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Oliver Kieselbach
df640e3684
On 2026-09-25 a Global Settings save from a page loaded before an agent release wrote the whole configuration back and reverted the release's LatestAgentV2* hashes. After that, every 2.0.1465 agent reported IntegrityCheckFailed. The flaw was structural: every writer (portal PUT, plan tiers, three vulnerability-sync stamp paths) replaced the whole row from the copy it held, usually the 5-minute cache.
- IConfigRepository.UpdateAdminConfigurationAsync(mutate, updatedBy) is the one write path. It reads the row fresh with its ETag and applies the mutation to a copy materialized from that read. It computes the changed columns from the converter projections and writes only those onto the freshly read raw entity; a null value drops the column. The replace is conditional, and a conflict triggers a re-read and retry. A no-op writes nothing. Pipeline-owned and unknown columns survive. The full-model SaveAdminConfigurationAsync / SaveConfigurationAsync are removed, and the first row is created with AddEntity.
- PATCH global/config with { fields } (PatchAdminConfigurationRequest) replaces PUT/POST. Its field gate is derived from the persisted columns and rejects server stamps, LatestAgentV2* / LatestBootstrapV2ScriptVersion, PlanTierDefinitionsJson, the sync stamps and redacted placeholders. The route catalog lists PATCH.
- Plan tiers, TriggerMsrcSync, TriggerVulnerabilityDataSync, VulnerabilityDataSyncFunction and VulnerabilityCacheRefreshService.StampAsync each hand in a mutation.
- Tests: AdminConfigurationChangedFieldsTests (stale-page toggle keeps the release hashes, concurrent pipeline write re-read and kept, no-op, rejection, null drop, first row, gate); existing tests adapted; the request guard allows the admin field map.
- Regenerated shared manifest and wire types (web utils + MCP). The web still sends PUT until the web commit that follows the backend deploy.
- The internal pointer is bumped to D-285.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>