diff --git a/.gitignore b/.gitignore
index 55f905293cf..dc290f269a4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -83,3 +83,4 @@ USER.md
 .agent/*.json
 !.agent/workflows/
 local/
+package-lock.json
diff --git a/src/agents/tools/web-search.ts b/src/agents/tools/web-search.ts
index 0500bea0714..4f63ed350d2 100644
--- a/src/agents/tools/web-search.ts
+++ b/src/agents/tools/web-search.ts
@@ -569,7 +569,7 @@ async function runWebSearch(params: {
     params.provider === "brave"
       ? `${params.provider}:${params.query}:${params.count}:${params.country || "default"}:${params.search_lang || "default"}:${params.ui_lang || "default"}:${params.freshness || "default"}`
       : params.provider === "perplexity"
-        ? `${params.provider}:${params.query}:${params.perplexityBaseUrl ?? DEFAULT_PERPLEXITY_BASE_URL}:${params.perplexityModel ?? DEFAULT_PERPLEXITY_MODEL}`
+        ? `${params.provider}:${params.query}:${params.perplexityBaseUrl ?? DEFAULT_PERPLEXITY_BASE_URL}:${params.perplexityModel ?? DEFAULT_PERPLEXITY_MODEL}:${params.freshness || "default"}`
         : `${params.provider}:${params.query}:${params.grokModel ?? DEFAULT_GROK_MODEL}:${String(params.grokInlineCitations ?? false)}`,
   );
   const cached = readCache(SEARCH_CACHE, cacheKey);
diff --git a/src/agents/tools/web-tools.enabled-defaults.e2e.test.ts b/src/agents/tools/web-tools.enabled-defaults.e2e.test.ts
index 4c62bcdb527..c95e328b75e 100644
--- a/src/agents/tools/web-tools.enabled-defaults.e2e.test.ts
+++ b/src/agents/tools/web-tools.enabled-defaults.e2e.test.ts
@@ -159,7 +159,7 @@ describe("web_search perplexity baseUrl defaults", () => {
     expect(body.model).toBe("sonar-pro");
   });
 
-  it("rejects freshness for Perplexity provider", async () => {
+  it("passes freshness to Perplexity provider as search_recency_filter", async () => {
     vi.stubEnv("PERPLEXITY_API_KEY", "pplx-test");
     const mockFetch = vi.fn(() =>
       Promise.resolve({
@@ -174,10 +174,11 @@ describe("web_search perplexity baseUrl defaults", () => {
       config: { tools: { web: { search: { provider: "perplexity" } } } },
       sandboxed: true,
     });
-    const result = await tool?.execute?.(1, { query: "test", freshness: "pw" });
+    await tool?.execute?.(1, { query: "perplexity-freshness-test", freshness: "pw" });
 
-    expect(mockFetch).not.toHaveBeenCalled();
-    expect(result?.details).toMatchObject({ error: "unsupported_freshness" });
+    expect(mockFetch).toHaveBeenCalledOnce();
+    const body = JSON.parse(mockFetch.mock.calls[0][1].body as string);
+    expect(body.search_recency_filter).toBe("week");
   });
 
   it("defaults to OpenRouter when OPENROUTER_API_KEY is set", async () => {