Langfuse Skills

langfuse/.agents/skills/add-model-price

Use when editing worker/src/constants/default-model-prices.json, packages/shared/src/server/llm/types.ts, pricing tiers, tokenizer IDs, or matchPattern regexes…

langfuse/.agents/skills/agent-setup-maintenance

Use this skill when changing the shared agent setup for the repository.

langfuse/.agents/skills/analyze-cloud-costs

Analyze Langfuse Cloud infrastructure cost structure using Metabase cost marts. Use when asked about cloud spend, AWS versus ClickHouse cost splits, cost…

langfuse/.agents/skills/backend-dev-guidelines

Shared backend guide for Langfuse's Next.js, tRPC, BullMQ, and TypeScript monorepo. Use when creating or reviewing tRPC routers, public REST endpoints, BullMQ…

langfuse/.agents/skills/changelog-writing

Use this skill when a completed feature branch needs a changelog entry.

langfuse/.agents/skills/clickhouse-best-practices

MUST USE when reviewing ClickHouse schemas, queries, or configurations. Contains 28 rules that MUST be checked before providing recommendations. Always read…

langfuse/.agents/skills/code-review

Use this skill when the task is to review code changes rather than implement a feature.

langfuse/.agents/skills/create-repo-agent

Use when designing, implementing, reviewing, or hardening Langfuse repo-owned autonomous agents, especially GitHub Actions that invoke Claude, Codex, or…

langfuse/.agents/skills/datadog-query-recipes

Langfuse-specific Datadog query recipes for production telemetry research. Use when asked to investigate tenant or project activity, public API endpoint usage,…

langfuse/.agents/skills/debug-issue-with-datadog

Debug a user-reported issue, Linear ticket, or incident report by combining Datadog (APM, logs, metrics) with the Langfuse repo to establish a root cause. Use…

langfuse/skills/detect-prod-regressions

Proactively detect production regressions in Langfuse by comparing recent Datadog errors, error logs, error spans, and API route latency signals…

langfuse/.agents/skills/frontend-browser-review

Use this skill when a change affects what users see or do in the browser.

langfuse/.agents/skills/frontend-large-feature-architecture

Use when building, changing, or refactoring large Langfuse frontend features, virtualized lists, large tables, controller components, local feature…

langfuse/.agents/skills/git-workflow

Langfuse repo Git, GitHub, commit, branch, pull request, issue search, release, and production-promotion workflow. Use when staging, committing, pushing,…

langfuse/.agents/skills/housekeeping

Review an engineer's recurring work queue across Linear, Pylon, and GitHub. Use when asked to triage assigned issues, waiting or urgent work, customer-support…

langfuse/.agents/skills/incident-alert-tickets

Read and, after human approval, update the Linear `incident-alert` knowledge base. Use before and after investigating a named Datadog monitor,…

langfuse/.agents/skills/infra-scaling

Tune Langfuse infrastructure autoscaling safely across web, web-iso, and web-ingestion. Use when Codex needs to review or change Terraform scale settings, RPM…

skills/skills/langfuse

Programmatic Langfuse data access and documentation lookup via CLI and web resources. Query and modify Langfuse data (traces, prompts, datasets, scores, sessions) using the langfuse-cli via npx with full REST API schema discovery Access current Langfuse documentation through three methods: structured index (llms.txt), individual markdown pages, and cross-doc search API Includes use-case-specific reference guides for instrumentation, prompt migration, user feedback capture, SDK upgrades, and...

skills/skills/langfuse-api

Interact with the Langfuse API. Use when user wants to query traces, fetch prompts, create datasets, manage scores, or do anything else via the Langfuse REST…

skills/skills/langfuse-cli

Interact with Langfuse and access its documentation. Use when needing to (1) query or modify Langfuse data programmatically via the CLI — traces, prompts,…

langfuse/.agents/skills/langfuse-codebase-navigator

Navigate Langfuse repositories, code areas, and agent skills. Use when a user or agent asks where Langfuse code lives, which Langfuse repo to inspect, which…

skills/skills/langfuse-observability

Instrument LLM applications with Langfuse tracing. Use when setting up Langfuse, adding observability to LLM calls, or auditing existing instrumentation.

langfuse/.agents/skills/langfuse-previews

Use Langfuse's disposable per-PR previews at pr-N.preview.langfuse.com (synthetic data only). Use for preview access, failed deployments, test-data seeding,…

skills/skills/langfuse-prompt-migration

Migrate hardcoded prompts to Langfuse for version control and deployment-free iteration. Use when user wants to externalize prompts, move prompts to Langfuse,…

langfuse/.agents/skills/linear-bug-triage

Deduplicate measured bug or regression evidence against Linear, then either add evidence comments to related existing issues or create concise Linear…

langfuse/.agents/skills/pnpm-upgrade-package

Upgrade pnpm workspace dependencies to target/latest versions: direct/transitive bumps, release-age checks, temporary overrides, minimumReleaseAgeExclude,…

langfuse/.agents/skills/posthog-instrumentation

Product analytics with posthog. Use when adding a meaningful user action or feature in `web/**`, touching PostHog capture code, or answering product-usage…

langfuse/.agents/skills/react-component-cleaner

Use this skill to clean up a React component. Only use this skill when instructed to do so by the user.

langfuse/.agents/skills/react-component-guidelines

Guidelines for writing React components. Use this when creating a new react component.

langfuse/.agents/skills/refactor-react-effects

Refactor avoidable React useEffect usage in Langfuse frontend code. Use when adding, reviewing, or removing effects; initializing forms or local UI state from…