5 retrieval.
• Diagnostics, stats, purge, upgrade, and insight tools.
• Optional Claude Code plugin hooks and slash commands.
• Support for multiple agent platforms, including Claude Code, Gemini CLI, VS Code Copilot, Cursor, Codex, and others.

Installation

For MCP-only Claude Code setup:

claude mcp add context-mode -- npx -y context-mode

For JSON-based MCP clients:

{
  "mcpServers": {
    "context-mode": {
      "command": "npx",
      "args": ["-y", "context-mode"]
    }
  }
}

For Claude Code plugin setup with hooks and slash commands, use the project README's marketplace instructions and run its doctor command after installation.

Use Cases

• Run a compact script instead of reading many files into context.
• Search indexed session state after compaction.
• Track context savings and tool-output reductions.
• Keep long coding sessions recoverable without dumping full transcripts back into the model.
• Use local search over previously indexed files or outputs.

Safety and Privacy

Context Mode changes how agents route tool calls and store context. Review the installed MCP server, hooks, and local data stores before using it with sensitive projects. Purge indexed state when changing clients or projects, and inspect original files or outputs when exact evidence matters.

Duplicate Check

Existing context and statusline entries cover related workflow ideas, but no mksglu/context-mode MCP entry or source URL was found in content/mcp.