Sidecar 0.8 integration boundary

Sidecar 0.8 interoperability

Evals 0.7.1 retains standalone scoring and release-gate ownership. Sidecar supervision outcomes and private-context lifecycle validation are not scores; broader Agent Alone vs Agent + Sidecar evidence remains Sidecar v0.9 work.

Sidecar 0.8 provides Shared/Exclusive context-only, guardrails-only or combined configuration, explicit host context delivery and mandatory guardrail composition. Exclusive rules cannot weaken shared restrictions. Cross-framework privacy, revocation and delegated authority remain v0.9 validation; stable schemas remain v1.0. Native correlated Lens readback requires Lens 0.7.1. All sibling packages stay optional; no dependency floor is increased without a runtime requirement. See the Sidecar integration contract.