End-to-end use cases.
Working code for the patterns customers ask about most. Copy, paste, ship.
Code review bot
Build a bot that reviews pull requests using Claude Sonnet, with tool calling to read repo files and post inline comments. Includes prompt template, error handling, and webhook integration.
Tool calling · Webhooks · Claude Sonnet
Streaming chat UI
Next.js + React chat interface that streams tokens with sub-second TTFT. SSE parsing, cancellation, mid-stream error handling, and inline guardrail status display.
Streaming · Next.js · React
Batch document analysis
Process 10,000 PDFs overnight at 50% the realtime cost. Async batch enqueue + poll loop, structured extraction with JSON mode, progress tracking, failure recovery.
Batch · JSON mode · Long context
RAG with caching
Retrieval-augmented chat backend. Embed once, retrieve fast, then chat — with the stable system prompt cached at 90% off so high-volume RAG stays cheap.
Embeddings · Prompt cache · Long context
Cost-optimized routing
Route easy requests to a budget model, hard requests to premium. Two patterns: classifier-first and confidence-based escalation. 80%+ savings vs naive routing.
Routing · Multi-model · Cost
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