Agent Builder
shareAI-lab/learn-claude-code
Design and build AI agents for any domain. An agent skill from shareAI-lab/learn-claude-code.
Build a bounded Agent Skill catalog across explicit discovery scopes and report collisions before loading instruction bodies.
Install Skill Catalog Builder
$ npx skills add rohitg00/ai-engineering-from-scratch --skill skill-catalog-builder -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install rohitg00/ai-engineering-from-scratch skill-catalog-builder --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/rohitg00/ai-engineering-from-scratch.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-srcUse ~/.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/
Install the "skill-catalog-builder" agent skill from https://github.com/rohitg00/ai-engineering-from-scratch/tree/main/phases/13-tools-and-protocols/24-skill-discovery-and-progressive-disclosure/outputs/skill-catalog-builder into .claude/skills/skill-catalog-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-catalog-builder", 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 install https://github.com/rohitg00/ai-engineering-from-scratch/tree/main/phases/13-tools-and-protocols/24-skill-discovery-and-progressive-disclosure/outputs/skill-catalog-builderType 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.
$ npx skills add rohitg00/ai-engineering-from-scratch --skill skill-catalog-builder -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install rohitg00/ai-engineering-from-scratch skill-catalog-builder --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rohitg00/ai-engineering-from-scratch.git skills-src && mkdir -p .agents/skills && cp -r skills-src/phases/13-tools-and-protocols/24-skill-discovery-and-progressive-disclosure/outputs/skill-catalog-builder .agents/skills/skill-catalog-builder && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "skill-catalog-builder" agent skill from https://github.com/rohitg00/ai-engineering-from-scratch/tree/main/phases/13-tools-and-protocols/24-skill-discovery-and-progressive-disclosure/outputs/skill-catalog-builder into .agents/skills/skill-catalog-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-catalog-builder", 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.
$ npx skills add rohitg00/ai-engineering-from-scratch --skill skill-catalog-builder -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install rohitg00/ai-engineering-from-scratch skill-catalog-builder --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rohitg00/ai-engineering-from-scratch.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/phases/13-tools-and-protocols/24-skill-discovery-and-progressive-disclosure/outputs/skill-catalog-builder .cursor/skills/skill-catalog-builder && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "skill-catalog-builder" agent skill from https://github.com/rohitg00/ai-engineering-from-scratch/tree/main/phases/13-tools-and-protocols/24-skill-discovery-and-progressive-disclosure/outputs/skill-catalog-builder into .cursor/skills/skill-catalog-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-catalog-builder", 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 https://github.com/rohitg00/ai-engineering-from-scratch.git --path phases/13-tools-and-protocols/24-skill-discovery-and-progressive-disclosure/outputs/skill-catalog-builder--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add rohitg00/ai-engineering-from-scratch --skill skill-catalog-builder -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install rohitg00/ai-engineering-from-scratch skill-catalog-builder --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rohitg00/ai-engineering-from-scratch.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/phases/13-tools-and-protocols/24-skill-discovery-and-progressive-disclosure/outputs/skill-catalog-builder .gemini/skills/skill-catalog-builder && rm -rf skills-srcUse ~/.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/
Install the "skill-catalog-builder" agent skill from https://github.com/rohitg00/ai-engineering-from-scratch/tree/main/phases/13-tools-and-protocols/24-skill-discovery-and-progressive-disclosure/outputs/skill-catalog-builder into .gemini/skills/skill-catalog-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-catalog-builder", 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.
$ gh skill install rohitg00/ai-engineering-from-scratch skill-catalog-builderInstalls 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).
$ npx skills add rohitg00/ai-engineering-from-scratch --skill skill-catalog-builder -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/rohitg00/ai-engineering-from-scratch.git skills-src && mkdir -p .github/skills && cp -r skills-src/phases/13-tools-and-protocols/24-skill-discovery-and-progressive-disclosure/outputs/skill-catalog-builder .github/skills/skill-catalog-builder && rm -rf skills-srcUse ~/.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/
Install the "skill-catalog-builder" agent skill from https://github.com/rohitg00/ai-engineering-from-scratch/tree/main/phases/13-tools-and-protocols/24-skill-discovery-and-progressive-disclosure/outputs/skill-catalog-builder into .github/skills/skill-catalog-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-catalog-builder", 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.
$ npx skills add rohitg00/ai-engineering-from-scratch --skill skill-catalog-builder -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install rohitg00/ai-engineering-from-scratch skill-catalog-builder --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rohitg00/ai-engineering-from-scratch.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/phases/13-tools-and-protocols/24-skill-discovery-and-progressive-disclosure/outputs/skill-catalog-builder .opencode/skills/skill-catalog-builder && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "skill-catalog-builder" agent skill from https://github.com/rohitg00/ai-engineering-from-scratch/tree/main/phases/13-tools-and-protocols/24-skill-discovery-and-progressive-disclosure/outputs/skill-catalog-builder into .opencode/skills/skill-catalog-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-catalog-builder", 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
skill-catalog-builder- GitHub stars
- 66k
- Token cost
- ~249 tokens
- SKILL.md length
- 106 words
- Files
- 4 (incl. scripts, references, assets)
- Skills in repo
- 16
- Repo updated
- First seen
- Licence
- MIT
At a glance
Build a bounded Agent Skill catalog across explicit discovery scopes and report collisions before loading instruction bodies.
- Works in 5 steps: Read references/discovery-contract.md. → Review the example host policy in… → Run python3 scripts/build_catalog.py… → …
- 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 rohitg00/ai-engineering-from-scratch. Build a bounded Agent Skill catalog across explicit discovery scopes and report collisions before loading instruction bodies.
Its SKILL.md is about 250 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. The repository describes itself as: Learn it. Build it. Ship it for others. 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.
- Read references/discovery-contract.md.
- Review the example host policy in assets/scope-policy.json; do not assume its order is universal.
- Run python3 scripts/build_catalog.py project=PATH user=PATH with scopes listed from highest to lowest precedence.
- Inspect the JSON collisions and omitted arrays before activating a skill.
- Load only the selected SKILL.md body. Load a direct reference only when that body names it.
What it can do on your machine
Read from SKILL.md and the folder at commit cdfd9df. 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 249 tokens when it runs, and up to ~409 if it reads all its reference files. Until then it costs about 37 tokens; SKILL.md has 106 words of instructions outside code blocks.
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 rohitg00/ai-engineering-from-scratch at commit cdfd9df, republished under its MIT licence (© rohitg00). 106 words, ~249 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
- Build a bounded Agent Skill catalog across explicit discovery scopes and report collisions before loading instruction bodies.
- license
- MIT
- metadata.lesson
- 24
Skill catalog builder
Use this skill when an agent host needs deterministic discovery across more than one skill directory.
- Read
references/discovery-contract.md. - Review the example host policy in
assets/scope-policy.json; do not assume its order is universal. - Run
python3 scripts/build_catalog.py project=PATH user=PATHwith scopes listed from highest to lowest precedence. - Inspect the JSON
collisionsandomittedarrays before activating a skill. - Load only the selected SKILL.md body. Load a direct reference only when that body names it.
Never execute a bundled script during discovery. Never choose an equal-precedence duplicate by incidental filesystem order.
Return the catalog budget, selected entries, collision resolutions, and omissions.
© rohitg00, 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 rohitg00/ai-engineering-from-scratch.
- SKILL.md
- assets/scope-policy.json
- references/discovery-contract.md
- scripts/build_catalog.py
Open the folder on GitHubat commit cdfd9df
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 | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Skill Catalog Builder this skillrohitg00/ai-engineering-from-scratch | 66k | — | ~249 | Automated safety check: Pass | MIT | |
| Agent BuildershareAI-lab/learn-claude-code | 78k | 5 repos | ~1.2k | Automated safety check: Pass | MIT | |
| Add Uint Supportpytorch/pytorch | 104k | 2 repos | ~2.3k | Automated safety check: Pass | Custom licence | |
| LLM Benchmarking with lm-evaluation-harnessOrchestra-Research/AI-Research-SKILLs | 13k | 8 repos | ~3k | Automated safety check: Pass | MIT | |
| Segment Anything Model GuideOrchestra-Research/AI-Research-SKILLs | 13k | 8 repos | ~3.3k | Automated safety check: Pass | MIT | |
| 1passwordtrpc-group/trpc-agent-go | 1.9k | 14 repos | ~656 | Automated safety check: Pass | Apache-2.0 |
Similar skills
Add Uint Support
pytorch/pytorch
Add unsigned integer (uint) type support to PyTorch operators by updating ATDISPATCH macros.
LLM Benchmarking with lm-evaluation-harness
Orchestra-Research/AI-Research-SKILLs
Runs lm-evaluation-harness to benchmark language models on academic suites such as MMLU, GSM8K and HumanEval, compare models and track training checkpoints.
Segment Anything Model Guide
Orchestra-Research/AI-Research-SKILLs
Guide to using Meta's Segment Anything Model for zero-shot image segmentation with point, box or mask prompts, or automatic mask generation.
1password
trpc-group/trpc-agent-go
Set up and use 1Password CLI (op). An agent skill from trpc-group/trpc-agent-go.
Planning With Files
jarrodwatts/claude-code-config
Transforms workflow to use Manus-style persistent markdown files for planning, progress tracking, and knowledge storage.
More from rohitg00/ai-engineering-from-scratch
All 16 skills in this repoSkill Release Gate
rohitg00/ai-engineering-from-scratch
Evaluates an Agent Skill bundle before release for structure, trigger quality, artifact improvement, script correctness, safety, installed-tree integrity and host portability.
AI Engineering Placement Quiz
rohitg00/ai-engineering-from-scratch
Runs a 10-question quiz across five areas to place a learner in the AI Engineering from Scratch curriculum, so they skip what they already know.
AI Engineering Project Tutor
rohitg00/ai-engineering-from-scratch
Tutors a learner through one stage of a hands-on AI engineering project per session: lesson, prediction, code, grader run and reflection, with hints but never full solutions.
AI Engineering Phase Quiz
rohitg00/ai-engineering-from-scratch
Quizzes you on a completed phase of the AI Engineering from Scratch course, taking a phase number or name and mapping it to that phase's directory.
Claude Certification Tutor
rohitg00/ai-engineering-from-scratch
Guides a learner through one of four independent Claude certification tracks with onboarding, lessons, practice labs, mock exams and remediation.
AI Engineering Course Guide
rohitg00/ai-engineering-from-scratch
Routes a topic, question or bug to the exact lessons in the AI Engineering from Scratch curriculum and suggests the next command to run.
Related
Categories
Questions about Skill Catalog Builder
What does Skill Catalog Builder do?
Build a bounded Agent Skill catalog across explicit discovery scopes and report collisions before loading instruction bodies. Skill Catalog Builder is an agent skill from rohitg00/ai-engineering-from-scratch. Build a bounded Agent Skill catalog across explicit discovery scopes and report collisions before loading instruction bodies.
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 rohitg00/ai-engineering-from-scratch --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 rohitg00/ai-engineering-from-scratch) 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 rohitg00/ai-engineering-from-scratch --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 rohitg00/ai-engineering-from-scratch) 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 rohitg00/ai-engineering-from-scratch --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 249 tokens (SKILL.md is roughly 996 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 160 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: Agent Builder (shareAI-lab/learn-claude-code, 78k stars), Add Uint Support (pytorch/pytorch, 104k stars), LLM Benchmarking with lm-evaluation-harness (Orchestra-Research/AI-Research-SKILLs, 13k stars) and Segment Anything Model Guide (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?
rohitg00 (a GitHub user) maintains it in rohitg00/ai-engineering-from-scratch, which has 65,983 GitHub stars. The repository holds 16 skills in this directory. The repository was last updated on October 9, 2026.
Source: rohitg00/ai-engineering-from-scratch on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.