agtrace

See What Your AI Agent Is Actually Doing

The Problem I Had

When I started using AI coding agents (Claude Code, Codex, Gemini), I realized I was working with a black box. I couldn't see:

How much of the context window was being consumed
What the agent was actually doing between my prompts
When the conversation was getting too long and performance would degrade

I found myself guessing the agent's internal state. That felt wrong.

What Changed

Now I always run agtrace alongside my coding agent. It's become essential.

agtrace with Claude Code

What I see:

Context window usage — A color-coded bar showing how full the conversation is
Token consumption trends — How much context each task uses over time
Live activity — Tool calls, file reads, reasoning traces as they happen

For the first time, I can make informed decisions about when to start a new session, how to scope my requests, and whether the agent is stuck in a loop.

agtrace watch demo

Try It

npm install -g @lanegrid/agtrace
cd my-project
agtrace init      # One-time setup
agtrace watch     # Launch dashboard in a separate terminal

Works with Claude Code, Codex (OpenAI), and Gemini. Zero config — just discovers existing logs.

Give Your Agent Memory of Past Sessions

One thing I didn't expect: agents can also query their own execution history via MCP:

# Claude Code
claude mcp add agtrace -- agtrace mcp serve

# Codex
codex mcp add agtrace -- agtrace mcp serve

Now your agent can search what it did yesterday, find past errors, and learn from previous sessions.

See the MCP Integration Guide for more.

Other Commands

agtrace session list       # Browse past sessions
agtrace lab grep "error"   # Search across all sessions

For Tool Builders

If you're building your own IDE plugin, dashboard, or observability tool:

[dependencies]
agtrace-sdk = "0.6"

See SDK Documentation and Examples.

Documentation

Feedback

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License

MIT / Apache 2.0