fix(browser): keep tab stable across snapshot and act

src/agents/tools/browser-tool.ts

@@ -127,6 +127,7 @@ export function createBrowserTool(opts?: {
       "Control the browser via Clawdbot's browser control server (status/start/stop/profiles/tabs/open/snapshot/screenshot/actions).",
       'Profiles: use profile="chrome" for Chrome extension relay takeover (your existing Chrome tabs). Use profile="clawd" for the isolated clawd-managed browser.',
       "Chrome extension relay needs an attached tab: user must click the Clawdbot Browser Relay toolbar icon on the tab (badge ON). If no tab is connected, ask them to attach it.",
+      "When using refs from snapshot (e.g. e12), keep the same tab: prefer passing targetId from the snapshot response into subsequent actions (act/click/type/etc).",
       "Use snapshot+act for UI automation. Avoid act:wait by default; use only in exceptional cases when no reliable UI state exists.",
       `target selects browser location (sandbox|host|custom). Default: ${targetDefault}.`,
       "controlUrl implies target=custom (remote control server).",