cli-just
Use for just/justfile task automation: create justfiles, write recipes, configure settings, add modules/attributes, or set up command-runner workflows.
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/paulrberg/agent-skills --skill cli-just- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads cli-just automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
Just Command Runner
Create readable task automation that matches the repository's installed Just version and existing justfile conventions.
Defaults
-
Inspect
just --version, the existing justfile/module tree, andjust --listbefore editing. Installed capabilities and existing syntax are authoritative over this skill's examples. -
Preserve bespoke formatting. Do not rewrite a justfile with
just --fmt. Usejust --fmt --checkonly when the repository explicitly treats the built-in formatter as authoritative.just --dumpis inspection output, not a formatting source. -
Define multi-item string sequences one item per line with a parenthesized concatenation. Keep a trailing separator in every non-final item. Do not combine them into one long string. Triple-quoted strings are for values whose newlines are semantic, not visual wrapping. For example:
check-steps := ( "event-class-coverage " + "orphan-disposal " + "price-coverage" ) -
When creating a new standalone justfile, use the user's section-banner style. Existing repository organization overrides that style.
Workflow
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Determine the requested recipe behavior, inputs, outputs, cwd, shell, environment, dependencies, and success condition.
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Use the installed manual (
just --help,just --man, or https://just.systems/man/en/) for version-sensitive syntax. Read only the task-specific reference:Task Reference Recipes, parameters, dependencies, cache, executable checks, echo rules references/recipes.mdSettings, dotenv, lists, modules references/settings.mdExpressions, functions, constants references/syntax.mdShell or script recipes, macOS Bash constraints references/inline-scripts.mdCheck/write, status, aliases, organization references/patterns.md -
Make the smallest recipe or setting change. Do not enable unstable features unless the requested design needs them and the installed version supports them.
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Validate parsing with
just --listorjust --summary. Then execute the narrowest safe recipe path. For state-changing recipes, use an existing dry-run/check mode or inspect the expanded command first.
Opinionated Organization
For a new standalone file, prefer dependency declarations, constants, public recipes, checks, then private helpers. Use
set default-list := true when no single default action makes sense and the installed version supports it. Example
starting points are in examples/standalone.just and examples/devkit.just. Load one only when creating that shape.
Completion requires a parsable justfile, the requested recipe behavior, and execution or dry-run evidence appropriate to
its side effects. Finish with ### ✅ Just workflow ready, a compact recipe/alias/purpose table when several entries
changed, and ### 🧪 Verification with exact commands and outcomes. Keep confirmation prompts, recipe data output,
compiler output, and just --list output undecorated. Preserve the repository's own banner vocabulary.
FAQ
What does the cli-just skill do?
Use for just/justfile task automation: create justfiles, write recipes, configure settings, add modules/attributes, or set up command-runner workflows.
How do I install cli-just?
Run npx skills add https://github.com/paulrberg/agent-skills --skill cli-just in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/cli-just/ (personal) or .claude/skills/cli-just/ (project).
Which AI agents can use cli-just?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is cli-just safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains cli-just?
It is published by paulrberg in paulrberg/agent-skills. It has 785 recorded installs.
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