feat(hosted key): Add exa hosted key#3221

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TheodoreSpeaks wants to merge 38 commits intostagingfrom

feat/sim-provided-key

Commits on Feb 13, 2026

feat(hosted keys): Implement serper hosted key
Theodore Li
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Handle required fields correctly for hosted keys
Theodore Li
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Add rate limiting (3 tries, exponential backoff)
Theodore Li
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Add custom pricing, switch to exa as first hosted key
Theodore Li
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Add telemetry
Theodore Li
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Consolidate byok type definitions
Theodore Li
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Add warning comment if default calculation is used
Theodore Li
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Record usage to user stats table
Theodore Li
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Fix unit tests, use cost property
Theodore Li
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Include more metadata in cost output
Theodore Li
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Fix disabled tests
Theodore Li
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Commits on Feb 14, 2026

Fix spacing
Theodore Li
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Fix lint
Theodore Li
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Commits on Feb 16, 2026

Move knowledge cost restructuring away from generic block handler
Theodore Li
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Migrate knowledge unit tests
Theodore Li
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Lint
Theodore Li
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Commits on Mar 5, 2026

Fix broken tests
Theodore Li
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Merge branch 'staging' into feat/sim-provided-key
Theodore Li
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Add user based hosted key throttling
Theodore Li
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Refactor hosted key handling. Add optimistic handling of throttling for custom throttle rules.
Theodore Li
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Remove research as hosted key. Recommend BYOK if throtttling occurs
Theodore Li
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Commits on Mar 6, 2026

Make adding api keys adjustable via env vars
Theodore Li
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Remove vestigial fields from research
Theodore Li
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Make billing actor id required for throttling
Theodore Li
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Switch to round robin for api key distribution
Theodore Li
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Add helper method for adding hosted key cost
Theodore Li
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Strip leading double underscores to avoid breaking change
Theodore Li
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Lint fix
Theodore Li
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Remove falsy check in favor for explicit null check
Theodore Li
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Add more detailed metrics for different throttling types
Theodore Li
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Fix _costDollars field
Theodore Li
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Commits on Mar 7, 2026

Handle hosted agent tool calls
Theodore Li
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Fail loudly if cost field isn't found
Theodore Li
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Remove any type
Theodore Li
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Fix type error
Theodore Li
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Fix lint
Theodore Li
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Fix usage log double logging data
Theodore Li
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Fix test
Theodore Li
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