LENS

Analyze your AI coding usage.

See how efficiently you use Codex, Claude Code and Grok Build — which models actually earn their tokens on your work. Everything runs in this browser tab; nothing is uploaded.

Your browser cannot read folders, so select the .jsonl session files themselves. The helper below shows where they live.

Or drag a folder here

What Lens reads

CodexTokens, reasoning effort, cache, plan utilization

Claude CodeTokens, cache reads and writes, subagents, compactions

Grok BuildTurns, tools and timing — Grok Build logs no token counts

Your data stays on your device

Lens reads your local agent logs in the browser and keeps only the numbers. Prompts, responses, file contents and repository names are discarded as each file is parsed — they are never stored, and there is no server to send them to. Folders are opened read-only; Lens never writes to an agent’s directory.