# Provcache Valkey Library Charter

## Mission
- Provide Valkey/Redis-backed caching for Provcache with deterministic keying and TTL behavior.

## Responsibilities
- Keep key prefixing and invalidation deterministic and bounded.
- Propagate cancellation where supported by the client library.
- Avoid full keyspace scans in production paths.

## Required Reading
- docs/modules/prov-cache/architecture.md
- docs/modules/platform/architecture-overview.md

## Working Directory & Scope
- Primary: src/__Libraries/StellaOps.Provcache.Valkey

## Testing Expectations
- Add unit tests for cache hit/miss, TTL handling, and invalidation flows.
- Validate batch operations and pattern invalidation safeguards.

## Working Agreement
- Update sprint status in docs/implplan/SPRINT_*.md and local TASKS.md.
- Keep outputs deterministic and ASCII-only in comments/logs.