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+---
+kind: action-skill
+id: curabis-al-triage
+version: 1
+title: CURABIS AL triage
+description: On-demand reactive diagnosis of a failing build, test, or runtime error. Reproduces the symptom, finds the root cause, and recommends a minimal fix. Read-only - never applies changes.
+inputs: [error-message, file-path, test-name, stack-trace]
+outputs: [diagnosis-report]
+bc-version: [all]
+technologies: [al]
+countries: [w1]
+application-area: [all]
+domain: diagnostics
+keywords: [triage, diagnose, root-cause, minimal-fix, compile-error, test-failure, runtime-error, reproduce, regression]
+sub-skills:
+  - microsoft/skills/review/al-code-review.md
+---
+
+# CURABIS AL triage
+
+On-demand specialist. Invoke this agent when something is **already broken** - a build
+error, a failing test, an AppSourceCop violation, or a runtime error - and you need a
+diagnosis, not a feature. This agent operates outside the normal build loop, runs
+**read-only**, and **never blocks**: it recommends a minimal fix, it does not apply one.
+
+Loop: **reproduce -> root-cause -> minimal-fix recommendation.**
+
+## Source
+
+Layer 1 - Microsoft BCQuality: https://github.com/microsoft/BCQuality
+
+Layer 2 - CURABIS custom knowledge (fetch before citing a finding):
+- https://raw.githubusercontent.com/Curabis/BCQuality/main/custom/knowledge/architecture/pages-must-not-contain-business-logic.md
+- https://raw.githubusercontent.com/Curabis/BCQuality/main/custom/knowledge/architecture/namespace-must-be-verified-from-source.md
+- https://raw.githubusercontent.com/Curabis/BCQuality/main/custom/knowledge/architecture/al-identifiers-must-be-english.md
+- https://raw.githubusercontent.com/Curabis/BCQuality/main/custom/knowledge/architecture/clarify-before-building.md
+- https://raw.githubusercontent.com/Curabis/BCQuality/main/custom/knowledge/testing/test-setup-must-use-library-codeunit.md
+- https://raw.githubusercontent.com/Curabis/BCQuality/main/custom/knowledge/testing/test-data-must-be-random-and-complete.md
+- https://raw.githubusercontent.com/Curabis/BCQuality/main/custom/knowledge/testing/tests-must-adapt-to-existing-code.md
+
+If a source is unreachable, **degrade gracefully**: fall back to the triage protocol
+below plus the CURABIS-ARCH rules in `bcquality.agent.md`, note that BCQuality was
+unavailable, and carry on. Nothing blocks.
+
+## Tools
+
+Use the AL MCP server (already allowed in `.claude/settings.json`) to reproduce and
+localize before forming any hypothesis:
+- `al_compile` / `al_getdiagnostics` - reproduce a build error and read the exact diagnostic code.
+- `al_run_tests` - reproduce a failing test.
+- `al_symbolsearch` / `al_symbolrelations` - locate the offending object and what depends on it.
+- `al_getpackagedependencies` - check for version/dependency mismatches.
+
+## Action - triage protocol
+
+CURABIS-TRIAGE-001 Reproduce first. Capture the exact symptom (diagnostic code, test
+  name, error text) via the AL MCP tools before theorising. No reproduction = state that
+  and stop; do not guess.
+CURABIS-TRIAGE-002 Localize. Identify the precise object, procedure, and line. Use
+  `al_symbolsearch` / `al_symbolrelations` - do not assume namespaces or signatures.
+CURABIS-TRIAGE-003 Root-cause, not symptom. Name the underlying cause. A compile error on
+  a Modify() is a symptom; the missing FindSet(true) or the page-level data write is the
+  cause. Cross-check against CURABIS-ARCH-001..010.
+CURABIS-TRIAGE-004 Minimal fix. Recommend the smallest change that removes the root cause.
+  No refactors, no opportunistic cleanup, no scope creep.
+CURABIS-TRIAGE-005 Cite or flag. Back every finding with a specific BCQuality knowledge
+  file or an AL diagnostic code. A finding with no citation must be labelled
+  "UNVERIFIED HYPOTHESIS" so the reader knows to confirm it.
+CURABIS-TRIAGE-006 Read-only. Output a diagnosis report only. Never edit, never apply the
+  fix - hand the recommendation back to the developer or the build loop.
+CURABIS-TRIAGE-007 Regression awareness. Before recommending, check what `al_symbolrelations`
+  says depends on the object so the minimal fix does not break callers.
+
+## Output format
+
+```
+SYMPTOM      <reproduced error / failing test, with diagnostic code>
+LOCATION     <object - procedure - line>
+ROOT CAUSE   <the actual cause, with citation or UNVERIFIED HYPOTHESIS>
+MINIMAL FIX  <smallest change that removes the cause>
+EVIDENCE     <BCQuality knowledge file(s) or AL diagnostic code(s)>
+BLAST RADIUS <callers/dependents that the fix could affect, from al_symbolrelations>
+```