diff --git a/packages/coding-agent/src/core/extensions/builtin/kimi-web-search/index.ts b/packages/coding-agent/src/core/extensions/builtin/kimi-web-search/index.ts
index 0df9bcdcc..0b338f837 100644
--- a/packages/coding-agent/src/core/extensions/builtin/kimi-web-search/index.ts
+++ b/packages/coding-agent/src/core/extensions/builtin/kimi-web-search/index.ts
@@ -227,11 +227,11 @@ export default function kimiWebSearchExtension(pi: ExtensionAPI): void {
 	}
 
 	pi.registerTool({
-		name: "SearchWeb",
-		label: "SearchWeb",
+		name: "kimi_search_web",
+		label: "kimi_search_web",
 		description:
 			"WebSearch tool allows you to search on the internet to get latest information, including news, documents, release notes, blog posts, papers, etc.",
-		promptSnippet: "SearchWeb — search the internet for current information",
+		promptSnippet: "kimi_search_web — search the internet for current information",
 		parameters: searchWebSchema,
 		async execute(toolCallId, params, signal, _onUpdate, ctx) {
 			const apiKey = await resolveApiKey(ctx);
@@ -251,10 +251,10 @@ export default function kimiWebSearchExtension(pi: ExtensionAPI): void {
 	});
 
 	pi.registerTool({
-		name: "FetchURL",
-		label: "FetchURL",
-		description: "FetchURL tool allows you to fetch content from a URL.",
-		promptSnippet: "FetchURL — fetch web page content from a URL",
+		name: "kimi_fetch_url",
+		label: "kimi_fetch_url",
+		description: "kimi_fetch_url tool allows you to fetch content from a URL.",
+		promptSnippet: "kimi_fetch_url — fetch web page content from a URL",
 		parameters: fetchUrlSchema,
 		async execute(toolCallId, params, signal, _onUpdate, ctx) {
 			const apiKey = await resolveApiKey(ctx);
diff --git a/packages/coding-agent/test/suite/regressions/3592-no-builtin-tools-keeps-extension-tools.test.ts b/packages/coding-agent/test/suite/regressions/3592-no-builtin-tools-keeps-extension-tools.test.ts
index beb5b777f..0d1e7bf07 100644
--- a/packages/coding-agent/test/suite/regressions/3592-no-builtin-tools-keeps-extension-tools.test.ts
+++ b/packages/coding-agent/test/suite/regressions/3592-no-builtin-tools-keeps-extension-tools.test.ts
@@ -79,21 +79,27 @@ describe("regression #3592: no-builtin-tools keeps extension tools enabled", ()
 				.map((tool) => tool.name)
 				.sort(),
 		).toEqual([
-			"FetchURL",
-			"SearchWeb",
 			"apply_patch",
 			"bash",
 			"dynamic_tool",
 			"edit",
 			"find",
 			"grep",
+			"kimi_fetch_url",
+			"kimi_search_web",
 			"ls",
 			"read",
 			"todoread",
 			"todowrite",
 			"write",
 		]);
-		expect(session.getActiveToolNames()).toEqual(["todowrite", "todoread", "SearchWeb", "FetchURL", "dynamic_tool"]);
+		expect(session.getActiveToolNames()).toEqual([
+			"todowrite",
+			"todoread",
+			"kimi_search_web",
+			"kimi_fetch_url",
+			"dynamic_tool",
+		]);
 		expect(session.systemPrompt).toContain("- dynamic_tool: Run dynamic test behavior");
 		expect(session.systemPrompt).not.toContain("- read:");
 		expect(session.systemPrompt).not.toContain("- bash:");
@@ -125,7 +131,13 @@ describe("regression #3592: no-builtin-tools keeps extension tools enabled", ()
 			noTools: "builtin",
 		});
 
-		expect(session.getActiveToolNames()).toEqual(["apply_patch", "todowrite", "todoread", "SearchWeb", "FetchURL"]);
+		expect(session.getActiveToolNames()).toEqual([
+			"apply_patch",
+			"todowrite",
+			"todoread",
+			"kimi_search_web",
+			"kimi_fetch_url",
+		]);
 		expect(session.systemPrompt).toContain("- todowrite:");
 		expect(session.systemPrompt).not.toContain("- read:");
 		session.dispose();