MCP catalog coherence lab

Replay a bounded, networkless client event script. The receipt proves only this simulator’s cache decisions; it does not prove server snapshot isolation or notification delivery.

Event script

FixtureNormalized events (JSON)

Decision

Safety and limits

At most 64 events, 16 pages, and 128 tools; every string is length-bounded before simulation.
No network, storage, credentials, user code, selectors, or HTML are accepted.
Authorization partitions are aliases for testing. Never paste bearer tokens or personal data.
A digest fence is a client pattern, not a protocol guarantee.