Agent skill

Skill Catalog Builder

by fancyboi999 in fancyboi999/ai-engineering-from-scratch-zh

在明确的发现 scope 中构建受限的 Agent Skill 目录,并在加载指令正文前报告冲突. An agent skill from fancyboi999/ai-engineering-from-scratch-zh.

MITAuto-check passedAI & LLM Engineering

Install Skill Catalog Builder

skills CLI
$ npx skills add fancyboi999/ai-engineering-from-scratch-zh --skill skill-catalog-builder -a claude-code

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

GitHub CLI
$ gh skill install fancyboi999/ai-engineering-from-scratch-zh skill-catalog-builder --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/fancyboi999/ai-engineering-from-scratch-zh.git skills-src && mkdir -p .claude/skills && cp -r skills-src/phases/13-tools-and-protocols/24-skill-discovery-and-progressive-disclosure/outputs/skill-catalog-builder .claude/skills/skill-catalog-builder && 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
skill-catalog-builder
GitHub stars
1.2k
Token cost
~133 tokens
SKILL.md length
38 words
Files
4 (incl. scripts, references, assets)
Skills in repo
14
Repo updated
First seen
Licence
MIT

At a glance

在明确的发现 scope 中构建受限的 Agent Skill 目录,并在加载指令正文前报告冲突. An agent skill from fancyboi999/ai-engineering-from-scratch-zh.

  • Works in 5 steps: 阅读 references/discovery-contract.md。 → 查看 assets/scope-policy.json… → 以从最高到最低的优先级列出 scope,运行 python3… → …
  • AI & LLM Engineering work in your project
  • Runs Python scripts from its folder; calls python3

What it does

Skill Catalog Builder is an agent skill from fancyboi999/ai-engineering-from-scratch-zh. 在明确的发现 scope 中构建受限的 Agent Skill 目录,并在加载指令正文前报告冲突。

Its SKILL.md is about 130 tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including scripts, reference files and assets (for example `assets/scope-policy.json`, `references/discovery-contract.md` and `scripts/build_catalog.py`).

It sits in AI & LLM Engineering. It works with Python. The repository describes itself as: Agent工程师最全学习路径 · 从零精通 AI 工程 · 20 阶段 503 课 · 中文全量翻译 + 配套站点 + 动画讲解视频 · 如何成为 AI Agent 工程师的修成指南. The licence is MIT.

When your agent uses it

  • AI & LLM Engineering work in your project

Example prompts

  • “/skill-catalog-builder”

Requirements

  • Python 3

Workflow steps

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

  1. 阅读 references/discovery-contract.md。
  2. 查看 assets/scope-policy.json 中的宿主策略示例;不要假设其顺序具有通用性。
  3. 以从最高到最低的优先级列出 scope,运行 python3 scripts/build_catalog.py project=PATH user=PATH。
  4. 激活 skill 前检查 JSON 的 collisions 和 omitted 数组。
  5. 只加载选中的 SKILL.md 正文;仅当正文点名时才加载直接引用。

What it can do on your machine

Read from SKILL.md and the folder at commit 94b9888. 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

    Ships 1 file in scripts/ (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

Skill Catalog Builder loads about 133 tokens when it runs, and up to ~280 if it reads all its reference files. Until then it costs about 18 tokens; SKILL.md has 38 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~18
When it runs · the whole SKILL.md, loaded when a task matches
~133
With references · SKILL.md plus every file in references/, read only if the agent opens them
~280

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); the scripts in this folder are not scanned.

SKILL.md

The full file from fancyboi999/ai-engineering-from-scratch-zh at commit 94b9888, republished under its MIT licence (© fancyboi999). 38 words, ~133 tokens.

Download SKILL.mdSave it as .claude/skills/skill-catalog-builder/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.
name
skill-catalog-builder
description
在明确的发现 scope 中构建受限的 Agent Skill 目录,并在加载指令正文前报告冲突。
license
MIT
metadata.lesson
24

Skill 目录构建器

当 agent 宿主需要跨多个 skill 目录进行确定性发现时使用此 skill。

  1. 阅读 references/discovery-contract.md。
  2. 查看 assets/scope-policy.json 中的宿主策略示例;不要假设其顺序具有通用性。
  3. 以从最高到最低的优先级列出 scope,运行 python3 scripts/build_catalog.py project=PATH user=PATH。
  4. 激活 skill 前检查 JSON 的 collisions 和 omitted 数组。
  5. 只加载选中的 SKILL.md 正文;仅当正文点名时才加载直接引用。

发现期间绝不执行打包脚本;绝不按偶然的文件系统顺序选择同优先级重复项。

返回目录预算、选中条目、冲突解决结果和省略项。

© fancyboi999, MIT. 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 3 other files (scripts, references, assets) in phases/13-tools-and-protocols/24-skill-discovery-and-progressive-disclosure/outputs/skill-catalog-builder of fancyboi999/ai-engineering-from-scratch-zh.

  • SKILL.md
  • assets/scope-policy.json
  • references/discovery-contract.md
  • scripts/build_catalog.py

Open the folder on GitHubat commit 94b9888

Compare with similar skills

Skill Catalog Builder 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.

Skill Catalog Builder compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Skill Catalog Builder this skillfancyboi999/ai-engineering-from-scratch-zh1.2k—~133Automated safety check: PassMIT
LLM Benchmarking with lm-evaluation-harnessOrchestra-Research/AI-Research-SKILLs13k8 repos~3kAutomated safety check: PassMIT
Segment Anything Model GuideOrchestra-Research/AI-Research-SKILLs13k8 repos~3.3kAutomated safety check: PassMIT
Chroma Vector DatabaseOrchestra-Research/AI-Research-SKILLs13k7 repos~2.3kAutomated safety check: PassMIT
CLIP Image-Text MatchingOrchestra-Research/AI-Research-SKILLs13k7 repos~1.7kAutomated safety check: PassMIT
Paddle Design DistributedPaddlePaddle/Paddle24k—~660Automated safety check: PassApache-2.0

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Works with

Questions about Skill Catalog Builder

What does Skill Catalog Builder do?

在明确的发现 scope 中构建受限的 Agent Skill 目录,并在加载指令正文前报告冲突. An agent skill from fancyboi999/ai-engineering-from-scratch-zh. Skill Catalog Builder is an agent skill from fancyboi999/ai-engineering-from-scratch-zh.

When should I use Skill Catalog Builder?

Skill Catalog Builder fits situations like: AI & LLM Engineering work in your project.

How do I install Skill Catalog Builder in Claude Code?

Run `npx skills add fancyboi999/ai-engineering-from-scratch-zh --skill skill-catalog-builder -a claude-code`. Or copy the skill folder (phases/13-tools-and-protocols/24-skill-discovery-and-progressive-disclosure/outputs/skill-catalog-builder in fancyboi999/ai-engineering-from-scratch-zh) into .claude/skills/skill-catalog-builder in your project. Claude Code loads it when a task matches its description.

How do I install Skill Catalog Builder in Codex?

Run `npx skills add fancyboi999/ai-engineering-from-scratch-zh --skill skill-catalog-builder -a codex`. Or copy the skill folder (phases/13-tools-and-protocols/24-skill-discovery-and-progressive-disclosure/outputs/skill-catalog-builder in fancyboi999/ai-engineering-from-scratch-zh) into .agents/skills/skill-catalog-builder in your project. Codex loads it when a task matches its description.

Can I use Skill Catalog Builder 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 fancyboi999/ai-engineering-from-scratch-zh --skill skill-catalog-builder -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/skill-catalog-builder, .gemini/skills/skill-catalog-builder, .github/skills/skill-catalog-builder and .opencode/skills/skill-catalog-builder in your project.

What does Skill Catalog Builder need to run?

Going by SKILL.md and its folder, Skill Catalog Builder needs Python for the scripts in its folder and the command-line tools its instructions call (python3). Our summary lists: Python 3.

Does Skill Catalog Builder 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 Skill Catalog Builder 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. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Skill Catalog Builder use?

Skill Catalog Builder is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Skill Catalog Builder use?

About 133 tokens (SKILL.md is roughly 532 characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 147 tokens, read only when the agent opens those files.

What are the alternatives to Skill Catalog Builder?

Skills that share tags, products or a category with Skill Catalog Builder: LLM Benchmarking with lm-evaluation-harness (Orchestra-Research/AI-Research-SKILLs, 13k stars), Segment Anything Model Guide (Orchestra-Research/AI-Research-SKILLs, 13k stars), Chroma Vector Database (Orchestra-Research/AI-Research-SKILLs, 13k stars) and CLIP Image-Text Matching (Orchestra-Research/AI-Research-SKILLs, 13k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Skill Catalog Builder?

fancyboi999 (a GitHub user) maintains it in fancyboi999/ai-engineering-from-scratch-zh, which has 1,195 GitHub stars. The repository holds 14 skills in this directory. The repository was last updated on October 9, 2026.

Source: fancyboi999/ai-engineering-from-scratch-zh on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.