Agent skill

Validate Signature

L5-L8 函數簽名驗證 - 檢查參數、返回值、類型提示、文檔字符串. An agent skill from peijun1700/bluemouse.

AGPL-3.0Auto-check: notesDevelopment

Install Validate Signature

skills CLI

$ npx skills add peijun1700/bluemouse --skill validate-signature -a claude-code

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

GitHub CLI

$ gh skill install peijun1700/bluemouse validate-signature --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/peijun1700/bluemouse.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/validate-signature .claude/skills/validate-signature && 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/

Paste into Claude Code

Install the "validate-signature" agent skill from https://github.com/peijun1700/bluemouse/tree/main/.claude/skills/validate-signature into .claude/skills/validate-signature/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "validate-signature", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/peijun1700/bluemouse/tree/main/.claude/skills/validate-signature

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add peijun1700/bluemouse --skill validate-signature -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install peijun1700/bluemouse validate-signature --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/peijun1700/bluemouse.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/validate-signature .agents/skills/validate-signature && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "validate-signature" agent skill from https://github.com/peijun1700/bluemouse/tree/main/.claude/skills/validate-signature into .agents/skills/validate-signature/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "validate-signature", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add peijun1700/bluemouse --skill validate-signature -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install peijun1700/bluemouse validate-signature --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/peijun1700/bluemouse.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/validate-signature .cursor/skills/validate-signature && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "validate-signature" agent skill from https://github.com/peijun1700/bluemouse/tree/main/.claude/skills/validate-signature into .cursor/skills/validate-signature/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "validate-signature", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/peijun1700/bluemouse.git --path .claude/skills/validate-signature

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add peijun1700/bluemouse --skill validate-signature -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install peijun1700/bluemouse validate-signature --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/peijun1700/bluemouse.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/validate-signature .gemini/skills/validate-signature && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "validate-signature" agent skill from https://github.com/peijun1700/bluemouse/tree/main/.claude/skills/validate-signature into .gemini/skills/validate-signature/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "validate-signature", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install peijun1700/bluemouse validate-signature

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add peijun1700/bluemouse --skill validate-signature -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/peijun1700/bluemouse.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/validate-signature .github/skills/validate-signature && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "validate-signature" agent skill from https://github.com/peijun1700/bluemouse/tree/main/.claude/skills/validate-signature into .github/skills/validate-signature/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "validate-signature", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add peijun1700/bluemouse --skill validate-signature -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install peijun1700/bluemouse validate-signature --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/peijun1700/bluemouse.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/validate-signature .opencode/skills/validate-signature && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "validate-signature" agent skill from https://github.com/peijun1700/bluemouse/tree/main/.claude/skills/validate-signature into .opencode/skills/validate-signature/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "validate-signature", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: validate-signature
GitHub stars: 109
Token cost: ~923 tokens
SKILL.md length: 156 words
Files: 2
Skills in repo: 5
Repo updated: Jan 29, 2026
First seen: Oct 7, 2026
Licence: AGPL-3.0

At a glance

L5-L8 函數簽名驗證 - 檢查參數、返回值、類型提示、文檔字符串. An agent skill from peijun1700/bluemouse.

Works in 2 steps: AI-Guided Validation → Script Execution
Tasks that involve Technical documentation
SKILL.md covers Two Ways to Use, L5: 參數檢查, L6: 返回值檢查 and L7: 類型提示檢查, plus 3 more sections
Runs Python scripts from its folder; calls python3

What it does

Validate Signature is an agent skill from peijun1700/bluemouse. L5-L8 函數簽名驗證 - 檢查參數、返回值、類型提示、文檔字符串。 BlueMouse 17-Layer Validation Group 2。 Triggers: "signature", "參數檢查", "type hints", "docstring"

Its SKILL.md is about 920 tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `validator.py`).

It sits in Development, covering Technical documentation and Type safety. The licence is AGPL-3.0.

When your agent uses it

Tasks that involve Technical documentation
Tasks that involve Type safety

Example prompts

“signature”
“type hints”
“docstring”
“/validate-signature”

Requirements

Python 3
Pre-approved tools (allowed-tools): Read, Bash

Workflow steps

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

AI-Guided Validation
Script Execution

What it can do on your machine

Read from SKILL.md and the folder at commit 4f32ef0. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
- Read
- Bash
From allowed-tools in the SKILL.md frontmatter.
Runs code
Ships script files (Python), which the agent can run.
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 Signature loads about 923 tokens when it runs. Until then it costs about 38 tokens; SKILL.md has 156 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~38
When it runs · the whole SKILL.md, loaded when a task matches: ~923

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: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
```
allowed-tools: Read, Bash
```

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 peijun1700/bluemouse at commit 4f32ef0, republished under its AGPL-3.0 licence (© peijun1700). 156 words, ~923 tokens.

Download SKILL.mdSave it as .claude/skills/validate-signature/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.

name: validate-signature
description: L5-L8 函數簽名驗證 - 檢查參數、返回值、類型提示、文檔字符串。 BlueMouse 17-Layer Validation Group 2。 Triggers: "signature", "參數檢查", "type hints", "docstring"
allowed-tools: Read, Bash
user-invocable: true
context: fork

Validate Signature Skill (L5-L8)

BlueMouse 17-Layer Validation System - Group 2: 函數簽名驗證

Two Ways to Use

1. AI-Guided Validation

Follow the checklist below to analyze code.

2. Script Execution

bash

python3 .claude/skills/validate-signature/validator.py myfile.py
python3 .claude/skills/validate-signature/validator.py --spec spec.json myfile.py

L5-L8 Validation Checklist

L5: 參數檢查

What: Function has parameters (or matches spec if provided)

How:

python

func = functions[0]  # Check first function
actual_params = set(arg.arg for arg in func.args.args)

if spec and 'inputs' in spec:
    expected_params = set(spec['inputs'])
    passed = expected_params == actual_params
else:
    passed = True  # No spec, just report count

Pass:

With spec: "參數與規格匹配"
Without spec: "函數有 N 個參數"

Fail: "參數不匹配: 期望 {expected}, 實際 {actual}"

L6: 返回值檢查

What: Function has explicit return statement

How:

python

has_return = any(
    isinstance(node, ast.Return)
    for node in ast.walk(func)
)

Pass: "函數有返回值" Fail: "函數缺少返回值"

Examples:

python

# ✅ PASS
def process(data):
    return data * 2

# ❌ FAIL
def process(data):
    print(data)  # No return

L7: 類型提示檢查

What: Type hints coverage ≥80% AND has return type annotation

How:

python

params_with_hints = sum(1 for arg in func.args.args if arg.annotation)
total_params = len(func.args.args)
has_return_hint = func.returns is not None

if total_params > 0:
    coverage = params_with_hints / total_params
else:
    coverage = 1.0 if has_return_hint else 0.0

passed = coverage >= 0.8 and has_return_hint

Pass: "類型提示覆蓋率: {coverage}%" Fail: "類型提示不足: {coverage}%"

Coverage Examples:

Params	Annotated	Coverage	Return Type	Result
5	5	100%	✅	✅ PASS
5	4	80%	✅	✅ PASS
5	3	60%	✅	❌ FAIL
5	5	100%	❌	❌ FAIL

Examples:

python

# ✅ PASS: 100% coverage + return type
def process(data: list, count: int) -> dict:
    return {}

# ❌ FAIL: Missing return type
def process(data: list, count: int):
    return {}

# ❌ FAIL: <80% coverage
def process(data, count: int) -> dict:  # 50%
    return {}

L8: 文檔字符串檢查

What: Function has meaningful docstring (>10 characters)

How:

python

docstring = ast.get_docstring(func)
passed = docstring and len(docstring) > 10

Pass: "有完整文檔字符串 ({length} 字符)" Fail: "缺少或文檔字符串過短"

Examples:

python

# ✅ PASS: >10 characters
def process(data):
    """Process input data and return results."""
    return data

# ❌ FAIL: Too short (≤10 chars)
def process(data):
    """Process"""
    return data

# ❌ FAIL: No docstring
def process(data):
    return data

Output Format

==================================================
L5-L8: 函數簽名驗證
==================================================

Status: ✅ PASSED / ❌ FAILED
Score: X/100 (N/4 layers)

✅/❌ L5: 參數檢查 - [message]
✅/❌ L6: 返回值檢查 - [message]
✅/❌ L7: 類型提示檢查 - [message]
✅/❌ L8: 文檔字符串檢查 - [message]

Skill	Layers
`/validate-17-layers`	L1-L17 (完整)
`/validate-syntax`	L1-L4
`/validate-signature`	L5-L8
`/validate-dependencies`	L9-L12
`/validate-logic`	L13-L17

Part of BlueMouse 17-Layer Validation System

Files

SKILL.md and 1 other file in .claude/skills/validate-signature of peijun1700/bluemouse.

SKILL.md
validator.py

Open the folder on GitHubat commit 4f32ef0

Compare with similar skills

Validate Signature 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 Signature compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Validate Signature this skillpeijun1700/bluemouse	109	—	~923	Automated safety check: Notes	AGPL-3.0	8 mo ago
Meilisearch PHP PHPDoc Writermeilisearch/meilisearch-php	758	—	~569	Automated safety check: Pass	MIT	3 days ago
Diataxis Docs Writercalf-ai/calfkit-sdk	149	1 repos	~3k	Automated safety check: Pass	Apache-2.0	1 mo ago
Repo Guardsimovilab/databus	101	—	~1.3k	Automated safety check: Pass	Apache-2.0	1 mo ago
Adk Stylegoogle/adk-python	22k	—	~769	Automated safety check: Pass	Apache-2.0	today
Implement Widget Frontendcryptomilk/hass-eink-dashboard	116	—	~3.3k	Automated safety check: Pass	Apache-2.0	5 days ago

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Questions about Validate Signature

What does Validate Signature do?

L5-L8 函數簽名驗證 - 檢查參數、返回值、類型提示、文檔字符串. An agent skill from peijun1700/bluemouse. Validate Signature is an agent skill from peijun1700/bluemouse.

When should I use Validate Signature?

Validate Signature fits situations like: tasks that involve Technical documentation; tasks that involve Type safety.

How do I install Validate Signature in Claude Code?

Run `npx skills add peijun1700/bluemouse --skill validate-signature -a claude-code`. Or copy the skill folder (.claude/skills/validate-signature in peijun1700/bluemouse) into .claude/skills/validate-signature in your project. Claude Code loads it when a task matches its description.

How do I install Validate Signature in Codex?

Run `npx skills add peijun1700/bluemouse --skill validate-signature -a codex`. Or copy the skill folder (.claude/skills/validate-signature in peijun1700/bluemouse) into .agents/skills/validate-signature in your project. Codex loads it when a task matches its description.

Can I use Validate Signature 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 peijun1700/bluemouse --skill validate-signature -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-signature, .gemini/skills/validate-signature, .github/skills/validate-signature and .opencode/skills/validate-signature in your project.

What does Validate Signature need to run?

Going by SKILL.md and its folder, Validate Signature needs Python for the scripts in its folder and the command-line tools its instructions call (python3). Our summary lists: Python 3. Its frontmatter pre-approves these tools: Read, Bash.

Does Validate Signature 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 Signature safe to install?

Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does Validate Signature use?

Validate Signature is published under the AGPL-3.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Validate Signature use?

About 923 tokens (SKILL.md is roughly 3.7k 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 Validate Signature?

Skills that share tags, products or a category with Validate Signature: Meilisearch PHP PHPDoc Writer (meilisearch/meilisearch-php, 758 stars), Diataxis Docs Writer (calf-ai/calfkit-sdk, 149 stars), Repo Guard (simovilab/databus, 101 stars) and Adk Style (google/adk-python, 22k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Validate Signature?

peijun1700 (a GitHub user) maintains it in peijun1700/bluemouse, which has 109 GitHub stars. The repository holds 5 skills in this directory. The repository was last updated on January 29, 2026.

Source: peijun1700/bluemouse on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Validate Signature

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Validate Signature Skill (L5-L8)

Two Ways to Use

1. AI-Guided Validation

2. Script Execution

L5-L8 Validation Checklist

L5: 參數檢查

L6: 返回值檢查

L7: 類型提示檢查

L8: 文檔字符串檢查

Output Format

Related Skills

Files

Compare with similar skills

Similar skills

More from peijun1700/bluemouse

Related

Questions about Validate Signature