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LangSmith tracing and metrics for LangChain v1.0.0

Use this resource to set up LangSmith tracing and metrics for a LangChain chain or agent

New

  • 536 downloads
  • 173 likes
  • 180 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install langchain-langsmith-tracing-metrics

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent configures the LangSmith 1.0 environment variables, writes a per-request metric callback, passes callbacks at invocation and adds per-tenant dimensions for cost and latency. It also covers combining LangSmith with OpenTelemetry.

Mostly picked by

Updated November 2, 2026

Card for the “LangSmith tracing and metrics for LangChain” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
MIT

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What you get

  • SKILL.md : environment variables, callbacks and invocation-time callbacks
  • references/langsmith-setup.md : LangSmith setup
  • references/custom-metrics-callback.md : metrics callback
  • references/hybrid-langsmith-otel.md : LangSmith and OpenTelemetry

Good fit for

  • Your LangSmith traces stay empty after a restart
  • You want to split agent cost by customer

Not for

    Tags

    • langchain
    • langsmith
    • tracing
    • metrics

    About

    You say

    “Turn on LangSmith tracing for my agent and add a cost metric per tenant.”

    Card for the “LangSmith tracing and metrics for LangChain” skill

    Skill published by Jeremy Longshore <jeremy@intentsolutions.io> under the MIT license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to set up LangSmith tracing and metrics for a LangChain chain or agent
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1.1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • references/custom-metrics-callback.md7.4 KB
    • references/hybrid-langsmith-otel.md6.9 KB
    • references/langsmith-setup.md5.5 KB
    • references/one-pager.md3.5 KB
    • references/trace-metadata-and-tagging.md6.2 KB
    • SKILL.md15.7 KB

    Origin and licence

    Listed unmodified

    Author
    Jeremy Longshore <jeremy@intentsolutions.io>
    Source
    github.com/jeremylongshore/tons-of-skills-marketplace/tree/ab85a061f7bcc039dac13ee193de7a4cd4388571/skills/.curated/langchain-observability
    Licence
    MIT

    Notice

    « langchain-observability » (Jeremy Longshore <jeremy@intentsolutions.io>, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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