 freemo
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134dce896a
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feat(provider): add cost controls and fallback
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Add token/cost tracking, budget enforcement (per-plan and per-day),
provider fallback selection with capability filtering, and cost
metadata for plan models.
New modules:
- providers/cost_table.py: CostEntry + ProviderCostTable with default
pricing for OpenAI, Anthropic, Google, Groq, Together, Cohere, Mock
- providers/cost_tracker.py: BudgetStatus enum, BudgetCheckResult,
CostTracker with warn-at-90%/block-at-100% enforcement
- providers/fallback_selector.py: FallbackSelector with capability
filtering (tool_calls, streaming, vision, json_mode) and budget
- domain/models/core/cost_metadata.py: CostMetadata + BudgetExhaustionEvent
Modified:
- config/settings.py: budget_per_plan, budget_per_day, fallback_providers
- domain/models/core/plan.py: cost_metadata field + CLI dict surfacing
- providers/__init__.py: public exports for new classes
Testing:
- 71 Behave scenarios in features/cost_controls.feature (all pass)
- 6 Robot Framework integration tests (all pass)
- ASV benchmarks in benchmarks/cost_controls_bench.py
- nox lint, typecheck, format, docs, build, dead_code, security_scan pass
Closes #324
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2026-02-25 12:08:01 -05:00 |
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