Agent skill

Artifact Quality

by chekusu in chekusu/wanman

Quality standards for structured deliverables, ensuring data is verifiable and traceable

Apache-2.0Auto-check passed

Install Artifact Quality

skills CLI
$ npx skills add chekusu/wanman --skill artifact-quality -a claude-code

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

GitHub CLI
$ gh skill install chekusu/wanman artifact-quality --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/chekusu/wanman.git skills-src && mkdir -p .claude/skills && cp -r skills-src/packages/core/skills/artifact-quality .claude/skills/artifact-quality && 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
artifact-quality
GitHub stars
688
Token cost
~519 tokens
SKILL.md length
93 words
Files
1
Skills in repo
6
Repo updated
First seen
Licence
Apache-2.0

At a glance

Quality standards for structured deliverables, ensuring data is verifiable and traceable

  • Works in 5 steps: Missing source: source is empty or just… → Inflated confidence: Estimated data… → Missing units: Amounts without currency,… → …
  • SKILL.md covers Required Fields, Source Identifier Format, Confidence Scoring Guide and Cross-Validation, plus 2 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Artifact Quality is an agent skill from chekusu/wanman. Quality standards for structured deliverables, ensuring data is verifiable and traceable

Its SKILL.md is about 520 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: wanman is an open-source agent matrix runtime inspired by Japanese one-man trains. It lets human users step back into an observer role while local agent runtimes coordinate… The licence is Apache-2.0.

Example prompts

  • “/artifact-quality”

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

  1. Missing source: source is empty or just says "internet"
  2. Inflated confidence: Estimated data labeled 0.9+
  3. Missing units: Amounts without currency, areas without units
  4. Vague timing: No data collection date specified
  5. Inconsistent paths: path does not follow a consistent naming convention

What it can do on your machine

Read from SKILL.md and the folder at commit d3a8138. 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 (its code samples are bash).

    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

Artifact Quality loads about 519 tokens when it runs. Until then it costs about 26 tokens; SKILL.md has 93 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~26
When it runs · the whole SKILL.md, loaded when a task matches
~519

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 chekusu/wanman at commit d3a8138, republished under its Apache-2.0 licence (© chekusu). 93 words, ~519 tokens.

Download SKILL.mdSave it as .claude/skills/artifact-quality/SKILL.md (or your agent's skills folder).
name
artifact-quality
description
Quality standards for structured deliverables, ensuring data is verifiable and traceable

Artifact Quality Standards

Required Fields

Every artifact's metadata must include:

FieldTypeDescription
sourcestringData source identifier
confidencenumber (0-1)Confidence score

Source Identifier Format

training_data        → From model training data (lowest confidence)
estimate             → Extrapolated from known data
web_search:<domain>  → Web search result, specify the domain
government_data      → Official government data
industry_report      → Industry report
api:<service>        → API call result
cross_validated      → Cross-validated

Confidence Scoring Guide

0.9+    → Official data, multi-source validated
0.7-0.9 → Reliable source, single validation
0.5-0.7 → Web search result, not cross-validated
0.3-0.5 → Extrapolation/estimate with reasonable basis
0.1-0.3 → Training data or rough estimate

Cross-Validation

When the CEO or another agent validates an artifact, update the metadata:

bash
wanman artifact put --kind market_data --path "competitors/pricing" \
  --meta '{"source":"cross_validated","confidence":0.85,"verified":true,"verified_by":"ceo","verified_at":"2024-01-15","original_source":"web_search:dianping.com","validation_notes":"consistent with Meituan data"}'

Common Quality Issues

  1. Missing source: source is empty or just says "internet"
  2. Inflated confidence: Estimated data labeled 0.9+
  3. Missing units: Amounts without currency, areas without units
  4. Vague timing: No data collection date specified
  5. Inconsistent paths: path does not follow a consistent naming convention

Path Naming Convention

costs/{category}/{item}          → Cost data
revenue/{scenario}/{period}      → Revenue forecasts
competitors/{name}/{metric}      → Competitor data
market/{segment}/{metric}        → Market data
location/{area}/{metric}         → Location data

© chekusu, 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 packages/core/skills/artifact-quality of chekusu/wanman.

Open the folder on GitHubat commit d3a8138

Compare with similar skills

Artifact Quality 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.

Artifact Quality compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Artifact Quality this skillchekusu/wanman688—~519Automated safety check: PassApache-2.0
Verify All DeliverablesHKUDS/OpenSpace7.8k—~751Automated safety check: PassMIT
Verify Thiscursor/plugins10k2 repos~693Automated safety check: PassNone
Verifyasgeirtj/system_prompts_leaks69k—~3kAutomated safety check: PassCC0-1.0
Artifacts Buildernexu-io/open-design100k—~347Automated safety check: PassApache-2.0
Web Artifacts Builderanthropics/skills180k41 repos~769Automated safety check: PassApache-2.0

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Questions about Artifact Quality

What does Artifact Quality do?

Quality standards for structured deliverables, ensuring data is verifiable and traceable. Artifact Quality is an agent skill from chekusu/wanman.

How do I install Artifact Quality in Claude Code?

Run `npx skills add chekusu/wanman --skill artifact-quality -a claude-code`. Or copy the skill folder (packages/core/skills/artifact-quality in chekusu/wanman) into .claude/skills/artifact-quality in your project. Claude Code loads it when a task matches its description.

How do I install Artifact Quality in Codex?

Run `npx skills add chekusu/wanman --skill artifact-quality -a codex`. Or copy the skill folder (packages/core/skills/artifact-quality in chekusu/wanman) into .agents/skills/artifact-quality in your project. Codex loads it when a task matches its description.

Can I use Artifact Quality 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 chekusu/wanman --skill artifact-quality -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/artifact-quality, .gemini/skills/artifact-quality, .github/skills/artifact-quality and .opencode/skills/artifact-quality in your project.

What does Artifact Quality need to run?

SKILL.md names no scripts, command-line tools or credentials: Artifact Quality is instructions for the agent only.

Does Artifact Quality 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 Artifact Quality 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 Artifact Quality use?

Artifact Quality 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 Artifact Quality use?

About 519 tokens (SKILL.md is roughly 2.1k 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 Artifact Quality?

Skills that share tags, products or a category with Artifact Quality: Verify All Deliverables (HKUDS/OpenSpace, 7.8k stars), Verify This (cursor/plugins, 10k stars), Verify (asgeirtj/system_prompts_leaks, 69k stars) and Artifacts Builder (nexu-io/open-design, 100k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Artifact Quality?

chekusu (a GitHub organization) maintains it in chekusu/wanman, which has 688 GitHub stars. The repository holds 6 skills in this directory. The repository was last updated on June 14, 2026.

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