Context Lens: View your CLI's agent context in realtime

Runs a local proxy and breaks down exactly what's filling your context window — system prompts, tool defs, conversation history, tool outputs and 'thinking' blocks — so you can stop guessing why a session is expensive. It supports Claude, Codex, Gemini, Pi, Aider and more with privacy modes and a background daemon; practical touches like --no-ui and doctor mode show real product thinking. If you care about security, inspect the proxy/key handling before using it with sensitive credentials.