A Langfuse skill for tracing setup, prompt management, datasets, evaluations and API queries.

How it works

Foe: Mirage Djinn, an AI answer that sounds right but isn't.

Foes

  • Mirage Djinn

Party · Context

  • SummonerYour agent100/100
  1. Mirage Djinn

    The Mirage Djinn blocks the way.

    What really happensIt stands for an AI answer that sounds right but isn't.

    Summoner: Context 100/100.

  2. Mirage

    The djinn conjures a mirage, and the hero swings at nothing.

    What really happensA model can sound sure and still be wrong, so AI features need evals and checks.

    Summoner takes 8. Summoner: Context 92/100.

  3. Langfuse Skills

    The Langfuse chronicle opens to a fresh page.

    What really happensWith your Langfuse keys set, the langfuse skill adds or audits tracing in your app.

    Mirage Djinn takes 21.

  4. Langfuse Skills

    Old entries show which answers went wrong.

    What really happensThe skill queries traces, prompts, datasets and scores through the Langfuse API.

    Mirage Djinn takes 18.

  5. Mirage

    The Mirage Djinn uses Mirage.

    Summoner takes 8. Summoner: Context 84/100.

  6. Langfuse Skills

    Prompts move out of the code and into the ledger.

    What really happensIt can move hard-coded prompts into Langfuse prompt management and set up experiment gates in CI.

    Mirage Djinn takes 26.

  7. Langfuse Skills

    Records from another realm come along too.

    What really happensmigrate-to-langfuse moves tracing and history from tools such as LangSmith or Braintrust after asking about scope.

    Mirage Djinn takes 35. Mirage Djinn falls.

  8. Victory

    The Mirage Djinn falls.

Learn this spell

Claude Code and Codex

npx skills add langfuse/skills --skill "langfuse"

Notes

The install command selects langfuse (tracing setup, instrumentation audits, prompt management, API queries and docs lookup). The repository also has a separate migrate-to-langfuse skill for moving from other tools. Needs a Langfuse Cloud or self-hosted project and LANGFUSE_PUBLIC_KEY, LANGFUSE_SECRET_KEY and LANGFUSE_BASE_URL. Also listed as langfuse@claude-plugins-official.

This spell has no recorded sessions in the curator's logs. Tried it? Send a spell report.