Backend:
- DraftDocument: Claude generates legal documents from case data + template type
(14 template types: Klageschrift, UPC claims, Abmahnung, etc.)
- CaseStrategy: Opus-powered strategic analysis with next steps, risk assessment,
and timeline optimization (structured tool output)
- FindSimilarCases: queries youpc.org Supabase for UPC cases, Claude ranks by
relevance with explanations and key holdings
Endpoints: POST /api/ai/draft-document, /case-strategy, /similar-cases
All rate-limited (5 req/min) and permission-gated (PermAIExtraction).
YouPC database connection is optional (YOUPC_DATABASE_URL env var).
Add two Claude API-powered endpoints:
- POST /api/ai/extract-deadlines: accepts PDF upload or JSON text, extracts
legal deadlines using Claude tool_use for structured output
- POST /api/ai/summarize-case: generates AI summary from case events/deadlines,
caches result in cases.ai_summary
New files:
- internal/services/ai_service.go: AIService with Anthropic SDK integration
- internal/handlers/ai.go: HTTP handlers for both endpoints
- internal/services/ai_service_test.go: tool schema and serialization tests
Uses anthropic-sdk-go v1.27.1 with Claude Sonnet 4.5. AI service is optional —
endpoints only registered when ANTHROPIC_API_KEY is set.
