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Trace Claude Code to Braintrust

Wires Claude Code hooks so sessions, turns, and every tool call are logged as hierarchical Braintrust traces.

AutomationIntermediate★ 3,945⑂ 303AI score 7/10Last updated: Jan 26, 2026

What it does

  • Sets up four hooks (SessionStart, PostToolUse, Stop, SessionEnd) that stream Claude Code activity to Braintrust.
  • Produces hierarchical traces: session root → conversation turns → individual tool calls, so you can see which files were read and which commands ran.
  • Ships a ready-to-paste .claude/settings.local.json plus a table of env vars (TRACE_TO_BRAINTRUST, BRAINTRUST_API_KEY, BRAINTRUST_CC_PROJECT, debug flag).
  • Includes troubleshooting for missing traces, permission errors, missing jq, and stale state files.

Who it's for

  • AI engineering teams already using or evaluating Braintrust for observability.
  • Developers who need an audit trail of what the agent actually did during a session.
  • Anyone collecting session data to improve prompts and agent workflows.

Examples

  1. Run setup.sh inside a project, enter your API key and project name — hooks register automatically and every later session shows up under Braintrust Logs.
  2. If nothing appears, follow tail -f ~/.claude/state/braintrust_hook.log and flip BRAINTRUST_CC_DEBUG="true" for verbose output.
  3. Prefer code over hooks? Use the included wrapClaudeAgentSDK snippet for the Claude Agent SDK integration.

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/parcadei/Continuous-Claude-v3/HEAD/.claude/plugins/braintrust-tracing/skills/trace-claude-code/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the .claude/plugins/braintrust-tracing/skills/trace-claude-code folder from the GitHub repo parcadei/Continuous-Claude-v3 into my ~/.claude/skills/trace-claude-code/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/parcadei/Continuous-Claude-v3.git && mkdir -p ~/.claude/skills && cp -r Continuous-Claude-v3/.claude/plugins/braintrust-tracing/skills/trace-claude-code ~/.claude/skills/

⚠ This is a third-party skill. Check the source repository before installing.

  1. Create a Braintrust account and generate an API key from the settings page.
  2. Install jq (brew install jq on macOS, sudo apt-get install jq on Ubuntu/Debian).
  3. Clone the repo: git clone https://github.com/parcadei/Continuous-Claude-v3.git
  4. Copy the skill: mkdir -p ~/.claude/skills && cp -r Continuous-Claude-v3/.claude/plugins/braintrust-tracing/skills/trace-claude-code ~/.claude/skills/
  5. Make the hook scripts executable: chmod +x ~/.claude/skills/trace-claude-code/hooks/*.sh
  6. Change into the project you want traced and run bash ~/.claude/skills/trace-claude-code/setup.sh, entering your API key and project name when prompted.
  7. Review the generated .claude/settings.local.json and add it to .gitignore since it holds your API key.
  8. Restart Claude Code, do a few actions, then open braintrust.dev → your project → Logs to confirm traces are arriving.
View source on GitHub ↗License: MIT