{"ok":true,"site":{"host":"usechar.ai","url":"https://usechar.ai/","type":"live","desc":"Ship a UI-first copilot (no backend rewrite). Turn the signed‑in user session into the universal API—and capture decision traces—via WebMCP.","tools":[{"name":"demo_register_tool","kind":"act","impl":"imperative","description":"Register a new WebMCP tool dynamically. The tool will be available immediately for use.","inputSchema":{"type":"object","properties":{"name":{"type":"string","description":"Tool name (snake_case recommended)"},"toolDescription":{"type":"string","description":"What the tool does"},"handlerCode":{"type":"string","description":"JavaScript function body. Receives 'args' parameter."}},"required":["name","toolDescription","handlerCode"]},"hasHandler":true,"hasExecute":true,"__source":"spec","executable":true,"handlerField":"execute","page":"/","pages":["/"]},{"name":"demo_update_styles","kind":"act","impl":"imperative","description":"Update the Char widget's visual appearance via CSS variables.\nAvailable variables: --char-color-primary (hex), --char-color-background (hex), --char-color-foreground (hex), --char-color-muted (hex), --char-color-border (rgba or hex), --char-radius (px value like \"8px\" or \"0\")","inputSchema":{"type":"object","properties":{"variables":{"type":"object","additionalProperties":{"type":"string"},"description":"CSS variable key-value pairs. Example: {\"--char-color-primary\": \"#ff6b35\", \"--char-radius\": \"12px\"}"}},"required":["variables"]},"hasHandler":true,"hasExecute":true,"__source":"spec","executable":true,"handlerField":"execute","page":"/","pages":["/"]}],"category":"AI & Agents","favicon":"/favicons/usechar.ai.png","apiSurface":"spec","toolCount":2}}