Upstream §10 adds a concept type carrying a sanctioned way to compute a
value. This lands its FORMAT: the five contract fields for emission and
round-trip, and §10.2's one requirement. No execution — upstream defers
the receipt and verdict wire formats, so there is nothing to build a
runtime against.
Two additions, both additive:
- The five fields (`runtime`, `parameters`, `computation`, `executor`,
`attester`) join `OKF_V0_2`'s emission order as one block, internally
in §10.2's own listing order. Without it they still emit — in `emit`'s
sorted tail, where `attester` precedes `runtime`, alphabetical order
standing in for the contract's own. No bundle that carries none of the
keys changes by a byte, and the v0.1 profiles gain nothing.
- `FrontmatterSchema.required_by_type` expresses "`runtime` is REQUIRED
for this type and no other" — the first rule here keyed off a
frontmatter VALUE rather than a key. It cannot be `required`, which
would demand `runtime` of every document. A type the mapping does not
name carries no extra requirement, which is what keeps it inside §14:
a consumer must not reject on an unknown `type`, so a conditional
keyed on an unknown type stays silent rather than guesses.
Also pinned, measured today: the line-oriented parser cannot read §10's
canonical BLOCK form. `executor` and `attester` both carry a `resource`,
and with no indentation model the second overwrites the first —
`executor.resource` is lost silently, no error. Characterized rather
than fixed: reading that form needs the structured reader (D1b), and a
half-reader that drops half a contract is worse than one that never
claimed to read it. CLAUDE.md gains the invariant that falls out of it:
we emit flow form, never block, or we write bundles we cannot read back.
578 tests, mypy --strict clean, goldens byte-identical.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KKKMwi7e7PVHoFW6dJK5XP
