Documentation only. Not dispatched - two items need ratification.
Resolves the open accidental_extensions pin as SUBSET, not normalization.
SetTuningContextOp carries a new type holding exactly the five wire-bearing
fields, and reduction leaves accidental_extensions untouched rather than
clearing it.
The deciding argument is that this costs no wire design at all:
ScoreTuningContext::enc already encodes exactly those five fields in exactly
that order, so the subset type's canonical encoding is byte-for-byte the
current one. It is a type-level narrowing, and canonical_value! still applies.
Normalization would instead make correctness depend on clearing a field at
every construction site, enforced by nothing the compiler or the codec can see
- canonical_value! compares bytes and never the originating value, so a field
that never reached the bytes is structurally invisible to it. That is the same
hand-maintained-discipline shape that went stale four times at Push 4a and six
times at G2a. Preserving is also semantically right: the operation carries no
information about the field, so clearing it would silently erase a live
registry extension the wire cannot even record.
Nothing in production populates accidental_extensions - every non-empty
reference in the tree is a test - and the text projection drops it too, so the
subset type ratifies the status quo rather than changing it.
Ten pins. The accept-set raise is charged here because minimal stamping is a
function of each payload's value and ScoreTuningContext is the only genesis
payload born at major 3. bundle.rs:56 does not merely document the cap, it
asserts that no operation payload embeds the tuning context - a sentence this
rung falsifies, so it must be rewritten rather than left beside a changed
number.
Awaiting ratification: the subset type's name, and epoch 10 for kind 34, which
is the first exercise of the G-minor ladder's own growth path. G-minor's
wildcard-free introduced_minor means kind 34 cannot compile without one.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QjsEnYhm1gPpf6ii2iFxFV
