diff --git a/index.ts b/index.ts
index 361e749..2f8c114 100644
--- a/index.ts
+++ b/index.ts
@@ -133,6 +133,7 @@ interface PluginConfig {
     };
   };
   mdMirror?: { enabled?: boolean; dir?: string };
+  exposeRetrievalMetadata?: boolean;
 }
 
 type ReflectionThinkLevel = "off" | "minimal" | "low" | "medium" | "high";
@@ -1606,6 +1607,7 @@ const memoryLanceDBProPlugin = {
         agentId: undefined, // Will be determined at runtime from context
         workspaceDir: getDefaultWorkspaceDir(),
         mdMirror,
+        exposeRetrievalMetadata: config.exposeRetrievalMetadata,
       },
       {
         enableManagementTools: config.enableManagementTools,
@@ -1691,7 +1693,7 @@ const memoryLanceDBProPlugin = {
               return postProcessAutoRecallResults(retrieved).slice(0, topK);
             },
             formatLine: (row) =>
-              `- [${row.entry.category}:${row.entry.scope}] ${sanitizeForContext(row.entry.text)} (${(row.score * 100).toFixed(0)}%${row.sources?.bm25 ? ", vector+BM25" : ""}${row.sources?.reranked ? "+reranked" : ""})`,
+              `- [${row.entry.category}:${row.entry.scope}] ${sanitizeForContext(row.entry.text)}`,
           });
         } catch (err) {
           api.logger.warn(`memory-lancedb-pro: auto-recall failed: ${String(err)}`);
@@ -2882,6 +2884,7 @@ export function parsePluginConfig(value: unknown): PluginConfig {
                 : undefined,
           }
         : undefined,
+    exposeRetrievalMetadata: cfg.exposeRetrievalMetadata === true,
   };
 }
 
diff --git a/openclaw.plugin.json b/openclaw.plugin.json
index ef842dd..7c769dc 100644
--- a/openclaw.plugin.json
+++ b/openclaw.plugin.json
@@ -489,6 +489,11 @@
             "description": "Fallback directory for Markdown mirror files when agent workspace is unknown"
           }
         }
+      },
+      "exposeRetrievalMetadata": {
+        "type": "boolean",
+        "default": false,
+        "description": "Expose retrieval metadata (score, sources) in details.debug field. Useful for debugging retrieval quality. Default: false to keep output clean."
       }
     },
     "required": [
diff --git a/package.json b/package.json
index 57069d9..9909257 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
     ]
   },
   "scripts": {
-    "test": "node test/embedder-error-hints.test.mjs && node test/migrate-legacy-schema.test.mjs && node test/cli-smoke.mjs && node --test test/memory-reflection.test.mjs test/self-improvement.test.mjs"
+    "test": "node test/embedder-error-hints.test.mjs && node test/migrate-legacy-schema.test.mjs && node test/cli-smoke.mjs && node --test test/memory-recall-metadata.test.mjs test/memory-reflection.test.mjs test/self-improvement.test.mjs"
   },
   "devDependencies": {
     "commander": "^14.0.0",
diff --git a/src/tools.ts b/src/tools.ts
index 620845a..e6f9d88 100644
--- a/src/tools.ts
+++ b/src/tools.ts
@@ -43,6 +43,7 @@ interface ToolContext {
   agentId?: string;
   workspaceDir?: string;
   mdMirror?: MdMirrorWriter | null;
+  exposeRetrievalMetadata?: boolean;
 }
 
 function resolveAgentId(runtimeAgentId: unknown, fallback?: string): string | undefined {
@@ -65,17 +66,50 @@ function clamp01(value: number, fallback = 0.7): number {
   return Math.min(1, Math.max(0, value));
 }
 
-function sanitizeMemoryForSerialization(results: RetrievalResult[]) {
-  return results.map((r) => ({
-    id: r.entry.id,
-    text: r.entry.text,
-    category: getDisplayCategoryTag(r.entry),
-    rawCategory: r.entry.category,
-    scope: r.entry.scope,
-    importance: r.entry.importance,
-    score: r.score,
-    sources: r.sources,
-  }));
+type SerializedMemory = {
+  id: string;
+  text: string;
+  category: string;
+  rawCategory: string;
+  scope: string;
+  importance: number;
+};
+
+type DebugMemory = {
+  id: string;
+  score: number;
+  sources: RetrievalResult["sources"];
+};
+
+type SerializedMemoryPayload = {
+  memories: SerializedMemory[];
+  debug?: DebugMemory[];
+};
+
+function buildSanitizedMemoryPayload(
+  results: RetrievalResult[],
+  exposeRetrievalMetadata?: boolean,
+): SerializedMemoryPayload {
+  const payload: SerializedMemoryPayload = {
+    memories: results.map((r) => ({
+      id: r.entry.id,
+      text: r.entry.text,
+      category: getDisplayCategoryTag(r.entry),
+      rawCategory: r.entry.category,
+      scope: r.entry.scope,
+      importance: r.entry.importance,
+    })),
+  };
+
+  if (exposeRetrievalMetadata) {
+    payload.debug = results.map((r) => ({
+      id: r.entry.id,
+      score: r.score,
+      sources: r.sources,
+    }));
+  }
+
+  return payload;
 }
 
 function resolveWorkspaceDir(toolCtx: unknown, fallback?: string): string {
@@ -408,16 +442,16 @@ export function registerMemoryRecallTool(
 
           const text = results
             .map((r, i) => {
-              const sources = [];
-              if (r.sources.vector) sources.push("vector");
-              if (r.sources.bm25) sources.push("BM25");
-              if (r.sources.reranked) sources.push("reranked");
-
               const categoryTag = getDisplayCategoryTag(r.entry);
-              return `${i + 1}. [${r.entry.id}] [${categoryTag}] ${r.entry.text} (${(r.score * 100).toFixed(0)}%${sources.length > 0 ? `, ${sources.join("+")}` : ""})`;
+              return `${i + 1}. [${r.entry.id}] [${categoryTag}] ${r.entry.text}`;
             })
             .join("\n");
 
+          const serialized = buildSanitizedMemoryPayload(
+            results,
+            context.exposeRetrievalMetadata,
+          );
+
           return {
             content: [
               {
@@ -427,7 +461,8 @@ export function registerMemoryRecallTool(
             ],
             details: {
               count: results.length,
-              memories: sanitizeMemoryForSerialization(results),
+              memories: serialized.memories,
+              ...(serialized.debug ? { debug: serialized.debug } : {}),
               query,
               scopes: scopeFilter,
               retrievalMode: context.retriever.getConfig().mode,
@@ -718,6 +753,11 @@ export function registerMemoryForgetTool(
               )
               .join("\n");
 
+            const serialized = buildSanitizedMemoryPayload(
+              results,
+              context.exposeRetrievalMetadata,
+            );
+
             return {
               content: [
                 {
@@ -727,7 +767,8 @@ export function registerMemoryForgetTool(
               ],
               details: {
                 action: "candidates",
-                candidates: sanitizeMemoryForSerialization(results),
+                candidates: serialized.memories,
+                ...(serialized.debug ? { debug: serialized.debug } : {}),
               },
             };
           }
@@ -844,6 +885,11 @@ export function registerMemoryUpdateTool(
                     `- [${r.entry.id.slice(0, 8)}] ${r.entry.text.slice(0, 60)}${r.entry.text.length > 60 ? "..." : ""}`,
                 )
                 .join("\n");
+              const serialized = buildSanitizedMemoryPayload(
+                results,
+                context.exposeRetrievalMetadata,
+              );
+
               return {
                 content: [
                   {
@@ -853,7 +899,8 @@ export function registerMemoryUpdateTool(
                 ],
                 details: {
                   action: "candidates",
-                  candidates: sanitizeMemoryForSerialization(results),
+                  candidates: serialized.memories,
+                  ...(serialized.debug ? { debug: serialized.debug } : {}),
                 },
               };
             }
diff --git a/test/memory-recall-metadata.test.mjs b/test/memory-recall-metadata.test.mjs
new file mode 100644
index 0000000..b0004fd
--- /dev/null
+++ b/test/memory-recall-metadata.test.mjs
@@ -0,0 +1,158 @@
+import { describe, it } from "node:test";
+import assert from "node:assert/strict";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import jitiFactory from "jiti";
+
+const testDir = path.dirname(fileURLToPath(import.meta.url));
+const pluginSdkStubPath = path.resolve(testDir, "helpers", "openclaw-plugin-sdk-stub.mjs");
+const jiti = jitiFactory(import.meta.url, {
+  interopDefault: true,
+  alias: {
+    "openclaw/plugin-sdk": pluginSdkStubPath,
+  },
+});
+
+const {
+  registerMemoryRecallTool,
+  registerMemoryForgetTool,
+  registerMemoryUpdateTool,
+} = jiti("../src/tools.ts");
+
+function makeResults(count = 1) {
+  return Array.from({ length: count }, (_, index) => ({
+    entry: {
+      id: `m${index + 1}`,
+      text: `remember this ${index + 1}`,
+      category: "fact",
+      scope: "global",
+      importance: 0.7,
+    },
+    score: 0.82 - index * 0.01,
+    sources: {
+      vector: { score: 0.82 - index * 0.01, rank: index + 1 },
+      bm25: { score: 0.88 - index * 0.01, rank: index + 2 },
+    },
+  }));
+}
+
+function makeApiCapture() {
+  let capturedCreator = null;
+  const api = {
+    registerTool(cb) {
+      capturedCreator = cb;
+    },
+    logger: { info: () => {}, warn: () => {}, debug: () => {} },
+  };
+  return { api, getCreator: () => capturedCreator };
+}
+
+function makeContext({ expose = false, results = makeResults() } = {}) {
+  return {
+    retriever: {
+      async retrieve() {
+        return results;
+      },
+      getConfig() {
+        return { mode: "hybrid" };
+      },
+    },
+    store: {
+      async delete() {
+        return true;
+      },
+      async update() {
+        return true;
+      },
+    },
+    scopeManager: {
+      getAccessibleScopes: () => ["global"],
+      isAccessible: () => true,
+      getDefaultScope: () => "global",
+    },
+    embedder: { embedPassage: async () => [] },
+    agentId: "main",
+    workspaceDir: "/tmp",
+    mdMirror: null,
+    exposeRetrievalMetadata: expose,
+  };
+}
+
+function createTool(registerTool, context) {
+  const { api, getCreator } = makeApiCapture();
+  registerTool(api, context);
+  const creator = getCreator();
+  assert.ok(typeof creator === "function");
+  return creator({});
+}
+
+describe("memory metadata exposure", () => {
+  it("keeps memory_recall text clean when exposeRetrievalMetadata=false", async () => {
+    const tool = createTool(
+      registerMemoryRecallTool,
+      makeContext({ expose: false, results: makeResults(1) }),
+    );
+
+    const res = await tool.execute(null, { query: "test" });
+
+    assert.equal(res.details.count, 1);
+    assert.ok(Array.isArray(res.details.memories));
+    assert.equal(res.details.debug, undefined);
+    assert.equal(Object.prototype.hasOwnProperty.call(res.details.memories[0], "score"), false);
+    assert.equal(Object.prototype.hasOwnProperty.call(res.details.memories[0], "sources"), false);
+    assert.match(res.content[0].text, /remember this 1/);
+    assert.doesNotMatch(res.content[0].text, /82%|vector|BM25|reranked/);
+  });
+
+  it("exposes debug metadata without polluting memory_recall text when enabled", async () => {
+    const tool = createTool(
+      registerMemoryRecallTool,
+      makeContext({ expose: true, results: makeResults(2) }),
+    );
+
+    const res = await tool.execute(null, { query: "test" });
+
+    assert.equal(res.details.count, 2);
+    assert.ok(Array.isArray(res.details.memories));
+    assert.ok(Array.isArray(res.details.debug));
+    assert.equal(res.details.debug.length, res.details.memories.length);
+    assert.equal(typeof res.details.debug[0].score, "number");
+    assert.ok(res.details.debug[0].sources.vector);
+    assert.ok(res.details.debug[0].sources.bm25);
+    assert.equal(res.details.debug[0].id, res.details.memories[0].id);
+    assert.equal(res.details.debug[1].id, res.details.memories[1].id);
+    assert.doesNotMatch(res.content[0].text, /82%|vector|BM25|reranked/);
+  });
+
+  it("preserves details.candidates for memory_forget while attaching debug metadata separately", async () => {
+    const tool = createTool(
+      registerMemoryForgetTool,
+      makeContext({ expose: true, results: makeResults(2) }),
+    );
+
+    const res = await tool.execute(null, { query: "test" });
+
+    assert.equal(res.details.action, "candidates");
+    assert.ok(Array.isArray(res.details.candidates));
+    assert.equal(res.details.memories, undefined);
+    assert.ok(Array.isArray(res.details.debug));
+    assert.equal(Object.prototype.hasOwnProperty.call(res.details.candidates[0], "score"), false);
+    assert.equal(Object.prototype.hasOwnProperty.call(res.details.candidates[0], "sources"), false);
+  });
+
+  it("preserves details.candidates for memory_update while attaching debug metadata separately", async () => {
+    const tool = createTool(
+      registerMemoryUpdateTool,
+      makeContext({ expose: true, results: makeResults(2) }),
+    );
+
+    const res = await tool.execute(null, { memoryId: "test", text: "updated text" });
+
+    assert.equal(res.details.action, "candidates");
+    assert.ok(Array.isArray(res.details.candidates));
+    assert.equal(res.details.memories, undefined);
+    assert.ok(Array.isArray(res.details.debug));
+    assert.equal(Object.prototype.hasOwnProperty.call(res.details.candidates[0], "score"), false);
+    assert.equal(Object.prototype.hasOwnProperty.call(res.details.candidates[0], "sources"), false);
+  });
+});