feat: add Anthropic Messages API support (#18) #21

Merged
rodin merged 1 commits from feat/18-anthropic-api into main 2026-05-02 01:57:49 +00:00

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Author SHA1 Message Date
Rodin 14a0c2a946 feat: add Anthropic Messages API support (#18)
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Adds --llm-provider flag (openai|anthropic) to switch between API formats.

Anthropic implementation:
- POST /messages endpoint
- x-api-key + anthropic-version headers
- System prompt as top-level field (not a message)
- max_tokens: 8192 for response generation
- Parses content blocks [{type: "text", text: "..."}]

Changes:
- llm/client.go: Provider type, completeAnthropic(), doRequest() shared helper
- cmd/review-bot/main.go: --llm-provider / LLM_PROVIDER flag
- .gitea/actions/review/action.yml: llm-provider input + env
- llm/client_test.go: 4 new tests for Anthropic path

Backwards compatible — default provider is still openai.

Closes #18
2026-05-01 18:49:17 -07:00