diff --git a/packages/context/src/ingest/ingest-bundle.runner.test.ts b/packages/context/src/ingest/ingest-bundle.runner.test.ts
index 59e85058..588af792 100644
--- a/packages/context/src/ingest/ingest-bundle.runner.test.ts
+++ b/packages/context/src/ingest/ingest-bundle.runner.test.ts
@@ -260,7 +260,11 @@ const buildRunner = (deps: ReturnType<typeof makeDeps> = makeDeps(), overrides:
       resolveTranscriptDir: (jobId) => `/tmp/ktx-test/run/wu-transcripts/${jobId}`,
       resolveTracePath: (jobId) => `/tmp/ktx-test/ingest-traces/${jobId}/trace.jsonl`,
     },
-    settings: { probeRowCount: 1, memoryIngestionModel: 'test-model' },
+    settings: {
+      probeRowCount: 1,
+      memoryIngestionModel: 'test-model',
+      sharedWorktreeSourceKeys: ['fake', 'notion', 'looker', 'metricflow', 'historic-sql'],
+    },
     skillsRegistry: deps.skillsRegistry as any,
     promptService: deps.promptService as any,
     wikiService: deps.wikiService as any,
diff --git a/packages/context/src/ingest/ingest-bundle.runner.ts b/packages/context/src/ingest/ingest-bundle.runner.ts
index 4dab2605..fe07219d 100644
--- a/packages/context/src/ingest/ingest-bundle.runner.ts
+++ b/packages/context/src/ingest/ingest-bundle.runner.ts
@@ -1,4 +1,4 @@
-import { mkdir, readFile, rm, writeFile } from 'node:fs/promises';
+import { cp, mkdir, readFile, rm, writeFile } from 'node:fs/promises';
 import { dirname, join } from 'node:path';
 import pLimit from 'p-limit';
 import { z } from 'zod';
@@ -78,6 +78,16 @@ import { repairWikiSlRefs, type WikiSlRefRepairResult } from './wiki-sl-ref-repa
 
 type MemoryFlowStageProgress = Extract<MemoryFlowEvent, { type: 'stage_progress' }>;
 
+async function copyTransientIngestEvidence(sourceWorkdir: string, targetWorkdir: string): Promise<void> {
+  const source = join(sourceWorkdir, '.ktx/ingest-evidence');
+  const target = join(targetWorkdir, '.ktx/ingest-evidence');
+  await cp(source, target, { recursive: true, force: true }).catch((error: NodeJS.ErrnoException) => {
+    if (error.code !== 'ENOENT') {
+      throw error;
+    }
+  });
+}
+
 function workUnitToMemoryFlowPlannedWorkUnit(workUnit: WorkUnit): MemoryFlowPlannedWorkUnit {
   return {
     unitKey: workUnit.unitKey,
@@ -1419,6 +1429,7 @@ export class IngestBundleRunner {
                   patchDir,
                   trace: runTrace,
                   workUnit: wu,
+                  afterSuccess: (child) => copyTransientIngestEvidence(child.workdir, sessionWorktree.workdir),
                   run: async (child) => {
                     const scopedWikiService = this.deps.wikiService.forWorktree(child.workdir);
                     const scopedSemanticLayerService = this.deps.semanticLayerService.forWorktree(child.workdir);
diff --git a/packages/context/src/ingest/isolated-diff/work-unit-executor.ts b/packages/context/src/ingest/isolated-diff/work-unit-executor.ts
index 7d64431e..ac013d5a 100644
--- a/packages/context/src/ingest/isolated-diff/work-unit-executor.ts
+++ b/packages/context/src/ingest/isolated-diff/work-unit-executor.ts
@@ -15,6 +15,7 @@ export interface RunIsolatedWorkUnitInput {
   trace: IngestTraceWriter;
   workUnit: WorkUnit;
   run(child: IngestSessionWorktree): Promise<WorkUnitOutcome>;
+  afterSuccess?(child: IngestSessionWorktree): Promise<void>;
 }
 
 function patchFileName(unitIndex: number, unitKey: string): string {
@@ -44,6 +45,7 @@ export async function runIsolatedWorkUnit(input: RunIsolatedWorkUnitInput): Prom
       return { ...outcome, childWorktreePath: child.workdir };
     }
 
+    await input.afterSuccess?.(child);
     await mkdir(input.patchDir, { recursive: true });
     const patchPath = join(input.patchDir, patchFileName(input.unitIndex, input.workUnit.unitKey));
     await child.git.writeBinaryNoRenamePatch(input.ingestionBaseSha, 'HEAD', patchPath);