Final review polish:
- Add an inline comment on the claude-opus-4-7-thinking registry entry
explaining it is a pricing-only id kept for historical analytics data
(no catalog model after Opus 4.7 moved to adaptive thinking levels),
and why it carries no fast tier.
- Add a test asserting applyServiceTier preserves the serviceTiers map on
its result, guarding against a future simplification dropping it.
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Address presto review on the fast-tier work:
- Move the claude-opus-4-8 entry after claude-opus-4-7-thinking so the
registry keeps chronological 4.6 -> 4.7 -> 4.8 ordering (the 4.8 insert
had split the 4-7 / 4-7-thinking pair).
- Drop the fast serviceTier from claude-opus-4-7-thinking: that id is a
legacy pricing-only entry with no catalog model, so a fast premium on it
is meaningless. The active 4.6-thinking variant (agy provider) keeps its
fast tier.
- Extend the 4.7 fast-tier test with cache-rate assertions and add an
equivalent 4.6 fast-tier test so the derived buildRates math is covered
for every premium-tier model.
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Address review feedback on the per-service-tier pricing:
- Extract `buildRates(input, output)` plus named CACHE_5M_WRITE_MULTIPLIER
/ CACHE_READ_MULTIPLIER constants so fast-tier cache rates are derived
from Anthropic's documented multipliers instead of hand-computed numbers.
This removes the inconsistency where Opus 4.6 fast-tier lacked the
explanatory inline comments that 4.7/4.8 carried (presto suggestion #3).
- Document in `applyServiceTier` that no production caller passes
`serviceTier` yet (Anthropic's service_tier is not captured on
CliproxyRequestDetail), so fast-mode usage is currently billed at the
standard rate until the usage pipeline records the tier.
- Add a combined date-suffix + fast-tier lookup test to prove the two
resolution stages compose.
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Extend `ModelPricing` with an optional `serviceTiers` map keyed by
Anthropic's `service_tier` request parameter. `getModelPricing(model,
{ serviceTier })` returns the matching tier rates when present and
transparently falls through to base rates otherwise — existing call
sites keep current behavior.
Registry entries added (per Anthropic Fast mode pricing docs):
- claude-opus-4-8 fast: $10/$50 input/output (2x premium)
- claude-opus-4-7 fast: $30/$150 (6x premium)
- claude-opus-4-6 fast: $30/$150 (6x premium)
Cache rates derived from the documented Prompt caching multipliers
(1.25x for 5-min cache write, 0.1x for cache read).
Note: tier tracking through CliproxyRequestDetail is not wired yet —
that's a follow-up so usage transformers can pass `serviceTier` when
Anthropic returns it on the response. Schema is in place; integration
can land independently.
Also adds a defensive `claude-opus-4-8-20260530` pricing test to exercise
`stripDateSuffix` even though Anthropic no longer issues date-stamped IDs
for the 4.6+ generation (addresses presto-review suggestion #1).
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