Post-audit downstream-LLM-author field test of the shipped
loop/recur surface (DESIGN.md + public examples only). 3 real
iterative programs (Newton isqrt, Collatz, Euclidean gcd) + 5
plausible-mistake negatives + 2 no-termination probes, all run
through the public ail CLI. 0 bugs. 4 working findings on the
milestone's own axes: rejection diagnostics point-exact AND
self-fixing; recur tail-position threads through match/let/outer-if
(spec only showed if); loop composes as a value sub-expression +
byte-stable round-trip; no-termination boundary exact. This
empirically substantiates the "LLM author can now write iterative
programs" claim.
Two orthogonal non-blocking findings, neither in loop/recur scope,
both routed to P2 todos (refused the scope creep into a loop/recur
tidy): niladic (app f) spec_gap independently re-confirms the
existing mut-local-F3 roadmap item (the design-fork decision
deliberately NOT auto-ratified under /boss — parked,
priority-strengthened); module-level (doc) diagnostic-hint friction
(one-line tidy). Boss-verified independently (gcd->27;
recur-outside-loop fires exact).
The standalone loop/recur milestone is fully ratified and CLOSED:
3 iterations + tidy shipped, audit clean (drift resolved, bench
pristine carry-on), fieldtest clean on every axis. Roadmap P0
marked closed.
Brummel
2ed355c6fa