A project that opted out of an always-on rulebook at inception must not see
it anywhere: list_always_on_rules(project_id=) and the subscription-derived
set skip it (an exclusion is total), get_applicable_rules / rules_payload
carry `excluded_always_on` as the seventh key so the departure is visible
wherever the rules are, and the SessionStart block built for a bound project
names it ("Excluded for this project by its inception decision …"). MCP:
list_always_on_rules takes project_id; exclude_always_on_rulebook /
include_always_on_rulebook mirror suppress/unsuppress (owner-only; the
rulebook must be always_on — subscribed rulebooks are left by unsubscribing).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
