ContextOS MCP

ContextOS is a local-first MCP server that acts as a context exoskeleton for AI coding agents. It optimizes the development lifecycle by storing evidence, plans, and architecture outside the main conversation to reduce token usage and context occupancy. It supports bounded API assistance, isolated CLI implementation, and persistent state management to keep development grounded in inspectable project state.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Community listingLocal stdioSource reviewed; not executedPublished by yubinbin32-ops

Vendor documentation

What you can do with it

Reduce token usage and context occupancy during AI coding sessions
Maintain persistent evidence and architecture outside the main conversation
Manage bounded API Micro assistance and isolated CLI implementation
Optimize the entire AI development lifecycle from planning to review

Source and maintenance

Community listingRegistry 3.0.3

mcp-registry: io.github.yubinbin32-ops/contextos@3.0.3 Source repository

Maintenance checked: Oct 31, 2026, 10:59 PM UTC

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

ghcr.io/yubinbin32-ops/contextos:3.0.3

oci

ghcr.io/yubinbin32-ops/contextos:3.0.3 package definition

{
  "transport": "stdio",
  "identifier": "ghcr.io/yubinbin32-ops/contextos:3.0.3",
  "registryType": "oci",
  "environmentVariables": [
    {
      "name": "CONTEXTOS_PROJECT_ROOT",
      "format": "string",
      "description": "Absolute path of the mounted project directory containing .contextos."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.

Cursor configuration

{
  "mcpServers": {
    "contextos-mcp-3-0-3": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "CONTEXTOS_PROJECT_ROOT=<YOUR_CONTEXTOS_PROJECT_ROOT>",
        "ghcr.io/yubinbin32-ops/contextos:3.0.3"
      ],
      "env": {
        "CONTEXTOS_PROJECT_ROOT": "<YOUR_CONTEXTOS_PROJECT_ROOT>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "contextos-mcp-3-0-3": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "CONTEXTOS_PROJECT_ROOT=<YOUR_CONTEXTOS_PROJECT_ROOT>",
        "ghcr.io/yubinbin32-ops/contextos:3.0.3"
      ],
      "env": {
        "CONTEXTOS_PROJECT_ROOT": "<YOUR_CONTEXTOS_PROJECT_ROOT>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.

VS Code configuration

{
  "servers": {
    "contextos-mcp-3-0-3": {
      "type": "stdio",
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "CONTEXTOS_PROJECT_ROOT=<YOUR_CONTEXTOS_PROJECT_ROOT>",
        "ghcr.io/yubinbin32-ops/contextos:3.0.3"
      ],
      "env": {
        "CONTEXTOS_PROJECT_ROOT": "<YOUR_CONTEXTOS_PROJECT_ROOT>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.

Claude Desktop configuration

{
  "mcpServers": {
    "contextos-mcp-3-0-3": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "CONTEXTOS_PROJECT_ROOT=<YOUR_CONTEXTOS_PROJECT_ROOT>",
        "ghcr.io/yubinbin32-ops/contextos:3.0.3"
      ],
      "env": {
        "CONTEXTOS_PROJECT_ROOT": "<YOUR_CONTEXTOS_PROJECT_ROOT>"
      }
    }
  }
}

Let your agent find its tools

Find servers like ContextOS MCP from your agent. Add Koskamo once to search the index for endpoints, access requirements, and client setup. Public discovery needs no key.

Connect Koskamo Explore workflows

See all 7,491