API Designer
Jeffallan/claude-skills
Designs REST and GraphQL APIs from resource modeling to an OpenAPI 3.1 contract, with versioning, pagination and RFC 7807 error handling.
“Use whenever asked to add, create, or scaffold a CRUD endpoint, router, or entity in this repo's server (create/list/get/update/delete handlers, new `server/routers/<entity>/` or…”
$ npx skills add fosrl/pangolin --skill crud-endpoints -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install fosrl/pangolin crud-endpoints --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/fosrl/pangolin.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/crud-endpoints .claude/skills/crud-endpoints && 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 "crud-endpoints" agent skill from https://github.com/fosrl/pangolin/tree/main/.claude/skills/crud-endpoints into .claude/skills/crud-endpoints/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "crud-endpoints", 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/fosrl/pangolin/tree/main/.claude/skills/crud-endpointsType 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 fosrl/pangolin --skill crud-endpoints -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install fosrl/pangolin crud-endpoints --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/fosrl/pangolin.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/crud-endpoints .agents/skills/crud-endpoints && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "crud-endpoints" agent skill from https://github.com/fosrl/pangolin/tree/main/.claude/skills/crud-endpoints into .agents/skills/crud-endpoints/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "crud-endpoints", 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 fosrl/pangolin --skill crud-endpoints -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install fosrl/pangolin crud-endpoints --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/fosrl/pangolin.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/crud-endpoints .cursor/skills/crud-endpoints && 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 "crud-endpoints" agent skill from https://github.com/fosrl/pangolin/tree/main/.claude/skills/crud-endpoints into .cursor/skills/crud-endpoints/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "crud-endpoints", 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/fosrl/pangolin.git --path .claude/skills/crud-endpoints--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 fosrl/pangolin --skill crud-endpoints -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install fosrl/pangolin crud-endpoints --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/fosrl/pangolin.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/crud-endpoints .gemini/skills/crud-endpoints && 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 "crud-endpoints" agent skill from https://github.com/fosrl/pangolin/tree/main/.claude/skills/crud-endpoints into .gemini/skills/crud-endpoints/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "crud-endpoints", 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 fosrl/pangolin crud-endpointsInstalls 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 fosrl/pangolin --skill crud-endpoints -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/fosrl/pangolin.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/crud-endpoints .github/skills/crud-endpoints && 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 "crud-endpoints" agent skill from https://github.com/fosrl/pangolin/tree/main/.claude/skills/crud-endpoints into .github/skills/crud-endpoints/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "crud-endpoints", 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 fosrl/pangolin --skill crud-endpoints -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install fosrl/pangolin crud-endpoints --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/fosrl/pangolin.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/crud-endpoints .opencode/skills/crud-endpoints && 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 "crud-endpoints" agent skill from https://github.com/fosrl/pangolin/tree/main/.claude/skills/crud-endpoints into .opencode/skills/crud-endpoints/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "crud-endpoints", 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.
crud-endpoints“Use whenever asked to add, create, or scaffold a CRUD endpoint, router, or entity in this repo's server (create/list/get/update/delete handlers, new `server/routers/<entity>/` or `server/private/routers/<entity>/` folder). Points to the established file layout, middleware, ActionsEnum, and route-registration conventions before writing any code.”
Pangolin CRUD Endpoints is a skill in fosrl/pangolin (23k stars). Its SKILL.md is about 461 tokens. Licence: Custom licence.
Read from SKILL.md and the folder at commit 58a3701. It shows what the files ask for, not the result of running them.
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.
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Pangolin CRUD Endpoints loads about 461 tokens when it runs. Until then it costs about 90 tokens; SKILL.md has 172 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.
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.
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 172 words (~461 tokens).
“Before writing any router/handler/middleware code for a new entity, read docs/crud-endpoints.md in full. It documents, with real examples from server/routers/aiProvider/ (public) and server/private/routers/alertRule/ (enterprise-only), how this repo structures CRUD endpoints:”
Just SKILL.md in .claude/skills/crud-endpoints of fosrl/pangolin.
Open the folder on GitHubat commit 58a3701
Pangolin CRUD Endpoints 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 |
|---|---|---|---|---|---|---|
| Pangolin CRUD Endpoints this skillfosrl/pangolin | 23k | — | ~461 | Automated safety check: Pass | Custom licence | |
| API DesignerJeffallan/claude-skills | 12k | 2 repos | ~2k | Automated safety check: Pass | MIT | |
| Nodejs Backend Patternsever-works/ever-works | 158 | 18 repos | ~4k | Automated safety check: Pass | AGPL-3.0 | |
| OpenAPI to MCP Servermcp-use/mcp-use | 11k | — | ~5.2k | Automated safety check: Pass | Apache-2.0 | |
| Old Coder API DesignAmazingAng/old-coder | 749 | 1 repos | ~3.4k | Automated safety check: Pass | MIT | |
| API Surface Reviewpolarsource/polar | 10k | — | ~1.3k | Automated safety check: Pass | MIT |
Jeffallan/claude-skills
Designs REST and GraphQL APIs from resource modeling to an OpenAPI 3.1 contract, with versioning, pagination and RFC 7807 error handling.
ever-works/ever-works
Build production-ready Node.js backend services with Express/Fastify, implementing middleware patterns, error handling, authentication, database integration, and API design best practices.
mcp-use/mcp-use
Turns an OpenAPI or Swagger spec into an MCP server with the mcp-use TypeScript SDK, mapping each operation to a tool, wiring auth, testing and deploying.
AmazingAng/old-coder
Reviews or designs an HTTP/JSON API's endpoints, auth, pagination, versioning and deprecations, guarding against inventing a bespoke interface or silently breaking consumers.
polarsource/polar
Review changes to Polar's API contract — Pydantic schemas, FastAPI endpoints, OpenAPI output and the generated SDKs.
DanielPodolsky/ownyourcode
Reviews API design, REST conventions, and backend architecture.
Categories
Run `npx skills add fosrl/pangolin --skill crud-endpoints -a claude-code`. Or copy the skill folder (.claude/skills/crud-endpoints in fosrl/pangolin) into .claude/skills/crud-endpoints in your project. Claude Code loads it when a task matches its description.
Run `npx skills add fosrl/pangolin --skill crud-endpoints -a codex`. Or copy the skill folder (.claude/skills/crud-endpoints in fosrl/pangolin) into .agents/skills/crud-endpoints in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add fosrl/pangolin --skill crud-endpoints -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/crud-endpoints, .gemini/skills/crud-endpoints, .github/skills/crud-endpoints and .opencode/skills/crud-endpoints in your project.
SKILL.md names no scripts, command-line tools or credentials: Pangolin CRUD Endpoints is instructions for the agent only.
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.
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.
Pangolin CRUD Endpoints has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
About 461 tokens (SKILL.md is roughly 1.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
Skills that share tags, products or a category with Pangolin CRUD Endpoints: API Designer (Jeffallan/claude-skills, 12k stars), Nodejs Backend Patterns (ever-works/ever-works, 158 stars), OpenAPI to MCP Server (mcp-use/mcp-use, 11k stars) and Old Coder API Design (AmazingAng/old-coder, 749 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
fosrl (a GitHub organization) maintains it in fosrl/pangolin, which has 23,025 GitHub stars. The repository was last updated on October 8, 2026.
Source: fosrl/pangolin on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.