Steve Dudenhoeffer 34b2e29019 feat(v2/anthropic): apply cache_control markers from CacheHints ...

buildRequest now tracks a source-index → built-message-index mapping
during the role-merge pass, then uses the mapping to attach
cache_control: {type: ephemeral} markers at the positions indicated by
Request.CacheHints. The last tool, the last system part, and the last
non-system message each get a marker when the corresponding hint is set.

Covers the merge-induced index drift that would otherwise cause the
breakpoint to land on the wrong content block when consecutive same-role
source messages are combined into a single Anthropic message with
multiple content blocks.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

2026-04-09 19:33:25 +00:00

11 KiB

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