chore(codegen): daily schema refresh (2026-05-28)

[timgl]

Summary

Daily OpenAPI schema refresh from https://us.posthog.com/api/schema/?format=json, filtered by openapi-filter.yaml.

• Spec diff size: ~430 lines in src/generated/api.d.ts; schema-only (component additions, field additions, one rename). No path or operationId additions/removals affecting managed resources.
• openapi-filter.yaml: unchanged.

New operationIds added to filter

None. The drift detector flagged ~1000 operationIds in the live spec that are not in the filter, but none belong to a managed resource family in a way that would extend declarative management:

• The unmanaged operations are auxiliary endpoints — activity logs, sharing, bulk-tag updates, collaborators, suggestions, thresholds, snapshotting, exposure-cohort creation, etc. — orthogonal to the create / read / update / destroy lifecycle this package manages.
• Putting them through the filter would inflate api.d.ts (already ~13k LOC trimmed) without enabling new IaC capabilities.
• Possible candidates if scope expands later: event_schemas_partial_update / event_schemas_update (event_schemas resource currently has list/create/destroy only), experiments_update, experiment_holdouts_update, experiment_saved_metrics_update, cohorts_update, event_definitions_update (PUT variants alongside the existing PATCH partial_update — none are needed today).

Resources touched

None. typecheck and vitest are clean against the regenerated types. Only src/generated/api.d.ts changed.

Notable schema-level additions consumed transitively by existing clients:

• Endpoint* schemas gained a tags field (writable on create/update, read-only on responses).
• ExperimentApiEventSource gained math, math_property, math_hogql, math_group_type_index.
• ExperimentMetric gained denominator_outlier_handling, ignore_zeros, and winsorization controls.
• New components: CalendarHeatmapFilter, DataWarehouseSyncWarning, ExperimentMetricOutlierHandling, ParserMode, Response7.
• Rename: AggregationPropertyType1 → AggregationPropertyType (no consumer in this repo).

Unresolved drift

None.

• No managed operationIds disappeared from the live spec (verified — all 71 still present).
• No type breaks in src/resources/*/client.ts or pipeline.ts.
• One flaky timeout in src/pull/run.test.ts passes on retry; unrelated to schema.

Test plan

• pnpm install --frozen-lockfile
• pnpm codegen
• pnpm typecheck
• pnpm test (re-ran a flaky timeout in pull/run.test.ts — passes in isolation, not schema-related)

TaskRun: 7ee22061-99f6-46b7-b5e3-a4c44c9e8f4b