{"id":39072989,"url":"https://github.com/mimshwright/fp-javascript-skill","last_synced_at":"2026-01-17T18:24:02.276Z","repository":{"id":330454841,"uuid":"1121365379","full_name":"mimshwright/fp-javascript-skill","owner":"mimshwright","description":"\"A Claude skill for working with functional javascript and typescript.\"","archived":false,"fork":false,"pushed_at":"2025-12-25T18:16:59.000Z","size":15,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":0,"default_branch":"main","last_synced_at":"2025-12-27T02:37:15.729Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":null,"language":"Shell","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/mimshwright.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null,"notice":null,"maintainers":null,"copyright":null,"agents":null,"dco":null,"cla":null}},"created_at":"2025-12-22T21:50:33.000Z","updated_at":"2025-12-25T18:17:02.000Z","dependencies_parsed_at":null,"dependency_job_id":null,"html_url":"https://github.com/mimshwright/fp-javascript-skill","commit_stats":null,"previous_names":["mimshwright/fp-javascript-skill"],"tags_count":null,"template":false,"template_full_name":null,"purl":"pkg:github/mimshwright/fp-javascript-skill","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/mimshwright%2Ffp-javascript-skill","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/mimshwright%2Ffp-javascript-skill/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/mimshwright%2Ffp-javascript-skill/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/mimshwright%2Ffp-javascript-skill/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/mimshwright","download_url":"https://codeload.github.com/mimshwright/fp-javascript-skill/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/mimshwright%2Ffp-javascript-skill/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":28515418,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-01-17T17:57:59.192Z","status":"ssl_error","status_checked_at":"2026-01-17T17:57:52.527Z","response_time":85,"last_error":"SSL_connect returned=1 errno=0 peeraddr=140.82.121.5:443 state=error: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":[],"created_at":"2026-01-17T18:24:02.067Z","updated_at":"2026-01-17T18:24:02.254Z","avatar_url":"https://github.com/mimshwright.png","language":"Shell","funding_links":[],"categories":[],"sub_categories":[],"readme":"# fp-javascript Skill\n\nA Claude skill for functional programming patterns in JavaScript and TypeScript.\n\n## What is this?\n\nThis is a custom skill that teaches Claude to write idiomatic, educational, and maintainable functional code in JavaScript and TypeScript. The skill provides comprehensive guidance on:\n\n- **Functional Programming Principles**: Purity, immutability, composition, currying, and piping\n- **Library Selection**: Detailed comparison and recommendations for Ramda, fp-ts, Sanctuary, Effect, and PureScript\n- **Code Style Standards**: Data-last composition, Haskell-style type signatures, and when to extract vs inline functions\n- **TypeScript Integration**: FP-specific type patterns, generic constraints, and type inference strategies\n- **Testing Strategies**: Focused testing of atomic functions with \"correctness by construction\" for composed pipelines\n- **Algebraic Structures**: Fantasy Land specifications, functors, monads, and algebraic data types\n- **Advanced Topics**: Combinators (K, S, I, B, C), type theory, higher-kinded types, and sum/product types\n\nThe skill adapts to your project by detecting installed libraries in `package.json` and provides context-aware recommendations based on your purity requirements, TypeScript usage, and team experience level.\n\n## Installation\n\n1. Clone this repository\n2. Build the skill file:\n   ```bash\n   npm run build\n   ```\n3. The distributable `.skill` file will be created in `dist/fp-javascript.skill`\n4. Add the skill to your Claude configuration\n\n## Development\n\n### Project Structure\n\n```\nfp-javascript-skill/\n├── src/\n│   ├── SKILL.md              # Main skill instructions\n│   └── references/           # Reference documentation\n│       ├── combinators.md\n│       ├── fantasy-land.md\n│       ├── type-definitions.md\n│       └── type-theory.md\n├── dist/                     # Build output (gitignored)\n│   └── fp-javascript.skill\n├── build.sh                  # Build script\n├── package.json              # Project metadata and scripts\n└── README.md                 # This file\n```\n\n### Building\n\nThe skill file is a zip archive containing the markdown source files. To build:\n\n```bash\nnpm run build\n```\n\nOr directly:\n\n```bash\n./build.sh\n```\n\n### Editing\n\nEdit the markdown files in `src/` directory:\n- [src/SKILL.md](src/SKILL.md) - Main skill content\n- [src/references/](src/references/) - Additional reference materials\n\nAfter making changes, rebuild the skill file.\n\n## What does this skill cover?\n\n- Functional programming principles (purity, immutability, composition)\n- Library selection guidance (Ramda, fp-ts, Sanctuary, Effect, PureScript)\n- Code style rules (currying, piping, type signatures)\n- TypeScript patterns for FP\n- Testing strategies for functional code\n- Fantasy Land specifications and algebraic structures\n- Combinators and type theory\n\n## License\n\nMIT\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmimshwright%2Ffp-javascript-skill","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fmimshwright%2Ffp-javascript-skill","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmimshwright%2Ffp-javascript-skill/lists"}