diff --git a/agent-consumption.md b/agent-consumption.md
index 0d2e5b4..8db80d6 100644
--- a/agent-consumption.md
+++ b/agent-consumption.md
@@ -21,7 +21,7 @@ flowchart LR
     E -->|3 dispatch record| A
     A -->|4 invoke dispatched skill| S[Action skill<br/>e.g. al-code-review]
     S -->|5 execute| P[Source → Relevance<br/>→ Worklist → Action<br/>reading READ · DO on demand]
-    P -->|6 emit| R[Findings · References<br/>· Confidence]
+    P -->|6 emit| R[Findings · Domain labels<br/>· References · Confidence]
     R -->|7 integrate| O
 ```
 
@@ -65,6 +65,7 @@ The output contract is defined in the DO meta-skill so that every action skill 
 
 - **Outcome** — `completed`, `not-applicable`, `no-knowledge`, `partial`, or `failed`. An orchestrator can distinguish a clean run from a no-op from a failure without guessing.
 - **Findings** — what the skill observed (severity, message, optional location).
+- **Domain** — the producer-owned, human-readable display label on each review finding.
 - **References** — structured objects (`path` plus optional commit `sha`) pointing to the knowledge files that informed each finding.
 - **Confidence** — per-finding evidence strength.
 - **Suppressed** — knowledge files that were discarded by layer precedence or configuration, so reviewers can see what was overridden.
@@ -78,12 +79,12 @@ The orchestrator turns findings into PR comments, build gates, or IDE diagnostic
 
 BCQuality is an **additive** knowledge layer. The agent surfaces two kinds of findings, both shaped to the same DO output contract:
 
-- **Knowledge-backed findings** carry one or more entries in `references[]` pointing at BCQuality knowledge files. Their `id` is the primary file's repo-relative path. These are produced by leaf sub-skills and rolled up by super-skills.
-- **Agent findings** are surfaced by a super-skill from its own self-review pass when no BCQuality knowledge file backs the concern. They are tagged with `from-sub-skill: "agent"`, carry an empty `references: []`, use a slug `id` prefixed `agent:`, and have `confidence` capped at `medium`. Their `message` is self-contained because there is no knowledge-file footer to fall back on.
+- **Knowledge-backed findings** carry one or more entries in `references[]` pointing at BCQuality knowledge files. Their `id` is the primary file's repo-relative path. Leaf sub-skills set `domain` to their human-readable display label, and super-skills preserve it verbatim during rollup.
+- **Agent findings** carry an empty `references: []`, use a slug `id` prefixed `agent:`, and have `confidence` capped at `medium`. A leaf can emit one strictly within its own domain and uses that leaf's display label. A super-skill can emit a cross-cutting agent finding with `from-sub-skill: "agent"` and `domain: "Agent"`. Their `message` is self-contained because there is no knowledge-file footer to fall back on.
 
-Before a super-skill emits an agent finding, it validates the candidate against the BCQuality knowledge already loaded for the task: a matching file upgrades the candidate to a knowledge-backed finding (and merges or deduplicates against the relevant sub-skill output); a contradicting file suppresses the candidate. Only candidates with no BCQuality coverage become agent findings.
+Before a skill emits an agent finding, it validates the candidate against the BCQuality knowledge already loaded for the task: a matching file upgrades the candidate to a knowledge-backed finding (and merges or deduplicates against relevant existing output); a contradicting file suppresses the candidate. Only candidates with no BCQuality coverage become agent findings.
 
-Orchestrators MAY render the two kinds differently — for example, by labelling agent findings or routing them to a separate review domain — and MAY apply independent severity floors. The `from-sub-skill: "agent"` marker is the contract.
+Orchestrators MUST tolerate an absent `domain` in reports from older producers. When it is present, treat it as display text rather than an identifier: preserve the full string and its case, whitespace, punctuation, and non-ASCII characters, escaping only for the target rendering format. Do not tokenize it on spaces or use a lowercased or slugified form as the sole metadata or deduplication key, because distinct labels can collapse to the same slug. Retain the exact string, use a lossless encoding, or use a collision-resistant digest instead. Orchestrators MAY render knowledge-backed and agent findings differently and MAY apply independent severity floors; `references: []` and the `agent:` id prefix distinguish agent findings, while `from-sub-skill: "agent"` identifies those emitted by the super-skill itself.
 
 ## Why this architecture
 
diff --git a/microsoft/skills/review/al-appsource-review.md b/microsoft/skills/review/al-appsource-review.md
index 59f2208..43a2e20 100644
--- a/microsoft/skills/review/al-appsource-review.md
+++ b/microsoft/skills/review/al-appsource-review.md
@@ -86,7 +86,7 @@ Outcome selection:
 
 ## Output
 
-Output conforms to the DO output contract. A populated example:
+Output conforms to the DO output contract. Every finding this skill emits MUST set `findings[].domain` to `"AppSource"`. A populated example:
 
 ```json
 {
@@ -109,6 +109,7 @@ Output conforms to the DO output contract. A populated example:
         { "path": "microsoft/knowledge/appsource/object-affixes-prevent-collisions.md" }
       ],
       "confidence": "high",
+      "domain": "AppSource",
       "suggested-code": "field(50100; \"Loyalty Points ABC\"; Integer)"
     }
   ],
diff --git a/microsoft/skills/review/al-breaking-changes-review.md b/microsoft/skills/review/al-breaking-changes-review.md
index 9bd6e12..82aeda0 100644
--- a/microsoft/skills/review/al-breaking-changes-review.md
+++ b/microsoft/skills/review/al-breaking-changes-review.md
@@ -89,7 +89,7 @@ Outcome selection:
 
 ## Output
 
-Output conforms to the DO output contract. A populated example:
+Output conforms to the DO output contract. Every finding this skill emits MUST set `findings[].domain` to `"Breaking Changes"`. A populated example:
 
 ```json
 {
@@ -112,7 +112,8 @@ Output conforms to the DO output contract. A populated example:
       "references": [
         { "path": "microsoft/knowledge/breaking-changes/do-not-change-published-procedure-signatures.md" }
       ],
-      "confidence": "high"
+      "confidence": "high",
+      "domain": "Breaking Changes"
     },
     {
       "id": "microsoft/knowledge/breaking-changes/choose-access-modifiers-deliberately.md",
@@ -125,7 +126,8 @@ Output conforms to the DO output contract. A populated example:
       "references": [
         { "path": "microsoft/knowledge/breaking-changes/choose-access-modifiers-deliberately.md" }
       ],
-      "confidence": "medium"
+      "confidence": "medium",
+      "domain": "Breaking Changes"
     }
   ],
   "suppressed": []
diff --git a/microsoft/skills/review/al-code-review.md b/microsoft/skills/review/al-code-review.md
index 0f79bd6..9b3f934 100644
--- a/microsoft/skills/review/al-code-review.md
+++ b/microsoft/skills/review/al-code-review.md
@@ -79,8 +79,8 @@ For each sub-skill in the worklist, executed one at a time per the discipline ab
 1. Invoke the sub-skill with the orchestrator's inputs, passing only the subset each sub-skill declares in its `inputs`.
 2. Capture the sub-skill's complete findings-report verbatim and append it to `sub-results`.
 3. If the sub-skill's `outcome` is `failed`, stop here for this sub-skill: its findings are not reliable per the DO contract and MUST NOT be copied into the super-skill's top-level `findings[]` or counted in `summary.counts`.
-4. Otherwise, compare each entry from the sub-skill's `findings[]` with findings already rolled up. Two findings are duplicates when they point to the same file and overlapping line/range and prescribe materially the same correction, even when their knowledge-file IDs differ. Merge duplicates instead of appending both: keep the more specific domain owner, use its reference as `references[0]` and therefore as `id`, append the other references as supporting references, keep the highest severity and confidence justified by either report, and preserve one self-contained message. Article and leaf ownership notes decide specificity; do not choose by execution order.
-5. Append each non-duplicate finding, setting `from-sub-skill` to the sub-skill's `skill.id`. For non-citation findings (those whose `id` is a skill-defined slug rather than a reference path), prefix `id` with `<from-sub-skill>:` to prevent collisions across sub-skills. Other finding fields are preserved.
+4. Otherwise, compare each entry from the sub-skill's `findings[]` with findings already rolled up. Two findings are duplicates when they point to the same file and overlapping line/range and prescribe materially the same correction, even when their knowledge-file IDs differ. Merge duplicates instead of appending both: keep the more specific domain owner, preserve that finding's optional `domain` field verbatim (including its absence), use its reference as `references[0]` and therefore as `id`, append the other references as supporting references, keep the highest severity and confidence justified by either report, and preserve one self-contained message. Article and leaf ownership notes decide specificity; do not choose by execution order.
+5. Append each non-duplicate finding, setting `from-sub-skill` to the sub-skill's `skill.id` and preserving its optional `domain` field verbatim, including its absence. For non-citation findings (those whose `id` is a skill-defined slug rather than a reference path), prefix `id` with `<from-sub-skill>:` to prevent collisions across sub-skills. Other finding fields are preserved.
 
 ### Agent self-review pass
 
@@ -93,11 +93,12 @@ Frame the pass by cross-cutting concerns — architecture, error handling, resou
 For every candidate the agent identifies in this pass:
 
 1. **Validate against BCQuality knowledge.** Check the candidate against the knowledge files the sub-skills have already loaded for this task (visible via their `references` and `suppressed` lists in `sub-results`).
-   - If a BCQuality knowledge file matches the candidate, upgrade it to a knowledge-backed finding: cite the file in `references`, set `id` to the file's path, set `from-sub-skill` to the sub-skill that owns that knowledge domain, and merge with or deduplicate against any sub-skill finding that already covers the same concern at the same location.
+   - If a BCQuality knowledge file matches the candidate, upgrade it to a knowledge-backed finding: cite the file in `references`, set `id` to the file's path, set `from-sub-skill` to the sub-skill that owns that knowledge domain, set `domain` to the human-readable label required by that sub-skill's Output contract, and merge with or deduplicate against any sub-skill finding that already covers the same concern at the same location.
    - If a BCQuality knowledge file **explicitly contradicts** the candidate (its `## Best Practice` or `## Anti Pattern` says the opposite of what the agent flagged), suppress the candidate and do not surface it.
    - Otherwise the candidate has no BCQuality coverage; emit it as a super-skill agent finding.
 2. **Emit agent finding.** Per DO's *Agent findings* rules:
    - `from-sub-skill: "agent"` (the super-skill itself produced it)
+   - `domain: "Agent"` (the display label for super-skill cross-cutting findings)
    - `references: []`
    - `id` is a skill-defined slug prefixed with `agent:` (for example, `agent:missing-error-handling-on-http-call`).
    - `confidence` capped at `medium`.
@@ -149,7 +150,8 @@ Output conforms to the DO output contract, extended with `sub-results` and `skip
         { "path": "microsoft/knowledge/performance/apply-filters-before-iterating.md" }
       ],
       "confidence": "high",
-      "from-sub-skill": "al-performance-review"
+      "from-sub-skill": "al-performance-review",
+      "domain": "Performance"
     },
     {
       "id": "microsoft/knowledge/performance/use-setloadfields-for-partial-records.md",
@@ -163,7 +165,8 @@ Output conforms to the DO output contract, extended with `sub-results` and `skip
         { "path": "microsoft/knowledge/performance/use-setloadfields-for-partial-records.md" }
       ],
       "confidence": "high",
-      "from-sub-skill": "al-performance-review"
+      "from-sub-skill": "al-performance-review",
+      "domain": "Performance"
     },
     {
       "id": "microsoft/knowledge/security/secrettext-for-credentials.md",
@@ -178,7 +181,8 @@ Output conforms to the DO output contract, extended with `sub-results` and `skip
         { "path": "microsoft/knowledge/security/secrettext-for-credentials.md" }
       ],
       "confidence": "high",
-      "from-sub-skill": "al-security-review"
+      "from-sub-skill": "al-security-review",
+      "domain": "Security"
     },
     {
       "id": "microsoft/knowledge/security/secrets-isolated-storage.md",
@@ -192,7 +196,8 @@ Output conforms to the DO output contract, extended with `sub-results` and `skip
         { "path": "microsoft/knowledge/security/secrets-isolated-storage.md" }
       ],
       "confidence": "medium",
-      "from-sub-skill": "al-security-review"
+      "from-sub-skill": "al-security-review",
+      "domain": "Security"
     },
     {
       "id": "agent:missing-error-handling-on-http-client",
@@ -205,7 +210,8 @@ Output conforms to the DO output contract, extended with `sub-results` and `skip
       },
       "references": [],
       "confidence": "medium",
-      "from-sub-skill": "agent"
+      "from-sub-skill": "agent",
+      "domain": "Agent"
     }
   ],
   "suppressed": [],
@@ -230,7 +236,8 @@ Output conforms to the DO output contract, extended with `sub-results` and `skip
           "references": [
             { "path": "microsoft/knowledge/performance/apply-filters-before-iterating.md" }
           ],
-          "confidence": "high"
+          "confidence": "high",
+          "domain": "Performance"
         },
         {
           "id": "microsoft/knowledge/performance/use-setloadfields-for-partial-records.md",
@@ -243,7 +250,8 @@ Output conforms to the DO output contract, extended with `sub-results` and `skip
           "references": [
             { "path": "microsoft/knowledge/performance/use-setloadfields-for-partial-records.md" }
           ],
-          "confidence": "high"
+          "confidence": "high",
+          "domain": "Performance"
         }
       ],
       "suppressed": []
@@ -268,7 +276,8 @@ Output conforms to the DO output contract, extended with `sub-results` and `skip
           "references": [
             { "path": "microsoft/knowledge/security/secrettext-for-credentials.md" }
           ],
-          "confidence": "high"
+          "confidence": "high",
+          "domain": "Security"
         },
         {
           "id": "microsoft/knowledge/security/secrets-isolated-storage.md",
@@ -281,7 +290,8 @@ Output conforms to the DO output contract, extended with `sub-results` and `skip
           "references": [
             { "path": "microsoft/knowledge/security/secrets-isolated-storage.md" }
           ],
-          "confidence": "medium"
+          "confidence": "medium",
+          "domain": "Security"
         }
       ],
       "suppressed": []
diff --git a/microsoft/skills/review/al-data-modeling-review.md b/microsoft/skills/review/al-data-modeling-review.md
index 8188381..2386613 100644
--- a/microsoft/skills/review/al-data-modeling-review.md
+++ b/microsoft/skills/review/al-data-modeling-review.md
@@ -87,7 +87,7 @@ Outcome selection:
 
 ## Output
 
-Output conforms to the DO output contract. A populated example:
+Output conforms to the DO output contract. Every finding this skill emits MUST set `findings[].domain` to `"Data Modeling"`. A populated example:
 
 ```json
 {
@@ -110,6 +110,7 @@ Output conforms to the DO output contract. A populated example:
         { "path": "microsoft/knowledge/data-modeling/set-last-date-modified-in-onmodify-and-onrename.md" }
       ],
       "confidence": "high",
+      "domain": "Data Modeling",
       "suggested-code": "trigger OnRename()\nbegin\n    \"Last Date Modified\" := Today();\nend;"
     }
   ],
diff --git a/microsoft/skills/review/al-error-handling-review.md b/microsoft/skills/review/al-error-handling-review.md
index 01832d7..39851ac 100644
--- a/microsoft/skills/review/al-error-handling-review.md
+++ b/microsoft/skills/review/al-error-handling-review.md
@@ -87,7 +87,7 @@ Outcome selection:
 
 ## Output
 
-Output conforms to the DO output contract. A populated example:
+Output conforms to the DO output contract. Every finding this skill emits MUST set `findings[].domain` to `"Error Handling"`. A populated example:
 
 ```json
 {
@@ -110,7 +110,8 @@ Output conforms to the DO output contract. A populated example:
       "references": [
         { "path": "microsoft/knowledge/error-handling/prefer-errorinfo-for-actionable-errors.md" }
       ],
-      "confidence": "high"
+      "confidence": "high",
+      "domain": "Error Handling"
     },
     {
       "id": "microsoft/knowledge/error-handling/errortype-internal-vs-client-for-diagnostics.md",
@@ -123,7 +124,8 @@ Output conforms to the DO output contract. A populated example:
       "references": [
         { "path": "microsoft/knowledge/error-handling/errortype-internal-vs-client-for-diagnostics.md" }
       ],
-      "confidence": "medium"
+      "confidence": "medium",
+      "domain": "Error Handling"
     }
   ],
   "suppressed": []
diff --git a/microsoft/skills/review/al-events-review.md b/microsoft/skills/review/al-events-review.md
index d9710bc..de2700c 100644
--- a/microsoft/skills/review/al-events-review.md
+++ b/microsoft/skills/review/al-events-review.md
@@ -96,7 +96,7 @@ Outcome selection:
 
 ## Output
 
-Output conforms to the DO output contract. A populated example:
+Output conforms to the DO output contract. Every finding this skill emits MUST set `findings[].domain` to `"Events"`. A populated example:
 
 ```json
 {
@@ -119,7 +119,8 @@ Output conforms to the DO output contract. A populated example:
       "references": [
         { "path": "microsoft/knowledge/events/publish-thin-onbefore-onafter-integration-events.md" }
       ],
-      "confidence": "high"
+      "confidence": "high",
+      "domain": "Events"
     },
     {
       "id": "microsoft/knowledge/events/use-ishandled-to-make-base-behaviour-overridable.md",
@@ -132,7 +133,8 @@ Output conforms to the DO output contract. A populated example:
       "references": [
         { "path": "microsoft/knowledge/events/use-ishandled-to-make-base-behaviour-overridable.md" }
       ],
-      "confidence": "high"
+      "confidence": "high",
+      "domain": "Events"
     }
   ],
   "suppressed": []
diff --git a/microsoft/skills/review/al-interfaces-review.md b/microsoft/skills/review/al-interfaces-review.md
index 62bcfaf..0031e8f 100644
--- a/microsoft/skills/review/al-interfaces-review.md
+++ b/microsoft/skills/review/al-interfaces-review.md
@@ -87,7 +87,7 @@ Outcome selection:
 
 ## Output
 
-Output conforms to the DO output contract. A populated example:
+Output conforms to the DO output contract. Every finding this skill emits MUST set `findings[].domain` to `"Interfaces"`. A populated example:
 
 ```json
 {
@@ -110,7 +110,8 @@ Output conforms to the DO output contract. A populated example:
       "references": [
         { "path": "microsoft/knowledge/interfaces/prefer-interface-over-case-branching.md" }
       ],
-      "confidence": "high"
+      "confidence": "high",
+      "domain": "Interfaces"
     },
     {
       "id": "microsoft/knowledge/interfaces/set-defaultimplementation-on-enum.md",
@@ -123,7 +124,8 @@ Output conforms to the DO output contract. A populated example:
       "references": [
         { "path": "microsoft/knowledge/interfaces/set-defaultimplementation-on-enum.md" }
       ],
-      "confidence": "high"
+      "confidence": "high",
+      "domain": "Interfaces"
     }
   ],
   "suppressed": []
diff --git a/microsoft/skills/review/al-performance-review.md b/microsoft/skills/review/al-performance-review.md
index a4bf72d..3262179 100644
--- a/microsoft/skills/review/al-performance-review.md
+++ b/microsoft/skills/review/al-performance-review.md
@@ -88,7 +88,7 @@ Outcome selection:
 
 ## Output
 
-Output conforms to the DO output contract. A populated example:
+Output conforms to the DO output contract. Every finding this skill emits MUST set `findings[].domain` to `"Performance"`. A populated example:
 
 ```json
 {
@@ -111,7 +111,8 @@ Output conforms to the DO output contract. A populated example:
       "references": [
         { "path": "microsoft/knowledge/performance/apply-filters-before-iterating.md" }
       ],
-      "confidence": "high"
+      "confidence": "high",
+      "domain": "Performance"
     },
     {
       "id": "microsoft/knowledge/performance/use-setloadfields-for-partial-records.md",
@@ -124,7 +125,8 @@ Output conforms to the DO output contract. A populated example:
       "references": [
         { "path": "microsoft/knowledge/performance/use-setloadfields-for-partial-records.md" }
       ],
-      "confidence": "high"
+      "confidence": "high",
+      "domain": "Performance"
     }
   ],
   "suppressed": []
diff --git a/microsoft/skills/review/al-privacy-review.md b/microsoft/skills/review/al-privacy-review.md
index 0ed7de9..edbf197 100644
--- a/microsoft/skills/review/al-privacy-review.md
+++ b/microsoft/skills/review/al-privacy-review.md
@@ -84,7 +84,7 @@ Outcome selection:
 
 ## Output
 
-Output conforms to the DO output contract. A populated example:
+Output conforms to the DO output contract. Every finding this skill emits MUST set `findings[].domain` to `"Privacy"`. A populated example:
 
 ```json
 {
@@ -107,7 +107,8 @@ Output conforms to the DO output contract. A populated example:
       "references": [
         { "path": "microsoft/knowledge/privacy/data-classification-required-on-pii-fields.md" }
       ],
-      "confidence": "high"
+      "confidence": "high",
+      "domain": "Privacy"
     }
   ],
   "suppressed": []
diff --git a/microsoft/skills/review/al-query-review.md b/microsoft/skills/review/al-query-review.md
index 412ecbc..c4ea895 100644
--- a/microsoft/skills/review/al-query-review.md
+++ b/microsoft/skills/review/al-query-review.md
@@ -53,4 +53,4 @@ Outcome selection follows DO: `completed`, `no-knowledge`, `not-applicable`, `pa
 
 ## Output
 
-Output conforms to the DO findings-report contract.
+Output conforms to the DO findings-report contract. Every finding this skill emits MUST set `findings[].domain` to `"Query"`.
diff --git a/microsoft/skills/review/al-security-review.md b/microsoft/skills/review/al-security-review.md
index 6d1ec69..12956bd 100644
--- a/microsoft/skills/review/al-security-review.md
+++ b/microsoft/skills/review/al-security-review.md
@@ -84,7 +84,7 @@ Outcome selection:
 
 ## Output
 
-Output conforms to the DO output contract. A populated example:
+Output conforms to the DO output contract. Every finding this skill emits MUST set `findings[].domain` to `"Security"`. A populated example:
 
 ```json
 {
@@ -107,7 +107,8 @@ Output conforms to the DO output contract. A populated example:
       "references": [
         { "path": "microsoft/knowledge/security/secrettext-for-credentials.md" }
       ],
-      "confidence": "high"
+      "confidence": "high",
+      "domain": "Security"
     },
     {
       "id": "microsoft/knowledge/security/secrets-isolated-storage.md",
@@ -120,7 +121,8 @@ Output conforms to the DO output contract. A populated example:
       "references": [
         { "path": "microsoft/knowledge/security/secrets-isolated-storage.md" }
       ],
-      "confidence": "medium"
+      "confidence": "medium",
+      "domain": "Security"
     }
   ],
   "suppressed": []
diff --git a/microsoft/skills/review/al-style-review.md b/microsoft/skills/review/al-style-review.md
index 29ec872..c570a08 100644
--- a/microsoft/skills/review/al-style-review.md
+++ b/microsoft/skills/review/al-style-review.md
@@ -84,7 +84,7 @@ Outcome selection:
 
 ## Output
 
-Output conforms to the DO output contract. A populated example:
+Output conforms to the DO output contract. Every finding this skill emits MUST set `findings[].domain` to `"Style"`. A populated example:
 
 ```json
 {
@@ -106,7 +106,8 @@ Output conforms to the DO output contract. A populated example:
       "references": [
         { "path": "microsoft/knowledge/style/label-suffix-approved-list.md" }
       ],
-      "confidence": "high"
+      "confidence": "high",
+      "domain": "Style"
     }
   ],
   "suppressed": []
diff --git a/microsoft/skills/review/al-telemetry-review.md b/microsoft/skills/review/al-telemetry-review.md
index 531d22d..4a758f0 100644
--- a/microsoft/skills/review/al-telemetry-review.md
+++ b/microsoft/skills/review/al-telemetry-review.md
@@ -88,7 +88,7 @@ Outcome selection:
 
 ## Output
 
-Output conforms to the DO output contract. The empty-corpus case produces:
+Output conforms to the DO output contract. Every finding this skill emits MUST set `findings[].domain` to `"Telemetry"`. The empty-corpus case produces:
 
 ```json
 {
diff --git a/microsoft/skills/review/al-testing-review.md b/microsoft/skills/review/al-testing-review.md
index 08641b2..2483f12 100644
--- a/microsoft/skills/review/al-testing-review.md
+++ b/microsoft/skills/review/al-testing-review.md
@@ -86,7 +86,7 @@ Outcome selection:
 
 ## Output
 
-Output conforms to the DO output contract. A populated example:
+Output conforms to the DO output contract. Every finding this skill emits MUST set `findings[].domain` to `"Testing"`. A populated example:
 
 ```json
 {
@@ -109,6 +109,7 @@ Output conforms to the DO output contract. A populated example:
         { "path": "microsoft/knowledge/testing/asserterror-needs-expectederror-and-code.md" }
       ],
       "confidence": "high",
+      "domain": "Testing",
       "suggested-code": "asserterror PostInvalidOrder();\nAssert.ExpectedError(ExpectedPostingErr);"
     }
   ],
diff --git a/microsoft/skills/review/al-ui-review.md b/microsoft/skills/review/al-ui-review.md
index ef22fa3..19f03c9 100644
--- a/microsoft/skills/review/al-ui-review.md
+++ b/microsoft/skills/review/al-ui-review.md
@@ -77,7 +77,7 @@ Outcome selection:
 
 ## Output
 
-Output conforms to the DO output contract. A populated example:
+Output conforms to the DO output contract. Every finding this skill emits MUST set `findings[].domain` to `"Accessibility"`. A populated example:
 
 ```json
 {
@@ -99,7 +99,8 @@ Output conforms to the DO output contract. A populated example:
       "references": [
         { "path": "microsoft/knowledge/ui/show-caption-on-editable-fields.md" }
       ],
-      "confidence": "high"
+      "confidence": "high",
+      "domain": "Accessibility"
     }
   ],
   "suppressed": []
diff --git a/microsoft/skills/review/al-upgrade-review.md b/microsoft/skills/review/al-upgrade-review.md
index 135b5ec..879e788 100644
--- a/microsoft/skills/review/al-upgrade-review.md
+++ b/microsoft/skills/review/al-upgrade-review.md
@@ -80,7 +80,7 @@ Outcome selection:
 
 ## Output
 
-Output conforms to the DO output contract. A populated example:
+Output conforms to the DO output contract. Every finding this skill emits MUST set `findings[].domain` to `"Upgrade"`. A populated example:
 
 ```json
 {
@@ -102,7 +102,8 @@ Output conforms to the DO output contract. A populated example:
       "references": [
         { "path": "microsoft/knowledge/upgrade/enum-values-additive-at-end.md" }
       ],
-      "confidence": "high"
+      "confidence": "high",
+      "domain": "Upgrade"
     }
   ],
   "suppressed": []
diff --git a/microsoft/skills/review/al-web-services-review.md b/microsoft/skills/review/al-web-services-review.md
index 204e709..cfa6fdd 100644
--- a/microsoft/skills/review/al-web-services-review.md
+++ b/microsoft/skills/review/al-web-services-review.md
@@ -80,7 +80,7 @@ Outcome selection:
 
 ## Output
 
-Output conforms to the DO output contract. A populated example:
+Output conforms to the DO output contract. Every finding this skill emits MUST set `findings[].domain` to `"Web Services"`. A populated example:
 
 ```json
 {
@@ -103,7 +103,8 @@ Output conforms to the DO output contract. A populated example:
       "references": [
         { "path": "microsoft/knowledge/web-services/set-required-api-page-properties.md" }
       ],
-      "confidence": "high"
+      "confidence": "high",
+      "domain": "Web Services"
     },
     {
       "id": "microsoft/knowledge/web-services/expose-systemid-as-the-api-key.md",
@@ -116,7 +117,8 @@ Output conforms to the DO output contract. A populated example:
       "references": [
         { "path": "microsoft/knowledge/web-services/expose-systemid-as-the-api-key.md" }
       ],
-      "confidence": "high"
+      "confidence": "high",
+      "domain": "Web Services"
     }
   ],
   "suppressed": []
diff --git a/skills/bcquality-al-review/SKILL.md b/skills/bcquality-al-review/SKILL.md
index beab1ae..20b2417 100644
--- a/skills/bcquality-al-review/SKILL.md
+++ b/skills/bcquality-al-review/SKILL.md
@@ -69,12 +69,13 @@ plugin-root environment variable, prefer it.
    be copied verbatim. This is the preferred execution profile for fast/small models;
    do not force one generation to retain all domain knowledge at once.
 
-4. **Emit findings.** Produce the rolled-up findings report in the DO output contract
-   (`outcome`, `findings`, `references`, `confidence`, `suppressed`). Do not invent a
-   different shape; downstream consumers parse the DO contract without skill-specific
-   logic. Apply DO's reference-integrity gate before returning: every knowledge-backed
-   path must exist in the installed tree, must have been opened in full, and must be
-   copied verbatim. Never synthesize a plausible article slug.
+4. **Emit findings.** Produce the rolled-up findings report in the DO output contract,
+   including each review finding's producer-supplied `domain` label (`outcome`,
+   `findings`, `references`, `confidence`, `suppressed`). Do not invent a different
+   shape; downstream consumers parse the DO contract without skill-specific logic.
+   Apply DO's reference-integrity gate before returning: every knowledge-backed path
+   must exist in the installed tree, must have been opened in full, and must be copied
+   verbatim. Never synthesize a plausible article slug.
 
 If Entry returns `no-match` or `failed`, return the dispatch record unchanged so the
 caller can log the reason.
diff --git a/skills/do.md b/skills/do.md
index 34bee79..9de11a4 100644
--- a/skills/do.md
+++ b/skills/do.md
@@ -95,6 +95,7 @@ Every action skill emits a single JSON document that conforms to this schema:
       ],
       "confidence": "high | medium | low",
       "from-sub-skill": "string",
+      "domain": "string",
       "suggested-code": "string",
       "suggested-code-omission-reason": "string"
     }
@@ -200,6 +201,10 @@ This gate applies independently to every leaf result and again to a super-skill'
 
 **`findings[].from-sub-skill`** — optional. Set only by super-skills. The `skill.id` of the sub-skill that produced the finding, or the literal string `"agent"` for an agent finding the super-skill produced from its own cross-cutting reasoning. Absent on findings emitted directly by a leaf skill — including agent findings the leaf emits within its own domain, which appear in the leaf's own report without this field.
 
+**`findings[].domain`** — optional in the shared schema for backward compatibility and for non-review findings. It is a short, human-readable display label for the review domain that produced the finding (for example, `Security`, `Breaking Changes`, `API & Web Services`). A review leaf skill MUST set it on every finding it emits. The value MUST be a non-empty, single-line string with no leading or trailing whitespace or control characters. Internal whitespace, punctuation, case, and non-ASCII characters are valid and significant.
+
+A review super-skill MUST preserve `domain` verbatim when rolling a leaf finding into its top-level `findings[]`, including preserving its absence from older producers, and MUST set it to `"Agent"` for agent findings it emits about cross-cutting concerns. Consumers MUST tolerate its absence. When rendering a present value, consumers MUST preserve the complete display text, escaping only as required by the output format; they MUST NOT split it on whitespace or restrict it to identifier characters. `domain` is display text, not a stable machine identifier. If a consumer embeds it in metadata or uses it in a deduplication key, it MUST retain the exact string, use a lossless encoding, or use a collision-resistant digest; it MUST NOT rely on lowercasing or lossy slugification as the sole identity.
+
 **`findings[].suggested-code`** — optional in the schema but **expected for mechanical findings**. It is a concrete code-replacement payload for the lines indicated by `location`. When present, the string MUST be a literal replacement for the source lines covered by `location.line` (or `location.range` if set) — i.e., what the file would contain after the fix, with no surrounding diff markers, fences, or commentary. Consumers MAY render it as a one-click suggestion in the delivery surface (for example, a GitHub ```` ```suggestion ```` block).
 
 Emit `suggested-code` whenever the fix is small, local, and mechanical: deleting unreachable code; replacing one expression (`Count() > 0` → `not IsEmpty()`); moving a local `Label` to object scope; adding a missing property such as `ToolTip`, `OptionCaption`, or `DataClassification`; replacing a string-concatenated `Error` with a Label-backed call; changing a permission token; or adding a missing `else`/guard branch whose replacement is unambiguous from the surrounding diff. When a `.good.al` companion exists and the diff context matches the `.bad.al` shape, prefer adapting the `.good.al` replacement into `suggested-code`.
@@ -237,7 +242,7 @@ The five required sections still apply. Their meaning shifts from knowledge file
 - `## Source` — names the sub-skills invoked (mirrors `sub-skills` in frontmatter).
 - `## Relevance` — rules for deciding which sub-skills apply to the current task. A sub-skill is relevant when its declared `inputs` are satisfied by the orchestrator's provided inputs and the orchestrator has not disabled it via configuration. The super-skill MUST NOT filter sub-skills by task content (for example, by inspecting the diff or the file). Task-level applicability is the sub-skill's own responsibility; sub-skills signal non-applicability by returning `outcome: "not-applicable"` or `outcome: "no-knowledge"`.
 - `## Worklist` — the final list of sub-skills to invoke; the rest go to `skipped-sub-skills`.
-- `## Action` — invoke each worklisted sub-skill with the appropriate subset of inputs, collect its findings-report verbatim into `sub-results`, and copy its `findings[]` into the super-skill's top-level `findings[]` with `from-sub-skill` set. Findings from a sub-skill with `outcome: "failed"` MUST NOT be copied into the super-skill's top-level `findings[]` and MUST NOT contribute to the super-skill's `summary.counts` (their report is still preserved in `sub-results` for traceability, consistent with DO's rule that consumers ignore a failed skill's findings).
+- `## Action` — invoke each worklisted sub-skill with the appropriate subset of inputs, collect its findings-report verbatim into `sub-results`, and copy its `findings[]` into the super-skill's top-level `findings[]` with `from-sub-skill` set. All finding fields, including the optional `domain`, are preserved verbatim unless this contract explicitly requires a transformation. Findings from a sub-skill with `outcome: "failed"` MUST NOT be copied into the super-skill's top-level `findings[]` and MUST NOT contribute to the super-skill's `summary.counts` (their report is still preserved in `sub-results` for traceability, consistent with DO's rule that consumers ignore a failed skill's findings).
 - `## Output` — the super-skill's output contract, including `sub-results` and, if any, `skipped-sub-skills`.
 
 ### Outcome rollup