Module subscriptions 

Differ for subscriptions. Pair by name; per-subscription granular diff.

CONNECTION strings compare modulo password: a tiny libpq-style tokenizer strips password=… from both sides before text-compare. All other connstr keys participate in diff normally.

Spec: docs/superpowers/specs/2026-05-26-subscriptions-design.md.

Functions

diff_subscriptions

Compute granular subscription changes needed to converge target toward source. Appends all emitted changes to out.