Koskamo

ctxfw MCP

An open-core context firewall and Model Context Protocol (MCP) gatekeeper for autonomous coding agents. It combines an in-memory polyglot AST pruner with a deterministic axiomatic intake sieve to compact peripheral code, enforce axiomatic integrity, and ensure zero telemetry egress, reducing token consumption by 72.4%.

Package and access

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

ctxfw MCP logo, by heuristicolabCommunity listingLocal stdioSource reviewed; not executedPublished by heuristicolab
Vendor documentation

Checks and signals

Each line is separate evidence, not a trust score.

  • Popularity 7 GitHub stars

What you can do with it

  • Compact peripheral code by replacing implementations with interface signatures
  • Enforce axiomatic integrity by rejecting ungrounded architecture briefs
  • Ensure zero telemetry egress with guaranteed local execution
  • Reduce token mass for coding agents like Claude and Cursor

Source and maintenance

Community listingRegistry 4.1.1Apache-2.0
mcp-registry: io.github.heuristicolab/ctxfw@4.1.1Source repository
Last repository push
Latest release
v4.1.0
Maintenance checked

Packages and installation

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

ctxfw 4.1.1

pypi
ctxfw package definition
{
  "version": "4.1.1",
  "transport": "stdio",
  "identifier": "ctxfw",
  "registryType": "pypi",
  "packageArguments": [
    {
      "type": "positional",
      "value": "mcp"
    }
  ]
}

Tools

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

No tool definitions available.

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · repository · passed · metadata changed · updated
  • · backfill · recorded · Pre-expansion baseline; unobserved rich metadata remains unknown

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": {
    "ctxfw-mcp": {
      "command": "uvx",
      "args": [
        "ctxfw==4.1.1",
        "mcp"
      ]
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "ctxfw-mcp": {
      "command": "uvx",
      "args": [
        "ctxfw==4.1.1",
        "mcp"
      ]
    }
  }
}

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": {
    "ctxfw-mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "ctxfw==4.1.1",
        "mcp"
      ]
    }
  }
}

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": {
    "ctxfw-mcp": {
      "command": "uvx",
      "args": [
        "ctxfw==4.1.1",
        "mcp"
      ]
    }
  }
}

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