JCAppleScript

Control macOS apps via AppleScript/JXA: sanitized commands for Messages, Mail, Finder, and more.

What does this entry provide?

JCAppleScript is an MCP server entry in ChatHome Skills, sourced from Official MCP Registry and scored 51/100. As a Model Context Protocol server, it exposes tools that MCP-compatible LLM clients such as Claude, Cursor, and Copilot can call directly, extending an agent's reach beyond its built-in capabilities. ChatHome Skills discovered this entry through its daily ingest of official registries and GitHub discovery queries, and re-verifies repository facts, freshness signals, and install metadata on every run. The quality score weighs official-registry presence, a working install command, license clarity, GitHub star trajectory, and repository freshness — the full formula is on the Sources page. No automated install command is listed; check the repository for manual setup instructions. Review the last-pushed date and repository status before adding JCAppleScript to a production agent workflow; the snapshot facts below are point-in-time values from the most recent ingest.

Snapshot facts

Source: Official MCP Registry
Quality: 51/100
Install method: manual
Repo: johnnyclem/JCAppleScript
Repo updated: Aug 28, 2026

Install command

See source docs

Install method: manual

Review the upstream source before running this command.

GitHub project

Quality

Repo stars

Repo updated

Aug 28, 2026

How is this score calculated?

Weighted across six dimensions, scored 0-100.
Provenance (25): listed in an official or curated registry.
Installability (25): a runnable install command beats a declared transport, which beats a source checkout.
Maintenance (20): recency of the last push; archived entries score zero here.
Adoption (20): repository stars on a log curve.

MCP manifest

{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-08-28T16:01:20.088566Z",
      "publishedAt": "2026-08-28T16:01:20.088566Z",
      "statusChangedAt": "2026-08-28T16:01:20.088566Z"
    }
  },
  "server": {
    "name": "io.github.johnnyclem/jcas-mcp",
    "title": "JCAppleScript",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "version": "2.0.0",
    "packages": [
      {
        "version": "2.0.0",
        "transport": {
          "type": "stdio"
        },
        "fileSha256": "536f600c77ec180be0a6374f1586e5219b6a58e6b22f25cfb834af4ee410bbf5",
        "identifier": "https://github.com/johnnyclem/JCAppleScript/releases/download/v2.0.0/jcas-mcp.mcpb",
        "registryType": "mcpb",
        "environmentVariables": [
          {
            "name": "JCAS_SAFE_MODE",
            "description": "Set to 1 to disable tools that execute arbitrary code (execute_applescript, execute_jxa, tell_application) and registry commands flagged dangerous."
          },
          {
            "name": "JCAS_APP_MANIFESTS",
            "description": "Colon-separated list of JSON manifest files with additional community app definitions to load at startup."
          }
        ]
      }
    ],
    "repository": {
      "url": "https://github.com/johnnyclem/JCAppleScript",
      "source": "github"
    },
    "websiteUrl": "https://github.com/johnnyclem/JCAppleScript",
    "description": "Control macOS apps via AppleScript/JXA: sanitized commands for Messages, Mail, Finder, and more."
  }
}

Report an issue with this listing