Plan step 3's remaining half, and the one place steps 1-3 add behavior rather
than only characterizing it. Operator decision this session: build the gate NOW
rather than at D2, so the multi-file D2 work is developed with the invariant
already in place.
OKF section 13.1 reads `timestamp` as a legacy stand-in for `generated.at`
only while `generated` is ABSENT. A schema able to name both can therefore
describe a document with neither a valid `generated.at` nor an eligible
fallback. Refused at construction, the same shape as the reserved `verdict`
layer -- and one level below the sketch that was approved, on
`FrontmatterSchema` rather than `BundleProfile`: the schema is the policy that
names frontmatter keys, it is the exact C3 analog, and a profile must build its
schema first, so the stricter placement subsumes the other.
Stated as key names rather than as a judgement on values, deliberately: every
`generated` a schema can express today is a scalar (`_is_legal_value`) and so
malformed as a v0.2 mapping, which makes naming both exactly the hazard. It
narrows when a value model can express a well-formed `generated` -- recorded at
the constant rather than left for a reader to reconstruct.
Behavior-neutral for everything shipped, and not by assertion: DEFAULT emits
`generated` and no `timestamp`, STRICT_V1 the reverse (which is what puts the
wiki on the legacy path rather than in a defect), and the byte-exact golden
suite is green.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01A2aKJxLejT9S8jYwoZ9fut
Kjell Tore Guttormsen
7bc366bc1a