diff --git a/packages/baoyu-chrome-cdp/src/index.ts b/packages/baoyu-chrome-cdp/src/index.ts
index 56f4ebd..0be48c3 100644
--- a/packages/baoyu-chrome-cdp/src/index.ts
+++ b/packages/baoyu-chrome-cdp/src/index.ts
@@ -271,6 +271,9 @@ export function getDefaultChromeUserDataDirs(channels: ChromeChannel[] = ["stabl
   return dirs;
 }
 
+// Best-effort reuse of an already-running local CDP session discovered from
+// known Chrome user-data dirs. This is distinct from Chrome DevTools MCP's
+// prompt-based --autoConnect flow.
 export async function discoverRunningChromeDebugPort(options: DiscoverRunningChromeOptions = {}): Promise<DiscoveredChrome | null> {
   const channels = options.channels ?? ["stable", "beta", "canary", "dev"];
   const timeoutMs = options.timeoutMs ?? 3_000;
diff --git a/skills/baoyu-danger-gemini-web/SKILL.md b/skills/baoyu-danger-gemini-web/SKILL.md
index 9552610..ad7269f 100644
--- a/skills/baoyu-danger-gemini-web/SKILL.md
+++ b/skills/baoyu-danger-gemini-web/SKILL.md
@@ -139,6 +139,10 @@ ${BUN_X} {baseDir}/scripts/main.ts "Hello" --json
 
 First run opens browser for Google auth. Cookies cached automatically.
 
+When no explicit profile dir is set, cookie refresh may reuse an already-running local Chrome/Chromium debugging session tied to a standard user-data dir.
+Set `--profile-dir` or `GEMINI_WEB_CHROME_PROFILE_DIR` to force a dedicated profile and skip existing-session reuse.
+This is a best-effort CDP session reuse path, not the Chrome DevTools MCP prompt-based `--autoConnect` flow described in Chrome's official docs.
+
 Supported browsers (auto-detected): Chrome, Chrome Canary/Beta, Chromium, Edge.
 
 Force refresh: `--login` flag. Override browser: `GEMINI_WEB_CHROME_PATH` env var.
diff --git a/skills/baoyu-danger-gemini-web/scripts/gemini-webapi/utils/load-browser-cookies.ts b/skills/baoyu-danger-gemini-web/scripts/gemini-webapi/utils/load-browser-cookies.ts
index 6c06051..97cbb0b 100644
--- a/skills/baoyu-danger-gemini-web/scripts/gemini-webapi/utils/load-browser-cookies.ts
+++ b/skills/baoyu-danger-gemini-web/scripts/gemini-webapi/utils/load-browser-cookies.ts
@@ -105,7 +105,7 @@ async function fetch_cookies_from_existing_chrome(
   const discovered = await discoverRunningChromeDebugPort();
   if (discovered === null) return null;
 
-  if (verbose) logger.info(`Found existing Chrome on port ${discovered.port}. Connecting via WebSocket...`);
+  if (verbose) logger.info(`Found reusable Chrome debugging session on port ${discovered.port}. Connecting via WebSocket...`);
 
   let cdp: CdpConnection | null = null;
   let targetId: string | null = null;
@@ -167,7 +167,7 @@ async function fetch_cookies_from_existing_chrome(
     if (verbose) logger.debug(`Existing Chrome did not yield valid cookies. Last keys: ${Object.keys(last).join(', ')}`);
     return null;
   } catch (e) {
-    if (verbose) logger.debug(`Failed to connect to existing Chrome: ${e instanceof Error ? e.message : String(e)}`);
+    if (verbose) logger.debug(`Failed to connect to existing Chrome debugging session: ${e instanceof Error ? e.message : String(e)}`);
     return null;
   } finally {
     if (cdp) {
diff --git a/skills/baoyu-danger-gemini-web/scripts/main.ts b/skills/baoyu-danger-gemini-web/scripts/main.ts
index 7286ec0..4ad860d 100644
--- a/skills/baoyu-danger-gemini-web/scripts/main.ts
+++ b/skills/baoyu-danger-gemini-web/scripts/main.ts
@@ -101,7 +101,12 @@ Options:
   -h, --help                Show help
 
 Env overrides:
-  GEMINI_WEB_DATA_DIR, GEMINI_WEB_COOKIE_PATH, GEMINI_WEB_CHROME_PROFILE_DIR, GEMINI_WEB_CHROME_PATH`);
+  GEMINI_WEB_DATA_DIR, GEMINI_WEB_COOKIE_PATH, GEMINI_WEB_CHROME_PROFILE_DIR, GEMINI_WEB_CHROME_PATH
+
+Notes:
+  By default cookie refresh may reuse an already-running local Chrome/Chromium debugging session.
+  Set --profile-dir or GEMINI_WEB_CHROME_PROFILE_DIR to force a dedicated profile and skip existing-session reuse.
+  This reuse path is separate from Chrome DevTools MCP's prompt-based --autoConnect flow.`);
 }
 
 function parseArgs(argv: string[]): CliArgs {
diff --git a/skills/baoyu-danger-gemini-web/scripts/vendor/baoyu-chrome-cdp/src/index.ts b/skills/baoyu-danger-gemini-web/scripts/vendor/baoyu-chrome-cdp/src/index.ts
index 56f4ebd..0be48c3 100644
--- a/skills/baoyu-danger-gemini-web/scripts/vendor/baoyu-chrome-cdp/src/index.ts
+++ b/skills/baoyu-danger-gemini-web/scripts/vendor/baoyu-chrome-cdp/src/index.ts
@@ -271,6 +271,9 @@ export function getDefaultChromeUserDataDirs(channels: ChromeChannel[] = ["stabl
   return dirs;
 }
 
+// Best-effort reuse of an already-running local CDP session discovered from
+// known Chrome user-data dirs. This is distinct from Chrome DevTools MCP's
+// prompt-based --autoConnect flow.
 export async function discoverRunningChromeDebugPort(options: DiscoverRunningChromeOptions = {}): Promise<DiscoveredChrome | null> {
   const channels = options.channels ?? ["stable", "beta", "canary", "dev"];
   const timeoutMs = options.timeoutMs ?? 3_000;
diff --git a/skills/baoyu-danger-x-to-markdown/scripts/vendor/baoyu-chrome-cdp/src/index.ts b/skills/baoyu-danger-x-to-markdown/scripts/vendor/baoyu-chrome-cdp/src/index.ts
index 56f4ebd..0be48c3 100644
--- a/skills/baoyu-danger-x-to-markdown/scripts/vendor/baoyu-chrome-cdp/src/index.ts
+++ b/skills/baoyu-danger-x-to-markdown/scripts/vendor/baoyu-chrome-cdp/src/index.ts
@@ -271,6 +271,9 @@ export function getDefaultChromeUserDataDirs(channels: ChromeChannel[] = ["stabl
   return dirs;
 }
 
+// Best-effort reuse of an already-running local CDP session discovered from
+// known Chrome user-data dirs. This is distinct from Chrome DevTools MCP's
+// prompt-based --autoConnect flow.
 export async function discoverRunningChromeDebugPort(options: DiscoverRunningChromeOptions = {}): Promise<DiscoveredChrome | null> {
   const channels = options.channels ?? ["stable", "beta", "canary", "dev"];
   const timeoutMs = options.timeoutMs ?? 3_000;
diff --git a/skills/baoyu-post-to-wechat/scripts/vendor/baoyu-chrome-cdp/src/index.ts b/skills/baoyu-post-to-wechat/scripts/vendor/baoyu-chrome-cdp/src/index.ts
index 56f4ebd..0be48c3 100644
--- a/skills/baoyu-post-to-wechat/scripts/vendor/baoyu-chrome-cdp/src/index.ts
+++ b/skills/baoyu-post-to-wechat/scripts/vendor/baoyu-chrome-cdp/src/index.ts
@@ -271,6 +271,9 @@ export function getDefaultChromeUserDataDirs(channels: ChromeChannel[] = ["stabl
   return dirs;
 }
 
+// Best-effort reuse of an already-running local CDP session discovered from
+// known Chrome user-data dirs. This is distinct from Chrome DevTools MCP's
+// prompt-based --autoConnect flow.
 export async function discoverRunningChromeDebugPort(options: DiscoverRunningChromeOptions = {}): Promise<DiscoveredChrome | null> {
   const channels = options.channels ?? ["stable", "beta", "canary", "dev"];
   const timeoutMs = options.timeoutMs ?? 3_000;
diff --git a/skills/baoyu-post-to-weibo/scripts/vendor/baoyu-chrome-cdp/src/index.ts b/skills/baoyu-post-to-weibo/scripts/vendor/baoyu-chrome-cdp/src/index.ts
index 56f4ebd..0be48c3 100644
--- a/skills/baoyu-post-to-weibo/scripts/vendor/baoyu-chrome-cdp/src/index.ts
+++ b/skills/baoyu-post-to-weibo/scripts/vendor/baoyu-chrome-cdp/src/index.ts
@@ -271,6 +271,9 @@ export function getDefaultChromeUserDataDirs(channels: ChromeChannel[] = ["stabl
   return dirs;
 }
 
+// Best-effort reuse of an already-running local CDP session discovered from
+// known Chrome user-data dirs. This is distinct from Chrome DevTools MCP's
+// prompt-based --autoConnect flow.
 export async function discoverRunningChromeDebugPort(options: DiscoverRunningChromeOptions = {}): Promise<DiscoveredChrome | null> {
   const channels = options.channels ?? ["stable", "beta", "canary", "dev"];
   const timeoutMs = options.timeoutMs ?? 3_000;
diff --git a/skills/baoyu-post-to-x/scripts/vendor/baoyu-chrome-cdp/src/index.ts b/skills/baoyu-post-to-x/scripts/vendor/baoyu-chrome-cdp/src/index.ts
index 56f4ebd..0be48c3 100644
--- a/skills/baoyu-post-to-x/scripts/vendor/baoyu-chrome-cdp/src/index.ts
+++ b/skills/baoyu-post-to-x/scripts/vendor/baoyu-chrome-cdp/src/index.ts
@@ -271,6 +271,9 @@ export function getDefaultChromeUserDataDirs(channels: ChromeChannel[] = ["stabl
   return dirs;
 }
 
+// Best-effort reuse of an already-running local CDP session discovered from
+// known Chrome user-data dirs. This is distinct from Chrome DevTools MCP's
+// prompt-based --autoConnect flow.
 export async function discoverRunningChromeDebugPort(options: DiscoverRunningChromeOptions = {}): Promise<DiscoveredChrome | null> {
   const channels = options.channels ?? ["stable", "beta", "canary", "dev"];
   const timeoutMs = options.timeoutMs ?? 3_000;
diff --git a/skills/baoyu-url-to-markdown/scripts/vendor/baoyu-chrome-cdp/src/index.ts b/skills/baoyu-url-to-markdown/scripts/vendor/baoyu-chrome-cdp/src/index.ts
index 56f4ebd..0be48c3 100644
--- a/skills/baoyu-url-to-markdown/scripts/vendor/baoyu-chrome-cdp/src/index.ts
+++ b/skills/baoyu-url-to-markdown/scripts/vendor/baoyu-chrome-cdp/src/index.ts
@@ -271,6 +271,9 @@ export function getDefaultChromeUserDataDirs(channels: ChromeChannel[] = ["stabl
   return dirs;
 }
 
+// Best-effort reuse of an already-running local CDP session discovered from
+// known Chrome user-data dirs. This is distinct from Chrome DevTools MCP's
+// prompt-based --autoConnect flow.
 export async function discoverRunningChromeDebugPort(options: DiscoverRunningChromeOptions = {}): Promise<DiscoveredChrome | null> {
   const channels = options.channels ?? ["stable", "beta", "canary", "dev"];
   const timeoutMs = options.timeoutMs ?? 3_000;