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Agent skill

Develop Fingerprint

by cha0upup in cha0upup/LeoAI

当用户希望在平台侧编写、生成、完善、检查、保存、更新或删除指纹规则时使用。指纹由 NetworkProbe 采集证据，服务侧使用声明式 rule.match 判定。

GPL-3.0Auto-check passed

Install Develop Fingerprint

skills CLI
$ npx skills add cha0upup/LeoAI --skill develop-fingerprint -a claude-code

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

GitHub CLI
$ gh skill install cha0upup/LeoAI develop-fingerprint --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/cha0upup/LeoAI.git skills-src && mkdir -p .claude/skills && cp -r skills-src/root/skills/platform/develop-fingerprint .claude/skills/develop-fingerprint && 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
develop-fingerprint
GitHub stars
313
Token cost
~382 tokens
SKILL.md length
52 words
Files
2
Skills in repo
4
Repo updated
First seen
Licence
GPL-3.0

At a glance

当用户希望在平台侧编写、生成、完善、检查、保存、更新或删除指纹规则时使用。指纹由 NetworkProbe 采集证据，服务侧使用声明式 rule.match 判定。

  • Works in 5 steps: 查询全部或同 ID 的现有 HTTP 指纹。 → 设计无副作用的 rule.requests。 → 使用声明式 rule.match 表达命中条件，不生成 JavaScript。 → …
  • SKILL.md covers 工作流程 and 规则结构
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Develop Fingerprint is an agent skill from cha0upup/LeoAI. 当用户希望在平台侧编写、生成、完善、检查、保存、更新或删除指纹规则时使用。指纹由 NetworkProbe 采集证据，服务侧使用声明式 rule.match 判定。

Its SKILL.md is about 380 tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `manifest.yaml`).

The repository describes itself as: AI 驱动的后渗透综合管理平台，深度集成 LLM Agent，开箱即用。 The licence is GPL-3.0.

Example prompts

  • “/develop-fingerprint”

Workflow steps

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

  1. 查询全部或同 ID 的现有 HTTP 指纹。
  2. 设计无副作用的 rule.requests。
  3. 使用声明式 rule.match 表达命中条件，不生成 JavaScript。
  4. 保存前确认 userId、名称、版本和覆盖风险。
  5. 保存后报告 fingerprintId，并建议在授权目标上验证误报与漏报。

What it can do on your machine

Read from SKILL.md and the folder at commit f821bc2. 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 json).

    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

Develop Fingerprint loads about 382 tokens when it runs. Until then it costs about 26 tokens; SKILL.md has 52 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
~382

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 cha0upup/LeoAI at commit f821bc2, republished under its GPL-3.0 licence (© cha0upup). 52 words, ~382 tokens.

Download SKILL.mdSave it as .claude/skills/develop-fingerprint/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
develop-fingerprint
description
当用户希望在平台侧编写、生成、完善、检查、保存、更新或删除指纹规则时使用。指纹由 NetworkProbe 采集证据，服务侧使用声明式 rule.match 判定。

开发平台侧指纹

所有指纹管理动作必须通过 FingerprintTools 完成，不直接读写 VFS 文件。

可用工具：listFingerprints()、getFingerprintById(fingerprintId)、saveFingerprint(...)、deleteFingerprint(...)。

工作流程

  1. 查询全部或同 ID 的现有 HTTP 指纹。
  2. 设计无副作用的 rule.requests。
  3. 使用声明式 rule.match 表达命中条件，不生成 JavaScript。
  4. 保存前确认 userId、名称、版本和覆盖风险。
  5. 保存后报告 fingerprintId，并建议在授权目标上验证误报与漏报。

规则结构

json
{
  "name": "web-server",
  "protocol": "http",
  "tags": ["web", "server"],
  "info": {"version": "1.0"},
  "rule": {
    "requests": [
      {"method": "GET", "path": "/", "timeout": 3000, "maxBodyBytes": 8192}
    ],
    "match": {
      "any": [
        {"field": "headers", "operator": "contains", "value": "nginx"},
        {"field": "body", "operator": "contains", "value": "welcome to nginx"}
      ]
    }
  }
}

指纹文件只保存名称、协议、标签、识别规则及规则元信息。info 仅支持 version、author、description、remark，用于描述规则适用版本、作者、识别方法和备注。漏洞情报、CVE、风险等级、利用资料等应由独立流程管理，不写入指纹文件。

rule.requests 必须为非空数组。HTTP 请求支持 method、path/uri、headers、body、timeout、charset、maxBodyBytes。证据最多读取 8192 字节。

rule.match 支持：

  • 组合：all、any、not
  • 字段：status、body、headers、raw、bodyLength、truncated、error、errorCode
  • 操作：contains、notcontains、equals、in、exists、startswith、endswith
  • 多请求规则用 request 指定从 0 开始的请求序号
  • 字符串默认忽略大小写；需要区分大小写时设置 "ignoreCase": false

优先组合两个以上稳定证据，避免只靠宽泛关键词。探测请求不得修改目标状态，除非用户明确授权且任务确有必要。

© cha0upup, GPL-3.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file in root/skills/platform/develop-fingerprint of cha0upup/LeoAI.

  • SKILL.md
  • manifest.yaml

Open the folder on GitHubat commit f821bc2

Compare with similar skills

Develop Fingerprint 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.

Develop Fingerprint compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Develop Fingerprint this skillcha0upup/LeoAI313—~382Automated safety check: PassGPL-3.0
MCP Developmentcoollabsio/coolify63k1 repos~949Automated safety check: PassMIT
Game Developmentsickn33/agentic-awesome-skills47k1 repos~1.3kAutomated safety check: PassMIT
Twenty App Entity Developmenttwentyhq/twenty58k—~1.8kAutomated safety check: PassCustom licence
Developmentccusage/ccusage19k—~433Automated safety check: PassCustom licence
Frontend DevelopmentOpenHands/OpenHands90k—~324Automated safety check: PassMIT

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  • Develop Disguise

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Questions about Develop Fingerprint

What does Develop Fingerprint do?

当用户希望在平台侧编写、生成、完善、检查、保存、更新或删除指纹规则时使用。指纹由 NetworkProbe 采集证据，服务侧使用声明式 rule.match 判定。. Develop Fingerprint is an agent skill from cha0upup/LeoAI.

How do I install Develop Fingerprint in Claude Code?

Run `npx skills add cha0upup/LeoAI --skill develop-fingerprint -a claude-code`. Or copy the skill folder (root/skills/platform/develop-fingerprint in cha0upup/LeoAI) into .claude/skills/develop-fingerprint in your project. Claude Code loads it when a task matches its description.

How do I install Develop Fingerprint in Codex?

Run `npx skills add cha0upup/LeoAI --skill develop-fingerprint -a codex`. Or copy the skill folder (root/skills/platform/develop-fingerprint in cha0upup/LeoAI) into .agents/skills/develop-fingerprint in your project. Codex loads it when a task matches its description.

Can I use Develop Fingerprint 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 cha0upup/LeoAI --skill develop-fingerprint -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/develop-fingerprint, .gemini/skills/develop-fingerprint, .github/skills/develop-fingerprint and .opencode/skills/develop-fingerprint in your project.

What does Develop Fingerprint need to run?

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

Does Develop Fingerprint 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 Develop Fingerprint 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 Develop Fingerprint use?

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

How many tokens does Develop Fingerprint use?

About 382 tokens (SKILL.md is roughly 1.5k 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 Develop Fingerprint?

Skills that share tags, products or a category with Develop Fingerprint: MCP Development (coollabsio/coolify, 63k stars), Game Development (sickn33/agentic-awesome-skills, 47k stars), Twenty App Entity Development (twentyhq/twenty, 58k stars) and Development (ccusage/ccusage, 19k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Develop Fingerprint?

cha0upup (a GitHub user) maintains it in cha0upup/LeoAI, which has 313 GitHub stars. The repository holds 4 skills in this directory. The repository was last updated on September 30, 2026.

Source: cha0upup/LeoAI on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.