teams anonym with lobby

CHANGES_SINCE_WORKING.md

@@ -0,0 +1,146 @@
+# Changes since last working state ("jetzt geht es" — 12 May 2026, 14:01)
+
+All changes are **uncommitted** (working tree vs HEAD). HEAD = last git commit (the known-good baseline from ~3 weeks ago).
+
+## Legend
+
+- **PRE-SUCCESS**: Change was present at 14:01 when the bot successfully joined
+- **POST-SUCCESS**: Change was made after 14:01 (potential regression source)
+- **REVERTED**: Was added after 14:01 then reverted — should be back to pre-success state
+
+---
+
+## 1. `audioCaptureProcedure.ts` — Audio Capture Gating (PRE-SUCCESS)
+
+**What:** Complete rewrite of the RTCPeerConnection wrapper. Instead of immediately building an AudioContext/MediaStreamSource on every `track` event, the wrapper now:
+- Sets `window.__audioCaptureEnabled = false` by default
+- Only logs diagnostics while disabled (no clone, no AudioContext, no MediaStream)
+- Exposes `window.__audioCaptureAttachTrack(pc, track)` as the audio graph builder
+- `startCapture()` (called AFTER `in_meeting`) sets the flag to `true` and retroactively attaches existing tracks via `getReceivers()`
+- The `ended` handler does passive cleanup (no `ctx.close()`, no `disconnect()`)
+
+**Why:** Prevents `rejectMediaDescriptionsUpdateAsync` crash by keeping out of Teams' WebRTC pipeline during pre-join/lobby/SDP renegotiation.
+
+**Risk:** This was the exact fix that led to "jetzt geht es". Should be safe.
+
+---
+
+## 2. `joinProcedure.ts` — Blind Wait Elimination + Selector Rewrite (PRE-SUCCESS)
+
+### 2a. New helper functions (replacing `waitForTimeout`)
+- `_waitForPreJoinAfterLauncher()` — waits for pre-join UI (10s timeout)
+- `_waitForNoAudioVideoModalGone()` — waits for no-AV modal dismissal
+- `_waitForPermissionOverlayCleared()` — waits for permission dialog gone
+- `_waitForLeaveUiSettled()` — waits for hangup button to disappear
+
+All `waitForTimeout` calls replaced with these. **Timeout is 10s** (vs original 1-2s).
+
+### 2b. `isInMeetingLobby()` rewrite
+**OLD (HEAD):** Text-based detection using `bodyText.includes('will let you in')` + `data-tid` fallback.
+**NEW:** Purely structural selectors: `[data-tid="lobby-screen"]`, `[data-cid="lobby-screen"]`, `[id*="lobby"]`, `[class*="lobby" i]`, etc.
+
+### 2c. `isInMeeting()` rewrite
+**OLD (HEAD):** Mixed text-based (`aria-label*="Leave"`, `bodyText.includes('Mute')`) + `data-tid` selectors.
+**NEW:** Purely structural: `button[id="hangup-button"]`, `button[id="microphone-button"]`, `[data-cid="ts-hangup-btn"]`, `[data-cid="calling-unified-bar"]`, etc. Fallback uses DOM structure check (class-based `calling-controls`, button ID counting).
+
+**Risk:** The new `_waitForPreJoinAfterLauncher()` has a 10s timeout. In logs, this timeout fires ("Pre-join UI not detected after launcher") — the old 2s `waitForTimeout` was faster. This extra delay might change timing.
+
+---
+
+## 3. `orchestrator.ts` — Lobby Admission + Browser Args (MIXED)
+
+### 3a. `_waitForMeetingAdmission()` (POST-SUCCESS, then re-fixed)
+**At 14:01:** Had `wasInLobby` tracking — when lobby disappeared, it kept waiting patiently for meeting UI.
+**After 14:01:** Was simplified to just poll `isInMeeting()` without tracking lobby state. Bot couldn't detect admission.
+**Current:** Re-added `wasInLobby` tracking + `isInMeetingLobby()` check per iteration.
+
+### 3b. `_launchBrowser()` comment (PRE-SUCCESS)
+Added documentation comment explaining why anon and auth use different Chromium args.
+
+### 3c. `_attemptAuthJoin()` cleanup (PRE-SUCCESS)
+Minor comment/formatting changes in the `anon=true` stripping logic.
+
+### 3d. `_stripAnonFromInnerMeetingUrl()` comment (PRE-SUCCESS)
+Expanded docstring.
+
+### 3e. ChatProcedure constructor trailing comma (PRE-SUCCESS)
+Cosmetic: added trailing comma after the callback parameter.
+
+---
+
+## 4. `chatProcedure.ts` — Simplified Compose + Root-Cause Guard (MIXED)
+
+### 4a. `_ensureComposeExpanded()` (PRE-SUCCESS — was being developed at 14:01)
+New method that detects Teams' "simplified compose" layout (light-meetings) and clicks the expand button so ckeditor is visible.
+
+### 4b. Updated `_isChatPanelOpen()` selectors (PRE-SUCCESS)
+Added `[data-tid="ckeditor"]`, `[data-tid="newMessageCommands-expand-compose"]`, `[data-tid="simplified-compose-bottom-toolbar"]`.
+
+### 4c. Root-cause guard: `if (!text && author !== 'Unknown')` (PRE-SUCCESS)
+In both periodic scan and MutationObserver paths: the `innerText` fallback only fires when an author was actually identified. Prevents "Unknown: 22:04" timestamp noise.
+
+### 4d. Container fallback for light-meetings (PRE-SUCCESS)
+When the chat container has `offsetHeight === 0` or yields 0 candidates but global `fui-ChatMessage` elements exist, promotes search target from container to `document`.
+
+### 4e. `_sendChatMessage()` selector additions (PRE-SUCCESS)
+Added `[data-tid="ckeditor"]` as a selector for the input box.
+
+### 4f. Reverted changes (were POST-SUCCESS, now back to PRE-SUCCESS state)
+- ~~`botName` constructor parameter~~ → removed
+- ~~expanded `noisePatterns`~~ → removed
+- ~~`isOwnAuthor()` skip logic~~ → removed
+
+---
+
+## 5. `teamsActionsService.ts` — Blind Wait Elimination (PRE-SUCCESS)
+
+Replaced `waitForTimeout` calls with targeted waits:
+- Menu dismissal: `waitForFunction(() => !document.querySelector('[role="menu"]'))`
+- Chat input focus: `waitForFunction(() => document.activeElement?.matches(...))`
+- More menu: `waitForSelector('[role="menu"]')`
+- Captions button: `waitForSelector('#closed-captions-button')`
+- Chat panel input: `waitForSelector('[data-tid="ckeditor-replyConversation"]')`
+- Removed delay after media toggles
+
+---
+
+## 6. `authProcedure.ts` — Blind Wait Elimination (PRE-SUCCESS)
+
+Replaced `waitForTimeout` calls with targeted waits:
+- After sign-in click: wait for MFA/error/KMSI indicator
+- After email Next click: wait for password input
+- After "Stay signed in": wait for KMSI banner dismissal
+
+---
+
+## 7. `authTestProcedure.ts` — Blind Wait Elimination (PRE-SUCCESS)
+
+Removed redundant `waitForTimeout` calls and replaced with targeted `waitForSelector` calls for:
+- Login page elements, pre-join screen, meeting UI, launcher, sign-in dialog
+
+---
+
+## 8. `backgroundProcedure.ts` — Blind Wait Elimination (PRE-SUCCESS)
+
+Replaced `waitForTimeout` calls with targeted waits:
+- Background effects panel visibility
+- File input appearance after add-image click
+- Background thumbnail appearance after upload
+- Panel dismissal via Escape
+
+---
+
+## Summary: What to roll back for a clean test
+
+If rolling back to HEAD (git checkout):
+- You lose the **audio capture gating** (the fix that made "jetzt geht es" work)
+- You lose the **blind wait elimination** (improves robustness)
+- You lose the **chat simplified compose** fix
+- You lose the **structural selector rewrites** for lobby/meeting detection
+
+**Recommended selective rollback** (keep what was working):
+1. Keep `audioCaptureProcedure.ts` changes (audio capture gating)
+2. Keep `chatProcedure.ts` changes (compose expand, root-cause guard, container fallback)
+3. Consider reverting `joinProcedure.ts` helper timeouts back to shorter values (10s → 2-3s) — the 10s `_waitForPreJoinAfterLauncher` is timing out and adding unnecessary delay
+4. Keep `orchestrator.ts` `_waitForMeetingAdmission` with `wasInLobby` tracking
+5. The blind-wait changes in auth/background/teamsActions are safe (only affect those specific flows)

src/bot/audioCaptureProcedure.ts

@@ -157,76 +157,63 @@ export class AudioCaptureProcedure {
     this._logger.info('[AudioCapture] Injecting RTCPeerConnection wrapper (all frames)...');
 
     await this._page.context().addInitScript((workletCode: string) => {
-      (window as any).__audioCaptureChunks = [] as any[];
+      const w = window as any;
-      (window as any).__audioCaptureProcessors = {} as Record<string, any>;
+      w.__audioCaptureChunks = [] as any[];
-      (window as any).__audioCaptureContexts = {} as Record<string, AudioContext>;
+      w.__audioCaptureProcessors = {} as Record<string, any>;
-      (window as any).__audioCapturePeerConnections = [] as RTCPeerConnection[];
+      w.__audioCaptureContexts = {} as Record<string, AudioContext>;
+      w.__audioCapturePeerConnections = [] as RTCPeerConnection[];
+      // Flag controlled from Node.js (orchestrator): false until the bot
+      // is actually `in_meeting`. While false, we observe PCs and tracks
+      // but DO NOT build any audio graph. This keeps us completely out of
+      // Teams' WebRTC pipeline during pre-join, lobby, and SDP renegotiation
+      // — which is where the `rejectMediaDescriptionsUpdateAsync` crash
+      // would otherwise occur.
+      w.__audioCaptureEnabled = false;
 
-      const OrigRTC = window.RTCPeerConnection;
+      // The audio graph builder is exposed on window so it can be invoked
-
+      // from both the wrapped 'track' event handler (for new tracks after
-      // @ts-ignore — wrapping constructor
+      // capture is enabled) and from startCapture() (to attach to tracks
-      window.RTCPeerConnection = function (this: RTCPeerConnection, ...args: any[]) {
+      // that already exist on connected PCs at the moment of enable).
-        const pc = new OrigRTC(...args);
+      w.__audioCaptureAttachTrack = (pc: RTCPeerConnection, track: MediaStreamTrack) => {
-        try {
+        if (track.kind !== 'audio') return;
-          const pcs = (window as any).__audioCapturePeerConnections as RTCPeerConnection[];
+        const trackId = track.id || `audio-track-${Date.now()}`;
-          pcs.push(pc);
+        const processors = w.__audioCaptureProcessors as Record<string, any>;
-          // #region agent log
+        if (processors[trackId]) return;
-          console.log(`[AudioCapture][DIAG] New RTCPeerConnection created (total: ${pcs.length}), config:`, JSON.stringify(args[0] || {}).substring(0, 200));
+        if (track.readyState === 'ended') {
-          // #endregion
+          console.log(`[AudioCapture] Track already ended; skipping: ${trackId}`);
-        } catch {
-          // ignore
-        }
-
-        pc.addEventListener('track', (event: RTCTrackEvent) => {
-          if (event.track.kind !== 'audio') return;
-
-          const trackId = event.track.id || `audio-track-${Date.now()}`;
-          const processors = (window as any).__audioCaptureProcessors as Record<string, any>;
-          if (processors[trackId]) {
           return;
         }
-
-          // #region agent log
         console.log(
-            `[AudioCapture][DIAG] Track received: id=${trackId}, enabled=${event.track.enabled}, muted=${event.track.muted}, readyState=${event.track.readyState}, label=${event.track.label}`
+          `[AudioCapture][DIAG] Attaching audio graph: trackId=${trackId}, label="${track.label}", pc.connectionState=${pc.connectionState}`
         );
-          event.track.addEventListener('mute', () => {
-            console.log(`[AudioCapture][DIAG] Track MUTED: id=${trackId}`);
-          });
-          event.track.addEventListener('unmute', () => {
-            console.log(`[AudioCapture][DIAG] Track UNMUTED: id=${trackId}`);
-          });
-          // #endregion
 
         try {
-            const AudioCtx = window.AudioContext || (window as any).webkitAudioContext;
+          const AudioCtx = window.AudioContext || (w.webkitAudioContext);
           const ctx = new AudioCtx();
           const nativeRate = ctx.sampleRate;
-            const stream = new MediaStream([event.track]);
+          // Clone so our capture holds an independent handle; Teams keeps
+          // its original track untouched.
+          const capturedTrack = track.clone();
+          const stream = new MediaStream([capturedTrack]);
           const source = ctx.createMediaStreamSource(stream);
           const targetRate = 16000;
 
-            // #region agent log
-            console.log(
-              `[AudioCapture][DIAG] AudioContext: state=${ctx.state}, sampleRate=${nativeRate}, stream.active=${stream.active}, streamTracks=${stream.getAudioTracks().length}`
-            );
           ctx.addEventListener('statechange', () => {
             console.log(`[AudioCapture][DIAG] AudioContext statechange: ${ctx.state} for track=${trackId}`);
           });
-            // #endregion
 
           const silentGain = ctx.createGain();
           silentGain.gain.value = 0;
 
           const pushChunk = (base64Data: string, rms: number) => {
-              const chunks = (window as any).__audioCaptureChunks as any[];
+            const chunks = w.__audioCaptureChunks as any[];
             if (chunks.length < 60) {
               chunks.push({
                 data: base64Data,
                 sampleRate: targetRate,
                 captureDiagnostics: {
                   trackId,
-                    readyState: event.track.readyState,
+                  readyState: track.readyState,
                   rms: Number(rms.toFixed(6)),
                   nativeSampleRate: nativeRate,
                 },
@@ -263,8 +250,7 @@ export class AudioCaptureProcedure {
               workletNode.connect(silentGain);
               silentGain.connect(ctx.destination);
 
-                const processorsObj = (window as any).__audioCaptureProcessors as Record<string, any>;
+              processors[trackId] = workletNode;
-                processorsObj[trackId] = workletNode;
               console.log(`[AudioCapture] WebRTC audio track intercepted (AudioWorklet): track=${trackId}, native=${nativeRate}Hz -> 16kHz mono`);
               return true;
             } catch (err) {
@@ -361,43 +347,72 @@ export class AudioCaptureProcedure {
             scriptProcessor.connect(silentGain);
             silentGain.connect(ctx.destination);
 
-              const processorsObj = (window as any).__audioCaptureProcessors as Record<string, any>;
+            processors[trackId] = scriptProcessor;
-              processorsObj[trackId] = scriptProcessor;
             console.log(`[AudioCapture] WebRTC audio track intercepted (ScriptProcessor fallback): track=${trackId}, native=${nativeRate}Hz -> 16kHz mono`);
           };
 
           (async () => {
             const ok = await useWorklet();
             if (!ok) useScriptProcessor();
-
             ctx.resume().catch(() => {});
           })();
 
-            // Clean up when the track ends (peer leaves, renegotiation, etc.)
+          track.addEventListener('ended', () => {
-            event.track.addEventListener('ended', () => {
+            try { capturedTrack.stop(); } catch { /* already stopped */ }
-              try {
+            delete processors[trackId];
-                if (workletNode) {
+            delete (w.__audioCaptureContexts as Record<string, AudioContext>)[trackId];
-                  workletNode.disconnect();
+            console.log(`[AudioCapture] Audio track ended: track=${trackId} (cloned track stopped; ctx kept open)`);
-                }
-                if (scriptProcessor) {
-                  scriptProcessor.disconnect();
-                }
-                source.disconnect();
-                silentGain.disconnect();
-                ctx.close();
-              } catch { /* already closed */ }
-              const processorsObj = (window as any).__audioCaptureProcessors as Record<string, any>;
-              const contextsObj = (window as any).__audioCaptureContexts as Record<string, AudioContext>;
-              delete processorsObj[trackId];
-              delete contextsObj[trackId];
-              console.log(`[AudioCapture] Audio track ended: track=${trackId}, resources cleaned up`);
           });
 
-            const contextsObj = (window as any).__audioCaptureContexts as Record<string, AudioContext>;
+          (w.__audioCaptureContexts as Record<string, AudioContext>)[trackId] = ctx;
-            contextsObj[trackId] = ctx;
         } catch (err) {
           console.error('[AudioCapture] Failed to set up audio capture:', err);
         }
+      };
+
+      const OrigRTC = window.RTCPeerConnection;
+
+      // @ts-ignore — wrapping constructor
+      window.RTCPeerConnection = function (this: RTCPeerConnection, ...args: any[]) {
+        const pc = new OrigRTC(...args);
+        try {
+          const pcs = w.__audioCapturePeerConnections as RTCPeerConnection[];
+          pcs.push(pc);
+          console.log(`[AudioCapture][DIAG] New RTCPeerConnection created (total: ${pcs.length})`);
+        } catch {
+          // ignore
+        }
+
+        // CRITICAL: while `__audioCaptureEnabled === false` (i.e. the bot
+        // is still in pre-join / lobby), this handler MUST NOT touch the
+        // track at all — no clone(), no MediaStream(), no AudioContext.
+        // Any of those triggers Teams' bundle to crash with
+        // `rejectMediaDescriptionsUpdateAsync` during SDP renegotiation.
+        // We simply observe the event. Once the orchestrator calls
+        // startCapture() (after the bot is admitted into the meeting),
+        // it iterates existing receivers AND sets the flag so any later
+        // 'track' events attach immediately.
+        pc.addEventListener('track', (event: RTCTrackEvent) => {
+          if (event.track.kind !== 'audio') return;
+          console.log(
+            `[AudioCapture][DIAG] Track event: id=${event.track.id}, label="${event.track.label}", captureEnabled=${w.__audioCaptureEnabled}, pc.connectionState=${pc.connectionState}`
+          );
+          if (!w.__audioCaptureEnabled) return;
+          if (pc.connectionState === 'connected') {
+            w.__audioCaptureAttachTrack(pc, event.track);
+          } else {
+            const onStateChange = () => {
+              if (pc.connectionState === 'connected') {
+                pc.removeEventListener('connectionstatechange', onStateChange);
+                if (w.__audioCaptureEnabled) {
+                  w.__audioCaptureAttachTrack(pc, event.track);
+                }
+              } else if (pc.connectionState === 'failed' || pc.connectionState === 'closed') {
+                pc.removeEventListener('connectionstatechange', onStateChange);
+              }
+            };
+            pc.addEventListener('connectionstatechange', onStateChange);
+          }
         });
 
         return pc;
@@ -419,6 +434,35 @@ export class AudioCaptureProcedure {
     if (this._isCapturing) return;
     this._isCapturing = true;
 
+    // Enable capture and attach to any audio tracks already present on
+    // connected peer connections. From this moment on, future 'track'
+    // events also build their audio graph automatically. We deliberately
+    // do NOT do any of this earlier — see the wrapper for the reason.
+    try {
+      const attached = await this._page.evaluate(() => {
+        const w = window as any;
+        w.__audioCaptureEnabled = true;
+        const pcs = (w.__audioCapturePeerConnections as RTCPeerConnection[]) || [];
+        const result: { trackId: string; label: string; pcState: string }[] = [];
+        for (const pc of pcs) {
+          if (pc.connectionState !== 'connected') continue;
+          const receivers = pc.getReceivers();
+          for (const r of receivers) {
+            const t = r.track;
+            if (!t || t.kind !== 'audio' || t.readyState !== 'live') continue;
+            result.push({ trackId: t.id, label: t.label || '', pcState: pc.connectionState });
+            w.__audioCaptureAttachTrack(pc, t);
+          }
+        }
+        return result;
+      });
+      this._logger.info(
+        `[AudioCapture] Capture enabled. Existing audio tracks attached: ${attached.length} (${JSON.stringify(attached)})`
+      );
+    } catch (err) {
+      this._logger.warn(`[AudioCapture] Failed to enable capture / iterate existing tracks: ${err}`);
+    }
+
     this._logger.info('[AudioCapture] Starting audio chunk polling...');
 
     // #region agent log
@@ -478,8 +522,10 @@ export class AudioCaptureProcedure {
 
     try {
       await this._page.evaluate(() => {
-        const processors = (window as any).__audioCaptureProcessors as Record<string, any>;
+        const w = window as any;
-        const contexts = (window as any).__audioCaptureContexts as Record<string, AudioContext>;
+        w.__audioCaptureEnabled = false;
+        const processors = w.__audioCaptureProcessors as Record<string, any>;
+        const contexts = w.__audioCaptureContexts as Record<string, AudioContext>;
         Object.keys(processors || {}).forEach((trackId) => {
           try {
             processors[trackId]?.disconnect();
@@ -494,8 +540,8 @@ export class AudioCaptureProcedure {
             // ignore
           }
         });
-        (window as any).__audioCaptureProcessors = {};
+        w.__audioCaptureProcessors = {};
-        (window as any).__audioCaptureContexts = {};
+        w.__audioCaptureContexts = {};
       });
     } catch {
       // Page might already be closed

src/bot/authProcedure.ts

@@ -97,7 +97,20 @@ export class AuthProcedure {
       this._logger.info('Password entered');
 
       await this._clickSignInButton();
-      await this._page.waitForTimeout(3000);
+      try {
+        await this._page.waitForFunction(
+          () =>
+            !!document.querySelector('#idRichContext_DisplaySign') ||
+            !!document.querySelector('#idDiv_SAOTCAS_Description') ||
+            !!document.querySelector('#idDiv_SAOTCC_Description') ||
+            !!document.querySelector('#passwordError') ||
+            !!document.querySelector('#idSIButton9') ||
+            !!document.querySelector('#KmsiBanner'),
+          { timeout: 10000 },
+        );
+      } catch {
+        this._logger.warn('No MFA/error/redirect indicator found after sign-in click');
+      }
 
       // Step 5: Check for MFA or password error
       const mfaChallenge = await this._detectMfaChallenge();
@@ -197,7 +210,7 @@ export class AuthProcedure {
         if (button) {
           await button.click();
           this._logger.info(`Clicked Next: ${selector}`);
-          await this._page.waitForTimeout(3000);
+          await this._waitForNextStepAfterEmail();
           return;
         }
       } catch {
@@ -207,7 +220,21 @@ export class AuthProcedure {
 
     this._logger.warn('No Next button found via selectors, pressing Enter');
     await this._page.keyboard.press('Enter');
-    await this._page.waitForTimeout(3000);
+    await this._waitForNextStepAfterEmail();
+  }
+
+  private async _waitForNextStepAfterEmail(): Promise<void> {
+    try {
+      await this._page.waitForFunction(
+        () =>
+          !!document.querySelector('input#i0118, input[name="passwd"], input[type="password"]') ||
+          !!document.querySelector('#usernameError, #displayName') ||
+          !!document.querySelector('#idRichContext_DisplaySign'),
+        { timeout: 10000 },
+      );
+    } catch {
+      this._logger.warn('No expected element appeared after clicking Next (email step)');
+    }
   }
 
   /**
@@ -500,7 +527,14 @@ export class AuthProcedure {
           if (button) {
             await button.click();
             this._logger.info('Clicked "Stay signed in" - Yes');
-            await this._page.waitForTimeout(2000);
+            try {
+              await this._page.waitForFunction(
+                () => !document.querySelector('#idSIButton9, #KmsiBanner'),
+                { timeout: 10000 },
+              );
+            } catch {
+              this._logger.warn('"Stay signed in" prompt did not dismiss in time');
+            }
             return;
           }
         } catch {

src/bot/authTestProcedure.ts

@@ -250,13 +250,10 @@ async function _runVariant(
       _log('warn', `No login redirect, current URL: ${page.url().substring(0, 150)}`);
     }
 
-    // Wait for login page to render
     try {
       await page.waitForSelector('input[name="loginfmt"], input[type="email"]', { timeout: 15000, state: 'visible' });
-      await page.waitForTimeout(1000);
     } catch {
       _log('warn', 'Login page elements not found');
-      await page.waitForTimeout(2000);
     }
     await _screenshotStep('1 - Login-Seite');
 
@@ -357,7 +354,6 @@ async function _runVariant(
       } catch {
         _log('warn', 'Pre-join "Join now" button not found after 30s');
       }
-      await page.waitForTimeout(2000);
     }
     await _screenshotStep('3 - Pre-Join Ansicht');
 
@@ -402,7 +398,6 @@ async function _runVariant(
     // Wait for the actual meeting view (hangup button = we're in the meeting)
     if (joinNowClicked) {
       _log('info', 'Waiting for meeting to load...');
-      await page.waitForTimeout(5000);
       try {
         await page.waitForSelector(
           'button[id="hangup-button"], button[data-tid="hangup-button"], #hangup-button',
@@ -412,7 +407,6 @@ async function _runVariant(
       } catch {
         _log('warn', 'Hangup button not found after 30s');
       }
-      await page.waitForTimeout(3000);
     }
     await _screenshotStep('4 - Im Meeting');
 
@@ -964,7 +958,14 @@ async function _handleLauncher(page: Page): Promise<void> {
       if (button) {
         await button.click();
         logger.info(`[AuthTest] Clicked launcher: ${selector}`);
-        await page.waitForTimeout(3000);
+        try {
+          await page.waitForSelector(
+            'input[data-tid="prejoin-display-name-input"], #prejoin-join-button, button[data-tid="prejoin-join-button"]',
+            { timeout: 10000 },
+          );
+        } catch {
+          logger.warn('[AuthTest] Pre-join screen not found after launcher click');
+        }
         return;
       }
     } catch {
@@ -1002,8 +1003,14 @@ async function _clickSignInLink(
       if (element) {
         await element.click();
         _log('info', `Clicked Sign-in link: ${selector}`);
-        // Wait for the inline modal or redirect to appear
+        try {
-        await page.waitForTimeout(3000);
+          await page.waitForSelector(
+            'input[name="loginfmt"], input[type="email"], [data-testid="authLoginDialogNextButton"]',
+            { timeout: 10000, state: 'visible' },
+          );
+        } catch {
+          _log('warn', 'Auth dialog / email input not found after sign-in click');
+        }
         return true;
       }
     } catch {
@@ -1156,7 +1163,14 @@ async function _attemptAuth(page: Page, email: string, password: string): Promis
           await el.click();
           logger.info(`[AuthTest] Clicked sign-in link: ${selector}`);
           clicked = true;
-          await page.waitForTimeout(3000);
+          try {
+            await page.waitForSelector(
+              'input[name="loginfmt"], input[type="email"], [data-testid="authLoginDialogNextButton"]',
+              { timeout: 10000, state: 'visible' },
+            );
+          } catch {
+            logger.warn('[AuthTest] Auth dialog not found after sign-in click');
+          }
           break;
         }
       } catch {
@@ -1173,9 +1187,15 @@ async function _attemptAuth(page: Page, email: string, password: string): Promis
     const authProcedure = new AuthProcedure(page, logger);
     const authResult = await authProcedure.authenticateWithMicrosoft(email, password, true);
 
-    // Wait for redirect back to Teams after auth
     if (authResult) {
-      await page.waitForTimeout(5000);
+      try {
+        await page.waitForSelector(
+          '#prejoin-join-button, button[data-tid="prejoin-join-button"], button[id="hangup-button"]',
+          { timeout: 15000 },
+        );
+      } catch {
+        logger.warn('[AuthTest] Teams page not loaded after auth');
+      }
     }
 
     return authResult;

src/bot/backgroundProcedure.ts

@@ -10,6 +10,11 @@ import * as os from 'os';
  * Must be called AFTER the bot is on the pre-join screen but BEFORE clicking "Join now".
  * Only works for authenticated joins (anonymous guests may not have background options).
  */
+const _BG_WAIT_MS = 10000;
+const _BG_EFFECT_GRID_SEL =
+  'button[aria-label*="None" i], button[aria-label*="Kein" i], [data-tid="background-item-none"], ' +
+  '[data-tid="background-image"], [class*="background-item"], li[role="listitem"] button';
+
 export class BackgroundProcedure {
   private _page: Page;
   private _logger: Logger;
@@ -30,7 +35,6 @@ export class BackgroundProcedure {
       if (!opened) {
         return false;
       }
-      await this._page.waitForTimeout(500);
 
       const noEffectSelectors: string[] = [
         'button[aria-label*="None" i]',
@@ -46,7 +50,6 @@ export class BackgroundProcedure {
         if (btn) {
           await btn.click();
           this._logger.info(`Selected no background effect: ${sel}`);
-          await this._page.waitForTimeout(500);
           await this._dismissPanelIfOpen();
           return true;
         }
@@ -59,7 +62,6 @@ export class BackgroundProcedure {
       if (tile) {
         await tile.click();
         this._logger.info('Clicked first background effects tile (often no effect)');
-        await this._page.waitForTimeout(400);
         await this._dismissPanelIfOpen();
         return true;
       }
@@ -76,7 +78,10 @@ export class BackgroundProcedure {
   private async _dismissPanelIfOpen(): Promise<void> {
     try {
       await this._page.keyboard.press('Escape');
-      await this._page.waitForTimeout(200);
+      await this._page.waitForFunction(
+        () => !document.querySelector('[data-tid="background-settings-panel"], [class*="background-effects"]'),
+        { timeout: 5000 },
+      ).catch(() => {});
     } catch {
       // ignore
     }
@@ -151,7 +156,11 @@ export class BackgroundProcedure {
         if (button) {
           await button.click();
           this._logger.info(`Clicked background effects button: ${selector}`);
-          await this._page.waitForTimeout(2000);
+          try {
+            await this._page.waitForSelector(_BG_EFFECT_GRID_SEL, { state: 'visible', timeout: _BG_WAIT_MS });
+          } catch {
+            this._logger.warn('Background effects panel elements not visible after click');
+          }
           return true;
         }
       } catch {
@@ -186,7 +195,11 @@ export class BackgroundProcedure {
             await button.click();
             this._logger.info(`Clicked add image button: ${selector}`);
             addButtonClicked = true;
-            await this._page.waitForTimeout(1000);
+            try {
+              await this._page.waitForSelector('input[type="file"]', { state: 'attached', timeout: _BG_WAIT_MS });
+            } catch {
+              this._logger.warn('File input not found after clicking add-image button');
+            }
             break;
           }
         } catch {
@@ -199,7 +212,14 @@ export class BackgroundProcedure {
       if (fileInput) {
         await fileInput.setInputFiles(filePath);
         this._logger.info('Background image uploaded via file input');
-        await this._page.waitForTimeout(2000);
+        try {
+          await this._page.waitForSelector(
+            '[data-tid="background-image"], .background-image-item',
+            { state: 'visible', timeout: _BG_WAIT_MS },
+          );
+        } catch {
+          this._logger.warn('No background thumbnail appeared after upload');
+        }
 
         // The uploaded image should be auto-selected, but click it to be sure
         // Look for the last image in the background gallery (newly uploaded)
@@ -209,7 +229,6 @@ export class BackgroundProcedure {
             const lastImage = images[images.length - 1];
             await lastImage.click();
             this._logger.info('Selected uploaded background image');
-            await this._page.waitForTimeout(1000);
           }
         } catch {
           this._logger.debug('Could not click uploaded image - may be auto-selected');

src/bot/chatProcedure.ts

@@ -64,12 +64,85 @@ export class ChatProcedure {
     const isOpen = await this._isChatPanelOpen();
     if (isOpen) {
       this._logger.info('Chat panel opened successfully');
+      // Light-meetings ships a "simplified compose" with a collapsed
+      // placeholder + dedicated expand button. The real ckeditor textbox
+      // is rendered but Playwright considers it invisible until expanded.
+      // Expand once now so the periodic scan and send path see the
+      // canonical ckeditor surface.
+      await this._ensureComposeExpanded();
     } else {
       this._logger.warn('Chat panel could not be opened - chat send/receive will not work');
     }
     return isOpen;
   }
 
+  /**
+   * Detect Teams' "simplified compose" layout (light-meetings / new meeting
+   * chat UI) and expand it. In that layout the chat side-pane shows a
+   * compact placeholder toolbar with a `newMessageCommands-expand-compose`
+   * button; the actual `<div data-tid="ckeditor" role="textbox" contenteditable="true">`
+   * is mounted but rendered in a state where Playwright's `isVisible()` is
+   * false (the parent layer is hidden until expand is pressed). Clicking
+   * the expand button promotes the full ckeditor surface to a visible
+   * compose region anchored under `chat-pane-compose-message-footer`.
+   *
+   * Idempotent: returns true also when no expand button is present (the
+   * compose is already in its full form).
+   */
+  private async _ensureComposeExpanded(): Promise<boolean> {
+    const expandSelector = '[data-tid="newMessageCommands-expand-compose"]';
+    const expandBtn = await this._page.$(expandSelector);
+    if (!expandBtn) {
+      return true;
+    }
+    const isVisible = await expandBtn.isVisible().catch(() => false);
+    if (!isVisible) {
+      await expandBtn.dispose();
+      return true;
+    }
+
+    try {
+      await expandBtn.click();
+      this._logger.info('Compose expanded: clicked newMessageCommands-expand-compose');
+    } catch (err) {
+      this._logger.warn(`Compose expand click failed: ${err}`);
+      await expandBtn.dispose();
+      return false;
+    }
+    await expandBtn.dispose();
+
+    // Confirm the compose actually expanded: either the simplified toolbar
+    // is gone, or a ckeditor textbox is now visible (Playwright sense).
+    try {
+      await this._page.waitForFunction(
+        () => {
+          const simplified = document.querySelector(
+            '[data-tid="simplified-compose-bottom-toolbar"]'
+          ) as HTMLElement | null;
+          const simplifiedGone = !simplified || simplified.offsetHeight === 0;
+          if (simplifiedGone) return true;
+          const ck = document.querySelector(
+            '[data-tid="ckeditor"], div.ck-editor__editable[contenteditable="true"]'
+          ) as HTMLElement | null;
+          if (!ck) return false;
+          const rect = ck.getBoundingClientRect();
+          const style = window.getComputedStyle(ck);
+          return (
+            rect.width > 0 && rect.height > 0
+            && style.visibility !== 'hidden'
+            && style.display !== 'none'
+            && style.opacity !== '0'
+          );
+        },
+        { timeout: 5000 },
+      );
+      return true;
+    } catch {
+      this._logger.warn('Compose expand: state did not stabilise within 5s');
+      return false;
+    }
+  }
+
   /**
    * Check if the chat panel is currently visible by probing for known
    * UI elements (chat input, message list, or aria-pressed toggle).
@@ -109,12 +182,17 @@ export class ChatProcedure {
       // overlays, which is NOT the meeting chat.
       const inputSelectors = [
         '[data-tid="ckeditor-replyConversation"]',
+        '[data-tid="ckeditor"]',
         '[data-tid="chat-pane-compose-message-footer"] div[contenteditable="true"]',
         '[data-tid="chat-pane-compose-message-footer"] div[role="textbox"]',
         '[data-tid="message-pane-footer"] div[contenteditable="true"]',
         '[data-tid="message-pane-footer"] div[role="textbox"]',
         'div[role="textbox"][data-tid*="chat"]',
         'div[role="textbox"][data-tid*="message"]',
+        // light-meetings: a visible "expand compose" button is itself a
+        // reliable signal that the meeting chat side-pane is open.
+        '[data-tid="newMessageCommands-expand-compose"]',
+        '[data-tid="simplified-compose-bottom-toolbar"]',
       ];
       for (const sel of inputSelectors) {
         const el = document.querySelector(sel) as HTMLElement | null;
@@ -406,9 +484,11 @@ export class ChatProcedure {
           const author = _findAuthor(messageEl);
           let text = _findBody(messageEl);
 
-          // Last resort: take innerText minus the author name & metadata so we
+          // Root-cause guard: only fall back to innerText when an author
-          // at least surface something when the body wrapper changes again.
+          // was actually identified. Without this, structural fragments
-          if (!text) {
+          // (bare timestamp separators, lone time elements) leak through
+          // as "Unknown: 22:04" / "Unknown: Sending..." style entries.
+          if (!text && author !== 'Unknown') {
             const full = (messageEl.innerText || '').trim();
             if (full) {
               text = full
@@ -592,6 +672,7 @@ export class ChatProcedure {
           const opened = await this._openChatPanel();
           if (opened) {
             this._consecutiveOpenFailures = 0;
+            await this._ensureComposeExpanded();
           } else {
             this._consecutiveOpenFailures++;
             this._logger.info(
@@ -652,6 +733,8 @@ export class ChatProcedure {
 
           // Modern Teams chat bubbles have NO data-tid on the wrapper —
           // we match on Fluent UI v9 class prefixes and role="listitem".
+          // fui-ChatMessageCompact (light-meetings simplified layout) is
+          // covered by [class*="fui-ChatMessage"].
           const messageSelectors = [
             '[data-tid="chat-message"]',
             '[data-tid="chat-pane-message"]',
@@ -662,8 +745,21 @@ export class ChatProcedure {
             '[class*="fui-ChatMyMessage"]',
             '[role="listitem"]',
           ];
-          const target = container || document.body;
+          // If the resolved container is collapsed (light-meetings:
-          const candidates = target.querySelectorAll(messageSelectors.join(', '));
+          // message-pane-layout often has h=0 because the chat bubbles are
+          // rendered in a sibling overlay branch, not inside the layout),
+          // a scoped query would return 0 candidates and we'd miss every
+          // visible chat. Promote target to document.body in that case.
+          let target: HTMLElement | Document = container || document.body;
+          let candidates: NodeListOf<Element> = target.querySelectorAll(messageSelectors.join(', '));
+          if (
+            (!candidates.length && container && container.offsetHeight === 0)
+            || (!candidates.length && document.querySelectorAll('[class*="fui-ChatMessage"]').length > 0)
+          ) {
+            target = document;
+            candidates = document.querySelectorAll(messageSelectors.join(', '));
+            containerSrc = `${containerSrc} -> fallback:document (container collapsed or messages in sibling branch)`;
+          }
 
           const findAuthor = (root: HTMLElement, fallbackEl: HTMLElement): string => {
             const sels = [
@@ -698,7 +794,12 @@ export class ChatProcedure {
             const messageEl = (el.closest?.('[data-tid*="chat-message"], [data-tid*="message-list-item"], [class*="fui-ChatMessage"], [class*="fui-ChatMyMessage"]') as HTMLElement | null) || el;
             const author = findAuthor(messageEl, el);
             let text = findBody(messageEl, el);
-            if (!text) {
+            // Root-cause guard: if no structured body was found AND no
+            // author was identified, the element is not a chat message —
+            // skip it. Without this, the innerText fallback below would
+            // emit bare timestamp separators / structural fragments as
+            // "Unknown: 22:04" / "Unknown: Sending..." etc.
+            if (!text && author !== 'Unknown') {
               const full = (messageEl.innerText || '').trim();
               if (full) {
                 text = full
@@ -860,6 +961,11 @@ export class ChatProcedure {
       return false;
     }
 
+    // Light-meetings ships the simplified compose by default and reverts
+    // to it after every panel re-open. Expand once per send so the
+    // ckeditor textbox is the active, Playwright-visible surface.
+    await this._ensureComposeExpanded();
+
     // Note: order matters — most specific selectors first; the `chat-pane-compose-message-footer`
     // ancestor lookup is needed because Teams Fluent UI v9 scopes the contenteditable inside it.
     // Modern Teams meeting chat uses CKEditor 5 (`.ck-editor__editable`) and its compose root
@@ -867,6 +973,9 @@ export class ChatProcedure {
     const inputSelectors = [
       // Classic data-tid selectors (older Teams builds)
       '[data-tid="ckeditor-replyConversation"]',
+      // Light-meetings new meeting chat composer (post-expand): the
+      // contenteditable surface has data-tid="ckeditor" directly.
+      '[data-tid="ckeditor"]',
       '[data-tid="chat-pane-compose-message-footer"] div[contenteditable="true"]',
       '[data-tid="chat-pane-compose-message-footer"] div[role="textbox"]',
       '[data-tid="message-pane-footer"] div[contenteditable="true"]',

src/bot/joinProcedure.ts

@@ -13,6 +13,8 @@ import { resolveLaunchUrl, getMeetingLaunchUrl } from './meetingUrlParser';
  * NOTE: The bot always joins as an anonymous guest with the configured bot name.
  * Authentication is disabled. See Teamsbot-Auth-Join-Learnings.md.
  */
+const _CONDITION_WAIT_MS = 10000;
+
 export class JoinProcedure {
   private _page: Page;
   private _logger: Logger;
@@ -24,15 +26,80 @@ export class JoinProcedure {
     this._botName = botName;
   }
 
+  private async _waitForPreJoinAfterLauncher(): Promise<void> {
+    const preJoin =
+      'input[data-tid="prejoin-display-name-input"], #prejoin-join-button, button[data-tid="prejoin-join-button"]';
+    try {
+      await this._page.waitForSelector(preJoin, { state: 'visible', timeout: _CONDITION_WAIT_MS });
+    } catch {
+      this._logger.warn('Pre-join UI not detected after launcher (continuing)');
+    }
+  }
+
+  private async _waitForNoAudioVideoModalGone(): Promise<void> {
+    try {
+      await this._page.waitForFunction(
+        () => {
+          const modal = document.querySelector('[role="dialog"]');
+          if (!modal) return true;
+          const t = modal.textContent || '';
+          const isNoAv =
+            t.includes('audio or video') ||
+            t.includes('Audio oder Video') ||
+            t.includes('without audio');
+          return !isNoAv;
+        },
+        { timeout: _CONDITION_WAIT_MS },
+      );
+    } catch {
+      this._logger.warn('No-audio/video modal may still be visible (continuing)');
+    }
+  }
+
+  private async _waitForPermissionOverlayCleared(): Promise<void> {
+    try {
+      await this._page.waitForFunction(
+        () => {
+          const dialogs = Array.from(document.querySelectorAll('[role="dialog"]'));
+          return !dialogs.some(d => {
+            const t = d.textContent || '';
+            return (
+              (t.includes('manage') || t.includes('Manage') || t.includes('display') || t.includes('window')) &&
+              (t.includes('Allow') || t.includes('Erlauben') || t.includes('Zulassen'))
+            );
+          });
+        },
+        { timeout: _CONDITION_WAIT_MS },
+      );
+    } catch {
+      this._logger.warn('Permission overlay may still be visible (continuing)');
+    }
+  }
+
+  private async _waitForLeaveUiSettled(): Promise<void> {
+    try {
+      await this._page.waitForFunction(
+        () =>
+          !document.querySelector('button[id="hangup-button"]') &&
+          !document.querySelector('[data-tid="hangup-button"]'),
+        { timeout: _CONDITION_WAIT_MS },
+      );
+    } catch {
+      this._logger.warn('Hangup control still present or leave transition slow (continuing)');
+    }
+  }
+
   /**
    * Navigate to the meeting URL and handle the launcher dialog.
    *
-   * Teams meeting URLs redirect through several hops. We resolve the redirect
+   * Teams meeting URLs redirect through several hops. `resolveLaunchUrl()`
-   * and add params (suppressPrompt, msLaunch=false, anon=true) to skip the
+   * follows them server-side and adds suppressPrompt params to the
-   * "Open in Teams app?" native dialog. Then we click "Continue on this browser".
+   * RESOLVED launcher URL so the browser does not show the native
+   * "Open Microsoft Teams?" protocol-handler modal. It also strips
+   * `anon=true` from the inner URL (Teams' server bakes this in for
+   * cookie-less fetch requests; we don't want it).
    */
   async startMeetingLauncherFlow(meetingUrl: string): Promise<void> {
-    // Resolve the meeting URL redirect and add suppressPrompt params
     let launchUrl: string;
     try {
       launchUrl = await resolveLaunchUrl(meetingUrl);
@@ -49,7 +116,6 @@ export class JoinProcedure {
       timeout: config.timeouts.pageLoad,
     });
 
-    // Handle "Continue on this browser" button
     await this._handleLauncherDialog();
   }
 
@@ -63,7 +129,7 @@ export class JoinProcedure {
       if (launcherButton) {
         this._logger.info('Launcher dialog found, clicking "Continue on this browser"');
         await launcherButton.click();
-        await this._page.waitForTimeout(2000);
+        await this._waitForPreJoinAfterLauncher();
       }
     } catch {
       // No launcher - that's fine
@@ -86,6 +152,7 @@ export class JoinProcedure {
       this._logger.info(`Found launcher button: ${primarySelector}`);
       await this._page.click(primarySelector);
       this._logger.info('Clicked "Continue on this browser" button');
+      await this._waitForPreJoinAfterLauncher();
       return;
     } catch {
       this._logger.info('Primary launcher selector not found, trying fallbacks...');
@@ -106,7 +173,7 @@ export class JoinProcedure {
         if (element) {
           this._logger.info(`Found launcher button (fallback): ${selector}`);
           await element.click();
-          await this._page.waitForTimeout(2000);
+          await this._waitForPreJoinAfterLauncher();
           return;
         }
       } catch {
@@ -210,7 +277,6 @@ export class JoinProcedure {
         if (button) {
           await button.click();
           this._logger.info(`Clicked "Join now" button (attempt ${attempt}/${maxRetries})`);
-          await this._page.waitForTimeout(2000);
           await this._dismissNoAudioVideoModal();
           return;
         }
@@ -226,7 +292,6 @@ export class JoinProcedure {
           if (button && await button.isVisible()) {
             await button.click();
             this._logger.info(`Clicked join button fallback: ${selector} (attempt ${attempt}/${maxRetries})`);
-            await this._page.waitForTimeout(2000);
             await this._dismissNoAudioVideoModal();
             return;
           }
@@ -274,7 +339,7 @@ export class JoinProcedure {
         if (button) {
           await button.click();
           this._logger.info(`Dismissed no-audio modal: ${selector}`);
-          await this._page.waitForTimeout(1000);
+          await this._waitForNoAudioVideoModalGone();
           return;
         }
       } catch {
@@ -306,7 +371,7 @@ export class JoinProcedure {
           if (text.includes('manage') || text.includes('Manage') || text.includes('display') || text.includes('window')) {
             await button.click();
             this._logger.info(`Dismissed browser permission modal: ${selector}`);
-            await this._page.waitForTimeout(1000);
+            await this._waitForPermissionOverlayCleared();
             return;
           }
         }
@@ -326,45 +391,42 @@ export class JoinProcedure {
   async isInMeetingLobby(options: { waitForSeconds?: number } = {}): Promise<boolean> {
     const timeout = (options.waitForSeconds || 5) * 1000;
 
-    // Check for any lobby text variant using page.evaluate for reliability
+    const lobbySelectors = [
-    try {
+      '[data-tid="lobby-screen"]',
-      const inLobby = await this._page.evaluate(() => {
+      '[data-tid="waiting-screen"]',
-        const bodyText = document.body?.innerText || '';
+      '[data-tid="lobby-waiting-screen"]',
-        const lobbyIndicators = [
+      '[data-tid="lobby-container"]',
-          'Someone will let you in shortly',
+      '[data-cid="lobby-screen"]',
-          'Someone will let you in when the meeting starts',
+      '[data-cid="waiting-screen"]',
-          'will let you in',
+      '#lobby-container',
-          'waiting for someone to let you in',
+      '[id*="lobby"]',
-          'Someone in the meeting should let you in',
     ];
-        return lobbyIndicators.some(text => bodyText.includes(text));
-      });
-      if (inLobby) return true;
-    } catch {
-      // Page may not be ready
-    }
 
-    // Primary: text-based check with waitFor (waits up to timeout)
     try {
-      await this._page.getByText('will let you in').waitFor({
+      await this._page.waitForSelector(lobbySelectors.join(', '), {
         timeout,
         state: 'visible',
       });
       return true;
     } catch {
-      // Not found within timeout
+      // No structural lobby element found
     }
 
-    // Fallback: data-tid selectors
+    // Fallback: check for the pre-join/lobby state via page structure —
+    // the lobby has no call-control bar but does have a waiting spinner or icon
     try {
-      await this._page.waitForSelector('[data-tid="lobby-screen"], [data-tid="waiting-screen"]', {
+      const hasLobbyStructure = await this._page.evaluate(() => {
-        timeout: 1000,
+        const el = document.querySelector(
-        state: 'visible',
+          '[class*="lobby" i], [class*="waiting-room" i], [class*="waitingScreen" i]'
+        );
+        return !!el;
       });
-      return true;
+      if (hasLobbyStructure) return true;
     } catch {
-      return false;
+      // Page may not be ready
     }
+
+    return false;
   }
 
   /**
@@ -378,25 +440,25 @@ export class JoinProcedure {
   async isInMeeting(options: { waitForSeconds?: number } = {}): Promise<boolean> {
     const timeout = (options.waitForSeconds || 5) * 1000;
 
-    // Primary selectors - known meeting UI elements
     const inMeetingSelectors = [
+      // Button IDs (Teams 2025+ redesign)
       'button[id="hangup-button"]',
+      'button[id="microphone-button"]',
       'button[id="callingButtons-showMoreBtn"]',
-      // Fallbacks with data-tid (older Teams versions)
+      'button[id="video-button"]',
+      // data-tid attributes
       '[data-tid="hangup-button"]',
       '[data-tid="call-composite"]',
-      'button[aria-label*="Leave"]',
       '[data-tid="callingButtons-showMoreBtn"]',
-      // Teams v2 (2025+) additional selectors
       '[data-tid="call-controls"]',
       '[data-tid="meeting-composite"]',
       'div[data-tid="video-gallery"]',
-      'button[aria-label*="Hang up"]',
-      'button[aria-label*="leave" i]',
-      // Mic/Camera toggle buttons are only visible in an active call
-      'button[id="microphone-button"]',
-      'button[data-tid="toggle-mute"]',
       '[data-tid="microphone-button"]',
+      '[data-tid="toggle-mute"]',
+      // data-cid attributes (light-meetings / anonymous join)
+      '[data-cid="ts-hangup-btn"]',
+      '[data-cid="calling-hangup-button"]',
+      '[data-cid="calling-unified-bar"]',
     ];
 
     try {
@@ -406,28 +468,31 @@ export class JoinProcedure {
       });
       return true;
     } catch {
-      // Selector-based detection failed, try DOM evaluation as fallback
+      // Primary selector-based detection failed
     }
 
-    // Fallback: evaluate the page for meeting indicators
+    // Fallback: structural DOM check for call control containers
     try {
       const inMeeting = await this._page.evaluate(() => {
-        // Check for call-related aria roles and meeting elements
+        const callBar = document.querySelector(
-        const bodyText = document.body?.innerText || '';
+          '[class*="calling-controls" i], [class*="call-controls" i], ' +
-        const meetingIndicators = [
+          '[class*="controlBar" i], [class*="unified-bar" i]'
-          'Leave',         // Leave button text
+        );
-          'Mute',          // Mic mute button
+        if (callBar) return true;
-          'Unmute',        // Mic unmute button
+        // Check for hangup/mic buttons by role+structure (language-independent)
-          'Turn off camera', // Camera control
+        const buttons = Array.from(document.querySelectorAll('button[id]'));
-          'Turn on camera',
+        let callButtons = 0;
-          'Share',         // Share screen
+        for (let i = 0; i < buttons.length; i++) {
-        ];
+          const id = buttons[i].id.toLowerCase();
-        const found = meetingIndicators.filter(ind => bodyText.includes(ind));
+          if (id.includes('hangup') || id.includes('microphone') ||
-        // Need at least 2 meeting indicators to confirm we're in a meeting
+              id.includes('video-button') || id.includes('mute')) {
-        return found.length >= 2;
+            callButtons++;
+          }
+        }
+        return callButtons >= 2;
       });
       if (inMeeting) {
-        this._logger.info('Detected meeting via DOM text analysis (fallback)');
+        this._logger.info('Detected meeting via structural DOM analysis (fallback)');
         return true;
       }
     } catch {
@@ -451,7 +516,7 @@ export class JoinProcedure {
       await this._page.waitForSelector(primarySelector, { timeout: 5000 });
       await this._page.click(primarySelector);
       this._logger.info('Clicked leave button');
-      await this._page.waitForTimeout(2000);
+      await this._waitForLeaveUiSettled();
       return;
     } catch {
       this._logger.info('Primary leave selector not found, trying fallbacks...');
@@ -471,7 +536,7 @@ export class JoinProcedure {
         if (button) {
           await button.click();
           this._logger.info(`Clicked leave button (fallback: ${selector})`);
-          await this._page.waitForTimeout(2000);
+          await this._waitForLeaveUiSettled();
           return;
         }
       } catch {

src/bot/orchestrator.ts

@@ -132,7 +132,8 @@ export class BotOrchestrator {
   /**
    * Teams launcher commonly embeds meeting params in hash-routed paths:
    *   /_#/meet/<id>?p=...&anon=true
-   * In this shape, "anon" is in the hash query (not URL.search).
+   * In this shape, "anon" is in the hash query (not URL.search). The auth
+   * path must strip it so the meeting client uses the signed-in identity.
    */
   private _stripAnonFromInnerMeetingUrl(innerUrlPath: string): string {
     try {
@@ -352,9 +353,10 @@ export class BotOrchestrator {
     // CRITICAL: The suppress params (msLaunch, suppressPrompt, directDl) must
     // be on the LAUNCHER URL itself, NOT inside the encoded meeting URL parameter.
     // resolveLaunchUrl follows redirects first (meeting URL → launcher URL),
-    // then adds the params to the RESOLVED launcher URL. getMeetingLaunchUrl
+    // then adds the params to the RESOLVED launcher URL. resolveLaunchUrl
-    // adds params to the raw meeting URL — they end up encoded inside the
+    // also sets anon=true (correct default for the anon path); for the
-    // launcher's url= parameter and have no effect on the launcher behavior.
+    // authenticated path we must explicitly strip it so Teams uses the
+    // signed-in identity instead of routing as a guest.
     let launchUrl: string;
     try {
       launchUrl = await resolveLaunchUrl(this._meetingUrl);
@@ -362,22 +364,16 @@ export class BotOrchestrator {
       this._logger.warn(`Could not resolve launch URL, using fallback: ${error}`);
       launchUrl = getMeetingLaunchUrl(this._meetingUrl);
     }
-    // Remove anon=true since the user is authenticated
     try {
       const urlObj = new URL(launchUrl);
       urlObj.searchParams.delete('anon');
-      // Some Teams launcher URLs carry the real meeting path in an encoded "url" param.
-      // In auth mode that inner URL can still contain anon=true, which forces guest-like behavior.
       const encodedInnerUrl = urlObj.searchParams.get('url');
       if (encodedInnerUrl) {
-        const innerPath = this._stripAnonFromInnerMeetingUrl(encodedInnerUrl);
+        urlObj.searchParams.set('url', this._stripAnonFromInnerMeetingUrl(encodedInnerUrl));
-        urlObj.searchParams.set('url', innerPath);
       }
       launchUrl = urlObj.toString();
     } catch { /* keep as-is */ }
-
     this._logger.info(`STEP 4: navigating to launch URL: ${launchUrl.substring(0, 120)}...`);
-    this._logger.info(`STEP 4: launch URL contains anon=true? ${launchUrl.includes('anon=true')}`);
     await this._page!.goto(launchUrl, {
       waitUntil: 'domcontentloaded',
       timeout: 30000,
@@ -1031,6 +1027,13 @@ export class BotOrchestrator {
   /**
    * Launch the browser and create a new page.
    * @param authMode - If true, use headful + minimal args (Chromium Minimal, proven to work for auth)
+   *
+   * NOTE: anon and auth use DIFFERENT chromium args on purpose. The anon path
+   * relies on `--disable-web-security` + `--disable-features=IsolateOrigins,site-per-process`
+   * to make Teams' "light-meetings" guest bundle behave correctly across
+   * cross-origin iframes. Unifying the args breaks anon: Teams sends the
+   * bot to the lobby and the lobby→meeting WebRTC renegotiation crashes
+   * (`rejectMediaDescriptionsUpdateAsync`). Keep these flag sets separate.
    */
   private async _launchBrowser(authMode: boolean = false): Promise<void> {
     this._logger.info(`Launching browser (authMode=${authMode})...`);
@@ -1145,7 +1148,7 @@ export class BotOrchestrator {
           timestamp: entry.timestamp,
           isFinal: true,
         });
-      }
+      },
     );
 
     // Inject audio getUserMedia override BEFORE any navigation
@@ -1225,49 +1228,51 @@ export class BotOrchestrator {
 
   /**
    * Wait for the bot to be admitted from the lobby.
+   * Bails out immediately if the page is closed (crash/disconnect) so we
+   * don't report a misleading "in_lobby" state for the next 2 minutes.
    */
   private async _waitForMeetingAdmission(): Promise<void> {
     const startTime = Date.now();
     const timeout = config.timeouts.lobbyWait;
-    let consecutiveNoSignal = 0;
+    let loggedLobby = false;
-    const maxNoSignal = 5; // Allow several cycles with no lobby/meeting signal before giving up
+    let wasInLobby = false;
 
     while (Date.now() - startTime < timeout) {
-      // Check if we're in the meeting
+      if (!this._page || this._page.isClosed()) {
+        throw new Error('Page closed while waiting for meeting admission');
+      }
+
       const inMeeting = await this._joinProcedure!.isInMeeting({ waitForSeconds: 5 });
       if (inMeeting) {
+        if (wasInLobby) {
+          this._logger.info('Admitted from lobby into meeting');
+        }
         return;
       }
 
-      // Check if still in lobby
       const inLobby = await this._joinProcedure!.isInMeetingLobby({ waitForSeconds: 2 });
+
       if (inLobby) {
-        consecutiveNoSignal = 0;
+        wasInLobby = true;
-        this._logger.info('Still waiting in lobby...');
+        if (!loggedLobby) {
+          loggedLobby = true;
+          this._setState('in_lobby');
+          this._logger.info('Bot is in lobby, waiting for admission...');
+          await this._takeScreenshot('in-lobby');
+        }
         continue;
       }
 
-      // Neither in meeting nor in lobby — this can happen legitimately:
+      if (wasInLobby) {
-      // - Authenticated users skip lobby, but meeting UI takes seconds to load
+        // Lobby disappeared but isInMeeting not yet true — Teams is
-      // - Page is transitioning between states
+        // transitioning (WebRTC renegotiation, UI rendering). Keep
-      // Only give up after several consecutive cycles with no signal
+        // polling; the meeting controls will appear shortly.
-      consecutiveNoSignal++;
+        this._logger.info('Lobby gone, waiting for meeting UI to render...');
-      const currentUrl = this._page?.url() || 'unknown';
+        await this._takeScreenshot('lobby-transition');
-      this._logger.info(`No lobby/meeting signal detected (attempt ${consecutiveNoSignal}/${maxNoSignal}), URL: ${currentUrl}`);
-
-      if (consecutiveNoSignal >= maxNoSignal) {
-        // Take a screenshot and log page content for debugging before giving up
-        await this._takeScreenshot('no-meeting-signal');
-        try {
-          const bodySnippet = await this._page?.evaluate(() =>
-            document.body?.innerText?.substring(0, 500) || '(empty)'
-          );
-          this._logger.warn(`Page content before giving up: ${bodySnippet}`);
-        } catch { /* ignore */ }
-        throw new Error('Bot was removed from lobby or meeting ended');
       }
     }
 
+    await this._takeScreenshot('lobby-timeout');
     throw new Error('Timeout waiting to be admitted from lobby');
   }
 

src/bot/teamsActionsService.ts

@@ -1,6 +1,8 @@
 import { Page } from 'playwright';
 import { Logger } from 'winston';
 
+const _ACTION_WAIT_MS = 10000;
+
 /**
  * Service center for all Teams meeting UI actions.
  *
@@ -43,7 +45,12 @@ export class TeamsActionsService {
 
         await captionsBtn.click();
         this._logger.info(`TeamsActions: Transcript toggled ${enable ? 'ON' : 'OFF'}`);
-        await this._page.waitForTimeout(1000);
+        try {
+          await this._page.waitForFunction(
+            () => !document.querySelector('[role="menu"]'),
+            { timeout: 5000 },
+          );
+        } catch { /* menu may already be gone */ }
         return true;
       }
 
@@ -88,9 +95,13 @@ export class TeamsActionsService {
       }
 
       await input.click();
-      await this._page.waitForTimeout(200);
+      try {
+        await this._page.waitForFunction(
+          () => document.activeElement?.matches('[contenteditable], [role="textbox"], input, textarea'),
+          { timeout: 3000 },
+        );
+      } catch { /* proceed even if focus check times out */ }
       await this._page.keyboard.type(text, { delay: 10 });
-      await this._page.waitForTimeout(200);
       await this._page.keyboard.press('Enter');
 
       this._logger.info('TeamsActions: Chat message sent');
@@ -190,7 +201,6 @@ export class TeamsActionsService {
 
     await btn.click();
     this._logger.info(`TeamsActions: ${name} toggled ${enable ? 'ON' : 'OFF'}`);
-    await this._page.waitForTimeout(500);
     return true;
   }
 
@@ -208,7 +218,11 @@ export class TeamsActionsService {
         const button = await this._page.$(selector);
         if (button) {
           await button.click();
-          await this._page.waitForTimeout(1000);
+          try {
+            await this._page.waitForSelector('[role="menu"], [role="menubar"]', { state: 'visible', timeout: _ACTION_WAIT_MS });
+          } catch {
+            this._logger.warn('TeamsActions: More menu did not appear');
+          }
           return true;
         }
       } catch {
@@ -237,7 +251,11 @@ export class TeamsActionsService {
         const item = await this._page.$(sel);
         if (item) {
           await item.click();
-          await this._page.waitForTimeout(1500);
+          try {
+            await this._page.waitForSelector('#closed-captions-button', { state: 'visible', timeout: _ACTION_WAIT_MS });
+          } catch {
+            this._logger.warn('TeamsActions: Captions button not visible in submenu');
+          }
           btn = await this._page.$('#closed-captions-button');
           if (btn) return btn;
           break;
@@ -276,7 +294,14 @@ export class TeamsActionsService {
         if (button) {
           await button.click();
           this._logger.info(`TeamsActions: Opened chat panel: ${selector}`);
-          await this._page.waitForTimeout(1000);
+          try {
+            await this._page.waitForSelector(
+              '[data-tid="ckeditor-replyConversation"], div[role="textbox"][data-tid*="chat"]',
+              { state: 'visible', timeout: _ACTION_WAIT_MS },
+            );
+          } catch {
+            this._logger.warn('TeamsActions: Chat panel input not visible after opening');
+          }
           return;
         }
       } catch {