{"schemaVersion":"1.0","source":"The Workflow Finder","sourceUrl":"https://www.theworkflowfinder.com","license":"Free to use with attribution and a link to the cited page","generated":"2026-08-28","workflow":{"title":"Build a Production LLM Evaluation and Monitoring Pipeline","slug":"llm-evaluation-pipeline-langsmith-wandb","url":"https://www.theworkflowfinder.com/workflows/llm-evaluation-pipeline-langsmith-wandb","description":"Set up systematic evaluation for your LLM application so you know when output quality changes, with automated tests that run on every prompt change and production monitoring that catches regressions.","difficulty":"Advanced","timeEstimate":"2–3 days setup","schemaDuration":"P3D","expectedResult":"An evaluation pipeline that runs automatically on every deployment, a production monitoring dashboard, and a process for catching quality regressions before users report them.","tags":["LLM","Developer Tools","AI Quality","MLOps"]},"steps":[{"position":1,"title":"Build Your Golden Dataset","instructions":"Collect 50–100 representative input-output pairs from your LLM application, both good outputs and known failure cases. This becomes your evaluation dataset in LangSmith.","input":"Workflow inputs: the topic, goal, or raw materials the user is starting from.","output":"Handoff artifact consumed by Step 2 (\"Define Your Evaluation Criteria\").","toolSlots":[{"slug":"langsmith","name":"LangSmith","url":"https://www.theworkflowfinder.com/tools/langsmith","category":"Developer Tools","pricing":"freemium","capabilities":["API integration"]}]},{"position":2,"title":"Define Your Evaluation Criteria","instructions":"For each output in your dataset, write scoring rubrics: what makes a response correct, helpful, and safe for your specific use case. Load these as custom evaluators in LangSmith.","input":"Output of Step 1 (\"Build Your Golden Dataset\").","output":"Handoff artifact consumed by Step 3 (\"Connect Production Tracing\").","toolSlots":[{"slug":"langsmith","name":"LangSmith","url":"https://www.theworkflowfinder.com/tools/langsmith","category":"Developer Tools","pricing":"freemium","capabilities":["API integration"]}]},{"position":3,"title":"Connect Production Tracing","instructions":"Integrate LangSmith's tracing SDK into your application. Every production LLM call is now logged with full context, inputs, outputs, model used, latency, and cost.","input":"Output of Step 2 (\"Define Your Evaluation Criteria\").","output":"Handoff artifact consumed by Step 4 (\"Track Experiments with Weights & Biases\").","toolSlots":[{"slug":"langsmith","name":"LangSmith","url":"https://www.theworkflowfinder.com/tools/langsmith","category":"Developer Tools","pricing":"freemium","capabilities":["API integration"]}]},{"position":4,"title":"Track Experiments with Weights & Biases","instructions":"When testing a new prompt version or model upgrade, log the experiment in Weights & Biases alongside your LangSmith eval scores. This gives you a complete picture of what changed and how it affected quality.","input":"Output of Step 3 (\"Connect Production Tracing\").","output":"Handoff artifact consumed by Step 5 (\"Add Eval to CI/CD\").","toolSlots":[{"slug":"weights-biases","name":"Weights & Biases","url":"https://www.theworkflowfinder.com/tools/weights-biases","category":"Developer Tools","pricing":"freemium","capabilities":["Data analysis","API integration"]}]},{"position":5,"title":"Add Eval to CI/CD","instructions":"Set up a GitHub Action that runs your LangSmith evaluation suite on every PR that changes a prompt or model. The action fails if quality drops below your defined baseline on any metric.","input":"Output of Step 4 (\"Track Experiments with Weights & Biases\").","output":"Final workflow output: An evaluation pipeline that runs automatically on every deployment, a production monitoring dashboard, and a process for catching quality regressions before users report them.","toolSlots":[{"slug":"langsmith","name":"LangSmith","url":"https://www.theworkflowfinder.com/tools/langsmith","category":"Developer Tools","pricing":"freemium","capabilities":["API integration"]},{"slug":"github-copilot","name":"GitHub Copilot","url":"https://www.theworkflowfinder.com/tools/github-copilot","category":"Coding","pricing":"paid","capabilities":["Code generation","Code review","Debugging assistance"]}]}]}