compactHistory() now defaults to DEFAULT_COMPACT_MODEL =
'google/gemini-2.5-flash-lite' when the caller doesn't override. Lite
is ~3–5x cheaper than gemini-2.5-flash with near-identical
summarisation quality — summarisation doesn't need the same tier as
reasoning + tool-calling, and the compactor fires exactly when token
spend is highest, so the cheaper route saves exactly where it matters.
CompactHistoryOptions.model is now optional. All three consumers
(mana-ai tick, webapp Companion, webapp Mission runner) drop their
explicit gemini-2.5-flash override and let the default apply.
This is the pragmatic M2.5: no mana-llm changes. The "tier" abstraction
(X-Model-Tier header, env-routed aliases) from the Claude-Code report
makes sense only once multiple utility tasks need cheaper routing —
topic-detection, classification, command-injection checks. Today only
the compactor wants it, and a model constant is the simplest contract
that works.
2 new tests (default applied + override honoured). 79 shared-ai tests
green, all three consumers type-check clean. One pre-existing unrelated
type error in apps/mana/apps/web/src/lib/modules/wardrobe/queries.ts
(not touched by this commit).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
f7536bc0b9