claude-skill
Delegate a task to the Claude Code CLI, typically a headless claude -p run. Use when the user wants the work executed through Claude Code rather than answered inline.
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/feiskyer/codex-settings --skill claude-skill- 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 claude-skill 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.
Claude Code Headless Mode
Build and run claude commands for work that should be executed through Claude Code itself.
| Reference | Read it when |
|---|---|
| references/flags-and-permissions.md | The command needs more than -p — permission modes, tool scoping, output formats, flag inventory, installation |
| references/examples.md | You want a worked command for a specific shape of task (read-only analysis, safe edit run, JSON report, resume, MCP, sandboxed unattended run) |
Requires the claude CLI installed and authenticated on the target machine.
Core rules
claude --helpon the target machine is the compatibility floor. CLI flags and permission-rule syntax move faster than docs and copied examples, and they differ between builds. Verify any uncommon flag there before emitting it.- Do not add
--modelunless the user asked for an override or the workflow must pin a model for reproducibility. The user's configured model is the right default. - Prefer
--append-system-promptover--system-promptunless replacing Claude Code's default behavior is the point. - Choose the least-permissive mode that still fits the task.
acceptEditsis the usual starting point for coding automation. For a truly unattended run, reach for explicit permission rules ordontAskfirst;bypassPermissionsis only for an already-isolated environment.
Check what the task needs
Before execution, confirm the CLI is available and authenticated. Consult claude --help for flags needed by this command; use version or diagnostic commands when compatibility or installation is in doubt. A request for a command example does not authorize running that task.
Basic shape
claude -p "summarize the repository architecture"
claude -p "review the auth layer for risks" --output-format json
Everything else is a matter of scoping tools and permissions around that — see the references.
When to pause
Pause for missing credentials, unavailable required capabilities, or a permission expansion. If an equivalent supported command stays within the request, use it without adding an approval step.
What to return
For execution requests, run the authorized command and inspect its result and relevant artifacts; do not stop at printing a command or treat exit code zero as proof that the requested work is complete. Continue bounded follow-up within the existing scope when work remains. For command-only requests, return the command without executing it.
Report the command, outcome, relevant checks, and any permission or validation gaps. Include a resume command only when the workflow is meant to continue later.
FAQ
What does the claude-skill skill do?
Delegate a task to the Claude Code CLI, typically a headless claude -p run. Use when the user wants the work executed through Claude Code rather than answered inline.
How do I install claude-skill?
Run npx skills add https://github.com/feiskyer/codex-settings --skill claude-skill 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/claude-skill/ (personal) or .claude/skills/claude-skill/ (project).
Which AI agents can use claude-skill?
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 claude-skill 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 claude-skill?
It is published by feiskyer in feiskyer/codex-settings. It has 137 recorded installs.
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