The Agent Skills Directory

[COMMAND_EXECUTION]: The skill manages the lifecycle of a local visual companion server by executing shell scripts to manage background processes.
Evidence: scripts/start-server.sh initiates the server and scripts/stop-server.sh handles termination based on validated process IDs.
[COMMAND_EXECUTION]: The skill runs a self-contained Node.js server to facilitate WebSocket communication and serve UI prototypes.
Evidence: scripts/server.cjs implements a basic HTTP and WebSocket server using only standard Node.js built-in modules.
[EXTERNAL_DOWNLOADS]: The companion server fetches a branding asset from a remote domain for display in the browser interface.
Evidence: scripts/server.cjs contains a hardcoded URL for a brand image: https://primeradiant.com/brand/superpowers-visual-brainstorming-logo.png.
[INDIRECT_PROMPT_INJECTION]: The skill incorporates a feedback loop where it reads user interaction data (clicks and choices) from a local session file generated by the browser companion.
Ingestion points: visual-companion.md describes the agent reading from $SCREEN_DIR/.events which is populated by scripts/server.cjs based on browser interactions.
Boundary markers: The instructions in visual-companion.md advise the agent to synthesize terminal text and structured event data to confirm user intent.
Capability inventory: The skill can create HTML prototype files, run a local web server, and execute shell commands for lifecycle management.
Sanitization: The server validates incoming WebSocket payloads as JSON before recording them to the event log.

brainstorming