Context Mode

Install

npx skillfoxx add mcp/context-mode

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

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

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

code --add-mcp '{"name":"context-mode","type":"stdio","command":"npx","args":["-y","context-mode"]}'

{
  "servers": {
    "context-mode": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "context-mode"
      ]
    }
  }
}

codex mcp add context-mode -- npx -y context-mode

[mcp_servers.context-mode]
command = "npx"
args = ["-y", "context-mode"]

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

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

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

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

{
  "mcp": {
    "context-mode": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "context-mode"
      ]
    }
  }
}

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

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

/plugin marketplace add mksglu/context-mode
/plugin install context-mode@context-mode

This is third-party code. Review the repository files before installing.

What it does

Context Mode connects to the agent as an MCP server and fights context bloat. It moves large tool output into a sandbox and returns only a compact summary to the context rather than raw data. It records work history, file edits, git operations, tasks and errors in SQLite, and on conversation compaction it retrieves only what is relevant via full-text search. It also encourages a specific habit: instead of reading dozens of files into context, write a short script through ctx_execute and print only the result. On hook-capable platforms routing to these tools turns on automatically; on others the rules are added by copying a single file.

Who it is for. For developers who run long sessions with a coding agent and keep hitting context-window limits.

Example request

Count the functions in the src folder by writing a script and print only the number

Limitations

It needs a suitable Node.js version and a local server install. Automatic routing works only on hook-capable platforms; elsewhere the rules are added by copying a file manually. The Insight analytics panel is a separate hosted service. It is under the Elastic License v2, which is not a fully open license, so keep that in mind.

How to disable. Remove the server from your agent's MCP configuration, and if you installed the Claude Code plugin, remove it via /plugin. Remove the hooks from the platform settings.

MCP

Transport

stdio

Authentication

not required

Security check

• Executes code through ctx_execute and reads project files
• Installs hooks that intercept the agent's tool calls

README in short

The README presents Context Mode as an MCP server that tackles context bloat from several angles. It moves large tool output into a sandbox, keeps session memory in SQLite with full-text search, and promotes a pattern where the agent writes a script instead of reading many files. A set of platforms is supported: where hooks exist, routing turns on by itself; where they do not, the rules are copied manually. Installation is via the Claude Code plugin, a standalone MCP server, or a global npm package with per-platform config and hooks. There are utility commands for stats, diagnostics and clearing the index.

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