Open-source local debugger for AI agents
Open-source agent observability and debugging tool — token-by-token trace streaming, replay, evaluation harnesses, and self-healing suggestions that propose and test fixes for production agent failures. Integrates with Claude Code via MCP. Runs locally so traces never leave the dev machine. PH launch 14 May 2026 with 139 votes; fills a real gap in the agent-dev-tooling shelf alongside Statewright and Voker.
| Rating | 0 | 0 | 0 | 0 |
| Reviews | — | — | — | — |
| Price | Free / Open-source | Included with ChatGPT | Free | Contact for pricing |
| Free tier | Fully open-source | Free tier available | Free | Free tier available |
| API access | ✓ | ✗ | ✓ | ✓ |
OpenAI's official Chrome extension that lets Codex navigate web pages and complete multi-step tasks directly in the browser — fill forms, scrape data, drive web apps without copy-pasting between tabs. Browser-native agents are the new assistant battleground, and this is the most polished option for ChatGPT users who want their AI to actually do the work rather than just describe it.
Open-source browser automation built on Bun rather than Node, with an API designed for AI agent workflows from the ground up. Faster startup and lower memory overhead than Puppeteer or Playwright when spinning up disposable browser sessions for agents to drive — useful for any developer building autonomous web tasks at scale.
Schedules recurring AI agent runs with one command and zero infrastructure — no servers, queues, or wrappers required. The plumbing layer for anyone running agents that need to wake up on a schedule rather than only on a user prompt, which covers most production agent use cases once you move past chat.