feat(athena): redesign Step 1 routing with two-phase classification and cross-check option

Replace the 3-route system (self-answerable/ambiguous/council-clear) with
6-category first-interaction routing (meta, wrong-agent, council-worthy,
simple/factual, tool/action, ambiguous) plus 2 pre-checks for explicit
opt-out and council requests. Add subsequent-interaction rules for direct
answers, auto-routing, and greetings. Add 'Cross-check with council'
action to all 8 guidance files for post-synthesis re-evaluation.

src/agents/athena/guidance/audit.ts

@@ -140,6 +140,7 @@ Question({
     options: [
       { label: "Fix now (Atlas)", description: "Hand off to Atlas for direct implementation" },
       { label: "Create plan (Prometheus)", description: "Hand off to Prometheus for planning and phased execution" },
+      { label: "Cross-check with council", description: "Launch a new council session with this synthesis as context" },
       { label: "No action", description: "Review only - no delegation" }
     ],
     multiple: false
@@ -149,5 +150,6 @@ Question({
 6) Execute selected action:
 - Fix now (Atlas) -> switch_agent(agent="atlas") with ONLY selected findings
 - Create plan (Prometheus) -> switch_agent(agent="prometheus") with ONLY selected findings
+- Cross-check with council -> launch a new council session with the current synthesis as context. Restart from Step 2 (council setup) with the synthesis included in the prompt.
 - No action -> acknowledge and end
 </runtime_action_paths>`

src/agents/athena/guidance/create.ts

@@ -45,7 +45,7 @@ Question({
       { label: "Implement selected creation (Sisyphus ultrawork)", description: "Implementation with Sisyphus using ultrawork mode" },
       { label: "Write selected creation to document", description: "Save to .sisyphus/athena/notes/ (named after this council session)" },
       { label: "Ask follow-up", description: "Ask another creation-focused question" },
-      { label: "Done", description: "No further action needed" }
+      { label: "Cross-check with council", description: "Launch a new council session with this synthesis as context" },
     ],
     multiple: false
   }]
@@ -57,5 +57,5 @@ Question({
 - Implement selected creation (Sisyphus ultrawork) -> switch_agent(agent="sisyphus") and prefix handoff context with "ultrawork ", including only selected creation(s).
 - Write selected creation 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.
 - Ask follow-up -> ask user then restart the council workflow from Step 3 (intent classification).
-- Done -> acknowledge and end.
+- Cross-check with council -> launch a new council session with the current synthesis as context. Restart from Step 2 (council setup) with the synthesis included in the prompt.
 </runtime_action_paths>`

src/agents/athena/guidance/diagnose.ts

@@ -33,6 +33,7 @@ Question({
       { label: "Implement (Hephaestus)", description: "Hand off to Hephaestus for direct implementation" },
       { label: "Implement (Sisyphus)", description: "Hand off to Sisyphus for implementation" },
       { label: "Implement (Sisyphus ultrawork)", description: "Hand off to Sisyphus with ultrawork mode" },
+      { label: "Cross-check with council", description: "Launch a new council session with this synthesis as context" },
       { label: "No action", description: "Review only - no delegation" }
     ],
     multiple: false
@@ -43,5 +44,6 @@ Question({
 - Implement (Hephaestus) -> switch_agent(agent="hephaestus")
 - Implement (Sisyphus) -> switch_agent(agent="sisyphus")
 - Implement (Sisyphus ultrawork) -> switch_agent(agent="sisyphus") and prefix the handoff context with "ultrawork "
+- Cross-check with council -> launch a new council session with the current synthesis as context. Restart from Step 2 (council setup) with the synthesis included in the prompt.
 - No action -> acknowledge and end
 </runtime_action_paths>`

src/agents/athena/guidance/evaluate.ts

@@ -19,7 +19,7 @@ Question({
       { label: "Adopt option -> implement now", description: "Implement a selected option immediately" },
       { label: "Write to document", description: "Save to .sisyphus/athena/notes/ (named after this council session)" },
       { label: "Ask follow-up", description: "Ask another comparison question" },
-      { label: "Done", description: "No further action needed" }
+      { label: "Cross-check with council", description: "Launch a new council session with this synthesis as context" },
     ],
     multiple: false
   }]
@@ -58,5 +58,5 @@ Question({
 - Adopt option -> implement now + Sisyphus ultrawork -> switch_agent(agent="sisyphus") and prefix handoff context with "ultrawork ".
 - 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.
 - Ask follow-up -> ask user then restart the council workflow from Step 3 (intent classification).
-- Done -> acknowledge and end.
+- Cross-check with council -> launch a new council session with the current synthesis as context. Restart from Step 2 (council setup) with the synthesis included in the prompt.
 </runtime_action_paths>`

src/agents/athena/guidance/explain.ts

@@ -19,7 +19,7 @@ Question({
       { label: "Convert to action plan (Prometheus)", description: "Turn insights into a phased plan" },
       { label: "Write to document", description: "Save to .sisyphus/athena/notes/ (named after this council session)" },
       { label: "Ask follow-up", description: "Ask another explanatory question" },
-      { label: "Done", description: "No further action needed" }
+      { label: "Cross-check with council", description: "Launch a new council session with this synthesis as context" },
     ],
     multiple: false
   }]
@@ -29,5 +29,5 @@ Question({
 - Convert to action plan (Prometheus) -> switch_agent(agent="prometheus") with synthesized explanation and target outcome.
 - 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.
 - Ask follow-up -> ask user then restart the council workflow from Step 3 (intent classification).
-- Done -> acknowledge and end.
+- Cross-check with council -> launch a new council session with the current synthesis as context. Restart from Step 2 (council setup) with the synthesis included in the prompt.
 </runtime_action_paths>`

src/agents/athena/guidance/freeform.ts

@@ -19,7 +19,7 @@ Question({
       { label: "Implement now", description: "Implement directly from this result" },
       { label: "Write to document", description: "Save to .sisyphus/athena/notes/ (named after this council session)" },
       { label: "Ask follow-up", description: "Ask another question" },
-      { label: "Done", description: "No further action needed" }
+      { label: "Cross-check with council", description: "Launch a new council session with this synthesis as context" },
     ],
     multiple: false
   }]
@@ -46,5 +46,5 @@ Question({
 - Implement now + Sisyphus ultrawork -> switch_agent(agent="sisyphus") and prefix handoff context with "ultrawork ".
 - 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.
 - Ask follow-up -> ask user then restart the council workflow from Step 3 (intent classification).
-- Done -> acknowledge and end.
+- Cross-check with council -> launch a new council session with the current synthesis as context. Restart from Step 2 (council setup) with the synthesis included in the prompt.
 </runtime_action_paths>`

src/agents/athena/guidance/perspectives.ts

@@ -21,7 +21,7 @@ Question({
       { label: "Commit to stance -> implement now", description: "Implement based on a chosen stance immediately" },
       { label: "Write to document", description: "Save to .sisyphus/athena/notes/ (named after this council session)" },
       { label: "Ask follow-up", description: "Ask another perspective question" },
-      { label: "Done", description: "No further action needed" }
+      { label: "Cross-check with council", description: "Launch a new council session with this synthesis as context" },
     ],
     multiple: false
   }]
@@ -60,5 +60,5 @@ Question({
 - Commit to stance -> implement now + Sisyphus ultrawork -> switch_agent(agent="sisyphus") and prefix handoff context with "ultrawork ".
 - 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.
 - Ask follow-up -> ask user then restart the council workflow from Step 3 (intent classification).
-- Done -> acknowledge and end.
+- Cross-check with council -> launch a new council session with the current synthesis as context. Restart from Step 2 (council setup) with the synthesis included in the prompt.
 </runtime_action_paths>`

src/agents/athena/guidance/plan.ts

@@ -20,6 +20,7 @@ Question({
       { label: "Plan selected phase (Prometheus)", description: "Choose one phase for Prometheus to plan. Run /start-work to execute." },
       { label: "Write to document", description: "Save to .sisyphus/athena/notes/ (named after this council session)" },
       { label: "Ask follow-up", description: "Ask another planning question" },
+      { label: "Cross-check with council", description: "Launch a new council session with this synthesis as context" },
       { label: "Done", description: "No further action needed" }
     ],
     multiple: false
@@ -44,5 +45,6 @@ Question({
 - Plan selected phase (Prometheus) -> switch_agent(agent="prometheus") with only the selected phase plus dependencies, framed as work to be planned.
 - 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 to the user.
 - Ask follow-up -> ask user then restart the council workflow from Step 3 (intent classification).
+- Cross-check with council -> launch a new council session with the current synthesis as context. Restart from Step 2 (council setup) with the synthesis included in the prompt.
 - Done -> acknowledge and end.
 </runtime_action_paths>`