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Composer Qa

Category: General  ·  Sub-category: general-misc  ·  Last updated:
Run the executable QA of a `.mdl` spec — a `test QA-n`, a `suite`, or every suite carrying a tag — against a Composer dev server you start, driving each step as one operation call through the agent debug port, judging every step by the UI snapshot, and writing a per-run report. Use when asked to QA Composer, to run a plugin's `## QA` section, to verify a change end to end against the real app rather than a test runner, or when `/dxos:qa` is invoked. For ad-hoc probing of a live page use `composer-debug`; to record a walkthrough as video use `autocue`.
Security AStatic scan found no risk patternsHow grading works ›

From the source SKILL.md

A test is a written plan that a human and an agent execute from the same source: the human reads do:, you invoke: and evaluate assert:, both judge expect:. The language is [packages/reflect/deus/lang/qa.mdl](../../../packages/reflect/deus/lang/qa.mdl) — read it once; its Execution Rules are the contract this skill implements, and every rule there cost a false failure before it was written down. Tests live in the ## QA section of a PLUGIN.mdl, or in packages/apps/composer-app/spec/APP.mdl for journeys that cross plugins; suite blocks group them and carry the tags a Routine selects by.

What this skill does

Composer Qa is a community-contributed Claude Code skill in the general-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/composer-qa/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when asked to QA Composer, to run a plugin's `## QA` section, to verify a change end to end against the real app rather than a test runner, or when `/dxos:qa` is invoked. For ad-hoc probing of a live page use `composer-debug`; to record a walkthrough as video use `autocue`.

Who uses this skill

The Composer Qa Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 211,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/composer-qa
curl -L https://claudskills.com/skills/composer-qa/SKILL.md \
  -o ~/.claude/skills/composer-qa/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/composer-qa/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/composer-qa/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\composer-qa\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Composer Qa Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/composer-qa/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Composer Qa skill do?
Run the executable QA of a `.mdl` spec — a `test QA-n`, a `suite`, or every suite carrying a tag — against a Composer dev server you start, driving each step as one operation call through the agent debug port, judging every step by the UI snapshot, and writing a per-run report. Use when asked to QA Composer, to run a plugin's `## QA` section, to verify a change end to end against the real app rather than a test runner, or when `/dxos:qa` is invoked. For ad-hoc probing of a live page use `composer-debug`; to record a walkthrough as video use `autocue`.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Composer Qa skill?
Use Composer Qa when your Claude Code task falls under the General category — specifically in the general misc area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Composer Qa" or describe the task and let Claude pick). Browse related skills at /category/general/.
What is a Claude Code skill and how does the Composer Qa skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Composer Qa is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
dxos. (2026). Composer Qa [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/composer-qa/
BibTeX
@misc{composer-qa-2026,
  author    = {dxos},
  title     = {Composer Qa [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/composer-qa/}
}

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Security scan

Grade A · scanned 2026-10-25 — free static scan against the OWASP Agentic Skills Top 10.

The scan flagged 2 of 10 categories (filesystem, network), including lower-severity patterns. Patterns shown inside code fences are weighted as examples rather than instructions — read the grading methodology for what this does and does not guarantee.

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