Claude Code Agent Development
anthropics/claude-plugins-official
Explains how to write agents for Claude Code plugins: the markdown file with YAML frontmatter, trigger descriptions, model and color settings, and system prompt design.
Launch a subagent to critically and exhaustively audit a task plan markdown file.
Install Audit Task
$ npx skills add r3bl-org/r3bl-open-core --skill audit-task -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install r3bl-org/r3bl-open-core audit-task --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/r3bl-org/r3bl-open-core.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/audit-task .claude/skills/audit-task && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "audit-task" agent skill from https://github.com/r3bl-org/r3bl-open-core/tree/main/.agents/skills/audit-task into .claude/skills/audit-task/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "audit-task", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/r3bl-org/r3bl-open-core/tree/main/.agents/skills/audit-taskType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add r3bl-org/r3bl-open-core --skill audit-task -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install r3bl-org/r3bl-open-core audit-task --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/r3bl-org/r3bl-open-core.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/audit-task .agents/skills/audit-task && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "audit-task" agent skill from https://github.com/r3bl-org/r3bl-open-core/tree/main/.agents/skills/audit-task into .agents/skills/audit-task/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "audit-task", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add r3bl-org/r3bl-open-core --skill audit-task -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install r3bl-org/r3bl-open-core audit-task --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/r3bl-org/r3bl-open-core.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/audit-task .cursor/skills/audit-task && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "audit-task" agent skill from https://github.com/r3bl-org/r3bl-open-core/tree/main/.agents/skills/audit-task into .cursor/skills/audit-task/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "audit-task", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/r3bl-org/r3bl-open-core.git --path .agents/skills/audit-task--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add r3bl-org/r3bl-open-core --skill audit-task -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install r3bl-org/r3bl-open-core audit-task --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/r3bl-org/r3bl-open-core.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/audit-task .gemini/skills/audit-task && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "audit-task" agent skill from https://github.com/r3bl-org/r3bl-open-core/tree/main/.agents/skills/audit-task into .gemini/skills/audit-task/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "audit-task", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install r3bl-org/r3bl-open-core audit-taskInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add r3bl-org/r3bl-open-core --skill audit-task -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/r3bl-org/r3bl-open-core.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/audit-task .github/skills/audit-task && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "audit-task" agent skill from https://github.com/r3bl-org/r3bl-open-core/tree/main/.agents/skills/audit-task into .github/skills/audit-task/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "audit-task", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add r3bl-org/r3bl-open-core --skill audit-task -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install r3bl-org/r3bl-open-core audit-task --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/r3bl-org/r3bl-open-core.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/audit-task .opencode/skills/audit-task && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "audit-task" agent skill from https://github.com/r3bl-org/r3bl-open-core/tree/main/.agents/skills/audit-task into .opencode/skills/audit-task/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "audit-task", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
audit-task- GitHub stars
- 485
- Token cost
- ~289 tokens
- SKILL.md length
- 142 words
- Files
- 1
- Skills in repo
- 25
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Launch a subagent to critically and exhaustively audit a task plan markdown file.
- Works in 5 steps: Read the provided (which is typically a… → Launch a subagent using the… → The prompt for the subagent MUST… → …
- Tasks that involve Subagents
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Audit Task is an agent skill from r3bl-org/r3bl-open-core. Launch a subagent to critically and exhaustively audit a task plan markdown file. Looks for bugs, inconsistencies, missing features, and inaccurate, wrong, or dangerous steps.
Its SKILL.md is about 290 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Agent Workflows, covering Subagents. The repository describes itself as: TUI framework and developer productivity apps in Rust 🦀. The licence is Apache-2.0.
When your agent uses it
- Tasks that involve Subagents
Example prompts
- “/audit-task”
Workflow steps
5 steps, taken from the first numbered list in SKILL.md.
- Read the provided (which is typically a Markdown file in the task/` folder).
- Launch a subagent using the invoke_subagent tool. You MUST set the Model argument to pro (which maps to gemini-3.1-pro) and explicitly…
- The prompt for the subagent MUST instruct it to
- Wait for the subagent to complete its analysis.
- Present the subagent's findings to the user in a clear, structured report.
What it can do on your machine
Read from SKILL.md and the folder at commit 89db352. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Audit Task loads about 289 tokens when it runs. Until then it costs about 47 tokens; SKILL.md has 142 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from r3bl-org/r3bl-open-core at commit 89db352, republished under its Apache-2.0 licence (© r3bl-org). 142 words, ~289 tokens.
Download SKILL.mdSave it as
.claude/skills/audit-task/SKILL.md (or your agent's skills folder).- name
- audit-task
- description
- Launch a subagent to critically and exhaustively audit a task plan markdown file. Looks for bugs, inconsistencies, missing features, and inaccurate, wrong, or dangerous steps.
Audit Task
This skill is invoked when the user runs the /audit-task <file> slash command.
Procedure
- Read the provided
<file>(which is typically a Markdown file in thetask/folder). - Launch a subagent using the
invoke_subagenttool. You MUST set theModelargument topro(which maps to gemini-3.1-pro) and explicitly instruct it to use high reasoning effort. You can use an existing subagent likeresearch, or define a new one for this specific purpose. - The prompt for the subagent MUST instruct it to:
- Read the plan in the provided
<file>. - Audit the plan critically and exhaustively.
- Look for bugs, inconsistencies, and missing features.
- Identify any inaccurate, wrong, or dangerous steps/instructions.
- Report its findings clearly and systematically.
- Read the plan in the provided
- Wait for the subagent to complete its analysis.
- Present the subagent's findings to the user in a clear, structured report.
© r3bl-org, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in .agents/skills/audit-task of r3bl-org/r3bl-open-core.
Open the folder on GitHubat commit 89db352
Compare with similar skills
Audit Task next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Audit Task this skillr3bl-org/r3bl-open-core | 485 | — | ~289 | Automated safety check: Pass | Apache-2.0 | |
| Claude Code Agent Developmentanthropics/claude-plugins-official | 38k | 8 repos | ~2.8k | Automated safety check: Pass | Apache-2.0 | |
| Subagent Driven DevelopmentAsvarox/allkaraoke | 261 | 38 repos | ~1.2k | Automated safety check: Pass | None | |
| Dispatching Parallel Agentsultralisp/ultralisp | 258 | 41 repos | ~1.5k | Automated safety check: Pass | None | |
| Paseo Advisor Second Opiniongetpaseo/paseo | 20k | 1 repos | ~756 | Automated safety check: Pass | Custom licence | |
| Task Observerrebelytics/one-skill-to-rule-them-all | 3.2k | 1 repos | ~12k | Automated safety check: Pass | CC-BY-4.0 |
Similar skills
- Official
Subagent Driven Development
Asvarox/allkaraoke
A skill your agent uses when executing implementation plans with independent tasks in the current session
Dispatching Parallel Agents
ultralisp/ultralisp
A skill your agent uses when facing 2+ independent tasks that can be worked on without shared state or sequential dependencies
Paseo Advisor Second Opinion
getpaseo/paseo
Launches one separate agent through Paseo to give a second opinion on the current task, with a self-contained briefing and no permission to edit files.
Task Observer
rebelytics/one-skill-to-rule-them-all
Monitors task execution for skill improvement opportunities.
O2 Review Loop
openobserve/openobserve
Splits a change into planner, coder and independent reviewer roles: you confirm a spec, a subagent implements it, and a separate reviewer checks each round's local WIP commit.
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Related
Categories
Questions about Audit Task
What does Audit Task do?
Launch a subagent to critically and exhaustively audit a task plan markdown file. Audit Task is an agent skill from r3bl-org/r3bl-open-core. Launch a subagent to critically and exhaustively audit a task plan markdown file.
When should I use Audit Task?
Audit Task fits situations like: tasks that involve Subagents.
How do I install Audit Task in Claude Code?
Run `npx skills add r3bl-org/r3bl-open-core --skill audit-task -a claude-code`. Or copy the skill folder (.agents/skills/audit-task in r3bl-org/r3bl-open-core) into .claude/skills/audit-task in your project. Claude Code loads it when a task matches its description.
How do I install Audit Task in Codex?
Run `npx skills add r3bl-org/r3bl-open-core --skill audit-task -a codex`. Or copy the skill folder (.agents/skills/audit-task in r3bl-org/r3bl-open-core) into .agents/skills/audit-task in your project. Codex loads it when a task matches its description.
Can I use Audit Task in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add r3bl-org/r3bl-open-core --skill audit-task -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/audit-task, .gemini/skills/audit-task, .github/skills/audit-task and .opencode/skills/audit-task in your project.
What does Audit Task need to run?
SKILL.md names no scripts, command-line tools or credentials: Audit Task is instructions for the agent only.
Does Audit Task access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Audit Task safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Audit Task use?
Audit Task is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Audit Task use?
About 289 tokens (SKILL.md is roughly 1.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Audit Task?
Skills that share tags, products or a category with Audit Task: Claude Code Agent Development (anthropics/claude-plugins-official, 38k stars), Subagent Driven Development (Asvarox/allkaraoke, 261 stars), Dispatching Parallel Agents (ultralisp/ultralisp, 258 stars) and Paseo Advisor Second Opinion (getpaseo/paseo, 20k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Audit Task?
r3bl-org (a GitHub organization) maintains it in r3bl-org/r3bl-open-core, which has 485 GitHub stars. The repository holds 25 skills in this directory. The repository was last updated on October 8, 2026.
Source: r3bl-org/r3bl-open-core on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.