* fix(router): preserve native baseline identity and accounting
* fix(router): preserve injected system caches in native baselines
* fix(router): prepare native baselines through shared request owners
* fix(router): capture native baseline fields from the provider schema
* refactor(router): reuse native provider parameter discovery
* fix(router): keep long native baselines and abstain after compaction
Message history no longer counts against the settings snapshot budget, so long
and non-ASCII native sessions keep modeled baselines. Selected-tier compaction
now abstains because the baseline would otherwise inherit the compacted history.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* fix(router): judge implicit caching against the selected request
The implicit-cache guard compared the selected response's cache usage with the
projected baseline's breakpoints, so selected-tier cache markers made a usable
unmarked baseline plan look like unexplained caching. The guard now checks the
selected wire request. Also removes a stamp-reuse branch that could never run
because routing clears the stamp first; every pass already captures caller
settings from fresh kwargs.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
