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Builder Lens
Builder Lens is a local developer tool that analyzes Claude Code and Codex transcripts to generate builder reports.
Builder Lens is a local analysis tool inspired by Paxel that reads your Claude Code and Codex transcripts to generate a builder report on your machine. It requires Python 3.9+ and runs on macOS or Linux without dependencies, using your existing claude or codex CLI. The tool reads local project and session data, scrubs sensitive information like keys and emails before making model calls, and outputs a single offline HTML report. It charts five axes of agent usage, tracks decision patterns, and produces an agent skill file based on your actual work style. You can also run it with no LLM for stats only, ensuring zero data leaves your computer.
Builder Lens at a glance
Key features
- Reads local Claude Code and Codex transcripts
- Charts five scoring axes for agent usage
- Generates agent skill files for Claude and Codex
- Scrubs keys, tokens, emails, and home paths
- Inspects raw numbers by clicking stat cards
- Produces a single offline HTML report file
- Runs locally with no server or account required
Use it for
- Analyze AI coding agent session transcripts
- Generate custom agent instruction skill files
- Review local builder metrics without uploading data
- Measure decision patterns and engineering habits
Companions
Tools that articles about Builder Lens recommend using with it, each with its job.
- Claude Code — Built to work with Claude Code.
- Codex — Built to work with Codex.
- Context7 — Provides up-to-date documentation for AI agents and code editors.
- Superpowers — Brainstorm, plan and execute skills for bigger tasks.
- Playwright MCP — Enables LLMs to interact with web pages using structured accessibility snapshots.
- GitHub MCP Server — Reads pull requests, issues and code search on GitHub.
Alternatives to Builder Lens
- PR Lens — Reviews pull requests faster using animated architecture and data flow diagrams.
- Build with Claude — Search over 28,500 plugins, 6,900 skills, and 6,600 MCP servers.
- ModLens — Converts screenshots and charts into structured JSON data for coding agents.
- Skyborne — Track multiple Claude Code agent sessions and handle approvals in one local 3D interface.
- Cost X-Ray — It prices usage below the tool level by analyzing raw API request bytes.
- Claude Skills Pack — 388 production-ready skills across 13 tools with zero-dependency Python tools.
- ZCF — It completes end-to-end environment initialization and proxy setup within minutes.
- Codex Plugin for Claude Code — Delegate tasks and run code reviews with Codex directly inside Claude Code.
- Claude DevTools — Restores visibility into Claude Code session logs and tool calls.
- Claude Super Sidebar — It brings agent relationships, execution states, and task flows into one panel.
- Shadowclone — It maintains consistent skills and instructions across all your coding agents.
- Build faster with expert skills — Connects expert methods to Claude Code and Codex through MCP.
All Builder Lens alternatives