What probably matters to youSection of the release
Unclear It's unclear what a cache marker on a message does or when skipping it would matter to a user.
What
The internal forked-agent query runner gained a skipMessageCacheMarkers option, alongside the existing skipTranscript/skipCacheWrite options, threaded into the underlying streaming query call.
The core compaction/summarization call now accepts the same skipMessageCacheMarkers option (defaulting to false), passed through to the underlying compaction function.
When enabled, compaction requests omit cache markers on messages under certain conditions, gated by the tengu_groovy_eclipse feature flag.
Why
Cache markers help Claude Code reuse previously-computed context, but they're not always needed; this gives compaction and forked-agent requests a way to skip them when appropriate.
