ObservAgent: Real-Time Observability for Claude-Code

Hey PH!,

I’ve been working on a project called ObservAgent and wanted to share it here to get feedback from people building with AI agents, especially Claude Code users.

What it is

ObservAgent is a local-first observability tool that lets you see what your Claude agent is actually doing in real time. You can track token usage, cost, tool calls, latency, and sub-agent behavior while a session is running.

Project page: https://darshannere.github.io/observagent/

Why I built it

Claude agent runs can get expensive and opaque very quickly. I kept asking myself:

• Which tool calls are slow?

• Which sub-agent is causing cost spikes?

• What is actually happening during a long run?

Most existing tools are cloud-based or require wrapping your agent code. I wanted something simple, local, and transparent.

Key features

• Real-time cost and token tracking

• Live tool call monitoring with latency and arguments

• Parent and child agent visibility

• Works with Claude Code via hooks

• Zero telemetry, everything stays on your machine

• Open source and free forever (Apache 2.0)

I’d really appreciate feedback, feature requests, or ideas for improvement. If this sounds useful, feel free to try it out or contribute.

Thanks for reading 🙏