feat(cursor): expose Opus Fast families with live-verified effort tiers - #2346
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Live GetUsableModels (260822, devlog 300) lists the Opus Fast wire ids ONLY
in effort-suffixed form ({base-without-fast}-{effort}-fast); the bare id
returns not_found — which is exactly what cursor/claude-opus-4-7-fast did
through the proxy, because the static catalog sent it bare ("tiers
unverified"). A live turn on claude-opus-4-8-high-fast succeeded, so the
families are callable on this plan.
- discovery.ts: claude-opus-4-7-fast gains its tier picker; add
claude-opus-4-8-fast and claude-opus-5-fast.
- effort-map.ts: tier ladders per the dump — 4-7/4-8: low..max;
opus-5-fast: low/medium/high (no xhigh/max non-thinking yet).
- No-effort requests still resolve to a suffix (max) via codexEffortRank,
so a bare -fast id can never reach the wire; no registry default needed.
- Tests pin family presence, ladders, wire-id derivation, no-bare rule,
and out-of-ladder clamping.
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📝 WalkthroughWalkthroughThe Cursor static catalog now includes three Opus Fast models. Their reasoning-effort tiers and suffixed wire IDs are defined and covered by tests. ChangesCursor Opus Fast support
Estimated code review effort: 2 (Simple) | ~10 minutes Suggested reviewers: ✨ Finishing Touches📝 Generate docstrings
🧪 Generate unit tests (beta)
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…st-catalog feat(cursor): expose Opus Fast families with live-verified effort tiers
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Summary
Live GetUsableModels (260822, devlog 300) shows the Opus Fast wire ids exist ONLY in effort-suffixed form; the bare id is not_found — which is exactly why
cursor/claude-opus-4-7-fastfailed through the proxy (static catalog sent it bare, "tiers unverified"). A live turn onclaude-opus-4-8-high-fastsucceeded, so the families are callable on this plan tier.discovery.ts:claude-opus-4-7-fastgains its tier picker; addclaude-opus-4-8-fastandclaude-opus-5-fast(CONTEXT_200K, reasoning-effort capable).effort-map.ts: ladders per the dump — 4-7/4-8-fast: low/medium/high/xhigh/max; opus-5-fast: low/medium/high.Verification
bun x tsc --noEmitclean.tests/cursor-static-catalog.test.ts+3 tests (family presence with tier pickers, exact ladders, wire-id derivation incl. no-bare rule and clamping) — 17 pass with cursor-discovery.cursor/claude-opus-4-8-fastturn).Checklist
Summary by CodeRabbit
New Features
Bug Fixes
Tests