An uppercase namespace is refused with its reason named

outcome

Execute the lowercase-namespace clause of the ID grammar.

Examples

Given the authored identifier {identifier: "Spec:orders.create-order"}
When the identifier is parsed
Then parsing {outcome: "is refused"}
Then the refusal names the reason {reason: "namespace must be lowercase"}

Verifier bindings

• test:protocol.stable-ids.malformed-refusal · the malformed point verifies the lowercase-namespace refusal · anchored · test anchor binding present · test/self-hosting-model.test.ts:112

  External run evidence from test/self-hosting-model.test.ts

  Test anchors: test:protocol.anchors.lookalike-refusal, test:protocol.anchors.physical-identity, test:protocol.stable-ids.malformed-refusal, test:protocol.stable-ids.namespaced-round-trip, test:protocol.stable-ids.unsectioned-address-refused. Specs verified by those bindings: spec:model.anchors, spec:model.anchors.lookalike-refusal, spec:model.anchors.physical-identity, spec:model.stable-ids, spec:model.stable-ids.malformed-refusal, spec:model.stable-ids.namespaced-round-trip, spec:model.stable-ids.unsectioned-address-refused.

  Run 1: external run evidence from vitest 4.1.10

  Build: CI 391 · Branch: cursor/media-plan-and-articles-09b1 · Commit: 076cd4f1f85640d8236e5cca1bffffa68ab79a33 · Start: 2026-10-31T15:32:20.471Z · Stop: 2026-10-31T15:34:02.073Z

  Name	Suite	Result	Duration
  executes the bound example against a fresh world	A namespaced dotted path with a sub-part survives parsing unchanged (spec:model.stable-ids.namespaced-round-trip)	passed	2.33 ms
  executes the bound example against a fresh world	An uppercase namespace is refused with its reason named (spec:model.stable-ids.malformed-refusal)	passed	0.39 ms
  executes the bound example against a fresh world	A `#` sub-part without its section is refused with its reason named (spec:model.stable-ids.unsectioned-address-refused)	passed	0.3 ms
  executes the bound example against a fresh world	A consumer-local lookalike builder mints no anchor and no finding (spec:model.anchors.lookalike-refusal)	passed	19.13 ms
  executes the bound example against a fresh world	A deep relative import that resolves to the Protocol builders is trusted (spec:model.anchors.physical-identity)	passed	8.59 ms

Requirement drawing

• Satisfying or referencing units: no recorded binding.

Decisions

No decision record named.

No implementation neighborhood recorded.

Runtime observation: not tracked.

Runtime observation: not tracked.

Build attestations: not tracked.

Deployments: not tracked.

Bills of materials: not tracked.