When a lesson is answered "no rule fits" (create_lesson / update_lesson on
both doors), the response looks for other no-rule lessons it resembles and,
once there are CONVERGENCE_LESSONS (3) of them, carries `convergence`: the
members, their incidents and projects, and a hint to draft the missing rule
with create_rule (operator approval as always) and point each lesson at it —
or to leave them as lessons when no single choice is right every time.
- convergence_group is the pure bar: distinct LESSONS count, incidents never
stand in for them (one broad lesson cannot trigger it), and a group whose
sources all point at one incident is one event written up several times.
- convergence_for searches lessons by the new one's claim + trigger
(trigger_title) at CONVERGENCE_THRESHOLD 0.65 — above the menu's "worth
showing", below the duplicate gate's "same record" — then keeps the ones
with a lesson_no_rule answer. Fail-open. No sweep, no timer (#4183).
- Defaults stated as defaults (rules 32, 115).
- Tests: the bar (pure), the search with stubs, the door, and the no-rule
filter against Postgres; conftest stubs convergence_for for unit tests.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
