Block Kit
openclaw/openclaw
Use proactively for structured or interactive Slack replies, and when asked to author or validate native Slack Block Kit JSON.
A skill that uses only shell and config code blocks for testing contamination.
MITAuto-check passed
Install Auxiliary Only Skill
$ npx skills add agent-ecosystem/skill-validator --skill auxiliary-only-skill -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install agent-ecosystem/skill-validator auxiliary-only-skill --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/agent-ecosystem/skill-validator.git skills-src && mkdir -p .claude/skills && cp -r skills-src/testdata/auxiliary-only-skill .claude/skills/auxiliary-only-skill && 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 "auxiliary-only-skill" agent skill from https://github.com/agent-ecosystem/skill-validator/tree/main/testdata/auxiliary-only-skill into .claude/skills/auxiliary-only-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "auxiliary-only-skill", 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/agent-ecosystem/skill-validator/tree/main/testdata/auxiliary-only-skillType 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 agent-ecosystem/skill-validator --skill auxiliary-only-skill -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install agent-ecosystem/skill-validator auxiliary-only-skill --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/agent-ecosystem/skill-validator.git skills-src && mkdir -p .agents/skills && cp -r skills-src/testdata/auxiliary-only-skill .agents/skills/auxiliary-only-skill && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "auxiliary-only-skill" agent skill from https://github.com/agent-ecosystem/skill-validator/tree/main/testdata/auxiliary-only-skill into .agents/skills/auxiliary-only-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "auxiliary-only-skill", 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 agent-ecosystem/skill-validator --skill auxiliary-only-skill -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install agent-ecosystem/skill-validator auxiliary-only-skill --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/agent-ecosystem/skill-validator.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/testdata/auxiliary-only-skill .cursor/skills/auxiliary-only-skill && 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 "auxiliary-only-skill" agent skill from https://github.com/agent-ecosystem/skill-validator/tree/main/testdata/auxiliary-only-skill into .cursor/skills/auxiliary-only-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "auxiliary-only-skill", 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/agent-ecosystem/skill-validator.git --path testdata/auxiliary-only-skill--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 agent-ecosystem/skill-validator --skill auxiliary-only-skill -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install agent-ecosystem/skill-validator auxiliary-only-skill --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/agent-ecosystem/skill-validator.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/testdata/auxiliary-only-skill .gemini/skills/auxiliary-only-skill && 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 "auxiliary-only-skill" agent skill from https://github.com/agent-ecosystem/skill-validator/tree/main/testdata/auxiliary-only-skill into .gemini/skills/auxiliary-only-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "auxiliary-only-skill", 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 agent-ecosystem/skill-validator auxiliary-only-skillInstalls 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 agent-ecosystem/skill-validator --skill auxiliary-only-skill -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/agent-ecosystem/skill-validator.git skills-src && mkdir -p .github/skills && cp -r skills-src/testdata/auxiliary-only-skill .github/skills/auxiliary-only-skill && 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 "auxiliary-only-skill" agent skill from https://github.com/agent-ecosystem/skill-validator/tree/main/testdata/auxiliary-only-skill into .github/skills/auxiliary-only-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "auxiliary-only-skill", 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 agent-ecosystem/skill-validator --skill auxiliary-only-skill -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install agent-ecosystem/skill-validator auxiliary-only-skill --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/agent-ecosystem/skill-validator.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/testdata/auxiliary-only-skill .opencode/skills/auxiliary-only-skill && 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 "auxiliary-only-skill" agent skill from https://github.com/agent-ecosystem/skill-validator/tree/main/testdata/auxiliary-only-skill into .opencode/skills/auxiliary-only-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "auxiliary-only-skill", 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
auxiliary-only-skill- GitHub stars
- 256
- Token cost
- ~143 tokens
- SKILL.md length
- 32 words
- Files
- 1
- Skills in repo
- 4
- Repo updated
- First seen
- Licence
- MIT
At a glance
A skill that uses only shell and config code blocks for testing contamination.
- SKILL.md covers Setup, Configuration and Running
- Calls brew
What it does
Auxiliary Only Skill is an agent skill from agent-ecosystem/skill-validator. A skill that uses only shell and config code blocks for testing contamination.
Its SKILL.md is about 140 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
The repository describes itself as: Validate Skill content against Agent Skill specification, with additional content density and quality checks. The licence is MIT.
Example prompts
- “/auxiliary-only-skill”
What it can do on your machine
Read from SKILL.md and the folder at commit 08e2f74. 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
Shell commands in SKILL.md call:
brew
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
Auxiliary Only Skill loads about 143 tokens when it runs. Until then it costs about 25 tokens; SKILL.md has 32 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 agent-ecosystem/skill-validator at commit 08e2f74, republished under its MIT licence (© agent-ecosystem). 32 words, ~143 tokens.
Download SKILL.mdSave it as
.claude/skills/auxiliary-only-skill/SKILL.md (or your agent's skills folder).- name
- auxiliary-only-skill
- description
- A skill that uses only shell and config code blocks for testing contamination.
Auxiliary Only Skill
This skill uses bash commands and config files but no application languages.
Setup
Install the required tools:
brew install jq yqConfiguration
Create a config file:
server:
host: localhost
port: 8080Alternatively use JSON:
{
"server": {
"host": "localhost",
"port": 8080
}
}Running
Start the service:
./start.sh --config config.yaml© agent-ecosystem, MIT. 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 testdata/auxiliary-only-skill of agent-ecosystem/skill-validator.
Open the folder on GitHubat commit 08e2f74
Compare with similar skills
Auxiliary Only Skill 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 |
|---|---|---|---|---|---|---|
| Auxiliary Only Skill this skillagent-ecosystem/skill-validator | 256 | — | ~143 | Automated safety check: Pass | MIT | |
| Block Kitopenclaw/openclaw | 392k | — | ~624 | Automated safety check: Pass | MIT | |
| Shell ScriptingRightNow-AI/openfang | 18k | — | ~827 | Automated safety check: Pass | Apache-2.0 | |
| Crush Shell Builtinscharmbracelet/crush | 29k | — | ~790 | Automated safety check: Pass | Custom licence | |
| Render Blockingthedaviddias/Front-End-Checklist | 74k | — | ~430 | Automated safety check: Pass | MIT | |
| Blocking IO Guardbytedance/deer-flow | 84k | — | ~1.7k | Automated safety check: Pass | MIT |
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Questions about Auxiliary Only Skill
What does Auxiliary Only Skill do?
A skill that uses only shell and config code blocks for testing contamination. Auxiliary Only Skill is an agent skill from agent-ecosystem/skill-validator. A skill that uses only shell and config code blocks for testing contamination.
How do I install Auxiliary Only Skill in Claude Code?
Run `npx skills add agent-ecosystem/skill-validator --skill auxiliary-only-skill -a claude-code`. Or copy the skill folder (testdata/auxiliary-only-skill in agent-ecosystem/skill-validator) into .claude/skills/auxiliary-only-skill in your project. Claude Code loads it when a task matches its description.
How do I install Auxiliary Only Skill in Codex?
Run `npx skills add agent-ecosystem/skill-validator --skill auxiliary-only-skill -a codex`. Or copy the skill folder (testdata/auxiliary-only-skill in agent-ecosystem/skill-validator) into .agents/skills/auxiliary-only-skill in your project. Codex loads it when a task matches its description.
Can I use Auxiliary Only Skill 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 agent-ecosystem/skill-validator --skill auxiliary-only-skill -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/auxiliary-only-skill, .gemini/skills/auxiliary-only-skill, .github/skills/auxiliary-only-skill and .opencode/skills/auxiliary-only-skill in your project.
What does Auxiliary Only Skill need to run?
Going by SKILL.md and its folder, Auxiliary Only Skill needs the command-line tools its instructions call (brew).
Does Auxiliary Only Skill 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 Auxiliary Only Skill 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 Auxiliary Only Skill use?
Auxiliary Only Skill is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Auxiliary Only Skill use?
About 143 tokens (SKILL.md is roughly 572 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 Auxiliary Only Skill?
Skills that share tags, products or a category with Auxiliary Only Skill: Block Kit (openclaw/openclaw, 392k stars), Shell Scripting (RightNow-AI/openfang, 18k stars), Crush Shell Builtins (charmbracelet/crush, 29k stars) and Render Blocking (thedaviddias/Front-End-Checklist, 74k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Auxiliary Only Skill?
agent-ecosystem (a GitHub organization) maintains it in agent-ecosystem/skill-validator, which has 256 GitHub stars. The repository holds 4 skills in this directory. The repository was last updated on September 20, 2026.
Source: agent-ecosystem/skill-validator on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.