DeepSeek models mengembalikan tool calls dalam format DSML (DeepSeek
Markup Language) di dalam text content, bukan sebagai JSON structured
tool_calls. Ini menyebabkan tool calling gagal di Claude Code.
Perubahan:
- Buat src/lib/dsml-parser.ts: parser DSML berbasis regex dengan dukungan
streaming (DSMLAccumulator), deteksi teks sebelum/sesudah DSML, dan
parsing parameter JSON
- Forward tools/tool_choice dari client ke backend di Anthropic & OpenAI paths
- Konversi DSML ke tool_use content blocks (Anthropic) atau tool_calls array
(OpenAI) di response non-streaming
- Handle DSML di streaming: buffer text deltas, deteksi di akhir stream,
emit tool_use/tool_calls events yang sesuai
- Handle tool_result blocks dari Anthropic format di assistant messages
- Tambah 29 tests untuk parser dan 18 tests untuk anthropic-proxy
Fix: #285 tests pass, 0 fail
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
- Auto-default anthropic-version to 2023-06-01 for prompt caching
- Forward cache headers (x-cache, cf-cache-status, age, etc.) from backend
- Add features: ["prompt_caching"] to /v1/models response
- Extract and report actual usage tokens in streaming message_delta
- Track output char count for token estimation when backend omits it
- Cache-aware usage reporting: cache_creation_input_tokens, cache_read_input_tokens
- Comprehensive tests for cache_control preservation in content blocks & system
