Automatically send Claude Code conversation traces to LangSmith for monitoring and analysis. Prerequisites: jq (brew install jq on macOS or sudo apt-get install jq on Linux), curl and uuidgen (usually pre-installed), LangSmith account and API key. Configuration: Install langsmith-tracing setting (npx claude-code-templates@latest --setting telemetry/langsmith-tracing) or manually add to .claude/settings.local.json the following environment variables: TRACE_TO_LANGSMITH=true, CC_LANGSMITH_API_KEY=lsv2_pt_..., CC_LANGSMITH_PROJECT=project-name, CC_LANGSMITH_DEBUG=true (optional). How it works: Runs in background on Stop event after each Claude response, reads conversation transcript, converts to LangSmith format, sends to LangSmith API, groups by thread_id for session continuity. Debugging: Check logs at ~/.claude/state/hook.log. Privacy note: System prompts not included in traces.

214 downloads · 1 file · 1.1 KB · Jan 9, 2026 · Source ↗

Install

npx claude-code-templates@latest --hook monitoring/langsmith-tracing

Merges into the settings file you pick

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214 downloads
1 file · 1.1 KB
Added Jan 9, 2026
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Daniel Avila fix(components): clear every claude plugin validate error in the catalog #1071 dd830a9Oct 22, 2026

langsmith-tracing.json 15 lines · 1.1 KB

langsmith-tracing.json

JSON

{

"description": "Automatically send Claude Code conversation traces to LangSmith for monitoring a..."

"hooks": {

"Stop": [1 item]

}

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