fix: clarify terminal investigation states

components/reasoning-workspace.jsx

@@ -25,11 +25,35 @@ function isTechnicalSummary(summary) {
   return false;
 }
 
+// ── Current understanding card ────────────────────────────────
+
+// Evidence-limit text that must not appear inside Current understanding
+// when the terminal outcome already communicates that state.
+const EVIDENCE_LIMIT_PHRASES = [
+  "The available evidence has reached its current limit",
+  "evidence has reached its current limit",
+  "evidence limit reached",
+  "has reached its current limit",
+];
+
 function resolveCurrentSummary(currentSummary) {
-  if (isTechnicalSummary(currentSummary)) {
+  if (!currentSummary || typeof currentSummary !== "string") return null;
-    return null;
+  const trimmed = currentSummary.trim();
+  if (!trimmed) return null;
+
+  // Filter out technical graph summaries
+  for (const p of TECHNICAL_PATTERNS) {
+    if (p.test(trimmed)) return null;
   }
-  return currentSummary || null;
+
+  // Don't show evidence-limit text in Current understanding when
+  // the terminal outcome card already communicates that state.
+  const lower = trimmed.toLowerCase();
+  for (const phrase of EVIDENCE_LIMIT_PHRASES) {
+    if (lower.includes(phrase)) return null;
+  }
+
+  return trimmed;
 }
 
 // ── Status message pools for loading feedback ────────────────
@@ -139,24 +163,17 @@ function CompletionCard() {
   return (
     <div className="rounded-lg border border-green-300 bg-green-50 px-5 py-6 text-center">
       <h2 className="mb-1 text-sm font-bold uppercase tracking-wide text-green-700">Investigation complete</h2>
-      <p className="text-base text-gray-800">You have provided enough information. The situation has been fully investigated.</p>
+      <p className="text-base text-gray-800">The current investigation has reached a justified conclusion.</p>
     </div>
   );
 }
 
-// ── Evidence exhaustion card (terminal state) ─────────────────
+// ── Evidence-limit card (terminal state: no next question) ───────
-function EvidenceExhaustedCard({ noQuestionReason }) {
+function EvidenceLimitCard() {
-  let message = "There is not yet enough evidence to guide the next step.";
-  if (noQuestionReason) {
-    const reason = String(noQuestionReason);
-    if (reason.toLowerCase().includes("insufficient")) {
-      message = reason;
-    }
-  }
   return (
     <div className="rounded-lg border border-gray-200 bg-gray-50 px-5 py-6 text-center">
-      <h2 className="mb-1 text-sm font-bold uppercase tracking-wide text-gray-500">Further investigation needed</h2>
+      <h2 className="mb-1 text-sm font-bold uppercase tracking-wide text-gray-500">Current evidence limit reached</h2>
-      <p className="text-base text-gray-700">{message}</p>
+      <p className="text-base text-gray-700">Further progress requires additional evidence.</p>
     </div>
   );
 }
@@ -432,8 +449,6 @@ export default function ReasoningWorkspace({
   const graph = result?.situationGraph ?? null;
   const diagnostics = result?.diagnostics ?? null;
   const newlySurfacedNodeIds = result?.newlySurfacedNodeIds || [];
-  const noQuestionReason = diagnostics?.noQuestionReason ?? null;
-
   const genuineCompletion = hasGenuineCompletion(graph);
 
   return (
@@ -457,68 +472,66 @@ export default function ReasoningWorkspace({
       {/* ── No graph produced after initial analysis ───────── */}
       {(status === "success" || status === "error") && !graph ? (
         <div className="rounded-lg border border-yellow-300 bg-yellow-50 px-4 py-3 text-sm text-yellow-800">
-          {noQuestionReason
+          {diagnostics?.noQuestionReason
             ? "Validation failed — no structured graph output was produced."
             : "The analysis completed but did not produce a structured result."}
         </div>
       ) : (
         <>
-          {/* ── 1. Current investigation (or terminal state) ─ */}
+          {/* ── 1. Terminal state: outcome card (no active question) ─ */}
-          {canAnswer && <CurrentInvestigationCard selectedQuestion={selectedQ} graph={graph} />}
+          {status === "success" && !canAnswer && graph && !isUpdating && genuineCompletion && <CompletionCard />}
+          {status === "success" && !canAnswer && graph && !isUpdating && !genuineCompletion && <EvidenceLimitCard />}
 
-          {/* Terminal states occupy the hero position when no question */}
+          {/* ── 2. Current understanding (when meaningful) ─ */}
-          {status === "success" && !canAnswer && graph && genuineCompletion && (
+          {(graph?.currentSummary || (status === "success" && !canAnswer)) && <CurrentUnderstandingCard currentSummary={graph.currentSummary} />}
-            <CompletionCard />
-          )}
-          {status === "success" && !canAnswer && graph && !genuineCompletion && updateStatus !== "success" && (
-            <EvidenceExhaustedCard noQuestionReason={noQuestionReason} />
-          )}
 
-          {/* ── 2. Post-update acknowledgement ─────────────── */}
+          {/* ── 3. Original situation (always-visible reference) ─ */}
-          {updateStatus === "success" && canAnswer && <UpdateAcknowledgement updateResult={result} />}
-
-          {/* ── 3. Response form ───────────────────────────── */}
-          {canAnswer && (
-            <form onSubmit={handleUpdateCaptureAndSubmit} className="space-y-4 rounded-lg border border-gray-200 bg-white p-5">
-              <div>
-                <label htmlFor="rw-answer" className="mb-2 block text-sm font-medium text-gray-700">
-                  Your response
-                </label>
-                <textarea
-                  id="rw-answer"
-                  value={answer}
-                  onChange={(e) => setAnswer(e.target.value)}
-                  rows={4}
-                  disabled={updateStatus === "loading"}
-                  className="w-full rounded-lg border border-gray-300 px-4 py-3 text-sm focus:border-gray-500 focus:outline-none focus:ring-2 focus:ring-gray-400 disabled:cursor-not-allowed disabled:opacity-60"
-                  placeholder="Enter the answer to the selected question..."
-                />
-              </div>
-              <div className="flex items-center justify-between">
-                <p className="text-xs text-gray-400">
-                  {updateStatus === "loading" ? "Updating..." : "One update turn only in this prototype."}
-                </p>
-                <button
-                  type="submit"
-                  disabled={updateStatus === "loading" || !answer.trim()}
-                  className="rounded-lg bg-blue-700 px-5 py-2 text-sm font-medium text-white transition hover:bg-blue-600 disabled:cursor-not-allowed disabled:opacity-40"
-                >
-                  {updateStatus === "loading" ? "Updating..." : "Update situation"}
-                </button>
-              </div>
-            </form>
-          )}
-
-          {/* ── 4. Current understanding ───────────────────── */}
-          {canAnswer && graph && <CurrentUnderstandingCard currentSummary={graph.currentSummary} />}
-
-          {/* ── 5. Original situation (always-visible reference) ─ */}
           <OriginalSituation scenario={scenario} centralStatement={graph?.centralStatement} />
 
-          {/* ── 6. Investigation history ───────────────────── */}
+          {/* ── 4. Investigation history ───────────────────── */}
-          <InvestigationHistory turns={investigationHistory} />
+          {investigationHistory.length > 0 && <InvestigationHistory turns={investigationHistory} />}
 
-          {/* ── 7. Developer details (collapsed by default) ── */}
+          {/* ── Active investigation: question + form + acknowledgement ─ */}
+          {canAnswer && (
+            <>
+              <CurrentInvestigationCard selectedQuestion={selectedQ} graph={graph} />
+
+              {/* Post-update acknowledgement */}
+              {updateStatus === "success" && <UpdateAcknowledgement updateResult={result} />}
+
+              {/* Response form */}
+              <form onSubmit={handleUpdateCaptureAndSubmit} className="space-y-4 rounded-lg border border-gray-200 bg-white p-5">
+                <div>
+                  <label htmlFor="rw-answer" className="mb-2 block text-sm font-medium text-gray-700">
+                    Your response
+                  </label>
+                  <textarea
+                    id="rw-answer"
+                    value={answer}
+                    onChange={(e) => setAnswer(e.target.value)}
+                    rows={4}
+                    disabled={updateStatus === "loading"}
+                    className="w-full rounded-lg border border-gray-300 px-4 py-3 text-sm focus:border-gray-500 focus:outline-none focus:ring-2 focus:ring-gray-400 disabled:cursor-not-allowed disabled:opacity-60"
+                    placeholder="Enter the answer to the selected question..."
+                  />
+                </div>
+                <div className="flex items-center justify-between">
+                  <p className="text-xs text-gray-400">
+                    {updateStatus === "loading" ? "Updating..." : "One update turn only in this prototype."}
+                  </p>
+                  <button
+                    type="submit"
+                    disabled={updateStatus === "loading" || !answer.trim()}
+                    className="rounded-lg bg-blue-700 px-5 py-2 text-sm font-medium text-white transition hover:bg-blue-600 disabled:cursor-not-allowed disabled:opacity-40"
+                  >
+                    {updateStatus === "loading" ? "Updating..." : "Update situation"}
+                  </button>
+                </div>
+              </form>
+            </>
+          )}
+
+          {/* ── 5. Developer details (collapsed by default) ── */}
           {(status === "success" || status === "error") && graph && (
             <DeveloperDetails
               graph={graph}
@@ -528,10 +541,6 @@ export default function ReasoningWorkspace({
               updateResult={updateStatus === "success" ? result : null}
             />
           )}
-
-          {/* ── Terminal state with understanding (when no active question) ─ */}
-          {status === "success" && !canAnswer && graph && genuineCompletion && <CurrentUnderstandingCard currentSummary={graph.currentSummary} />}
-          {status === "success" && !canAnswer && graph && !genuineCompletion && updateStatus !== "success" && <CurrentUnderstandingCard currentSummary={graph.currentSummary} />}
         </>
       )}
 

components/scenario-form.jsx

@@ -3,8 +3,6 @@
 import React, { useEffect } from "react";
 import { useState, useRef, useMemo } from "react";
 import DiagnosticsView from "@/components/diagnostics-view";
-import GraphUpdateView from "@/components/graph-update-view";
-import SituationGraphView from "@/components/situation-graph-view";
 import ReasoningWorkspace, { LoadingOverlay } from "@/components/reasoning-workspace";
 import { mockFetch } from "@/lib/mocks/confidence-engine/mock-client";
 
@@ -103,14 +101,6 @@ export function ScenarioResultPanels({ status, result }) {
         </div>
       )}
 
-      {(status === "success" || hasGraph || hasQuestion) && (
-        <SituationGraphView
-          situationGraph={result.situationGraph}
-          selectedQuestion={result.selectedQuestion}
-          newlySurfacedNodeIds={result.newlySurfacedNodeIds}
-        />
-      )}
-
       {hasDiagnostics && <DiagnosticsView result={result} />}
     </>
   );