jac-mcp : MCP Server for AI-Assisted Jac Development
jac-mcp is a plugin for the Jac language that provides a Model Context Protocol server, giving AI assistants deep knowledge of Jac. It exposes grammar specifications, documentation, code examples, compiler tools, and prompt templates through a standardized protocol -- so any MCP-compatible AI client can write, validate, format, and debug Jac code.
Installation
jac-mcp is a plugin that runs on top of the jac binary, which provides the jaclang runtime. Install the binary first (see the installation guide), then add the plugin:
jac install jac-mcp
jaclangis provided by thejacbinary at runtime (a host dependency); it is not pulled from PyPI.
Quick Start
Start the MCP server with the default stdio transport, ready for IDE integration:
jac mcp
Inspect the available resources, tools, and prompts:
jac mcp --inspect
Then add the server to your AI client's MCP configuration. A minimal entry looks like:
{
"mcpServers": {
"jac": {
"command": "jac",
"args": ["mcp"]
}
}
}
See the MCP reference for the full list of tools, resources, prompts, transport options, and per-IDE integration steps.
Documentation
- Agent Skills & MCP guide: https://docs.jaseci.org/quick-guide/agent-skills-and-mcp/
- MCP reference: https://docs.jaseci.org/reference/mcp/
- Jac language: https://www.jac-lang.org
- GitHub repository: https://github.com/jaseci-labs/jaseci
License
MIT
1 maintainer
Metadata
1 maintainer
Release files for jac-mcp 0.1.24
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Source distribution (sdist)
| File | Size | Uploaded | Provenance | |
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| jac_mcp-0.1.24.tar.gz | 527.7 kB | Without provenance | Details |
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|---|---|---|---|---|
| jac_mcp-0.1.24-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 2.3 MB
Release files / jac_mcp-0.1.24.tar.gz
| Download URL | jac_mcp-0.1.24.tar.gz |
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| Size | 527.7 kB |
| Tags | Source |
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Release files / jac_mcp-0.1.24-py3-none-any.whl
| Download URL | jac_mcp-0.1.24-py3-none-any.whl |
|---|---|
| Size | 1.7 MB |
| Tags | Python 3 |
|
SHA-256 checksum How to use checksums |
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twine/6.1.0 CPython/3.13.12
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