diff --git a/CHANGELOG.md b/CHANGELOG.md
index c017b32938b..58e5a0055c2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -75,6 +75,7 @@ Docs: https://docs.openclaw.ai
 - Plugins/marketplace: block remote marketplace symlink escapes without breaking ordinary local marketplace install paths. (#60556) Thanks @eleqtrizit.
 - Plugins/install: preserve unsafe override flags across linked plugin and hook-pack probes so local `--link` installs honor the documented override behavior. (#60624) Thanks @JerrettDavis.
 - Config/All Settings: keep the raw config view intact when sensitive fields are blank instead of corrupting or dropping the rendered snapshot. (#28214) Thanks @solodmd.
+- Google/cache: pass explicit `cachedContent` handles through direct Google transport params and agent extra params so prebuilt Gemini context caches can be targeted again. Thanks @vincentkoc.
 - Security: preserve restrictive plugin-only tool allowlists, require owner access for `/allowlist add` and `/allowlist remove`, fail closed when `before_tool_call` hooks crash, block browser SSRF redirect bypasses earlier, and keep non-interactive auth-choice inference scoped to bundled and already-trusted plugins. (#58476, #59836, #59822, #58771, #59120)
 - Exec approvals: reuse durable exact-command `allow-always` approvals in allowlist mode so identical reruns stop prompting, and tighten Windows interpreter/path approval handling so wrapper and malformed-path cases fail closed more consistently. (#59880, #59780, #58040, #59182)
 - Agents/runtime: make default subagent allowlists, inherited skills/workspaces, and duplicate session-id resolution behave more predictably, and include value-shape hints in missing-parameter tool errors. (#59944, #59992, #59858, #55317)
diff --git a/src/agents/google-transport-stream.test.ts b/src/agents/google-transport-stream.test.ts
index 14cb9869004..e4db42278f5 100644
--- a/src/agents/google-transport-stream.test.ts
+++ b/src/agents/google-transport-stream.test.ts
@@ -112,6 +112,7 @@ describe("google transport stream", () => {
         } as unknown as Parameters<typeof streamFn>[1],
         {
           apiKey: "gemini-api-key",
+          cachedContent: "cachedContents/request-cache",
           reasoning: "medium",
           toolChoice: "auto",
         } as Parameters<typeof streamFn>[2],
@@ -142,6 +143,7 @@ describe("google transport stream", () => {
     expect(payload.systemInstruction).toEqual({
       parts: [{ text: "Follow policy." }],
     });
+    expect(payload.cachedContent).toBe("cachedContents/request-cache");
     expect(payload.generationConfig).toMatchObject({
       thinkingConfig: { includeThoughts: true, thinkingLevel: "HIGH" },
     });
@@ -246,4 +248,31 @@ describe("google transport stream", () => {
       thinkingConfig: { thinkingBudget: -1 },
     });
   });
+
+  it("includes cachedContent in direct Gemini payloads when requested", () => {
+    const model = {
+      id: "gemini-2.5-pro",
+      name: "Gemini 2.5 Pro",
+      api: "google-generative-ai",
+      provider: "google",
+      baseUrl: "https://generativelanguage.googleapis.com/v1beta",
+      reasoning: true,
+      input: ["text"],
+      cost: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0 },
+      contextWindow: 128000,
+      maxTokens: 8192,
+    } satisfies Model<"google-generative-ai">;
+
+    const params = buildGoogleGenerativeAiParams(
+      model,
+      {
+        messages: [{ role: "user", content: "hello", timestamp: 0 }],
+      } as never,
+      {
+        cachedContent: "cachedContents/prebuilt-context",
+      },
+    );
+
+    expect(params.cachedContent).toBe("cachedContents/prebuilt-context");
+  });
 });
diff --git a/src/agents/google-transport-stream.ts b/src/agents/google-transport-stream.ts
index 20ed9712e77..5c66b722ba8 100644
--- a/src/agents/google-transport-stream.ts
+++ b/src/agents/google-transport-stream.ts
@@ -30,6 +30,7 @@ type GoogleTransportModel = Model<"google-generative-ai"> & {
 type GoogleThinkingLevel = "MINIMAL" | "LOW" | "MEDIUM" | "HIGH";
 
 type GoogleTransportOptions = SimpleStreamOptions & {
+  cachedContent?: string;
   toolChoice?:
     | "auto"
     | "none"
@@ -49,6 +50,7 @@ type GoogleTransportOptions = SimpleStreamOptions & {
 };
 
 type GoogleGenerateContentRequest = {
+  cachedContent?: string;
   contents: Array<Record<string, unknown>>;
   generationConfig?: Record<string, unknown>;
   systemInstruction?: Record<string, unknown>;
@@ -441,6 +443,9 @@ export function buildGoogleGenerativeAiParams(
   const params: GoogleGenerateContentRequest = {
     contents: convertGoogleMessages(model, context),
   };
+  if (typeof options?.cachedContent === "string" && options.cachedContent.trim()) {
+    params.cachedContent = options.cachedContent.trim();
+  }
   if (Object.keys(generationConfig).length > 0) {
     params.generationConfig = generationConfig;
   }
diff --git a/src/agents/pi-embedded-runner/extra-params.google.test.ts b/src/agents/pi-embedded-runner/extra-params.google.test.ts
index 87bcf37ba41..e37ed4a872a 100644
--- a/src/agents/pi-embedded-runner/extra-params.google.test.ts
+++ b/src/agents/pi-embedded-runner/extra-params.google.test.ts
@@ -37,4 +37,71 @@ describe("extra-params: Google thinking payload compatibility", () => {
     expect(payload.config?.thinkingConfig?.thinkingBudget).toBeUndefined();
     expect(payload.config?.thinkingConfig?.thinkingLevel).toBe("HIGH");
   });
+
+  it("passes cachedContent through Google extra params", () => {
+    const { options } = runExtraParamsCase({
+      cfg: {
+        agents: {
+          defaults: {
+            models: {
+              "google/gemini-2.5-pro": {
+                params: {
+                  cachedContent: "cachedContents/test-cache",
+                },
+              },
+            },
+          },
+        },
+      } as never,
+      applyProvider: "google",
+      applyModelId: "gemini-2.5-pro",
+      model: {
+        api: "google-generative-ai",
+        provider: "google",
+        id: "gemini-2.5-pro",
+      } as unknown as Model<"openai-completions">,
+      payload: {
+        contents: [],
+      },
+    });
+
+    expect((options as { cachedContent?: string } | undefined)?.cachedContent).toBe(
+      "cachedContents/test-cache",
+    );
+  });
+
+  it("lets higher-precedence cachedContent override lower-precedence cached_content", () => {
+    const { options } = runExtraParamsCase({
+      cfg: {
+        agents: {
+          defaults: {
+            params: {
+              cached_content: "cachedContents/default-cache",
+            },
+            models: {
+              "google/gemini-2.5-pro": {
+                params: {
+                  cachedContent: "cachedContents/model-cache",
+                },
+              },
+            },
+          },
+        },
+      } as never,
+      applyProvider: "google",
+      applyModelId: "gemini-2.5-pro",
+      model: {
+        api: "google-generative-ai",
+        provider: "google",
+        id: "gemini-2.5-pro",
+      } as unknown as Model<"openai-completions">,
+      payload: {
+        contents: [],
+      },
+    });
+
+    expect((options as { cachedContent?: string } | undefined)?.cachedContent).toBe(
+      "cachedContents/model-cache",
+    );
+  });
 });
diff --git a/src/agents/pi-embedded-runner/extra-params.test-support.ts b/src/agents/pi-embedded-runner/extra-params.test-support.ts
index 36077789777..3e1dfd1ffbb 100644
--- a/src/agents/pi-embedded-runner/extra-params.test-support.ts
+++ b/src/agents/pi-embedded-runner/extra-params.test-support.ts
@@ -6,6 +6,7 @@ import { applyExtraParamsToAgent } from "./extra-params.js";
 
 export type ExtraParamsCapture<TPayload extends Record<string, unknown>> = {
   headers?: Record<string, string>;
+  options?: SimpleStreamOptions;
   payload: TPayload;
 };
 
@@ -45,6 +46,7 @@ export function runExtraParamsCase<
 
   const baseStreamFn: StreamFn = (model, _context, options) => {
     captured.headers = options?.headers;
+    captured.options = options;
     options?.onPayload?.(params.payload, model);
     return createMockStream();
   };
diff --git a/src/agents/pi-embedded-runner/extra-params.ts b/src/agents/pi-embedded-runner/extra-params.ts
index 681f231ff6c..f44ed001081 100644
--- a/src/agents/pi-embedded-runner/extra-params.ts
+++ b/src/agents/pi-embedded-runner/extra-params.ts
@@ -91,11 +91,22 @@ export function resolveExtraParams(params: {
     delete merged.textVerbosity;
   }
 
+  const resolvedCachedContent = resolveAliasedParamValue(
+    [defaultParams, globalParams, agentParams],
+    "cached_content",
+    "cachedContent",
+  );
+  if (resolvedCachedContent !== undefined) {
+    merged.cachedContent = resolvedCachedContent;
+    delete merged.cached_content;
+  }
+
   return merged;
 }
 
 type CacheRetentionStreamOptions = Partial<SimpleStreamOptions> & {
   cacheRetention?: "none" | "short" | "long";
+  cachedContent?: string;
   openaiWsWarmup?: boolean;
 };
 type SupportedTransport = Exclude<CacheRetentionStreamOptions["transport"], undefined>;
@@ -137,6 +148,15 @@ export function resolvePreparedExtraParams(params: {
     ...sanitizeExtraParamsRecord(resolvedExtraParams),
     ...override,
   };
+  const resolvedCachedContent = resolveAliasedParamValue(
+    [resolvedExtraParams, override],
+    "cached_content",
+    "cachedContent",
+  );
+  if (resolvedCachedContent !== undefined) {
+    merged.cachedContent = resolvedCachedContent;
+    delete merged.cached_content;
+  }
   return (
     providerRuntimeDeps.prepareProviderExtraParams({
       provider: params.provider,
@@ -207,6 +227,15 @@ function createStreamFnWithExtraParams(
   if (typeof extraParams.openaiWsWarmup === "boolean") {
     streamParams.openaiWsWarmup = extraParams.openaiWsWarmup;
   }
+  const cachedContent =
+    typeof extraParams.cachedContent === "string"
+      ? extraParams.cachedContent
+      : typeof extraParams.cached_content === "string"
+        ? extraParams.cached_content
+        : undefined;
+  if (typeof cachedContent === "string" && cachedContent.trim()) {
+    streamParams.cachedContent = cachedContent.trim();
+  }
   const initialCacheRetention = resolveCacheRetention(
     extraParams,
     provider,