New: 97,000+ skills indexed from GitHub repos with 100+ stars · every skill safety-checkedBrowse top skillsTop skills
Esc to closeBrowse all skills
Submit a skillBrowse skills
Submit a skillBrowse skills

Agent skill

Validate

by MillenniumDawn in MillenniumDawn/Millennium-Dawn

Run the Millennium Dawn validation tools and summarize errors by category as file:line.

CC-BY-SA-4.0Auto-check passed

Install Validate

skills CLI
$ npx skills add MillenniumDawn/Millennium-Dawn --skill validate -a claude-code

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

GitHub CLI
$ gh skill install MillenniumDawn/Millennium-Dawn validate --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/MillenniumDawn/Millennium-Dawn.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/validate .claude/skills/validate && 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
validate
GitHub stars
137
Token cost
~252 tokens
SKILL.md length
93 words
Files
1
Skills in repo
24
Repo updated
First seen
Licence
CC-BY-SA-4.0

At a glance

Run the Millennium Dawn validation tools and summarize errors by category as file:line.

  • Works in 5 steps: Build the command flags from the arguments → Run from the project root → Present results grouped by validator… → …
  • Explicitly asks to validate
  • Calls python3

What it does

Validate is an agent skill from MillenniumDawn/Millennium-Dawn. Run the Millennium Dawn validation tools and summarize errors by category as file:line. Use only when the user explicitly asks to validate, e.g. "/validate", "run the validators". Args: "staged" and/or "strict".

Its SKILL.md is about 250 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: Millennium Dawn and it's codebase. The licence is CC-BY-SA-4.0.

When your agent uses it

  • Explicitly asks to validate

Example prompts

  • “/validate”
  • “run the validators”
  • “staged”
  • “/validate”

Requirements

  • Python 3

Workflow steps

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

  1. Build the command flags from the arguments
  2. Run from the project root
  3. Present results grouped by validator category (variables/flags, scripted localisation, decisions, events, etc.)
  4. For each category with errors, show each error as: file:line — description
  5. End with a summary line: total error count, or "All validators passed" if clean

What it can do on your machine

Read from SKILL.md and the folder at commit c0b396c. 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:

    • python3

    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

Validate loads about 252 tokens when it runs. Until then it costs about 55 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
~55
When it runs · the whole SKILL.md, loaded when a task matches
~252

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 MillenniumDawn/Millennium-Dawn at commit c0b396c, republished under its CC-BY-SA-4.0 licence (© MillenniumDawn). 93 words, ~252 tokens.

Download SKILL.mdSave it as .claude/skills/validate/SKILL.md (or your agent's skills folder).
name
validate
description
Run the Millennium Dawn validation tools and summarize errors by category as file:line. Use only when the user explicitly asks to validate, e.g. "/validate", "run the validators". Args: "staged" and/or "strict".
disable-model-invocation
true

Run the Millennium Dawn validation tools and summarize the results.

Supported arguments: staged (only validate git-staged files), strict (fail on errors), or both. Requested arguments: $ARGUMENTS

Steps:

  1. Build the command flags from the arguments:
    • If "staged" is present, add --staged
    • If "strict" is present, add --strict
  2. Run from the project root:
    python3 tools/validation/run_all_validators.py <flags>
  3. Present results grouped by validator category (variables/flags, scripted localisation, decisions, events, etc.)
  4. For each category with errors, show each error as: file:line — description
  5. End with a summary line: total error count, or "All validators passed" if clean

© MillenniumDawn, CC-BY-SA-4.0. 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/validate of MillenniumDawn/Millennium-Dawn.

Open the folder on GitHubat commit c0b396c

Compare with similar skills

Validate 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.

Validate compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Validate this skillMillenniumDawn/Millennium-Dawn137—~252Automated safety check: PassCC-BY-SA-4.0
Error Handlingaffaan-m/ECC274k1 repos~2.7kAutomated safety check: PassMIT
Error Handlingthedaviddias/Front-End-Checklist74k—~416Automated safety check: PassMIT
Error Handlingaffaan-m/ECC274k—~2.4kAutomated safety check: PassMIT
N8n Error Handlingsickn33/agentic-awesome-skills47k1 repos~4.9kAutomated safety check: PassMIT
Research Summarizeralirezarezvani/claude-skills28k2 repos~2.7kAutomated safety check: PassMIT

Similar skills

  • Error Handling

    affaan-m/ECC

    Patterns for robust error handling across TypeScript, Python, and Go.

    274k GitHub starsUsed in 1 repo~2.7k tokens
    DevelopmentAuto-check passed

  • Error Handling

    thedaviddias/Front-End-Checklist

    A skill your agent uses when reviewing scripts, client components, bundles, or runtime behavior related to Implement proper error handling.

    74k GitHub stars~416 tokensUpdated yesterday
    DevelopmentAuto-check passed

  • Error Handling

    affaan-m/ECC

    TypeScript、Python、Goにわたる堅牢なエラー処理のパターン。型付きエラー、エラー境界、リトライ、サーキットブレーカー、ユーザー向けエラーメッセージをカバーします。

    274k GitHub stars~2.4k tokensUpdated 2 days ago
    DevelopmentAuto-check passed

  • N8n Error Handling

    sickn33/agentic-awesome-skills

    Design visible, structured, recoverable n8n failures using error outputs, retries, Error Trigger workflows, and HTTP error responses.

    47k GitHub starsUsed in 1 repo~4.9k tokens
    Productivity & AutomationAuto-check passed

  • Research Summarizer

    alirezarezvani/claude-skills

    Structured research summarization agent skill for non-dev users.

    28k GitHub starsUsed in 2 repos~2.7k tokens
    Research & ScienceAuto-check passed

  • Error Handling Patterns

    wshobson/agents

    Master error handling patterns across languages including exceptions, Result types, error propagation, and graceful degradation to build resilient applications.

    40k GitHub starsUsed in 10 repos~1k tokens
    DevelopmentAuto-check passed

More from MillenniumDawn/Millennium-Dawn

All 24 skills in this repo

  • Country AI Path

    MillenniumDawn/Millennium-Dawn

    Build or standardise one country's TAGaibehavior AI path game rule — write the rule options and loc, wire the global flags, own the focus weights, run the AI hardening pass, and open the PR.

    137 GitHub stars~2.5k tokensUpdated today
    Auto-check passed

  • Md Tick Profiler

    MillenniumDawn/Millennium-Dawn

    Profile MD's recurring per-tick scripted workload (the daily/weekly/monthly onaction hooks and everything they run) as a flamegraph sized by script ops, plus a text report.

    137 GitHub stars~816 tokensUpdated today
    Auto-check: notes

  • Add Leader

    MillenniumDawn/Millennium-Dawn

    Scaffold generals, field marshals, and admirals for a country using the MD count formulas and region skill ranges, writing character and recruitcharacter entries.

    137 GitHub stars~717 tokensUpdated today
    Auto-check passed

  • Additional Income

    MillenniumDawn/Millennium-Dawn

    Wire a country-specific income or expense stream into the MD money system: calculation block, hidden tooltip idea, loc key, and granting effect.

    137 GitHub stars~664 tokensUpdated today
    Auto-check passed

  • Dev Diary Mdx

    MillenniumDawn/Millennium-Dawn

    Convert a Millennium Dawn dev diary .docx into a publish-ready .mdx for the docs site: frontmatter, headers, and images placed in reading order, with the author's voice preserved.

    137 GitHub stars~958 tokensUpdated today
    Auto-check passed

  • Fix Issue

    MillenniumDawn/Millennium-Dawn

    Find an actionable open GitHub issue (or take an issue number or quoted task), implement the fix, commit, update the changelog, and open or update a PR.

    137 GitHub stars~988 tokensUpdated today
    Auto-check passed

Questions about Validate

What does Validate do?

Run the Millennium Dawn validation tools and summarize errors by category as file:line. Validate is an agent skill from MillenniumDawn/Millennium-Dawn. Run the Millennium Dawn validation tools and summarize errors by category as file:line.

When should I use Validate?

Validate fits situations like: explicitly asks to validate.

How do I install Validate in Claude Code?

Run `npx skills add MillenniumDawn/Millennium-Dawn --skill validate -a claude-code`. Or copy the skill folder (.claude/skills/validate in MillenniumDawn/Millennium-Dawn) into .claude/skills/validate in your project. Claude Code loads it when a task matches its description.

How do I install Validate in Codex?

Run `npx skills add MillenniumDawn/Millennium-Dawn --skill validate -a codex`. Or copy the skill folder (.claude/skills/validate in MillenniumDawn/Millennium-Dawn) into .agents/skills/validate in your project. Codex loads it when a task matches its description.

Can I use Validate 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 MillenniumDawn/Millennium-Dawn --skill validate -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/validate, .gemini/skills/validate, .github/skills/validate and .opencode/skills/validate in your project.

What does Validate need to run?

Going by SKILL.md and its folder, Validate needs the command-line tools its instructions call (python3). Our summary lists: Python 3.

Does Validate 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 Validate 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 Validate use?

Validate is published under the CC-BY-SA-4.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Validate use?

About 252 tokens (SKILL.md is roughly 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 Validate?

Skills that share tags, products or a category with Validate: Error Handling (affaan-m/ECC, 274k stars), Error Handling (thedaviddias/Front-End-Checklist, 74k stars), Error Handling (affaan-m/ECC, 274k stars) and N8n Error Handling (sickn33/agentic-awesome-skills, 47k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Validate?

MillenniumDawn (a GitHub organization) maintains it in MillenniumDawn/Millennium-Dawn, which has 137 GitHub stars. The repository holds 24 skills in this directory. The repository was last updated on October 7, 2026.

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