diff --git a/.changeset/error-code-ledger-stored-type-not-canonical-two-producers.md b/.changeset/error-code-ledger-stored-type-not-canonical-two-producers.md
new file mode 100644
index 0000000000..e2fbf83209
--- /dev/null
+++ b/.changeset/error-code-ledger-stored-type-not-canonical-two-producers.md
@@ -0,0 +1,17 @@
+---
+"@objectstack/spec": patch
+---
+
+docs(spec): `STORED_TYPE_NOT_CANONICAL` ledger comment names both producers and their atomicity (#9361)
+
+The ledger entry at `error-code-ledger.zod.ts:381` described `STORED_TYPE_NOT_CANONICAL`'s
+only producer as the publish pre-flight ("refused at the publish pre-flight, batch-atomic").
+PR #9360 (#9174) added a second producer — `revertCommit`'s restore limb, which refuses
+per-item on its existing `failed[]` channel and is explicitly NOT batch-atomic — leaving the
+comment naming one of two producers, with the wrong atomicity for the one it omitted.
+
+The comment now names both: the publish pre-flight (batch-atomic, `#8908`) and
+`revertCommit`'s restore limb (per-item on `failed[]`, NOT batch-atomic, `#9174`).
+
+Text-only change — accept/reject behavior, the error code, and its envelope are all
+unchanged.
diff --git a/packages/spec/src/api/error-code-ledger.zod.ts b/packages/spec/src/api/error-code-ledger.zod.ts
index 0d00a89ad0..4f5be7854d 100644
--- a/packages/spec/src/api/error-code-ledger.zod.ts
+++ b/packages/spec/src/api/error-code-ledger.zod.ts
@@ -378,7 +378,7 @@ export const ERROR_CODE_LEDGER = {
     'QUERY_OBJECT_MISMATCH',
     'REGISTRY_TYPE_NOT_CANONICAL',  // [#9111] a SchemaRegistry overlay entry was offered a non-canonical metadata `type` — the mint door asserts, the caller folds
     'ROLLED_BACK',             // atomic data-batch row was written, then undone by the batch rollback (#4793)
-    'STORED_TYPE_NOT_CANONICAL',  // [#8908] a package draft is stored under a non-canonical metadata type (pre-#7894 second-namespace residue) — refused at the publish pre-flight, batch-atomic
+    'STORED_TYPE_NOT_CANONICAL',  // [#8908] a package draft is stored under a non-canonical metadata type (pre-#7894 second-namespace residue) — refused at the publish pre-flight, batch-atomic; [#9174] also refused on `revertCommit`'s restore limb, per-item on `failed[]`, NOT batch-atomic
     'TENANT_SCOPE_REQUIRED',      // [#7780] destructive call named neither an organization nor an explicit cross-tenant intent; needs an explicit opt-in
     'UNSUPPORTED_QUERY_PARAM',
     'VALIDATION_FAILED',