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Agent Skills is a curated skill registry and npm-based CLI for extending AI coding agents such as Claude Code, Cursor, Copilot, and Antigravity with packaged instructions, templates, and reference files. The CLI fetches a catalog, lets users search and select skills, caches downloads locally, and installs them to selected agents by copying or symlinking them at global or project scope; it also supports updating, removing, auditing, and managing cached skills. The repository describes the catalog as an open-source, human-curated library with CI static analysis, content hashing, lockfiles, path isolation, symlink guards, sanitization, audit logging, and Snyk Agent Scan checks. It also includes an MCP server that exposes progressive-disclosure tools for listing, searching, reading, and fetching skill files. The CLI source is MIT-licensed; maintainer-authored skills are generally CC BY 4.0, while third-party skills retain their own licenses.

Skill Cabinet is a local catalog for agent skills installed on a machine. It scans user-level skill locations such as .agents, .claude, .codex, .cursor plugins, Hermes profiles, and other ~/.* /skills folders, then lets users filter skills by drawer, metadata, risk, invocation mode, and status; inspect rendered or source bodies, YAML frontmatter, extra files, symlinks, duplicates, origins, and broken links; and review disk usage. It runs with Node 20 or later through npx skill-cabinet, starting a server bound to 127.0.0.1 and opening the catalog in a browser. Users can quarantine skills to ~/.skill-cabinet/quarantine and restore them, or delete individual skills or groups; deletion removes folders, files, or symlinks from the scanned locations, while a symlink's target is retained. The project is distributed under the MIT license.

Awesome Agent Skills is an open-source curated collection of more than 1,000 agent skills from official development teams and the community. Each listing provides a description and source link; the collection includes skills from projects such as Anthropic, Google Labs, Vercel, Stripe, Cloudflare, and others. The skills are documented for use with multiple coding-agent environments, including Claude Code, Codex, Gemini CLI, Cursor, GitHub Copilot, OpenCode, and Windsurf.

Kittl is an AI-first online design platform for creating graphics, apparel designs, and other visual assets. It combines templates, AI image generation, editing tools, mockups, and curated design assets, and is used in template-based print-on-demand workflows.

Agent Skills is an open-source collection of engineering workflows for AI coding agents, developed by Addy Osmani. It packages senior-engineering practices into skills covering the development lifecycle: defining specifications, planning, incremental implementation, testing and debugging, constraints, code review, web-performance auditing, code simplification, and shipping. Slash commands such as /spec, /plan, /build, /test, /review, and /ship activate the corresponding workflows, while skills can also activate automatically based on the work being performed. The /build workflow can generate a plan and implement its tasks in an approved pass, while retaining test-driven verification, individual commits, and pauses for failures or risky steps. It can be installed with the skills CLI or integrated into supported coding agents including Claude Code, Cursor, Codex, Copilot, and Cline.