The always-on PROCESS shipped (run_continuous + daemon + CLI), but the claim "it holds
over uptime" was UNFALSIFIED: the existing evals/l10_continuity soak drives the TURN loop
and is disjoint from run_continuous; the daemon path was covered only by ≤5-beat unit
tests. This lane converts "built" → "proven over horizon" for the idle path.
evals/l10_always_on/ mirrors the l10_continuity predicate/mutation harness but drives the
IDLE heartbeat: it seeds a real continuous life (held self + a cognitive turn to excite the
field), runs N beats with NO user turn, and gates four falsifiable predicates, each with a
*_holds (real soak) AND a *_bites (mutation) test per CLAUDE.md schema-as-proof:
- H1 closure — every observed idle beat versor_condition < 1e-6 (held over uptime, READ
never repaired); bites on a breached beat AND on a vacuous no-field soak.
- H2 bounded idle — a no-work beat adds NOTHING to the vault (no idle leak — invisible at
5 beats, fatal at 100k); bites on idle vault growth.
- H3 convergence — a saturated idle life SETTLES and stays settled (no re-awakening), at
rest at the end, closure intact on the tail; bites on never-settling + on re-awakening.
- H4 reboot resume — a reboot mid-soak resumes the SAME life (strict identity guard passes,
pre-reboot DERIVED learning survives, post-reboot closure holds); bites on failed
resume + on lost learning.
Measured (5000 idle beats, reboot@2500, ~20s): ALL gates pass — versor_condition flat at
1.389e-07 (no drift, no repair), vault bounded at 6 (no idle leak), converged at beat 1
with a 4999-beat at-rest tail, reboot resumed the same life with learning intact. This is
the empirical resolution of the L10 riskiest-unknown FOR THE IDLE PATH (the closure-by-
construction ruling covered the field-transition walk; this covers indefinite idle uptime).
Honestly NOT covered (recorded in the report, no silent skip): the continuously-LEARNING
life's resource cost under a sustained new-fact stream (O(n²) snapshot; per-run lived_life)
— out of scope until an afferent/intake feed + incremental persistence exist (the next
frontier).
Run on demand: PYTHONPATH=. python -m evals.l10_always_on [n_beats] [reboot_beat]. Path-
scoped out of CI smoke (like l10_continuity); runs in post-merge full-pytest. Additive — a
new eval lane, no existing files touched. 12/12 lane tests + architectural invariants green.
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