Module reducer 

Modules

connection 🔒

Connection-lifecycle reducer handlers. Extracted from reducer/mod.rs in task #182 PR-E for navigability.

pool 🔒

Pool-related reducer handlers. Extracted from reducer/mod.rs in task #182 PR-B for navigability.

saga 🔒

Saga-related reducer handlers. Extracted from reducer/mod.rs in task #182 PR-D for navigability.

window 🔒

Window lifecycle reducer handlers. Extracted from reducer/mod.rs in task #182 PR-C for navigability.

Structs

Ctx

Context the reducer needs but can’t read from State (clocks, connection identity). Passed in per-call so update remains pure.

Functions

handle_report_host_counts 🔒

Phase B.4 follow-up — drift check. Compares host-reported counts to launcher mirror counts; emits DriftDetected for each disagreeing dimension. Returns [] when both counts match (the happy path; mirrors are in sync).

update

Apply one Command to State, returning the resulting Events. State is mutated in place. Total function — never panics on input (panics are reserved for internal invariant violations).