Choose or review a local outbound proxy when discovery or routing changes require client releases, a canary or shadow needs routing outside the app, or retries overlap across app, proxy and mesh. Define the listener, policy ownership, deadlines and failure behavior. Covers shard-map consumption and experiment routing, not shard algorithms (sharding-and-partitioning), container lifecycle (sidecar-pattern), or output normalization (adapter-sidecar-pattern).
