Operator corrected two things about the brief committed in 3086e8b/3252b51.
Provenance: the operator watched the recording and identifies Boris Cherny on
stage, so the attribution is confirmed by direct observation, not a channel's
claim. The verbatim figures (80 %, "more intelligent without the prompts") still
reach us through the summary's editing and stay at that confidence level. §1 now
carries both levels separately, and the register source string reflects the split
instead of flattening to "unverified".
Design: "start with what it must have" is the constraint the whole feature turns
on, so it is a hard constraint (§6.0), not a candidate-shape detail. Model
capability erodes compensatory instructions ("read the whole file first") and
does nothing to load-bearing local facts ("only Forgejo", "bash is 3.2", the test
command) — the model isn't failing at intelligence there, it cannot know. A tool
that treats them alike deletes the Forgejo constraint because Opus 5 "is smart
enough now". Rebuild is therefore three tiers: floor restored immediately, earned
returns on repeated stumbling, dead never comes back. Policy prohibitions stay in
the floor by decision rather than classification — asymmetric cost, cheap to keep.
Consequences threaded through: §5 disqualifies any shape that cannot express the
distinction, §7.2 becomes the core open question (age and class are independent
signals, so age alone can never carry the call), and §8 gains a blocking floor
test with a hand-built fasit and named must-survive items.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JNrtHo9hKSLKNyMS6b4Zuy