skills.sh

Skills is a command-line tool for the open agent skills ecosystem. It installs reusable instruction sets defined in SKILL.md files into supported coding agents such as OpenCode, Claude Code, Codex, Cursor, and others. The `npx skills` CLI resolves skills from GitHub, GitLab, other Git URLs, local paths, or direct file and archive URLs; lists available skills, selects individual skills, and installs them project-wide or globally by symlink or copy. It can also generate a prompt for a skill without installing it, launch a supported agent with that prompt, search for skills, update or remove installations, and create new SKILL.md templates. Skills use YAML frontmatter with a name and description, and the CLI discovers them in standard agent and repository skill directories. The project is licensed under the MIT License.

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.

browse.sh is a browser-automation platform for AI agents that combines an open catalog of reusable SKILL.md recipes with a command-line interface. The catalog contains website-specific skills for tasks such as searching listings, tracking flights, finding events, and querying public APIs; skills can be installed with the browse CLI, and the videos describe generating new skills on demand by email. The CLI also provides low-level browser actions such as clicking, typing, selecting, scrolling, hovering, pressing keys, and taking screenshots, along with network and console tracing for debugging. It can run commands against local Chromium or remote Browserbase sessions, including cloud search and fetch operations.

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.

An installable browser-automation CLI for AI agents, hosted by browse.sh. It provides an open catalog of reusable SKILL.md recipes for website-specific tasks, which agents can install on demand with commands such as `browse skills add alltrails.com`. It also exposes low-level browser primitives for clicking, scrolling, typing, hovering, pressing keys, selecting elements, and taking screenshots, addressing elements by DOM selectors or accessibility references. The CLI can tail browser network and console output for debugging and can run commands against local Chromium or remote Browserbase sessions. Catalog skills cover website operations such as searching listings, tracking flights, finding events, and querying public APIs; the page states that suggested DOM selectors and XHR requests can reduce token usage.