Identity
GitHub user authorization creates a rotating host-only session. Repository API access comes from the installed GitHub App.
How the service works
Collection, identity, retention, and reporting are designed around predictable serverless costs.
Repository access
Installation webhooks keep authorized repositories synchronized. Tracking remains an explicit action inside the product.
Collection
Repositories are distributed across 256 daily schedule shards. Changed dates commit atomically to one repository partition.
Reports
Exact daily facts and precomputed rollups power comparisons, trend deltas, and bounded multi-repository queries.