Analyze an existing web application, identify safe user-visible capabilities across routes, forms, server actions, handlers, and schemas, then implement first-party WebMCP tools and validate discovery and invocation with Stagehand.
Install
npx skills add browserbase/skills --skill add-webmcpnpx skills add browserbase/skills --skill add-webmcp -a claude-code -gnpx skills add browserbase/skills --skill add-webmcp -a codex -ggemini skills install https://github.com/browserbase/skills.git --path skills/add-webmcpgh skill install browserbase/skills add-webmcpgit clone --depth 1 https://github.com/browserbase/skills /tmp/browserbase__skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/browserbase__skills/skills/add-webmcp ~/.claude/skills/add-webmcp # Claude Code
cp -R /tmp/browserbase__skills/skills/add-webmcp ~/.agents/skills/add-webmcp # Codex, Cursor, Gemini CLI, Copilot, OpenCode