claude
bd7585b609
Cycle-close audit for the self-description cycle. Architect: drift_found (mild), core holds -- the gate is pure string shape in core imported by every seam (C28), the engine never evaluates description text (C17/inv 10), determinism pins untouched (C1); the store boundary is gated by construction with the raw write private; Op::Doc is a closed typed construct (C25). Regression: aura-bench green (exit 0) after one cycle-caused infra fix and one ratified re-pin. Infra fix: the bench campaign seeds (BP_SMA_A/B) predate C29 and were refused by the store gate (exit 2, infrastructure-first rule) -- both thread the authored sma_signal meaning line. Ratify: cli_fixed_cost's run_line_fnv moved because bench_sma_a.json now carries its doc -- the blueprint's content id shifts exactly as the spec anticipates for fixtures gaining docs; campaign result fingerprints are unchanged (descriptions stay out of execution, C29). Baselines re-pinned via aura-bench pin (throughput baselines re-pinned in the same sweep, all deltas within tolerance at pin time). Drift disposition: - [high] C29 guarantee overclaim vs emit/binding-column vocabularies -> contract now carries an explicit Scope paragraph naming the residue, tracked as #321 (also covers the [medium] non-roster schema walk gap). - [low] Delay's meaning line cited the stale C5 for the delay register; corrected to C9. refs #316, refs #321
71 lines
4.3 KiB
Markdown
71 lines
4.3 KiB
Markdown
# C29 — Self-description: every surface explains itself
|
|
|
|
**Guarantee.** Every closed-vocabulary entry the binary exposes carries a
|
|
one-line meaning, enforced at the seam where the entry enters the system;
|
|
everything entering the content-addressed store describes itself; a refusal
|
|
for a missing description names the entry, the field, and the rule. One
|
|
shared deterministic gate — `doc_gate` in aura-core, importable by every
|
|
seam per [C28](c28-stratification.md); it fails on an empty/whitespace doc
|
|
and on a doc that normalizes to the entry's own name
|
|
(`DocGateFault::{Empty, RestatesName}`) — guards three seams:
|
|
|
|
1. **Compile/unit seam (engine-shipped).** `NodeSchema.doc` is a required
|
|
field, so the compiler enumerates every construction site; metrics and
|
|
tap slots are schema carriers (`MetricSchema` / `TapSchema`, id + doc);
|
|
blocks (`BlockSchema.doc`, the pre-existing model) and tap folds (the
|
|
registry roster, [C27](c27-declared-taps.md)) already carried theirs.
|
|
The coverage walk (`aura-cli/tests/self_description.rs`) asserts the
|
|
gate over all five vocabularies — the engine satisfies its own law.
|
|
2. **Load seam (extension).** `load_crate` walks every charter-checked
|
|
type id and gates the resolved schema's doc; a fault refuses the load
|
|
naming type and rule (`ProjectError::UndescribedVocabularyEntry`).
|
|
Field presence is compile-enforced for any crate built against the new
|
|
core; the load gate catches the shape violations the compiler cannot
|
|
see across the cdylib boundary — the empty-string alibi and the name
|
|
restatement.
|
|
3. **Register seam (data plane).** The registry's public `put_blueprint`
|
|
parses the canonical bytes and requires a gate-passing doc on the root
|
|
composite and on every named nested composite — the gate guards the
|
|
store boundary itself, so the register verb, every register-then-run
|
|
sugar path, and any future caller are gated by construction. The
|
|
op-script vocabulary carries the `doc` op as the builder `.doc(...)`'s
|
|
twin ([C25](c25-role-model.md): a closed, typed metadata construct).
|
|
Process/campaign documents take an additive-optional top-level
|
|
`description`, gated only when present (`DocFault::BadDescription`).
|
|
|
|
**Scope at this record's writing (#321).** The gate walks five
|
|
vocabularies — process/campaign blocks, metrics, tap slots, tap folds, and
|
|
the closed node roster — plus the document `description` and the three
|
|
seams above. Recorded residue, tracked as #321 and not silently claimed:
|
|
`emit_vocabulary()` and `binding_column_vocabulary()` remain bare name
|
|
arrays, and builder schemas outside the closed node roster (e.g. the
|
|
internal tap recording sink) carry compile-required but shape-unwalked
|
|
docs. Closing #321 widens the walk and removes this paragraph.
|
|
|
|
**Id treatment.** Description fields that serialize participate in the
|
|
content id and are blanked for the identity id, exactly as `Composite.doc`
|
|
(`strip_debug_symbols`); `NodeSchema` is not serialized
|
|
([C24](c24-blueprint-data.md)), so node docs move no id. Documents have no
|
|
identity projection — their pair is: absent `description` is byte-identical
|
|
to the field-less form (existing content ids stable), present participates.
|
|
|
|
**Forbids.** The engine evaluating description text — the gate is
|
|
deterministic string shape, never content judgement (no freetext logic
|
|
hole; C17 / domain invariant 10 untouched). A description influencing
|
|
execution, identity ids, or determinism (C1). Retroactive invalidation of
|
|
already-registered artifacts — the gate guards the write path only (the
|
|
raw in-crate write survives as the store-mechanics and back-compat
|
|
witness: pre-C29 doc-less entries stay readable). Machine-invented meaning
|
|
lines — an authored text is corrected against the source, never weakened
|
|
to an empty string or a name restatement.
|
|
|
|
**Why.** The audience is headless LLM agents and scripts (#319 ruling),
|
|
for whom the binary is the only always-present teacher. Field evidence
|
|
2026-07-22 (#314): an agent holding only the release binary had to recover
|
|
execution semantics and document schemas by CAS forensics — the removed
|
|
failure class is exactly that forensic recovery.
|
|
|
|
Rendering of the carried texts on the help/introspection surfaces is #315;
|
|
the generated agent bootstrap card is #267; a fold introspection surface
|
|
is blocked on #310.
|