ClaudSkills / General / language-learning

Prompt Check

Q: What is a Claude Code skill and how does the Prompt Check 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. Prompt Check is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: General · Sub-category: language-learning · Last updated: 2026-05-28

type:audit type:review

Audit a prompt file (system prompt, agent definition, voice script, chained workflow) across four lenses — conflict, dominance, gap, drift — plus an optional Turkish phonetic lens for voice agents. Use when the user invokes /prompt-check, asks to "audit a prompt", "check this prompt for contradictions / silent overrides / gaps / drift / voice readability", or passes a path to a prompt file for review. On first run in a repo, walks the user through a 5-question wizard and saves repo defaults to `.promptchecker.json`. Produces line-anchored findings as `report.md` + `findings.json` in an isolated run directory. Never modifies the original prompt file.

About this skill (catalog notes)

Prompt Check includes pricing or quota commentary; 55 code blocks for direct copy-paste. At roughly 15,875 words the SKILL.md is on the longer end of the catalog distribution.

License: MIT
Original author: onurgoz
Indexed lastmod: 2026-05-28
Catalog position: General · language-learning
Indexed related skills: 10

How Prompt Check fits the catalog

Prompt Check sits in the General category under the language-learning sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

You audit a prompt file at the path supplied as $1. Read the prompt once, then dispatch each lens family to its dedicated subagent (static-lens-runner, drift-runner, tr-phonetic-runner). Merge their outputs in Phase 7. After the terminal summary (Phase 8), automatically enter the interactive review — Phase 9 (summary + decision parsing) and Phase 10 (action dispatch) are part of the default flow, not a separate command. Write all artefacts under an isolated run directory. Never modify the original prompt file except in Phase 10's applied step, governed by the SHA256 stale-audit guard.

What this skill does

Prompt Check is a community-contributed Claude Code skill in the language-learning sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/prompt-check/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when the user invokes /prompt-check, asks to "audit a prompt", "check this prompt for contradictions / silent overrides / gaps / drift / voice readability", or passes a path to a prompt file for review. On first run in a repo, walks the user through a 5-question wizard and saves repo defaults to `.

Who uses this skill

The Prompt Check 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 88,000+ 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/prompt-check
curl -L https://claudskills.com/skills/prompt-check/SKILL.md \
  -o ~/.claude/skills/prompt-check/SKILL.md

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

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

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 Prompt Check Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/prompt-check/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Prompt Check skill do?

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 Prompt Check skill?

Use Prompt Check when your Claude Code task falls under the General category — specifically in the language learning 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 Prompt Check" or describe the task and let Claude pick). Browse related skills at /category/general/.

What is a Claude Code skill and how does the Prompt Check 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. Prompt Check 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

Source: https://github.com/onurgoz/PromptChecker/blob/d4d6d03097230f694565dc3f25e8e5261f58d681/skills/prompt-check/SKILL.md
License: MIT
Author: onurgoz

Cite this skill

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

APA

onurgoz. (2026). Prompt Check [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/prompt-check/

BibTeX

@misc{prompt-check-2026,
  author    = {onurgoz},
  title     = {Prompt Check [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/prompt-check/}
}

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Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills. · What's New · Install guide · About · llms.txt

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