refactor(athena): extract shared guidance boilerplate into shared module

src/agents/athena/guidance/audit.ts

@@ -1,3 +1,5 @@
+import { FOLLOWUP_OR_DONE_QUESTION_BODY } from "./shared-action-paths"
+
 export const AUDIT_GUIDANCE = `
 <runtime_synthesis_rules>
 Use AUDIT synthesis.
@@ -126,14 +128,7 @@ Question({
 Question({
   questions: [{
     question: "No findings were selected for action. What should we do next?",
-    header: "Next Step",
-    options: [
-      { label: "Ask follow-up", description: "Ask a clarifying question and run another council pass" },
-      { label: "Done", description: "No further action needed" }
-    ],
-    multiple: false
-  }]
-})
+${FOLLOWUP_OR_DONE_QUESTION_BODY}
 
 5) If selected findings exist, ask what action to take on the selected findings:
 Question({

src/agents/athena/guidance/diagnose.ts

@@ -1,3 +1,5 @@
+import { FOLLOWUP_OR_DONE_QUESTION_BODY } from "./shared-action-paths"
+
 export const DIAGNOSE_GUIDANCE = `
 <runtime_synthesis_rules>
 Use DIAGNOSE synthesis.
@@ -15,14 +17,7 @@ Path type: ACTIONABLE.
 Question({
   questions: [{
     question: "No actionable findings were identified. What should we do next?",
-    header: "Next Step",
-    options: [
-      { label: "Ask follow-up", description: "Ask a clarifying question and run another council pass" },
-      { label: "Done", description: "No further action needed" }
-    ],
-    multiple: false
-  }]
-})
+${FOLLOWUP_OR_DONE_QUESTION_BODY}
 
 3) If an actionable fix candidate exists, ask action directly (no findings multi-select):
 Question({

src/agents/athena/guidance/shared-action-paths.ts

@@ -0,0 +1,44 @@
+export const EXECUTION_AGENT_OPTIONS = `\
+      { label: "Hephaestus", description: "Direct implementation with Hephaestus" },
+      { label: "Sisyphus", description: "Implementation with Sisyphus" },
+      { label: "Sisyphus ultrawork", description: "Implementation with Sisyphus using ultrawork mode" }`
+
+export const WRITE_DOCUMENT_OPTION =
+  '      { label: "Write to document", description: "Save to .sisyphus/athena/notes/ (named after this council session)" }'
+
+export const DONE_OPTION =
+  '      { label: "Done", description: "No further action needed" }'
+
+export const DONE_QUESTION_TAIL = `\
+${DONE_OPTION}
+    ],
+    multiple: false
+  }]
+})`
+
+export const WRITE_DOCUMENT_ACTION =
+  '- Write to document -> write the document to the ".sisyphus/athena/notes/" directory using the council session name from the council_finalize archive_dir, then report the exact path.'
+
+export const ASK_FOLLOWUP_ACTION =
+  "- Ask follow-up -> ask user then restart the council workflow from Step 3 (intent classification)."
+
+export const DONE_ACTION = "- Done -> acknowledge and end."
+
+export const COMMON_ACTION_TAIL = `${WRITE_DOCUMENT_ACTION}
+${ASK_FOLLOWUP_ACTION}
+${DONE_ACTION}`
+
+export const FOLLOWUP_OR_DONE_QUESTION_BODY = `\
+    header: "Next Step",
+    options: [
+      { label: "Ask follow-up", description: "Ask a clarifying question and run another council pass" },
+${DONE_QUESTION_TAIL}`
+
+export const EXECUTION_AGENT_QUESTION_BODY = `\
+    header: "Execution Agent",
+    options: [
+${EXECUTION_AGENT_OPTIONS}
+    ],
+    multiple: false
+  }]
+})`