TraceRoot.AI

TraceRoot is an open source improvement layer for AI agents that turns production traces into feedback, evaluations and suggested code changes. It is backed by Y Combinator and built to work with a coding agent such as Claude Code or Codex through its own command line tool, installed with npm. The loop starts by tracing every model and tool call with inputs, outputs, latency and cost, using native Python and TypeScript SDKs, frameworks including LangGraph and the Vercel AI SDK, and OpenTelemetry. Detectors then use language models as judges to flag production runs that miss a defined standard, and the judge outputs are clustered into signals. Background coding agents investigate the traces and connected GitHub code in Daytona sandboxes, recommend changes down to the commit, file and line, and send alerts to Slack. Teams verify fixes by running offline evaluations on datasets and comparing versions to catch regressions. The CLI also lets a coding agent read traces, signals and workspace context and manage detectors, datasets, evaluations, dashboards and alerts. The Free plan costs $0 a month with 2 seats and 50,000 events a month. Starter costs $30 a month with unlimited seats, 150,000 events a month, 30 day retention, 100 chat runs and 100 root cause analysis runs, with overage billed at $4 per 50,000 events and $10 per 100 runs. Pro costs $200 a month and adds Slack support. Bring your own key is supported on every plan.