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Agent skill

Challenge

by wp-media in wp-media/wp-rocket

Adversarially review a grooming spec before implementation starts.

GPL-2.0Auto-check passed

Install Challenge

skills CLI
$ npx skills add wp-media/wp-rocket --skill challenge -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install wp-media/wp-rocket challenge --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/wp-media/wp-rocket.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/challenge .claude/skills/challenge && rm -rf skills-src

Use ~/.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/

Facts

Skill name
challenge
GitHub stars
767
Token cost
~674 tokens
SKILL.md length
271 words
Files
1
Skills in repo
15
Repo updated
First seen
Licence
GPL-2.0

At a glance

Adversarially review a grooming spec before implementation starts.

  • Works in 3 steps: Locate files → Invoke the challenger agent → Offer to post
  • SKILL.md covers Step 1 — Locate files, Step 2 — Invoke the challenger… and Step 3 — Offer to post
  • Calls gh and bash

What it does

Challenge is an agent skill from wp-media/wp-rocket. Adversarially review a grooming spec before implementation starts. Finds hidden risks, unvalidated assumptions, and missing dependencies. Standalone entry point for the challenger agent.

Its SKILL.md is about 670 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It works with WordPress. The repository describes itself as: Performance optimization plugin for WordPress. The licence is GPL-2.0.

Example prompts

  • “/challenge”

Workflow steps

3 steps, taken from the step headings in SKILL.md.

  1. Locate files
  2. Invoke the challenger agent
  3. Offer to post

What it can do on your machine

Read from SKILL.md and the folder at commit 3a96b66. 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:

    • gh
    • bash

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use gh, which can reach the network depending on how they are called.

    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

Challenge loads about 674 tokens when it runs. Until then it costs about 49 tokens; SKILL.md has 271 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~49
When it runs · the whole SKILL.md, loaded when a task matches
~674

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 wp-media/wp-rocket at commit 3a96b66, republished under its GPL-2.0 licence (© wp-media). 271 words, ~674 tokens.

Download SKILL.mdSave it as .claude/skills/challenge/SKILL.md (or your agent's skills folder).
name
challenge
description
Adversarially review a grooming spec before implementation starts. Finds hidden risks, unvalidated assumptions, and missing dependencies. Standalone entry point for the challenger agent.
argument-hint
<issue-number>

Challenge

Standalone adversarial spec review. Runs the full challenger analysis on an existing grooming spec and outputs a verdict (APPROVED / NEEDS_REVISION / BLOCKED) with MoSCoW-classified findings. Posting to the GitHub issue is your choice — you are prompted at the end.

Step 1 — Locate files

This skill targets wp-media/wp-rocket. Use $ARGUMENTS as the issue number N. Verify both files exist:

  • Issue file: .TemporaryItems/Issues/wp-rocket/issues/<N>.md
  • Spec file: .TemporaryItems/Issues/wp-rocket/issues/<N>-spec.md

If the spec does not exist, tell the user: "No spec found for issue #N. Run /groom <N> first to produce one." Stop here.

If only the issue file is missing, sync it:

bash
bash .claude/skills/issue-workflow/scripts/issue-sync.sh <N>

Step 2 — Invoke the challenger agent

Invoke the challenger sub-agent with:

  • Issue number N
  • Issue file path: .TemporaryItems/Issues/wp-rocket/issues/<N>.md
  • Spec file path: .TemporaryItems/Issues/wp-rocket/issues/<N>-spec.md
  • plan_version: 1 (or detect from the spec's Plan v<N> header if present)
  • CURRENT_MODEL: "standalone"
  • session_learnings: read Section 13 of AGENTS.md if it exists, else pass empty string
  • Repo: wp-media/wp-rocket

STANDALONE MODE — one difference from the normal pipeline run: Skip the StructuredOutput JSON return. Output the full human-readable verdict (APPROVED / NEEDS_REVISION / BLOCKED) and findings in a section titled ## Challenge Report, using the same format the orchestrator would receive (verdict, MoSCoW-classified findings, alternative suggestions).

Step 3 — Offer to post

After the agent responds, display its ## Challenge Report and ask:

Post this challenge report as a comment on issue #<N>? Reply yes to post, no to finish here.

If yes — post with dedup:

bash
EXISTING_ID=$(gh api repos/wp-media/wp-rocket/issues/<N>/comments \
  --jq '[.[] | select(.body | contains("<!-- ai-pipeline:challenge -->"))] | last | .id // empty')

Update with gh api --method PATCH repos/wp-media/wp-rocket/issues/comments/$EXISTING_ID if found, otherwise post a new comment. Body always starts with <!-- ai-pipeline:challenge -->.

If no — finish. Remind the user: if the verdict is NEEDS_REVISION, update the spec at .TemporaryItems/Issues/wp-rocket/issues/<N>-spec.md before running /groom <N> again or starting implementation.

© wp-media, GPL-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 .claude/skills/challenge of wp-media/wp-rocket.

Open the folder on GitHubat commit 3a96b66

Compare with similar skills

Challenge 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.

Challenge compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Challenge this skillwp-media/wp-rocket767—~674Automated safety check: PassGPL-2.0
WooCommerce Code Reviewwoocommerce/woocommerce11k3 repos~1.1kAutomated safety check: PassCustom licence
Wp Block Developmentgambitph/Stackable3504 repos~1.6kAutomated safety check: PassGPL-3.0
Wp Interactivity APIAutomattic/agent-skills2113 repos~1.5kAutomated safety check: PassNone
Postizgitroomhq/postiz-agent5062 repos~7.9kAutomated safety check: PassAGPL-3.0
Doc ScreenshotsWordPress/wordpress-playground2k—~1.8kAutomated safety check: PassGPL-2.0

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  • Wp Block Development

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More from wp-media/wp-rocket

All 15 skills in this repo

  • Knowledge Graph

    wp-media/wp-rocket

    Read and refresh wp-rocket's pre-built dependency graph at .claude/graph/dependency-graph.json.

    767 GitHub stars~1.3k tokensUpdated today
    Auto-check passed

  • Wordpress Compliance

    wp-media/wp-rocket

    A skill your agent uses when modifying templates, admin UI, output, hooks, plugin metadata, sanitization, escaping, or any code that must remain compliant with WordPress.org and repository PHPCS…

    767 GitHub stars~809 tokensUpdated today
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  • Issue Workflow

    wp-media/wp-rocket

    Work on a GitHub issue by number for wp-media/wp-rocket. An agent skill from wp-media/wp-rocket.

    767 GitHub starsUsed in 1 repo~756 tokens
    Auto-check passed

  • Wp Rocket Architecture

    wp-media/wp-rocket

    A skill your agent uses when changing service structure, Subscribers, ServiceProviders, Container wiring, bootstrapping, Context classes, or any code that may affect the core caching engine in WP…

    767 GitHub stars~1.8k tokensUpdated today
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  • Compliance

    wp-media/wp-rocket

    Check a change against WordPress.org plugin rules and PHPCS standards.

    767 GitHub stars~551 tokensUpdated today
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  • Docs

    wp-media/wp-rocket

    Update developer-facing documentation to reflect code changes on the current branch.

    767 GitHub stars~1.1k tokensUpdated today
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Works with

Questions about Challenge

What does Challenge do?

Adversarially review a grooming spec before implementation starts. Challenge is an agent skill from wp-media/wp-rocket. Adversarially review a grooming spec before implementation starts.

How do I install Challenge in Claude Code?

Run `npx skills add wp-media/wp-rocket --skill challenge -a claude-code`. Or copy the skill folder (.claude/skills/challenge in wp-media/wp-rocket) into .claude/skills/challenge in your project. Claude Code loads it when a task matches its description.

How do I install Challenge in Codex?

Run `npx skills add wp-media/wp-rocket --skill challenge -a codex`. Or copy the skill folder (.claude/skills/challenge in wp-media/wp-rocket) into .agents/skills/challenge in your project. Codex loads it when a task matches its description.

Can I use Challenge 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 wp-media/wp-rocket --skill challenge -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/challenge, .gemini/skills/challenge, .github/skills/challenge and .opencode/skills/challenge in your project.

What does Challenge need to run?

Going by SKILL.md and its folder, Challenge needs the command-line tools its instructions call (gh and bash).

Does Challenge access the network?

SKILL.md contains no URLs. Its commands use gh, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Challenge 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 Challenge use?

Challenge is published under the GPL-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Challenge use?

About 674 tokens (SKILL.md is roughly 2.7k 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 Challenge?

Skills that share tags, products or a category with Challenge: WooCommerce Code Review (woocommerce/woocommerce, 11k stars), Wp Block Development (gambitph/Stackable, 350 stars), Wp Interactivity API (Automattic/agent-skills, 211 stars) and Postiz (gitroomhq/postiz-agent, 506 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Challenge?

wp-media (a GitHub organization) maintains it in wp-media/wp-rocket, which has 767 GitHub stars. The repository holds 15 skills in this directory. The repository was last updated on October 7, 2026.

Source: wp-media/wp-rocket on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.