# Just

> Use this tool when you need to automate tasks with predefined recipes, execute commands with parameters, or validate script syntax. It solves problems related to context-efficient automation, providing a controlled alternative to unrestricted shell access. By integrating with the Model Context Protocol, it enables AI assistants to discover, run, and introspect Justfile recipes with ease.

Canonical page: https://skillsregistry.net/skills/promptexecution-just  
JSON: https://api.skillsregistry.net/v1/skills/promptexecution-just

## Description

Enables AI assistants to discover, execute, and introspect Justfile recipes through the Model Context Protocol. Provides tools for listing recipes, running commands with parameters, retrieving recipe details, and validating Justfile syntax. Designed for context-efficient automation with predefined recipes rather than unrestricted shell access.

## Trust

- **Trust score (0–1):** 0.80
- **Verification tier:** verified
- **Last scanned:** 2026-09-19

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** file-system
- **Updated:** 2026-09-19

## Source

- **Source listing:** [PulseMCP](https://www.pulsemcp.com/servers/promptexecution-just)
- **Repository:** <https://github.com/promptexecution/just-mcp>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "promptexecution-just"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/promptexecution-just` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/promptexecution-just/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt