teyrebaz33 bd49bce278 fix(prompt-caching): skip top-level cache_control on role:tool for OpenRouter ...

On the native Anthropic Messages API path, convert_messages_to_anthropic()
moves top-level cache_control on role:tool messages inside the tool_result
block. On OpenRouter (chat_completions), no such conversion happens — the
unexpected top-level field causes a silent hang on the second tool call.

Add native_anthropic parameter to _apply_cache_marker() and
apply_anthropic_cache_control(). When False (OpenRouter), role:tool messages
are skipped entirely. When True (native Anthropic), existing behaviour is
preserved.

Fixes #2362

2026-03-21 16:54:43 -07:00

42 KiB

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