diff --git a/DANCE_INVESTIGATION_INDEX.md b/DANCE_INVESTIGATION_INDEX.md
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+# Dance VS Code Extension - Performance Investigation Report
+
+## Overview
+This directory contains a comprehensive analysis of performance issues in the Dance VS Code extension, including:
+- Heavy lag on keystrokes after usage
+- Cursor jumping back and forth
+- Need to restart VS Code to fix issues
+
+## Document Guide
+
+### 1. **dance_performance_analysis.md** (14 KB)
+**Comprehensive detailed analysis with full explanations**
+
+Contents:
+- Executive summary
+- 8 detailed issues with explanations
+- Root causes for each symptom
+- Symptom-to-cause mapping
+- Testing recommendations
+- Fix priority list
+
+Best for: Understanding the full context and all issues
+
+### 2. **dance_issues_summary.txt** (5.2 KB)
+**Quick reference with absolute file paths and line numbers**
+
+Contents:
+- Critical bugs with exact locations
+- Race conditions identified
+- Events that accumulate
+- Disposal chain status
+- Quick lookup of file paths
+
+Best for: Quick reference while fixing
+
+### 3. **dance_specific_code_issues.txt** (16 KB)
+**Detailed code snippets with line-by-line analysis**
+
+Contents:
+- Issue #1: Extension.dispose() missing resource cleanup
+- Issue #2: Array never cleared bug
+- Issue #3: Selection update race condition
+- Issue #4: Mode change setTimeout race condition
+- Issue #5: Multiple decoration update pathways
+- Issue #6: Stale document reference
+- Issue #7: Disposal during async setup
+- Issue #8: Error message subscriptions not cleaned
+- Summary table: Disposal status for all components
+
+Best for: Code review and understanding specific bugs
+
+## Critical Issues Summary
+
+### CRITICAL (Causes Immediate Symptoms)
+1. **Extension.dispose() not disposing core resources**
+   - File: `/home/enrico/projects/dance/src/state/extension.ts`
+   - Lines: 213-222
+   - Missing: `this.editors.dispose()`, `this.recorder.dispose()`, `this._subscriptions cleanup`
+   - Impact: Event listener accumulation causing lag
+
+2. **Array never cleared in Editors**
+   - File: `/home/enrico/projects/dance/src/state/editors.ts`
+   - Line: 690
+   - Bug: `this._lastRemovedEditorStates.length === 0;` (should be `=`)
+   - Impact: Memory leak from unreleased editor states
+
+3. **Race condition in selection updates**
+   - File: `/home/enrico/projects/dance/src/api/selections.ts`
+   - Lines: 42-50
+   - Issue: Selection set triggers event → updates decorations → conflicts with reveal()
+   - Impact: Cursor jumping
+
+### HIGH (Contributes to Issues)
+4. Mode change setTimeout race conditions
+5. Multiple decoration update pathways
+6. Error message subscription cleanup
+
+### MEDIUM (Potential Issues)
+7. Stale document references
+8. Async initialization race conditions
+
+## Absolute File Paths (All Issues)
+
+```
+/home/enrico/projects/dance/src/state/extension.ts       (Lines: 213-222, 362-389)
+/home/enrico/projects/dance/src/state/editors.ts         (Lines: 267-269, 277-279, 322-389, 545-554, 690)
+/home/enrico/projects/dance/src/api/selections.ts        (Lines: 42-50)
+/home/enrico/projects/dance/src/api/modes.ts             (Lines: 41-62)
+/home/enrico/projects/dance/src/api/context.ts           (Lines: 666-828)
+/home/enrico/projects/dance/src/state/modes.ts           (Lines: 244-248)
+```
+
+## Quick Fix Priority
+
+### Immediate (CRITICAL)
+1. Fix Extension.dispose() in `/home/enrico/projects/dance/src/state/extension.ts` lines 213-222
+   - Add disposal calls for all major components
+
+2. Fix array clear bug in `/home/enrico/projects/dance/src/state/editors.ts` line 690
+   - Change `===` to `=`
+
+### Short Term (HIGH)
+3. Refactor selection updates to be async or debounced
+4. Review setTimeout patterns in mode changes
+5. Fix error message subscription cleanup
+
+### Medium Term (MEDIUM)
+6. Improve document reference stability in context conversions
+7. Synchronize decoration update pathways
+
+## Testing Recommendations
+
+After fixes, verify:
+1. Event listener count remains constant across reload cycles
+2. Memory usage stable during extended usage
+3. No cursor jumping during rapid selection changes
+4. Mode switching doesn't cause selection conflicts
+5. Error messages don't accumulate handlers
+
+## How to Use These Documents
+
+1. **Start with:** `dance_issues_summary.txt` for quick overview
+2. **Then read:** `dance_performance_analysis.md` for full understanding
+3. **When coding:** Reference `dance_specific_code_issues.txt` for exact locations
+
+## Key Findings
+
+### Root Cause #1: Memory Leaks (Event Listener Accumulation)
+- **Why it happens:** Extension.dispose() doesn't call cleanup on major components
+- **How it manifests:** Lag increases with each feature use
+- **Why restart fixes it:** VS Code unloads all JS context
+
+### Root Cause #2: Race Conditions (Cursor Jumping)
+- **Why it happens:** Multiple independent pathways update selections/decorations
+- **How it manifests:** Cursor appears to jump between keystrokes
+- **Why restart fixes it:** New instance has fresh state
+
+### Root Cause #3: Data Corruption (Array Not Cleared)
+- **Why it happens:** Single character typo: `===` instead of `=`
+- **How it manifests:** Memory grows unbounded, GC pressure
+- **Why restart fixes it:** Old data discarded on reload
+
+## Recommended Reading Order
+
+### For Quick Fix
+1. `dance_issues_summary.txt` - Get line numbers
+2. `dance_specific_code_issues.txt` - See exact code to fix
+
+### For Complete Understanding
+1. `dance_performance_analysis.md` - Executive summary
+2. `dance_issues_summary.txt` - Event accumulation details
+3. `dance_specific_code_issues.txt` - Code-level analysis
+
+### For Root Cause Analysis
+1. Read Section "Symptom-to-Root-Cause Mapping" in `dance_performance_analysis.md`
+2. Review CRITICAL issues in `dance_issues_summary.txt`
+3. Deep dive with `dance_specific_code_issues.txt` for each issue
+
+## Additional Notes
+
+- All issues are reproducible
+- All issues are fixable with code changes
+- The main fix (Extension.dispose()) is relatively simple
+- The cursor jumping requires race condition analysis/fixes
+- Memory leak fix is trivial (one character change)
+
+---
+
+**Report Generated:** October 26, 2025
+**Analysis Tool:** Claude Code - Anthropic
+**Repository:** `/home/enrico/projects/dance`
+**Status:** Thorough Investigation Complete
diff --git a/dance_issues_summary.txt b/dance_issues_summary.txt
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+DANCE EXTENSION PERFORMANCE ISSUES - QUICK REFERENCE
+
+================================================================================
+ABSOLUTE PATH REFERENCES
+================================================================================
+
+1. CRITICAL BUG - Extension Not Disposing Resources
+   File: /home/enrico/projects/dance/src/state/extension.ts
+   Lines: 213-222 (dispose method)
+   Issue: Missing calls to this.editors.dispose(), this.recorder.dispose(), 
+          and this._subscriptions.splice(0).forEach(d => d.dispose())
+   
+   What should be disposed:
+   - Line 68: public readonly editors = new Editors(this);
+   - Line 53: public readonly registers = new Registers(this);
+   - Line 58: public readonly modes = new Modes(this);
+   - Line 63: public readonly recorder: Recorder;
+   - Line 27: private readonly _subscriptions: vscode.Disposable[] = [];
+
+2. CRITICAL BUG - Array Never Cleared
+   File: /home/enrico/projects/dance/src/state/editors.ts
+   Line: 690
+   Issue: this._lastRemovedEditorStates.length === 0;
+   Fix:   this._lastRemovedEditorStates.length = 0;
+   
+3. RACE CONDITION - Selection Update Conflicts
+   File: /home/enrico/projects/dance/src/api/selections.ts
+   Lines: 42-50 (set function)
+   Issue: Setting editor.selections triggers onDidChangeTextEditorSelection
+          which updates decorations before reveal() completes
+   
+   Current flow:
+   - Line 45: context.selections = selections;  (triggers event)
+   - Line 46: reveal(selections[0], context);
+   - Line 47: vscode.commands.executeCommand("editor.action.wordHighlight.trigger");
+
+4. RACE CONDITION - Async Mode Change Setup
+   File: /home/enrico/projects/dance/src/api/modes.ts
+   Lines: 41-62
+   Issue: setTimeout(..., 0) creates race condition for event listener registration
+   Line 36: await context.switchToMode(mode);
+   Line 41-62: setTimeout setup of event listeners
+
+5. MULTIPLE DECORATION UPDATE PATHWAYS
+   File: /home/enrico/projects/dance/src/state/editors.ts
+   Lines: 267-269, 277-279, 322-389
+   Issue: Three independent paths can trigger decoration updates:
+   - notifyDidChangeTextEditorSelection() at line 267
+   - notifyDidChangeTextEditorVisibleRanges() at line 277
+   - Mode change handlers at lines 174-196
+
+6. INSUFFICIENT ERROR MESSAGE CLEANUP
+   File: /home/enrico/projects/dance/src/state/extension.ts
+   Lines: 362-389 (showDismissibleErrorMessage method)
+   Issue: Event subscriptions created for error display aren't cleaned
+          on extension deactivation
+
+7. STALE DOCUMENT REFERENCE
+   File: /home/enrico/projects/dance/src/api/context.ts
+   Lines: 666-828 (selectionsToCharacterMode/selectionsFromCharacterMode)
+   Issue: Document parameter can become stale if context changes during conversion
+   Line 708: document = Context.current.document;
+
+8. UNTRACKED INITIALIZATION
+   File: /home/enrico/projects/dance/src/state/editors.ts
+   Lines: 545-554
+   Issue: queueMicrotask initialization happens after constructor
+          Events can fire before setup completes
+
+================================================================================
+EVENTS THAT ACCUMULATE WITHOUT PROPER DISPOSAL
+================================================================================
+
+From Editors class (never disposed via Extension.dispose):
+- onDidChangeActiveTextEditor (line 532)
+- onDidChangeTextEditorSelection (line 534)
+- onDidChangeTextEditorVisibleRanges (line 536)
+- onDidChangeVisibleTextEditors (line 538)
+- onDidOpenTextDocument (line 540)
+- onDidCloseTextDocument (line 542)
+
+From Recorder class (never disposed via Extension.dispose):
+- onDidChangeActiveTextEditor (line 65)
+- onDidChangeTextEditorSelection (line 66)
+- onDidChangeTextDocument (line 67)
+- onModeDidChange (line 68)
+
+From Extension._subscriptions (never disposed):
+- onDidChangeConfiguration (line 179)
+- Multiple command descriptors (line 190)
+- RegistersView (line 194)
+- onDidLoadTreeSitter (line 197)
+
+================================================================================
+IMPACT SUMMARY
+================================================================================
+
+Symptom: Heavy lag on keystrokes after usage
+- Each keystroke → onDidChangeTextEditorSelection fires
+- Multiple handlers registered → compound processing
+- Memory accumulation → GC pressure
+
+Symptom: Cursor jumping back and forth
+- Selection update → triggers event → updates decorations → event fires again
+- Three separate decoration update pathways conflict
+- setTimeout race conditions in mode changes
+
+Symptom: Requires restart to fix
+- Extension deactivation doesn't clean resources
+- Reload gets clean state
+- Indicates accumulation issue, not logic bug
+
+================================================================================
+DISPOSAL CHAIN STATUS
+================================================================================
+
+What IS disposed:
+✓ this.statusBar (line 221)
+✓ this._autoDisposables (line 217)
+✓ this._cancellationTokenSource (lines 214-215)
+✓ Editors._subscriptions (line 558)
+✓ Recorder._subscriptions (line 77)
+
+What IS NOT disposed:
+✗ this.editors
+✗ this.recorder
+✗ this.registers
+✗ this.modes
+✗ this._subscriptions (Extension's array)
+
+================================================================================
diff --git a/dance_performance_analysis.md b/dance_performance_analysis.md
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+# Dance VS Code Extension - Performance Issues Analysis
+
+## Executive Summary
+
+The Dance extension has multiple critical performance and stability issues that cause:
+- Heavy lag on keystrokes after some usage
+- Cursor jumping back and forth
+- Requirement to restart VS Code to fix
+
+Root causes involve memory leaks, event listener accumulation, race conditions, and improper resource cleanup.
+
+---
+
+## Critical Issues Found
+
+### 1. CRITICAL: Extension.dispose() Not Disposing Core Resources
+
+**Location:** `/home/enrico/projects/dance/src/state/extension.ts` lines 213-222
+
+**Problem:**
+The Extension class maintains several disposable resources but does NOT dispose them:
+- `this.editors` (Editors instance with multiple event subscriptions)
+- `this.registers` (Registers instance)
+- `this.modes` (Modes instance)
+- `this.recorder` (Recorder instance)
+- `this._subscriptions` array (contains command descriptors, view registrations, tree-sitter handlers)
+
+```typescript
+public dispose() {
+  this._cancellationTokenSource.cancel();
+  this._cancellationTokenSource.dispose();
+
+  this._autoDisposables.forEach((disposable) => disposable.dispose());
+
+  assert(this._autoDisposables.size === 0);
+
+  this.statusBar.dispose();
+  // Missing: this.editors.dispose(), this.recorder.dispose(), etc.
+  // Missing: this._subscriptions.splice(0).forEach((d) => d.dispose());
+}
+```
+
+**Impact:**
+- When the extension is deactivated and reactivated, old event listeners persist
+- The Editors class holds subscriptions to: `onDidChangeActiveTextEditor`, `onDidChangeTextEditorSelection`, `onDidChangeTextEditorVisibleRanges`, `onDidChangeVisibleTextEditors`, `onDidOpenTextDocument`, `onDidCloseTextDocument`
+- These listeners are NOT cleaned up, causing accumulation with each restart
+- Result: Multiple handlers fire for the same events, causing selection conflicts
+
+**Lines to Compare:**
+- `Editors.dispose()` at line 557: Properly disposes subscriptions
+- `Recorder.dispose()` at line 75: Properly disposes subscriptions
+- Extension.dispose() is MISSING these calls
+
+---
+
+### 2. BUG: Editors._lastRemovedEditorStates Array Never Cleared
+
+**Location:** `/home/enrico/projects/dance/src/state/editors.ts` line 690
+
+**Problem:**
+```typescript
+private _handleDidCloseTextDocument(document: vscode.TextDocument) {
+  // Dispose of previous document state, if any.
+  for (const state of this._lastRemovedEditorStates) {
+    state.dispose();
+  }
+
+  this._lastRemovedEditorStates.length === 0;  // BUG: This is comparison, not assignment!
+  // Should be: this._lastRemovedEditorStates.length = 0;
+```
+
+**Impact:**
+- The array is never cleared, it keeps growing
+- Disposed editor states accumulate in memory
+- Each document close adds to the leak
+- Can cause significant memory growth over time
+
+---
+
+### 3. RACE CONDITION: Selection Update Chain with Decoration Updates
+
+**Location:** `/home/enrico/projects/dance/src/api/selections.ts` lines 42-50
+
+**Problem:**
+The `set()` function has a potential race condition:
+```typescript
+export function set(selections: readonly vscode.Selection[], context = Context.current) {
+  NotASelectionError.throwIfNotASelectionArray(selections);
+
+  context.selections = selections;           // Sets editor.selections (triggers onDidChangeTextEditorSelection)
+  reveal(selections[0], context);            // Reveals range immediately
+  vscode.commands.executeCommand("editor.action.wordHighlight.trigger");  // Extra command
+
+  return selections;
+}
+```
+
+**Issue:**
+1. Setting `editor.selections` triggers `onDidChangeTextEditorSelection` event
+2. This event handler (`_handleDidChangeTextEditorSelection`) calls `notifyDidChangeTextEditorSelection()`
+3. Which calls `_updateDecorations()` 
+4. All happening synchronously before the function returns
+5. This can conflict with the `reveal()` call and word highlight command
+
+**Impact:**
+- Cursor position may be modified by decoration updates
+- VS Code's native selection handling can conflict with Dance's updates
+- Word highlighting command can interfere with selection state
+
+---
+
+### 4. MEMORY LEAK: Event Listeners in PerEditorState
+
+**Location:** `/home/enrico/projects/dance/src/state/editors.ts` lines 174-196
+
+**Problem:**
+In `setMode()`, a mode change subscription is created but the previous one is disposed:
+```typescript
+private _changeSubscription!: vscode.Disposable;
+
+public async setMode(mode: Mode) {
+  if (previousMode !== undefined) {
+    this._modeChangeSubscription.dispose();  // Good: disposes old subscription
+    // ...
+  }
+
+  this._modeChangeSubscription = mode.onChanged(([mode, props]) => {
+    for (const prop of props) {
+      switch (prop) {
+        // ... handles various props ...
+      }
+    }
+  });
+}
+```
+
+**However**, if mode changes happen rapidly or if the editor is disposed before the handler is attached, there could be stale handlers.
+
+---
+
+### 5. CONFLICT: Multiple Decoration Update Pathways
+
+**Location:** `/home/enrico/projects/dance/src/state/editors.ts` lines 322-389
+
+**Problem:**
+Three independent update mechanisms trigger decoration updates:
+1. `notifyDidChangeTextEditorSelection()` → `_updateDecorations()`
+2. Mode changes trigger updates via subscriptions
+3. `notifyDidChangeTextEditorVisibleRanges()` → `_updateOffscreenSelectionsIndicators()`
+
+All three can execute in quick succession, and if a selection update happens while decorations are being updated, cursor position can jump due to timing issues.
+
+---
+
+### 6. ASYNC TIMING ISSUE: setTimeout in toMode()
+
+**Location:** `/home/enrico/projects/dance/src/api/modes.ts` lines 41-62
+
+**Problem:**
+```typescript
+await context.switchToMode(mode);
+
+// We must start listening for events after a short delay...
+setTimeout(() => {
+  disposable
+    .addDisposable(extension.recorder.onDidAddEntry((entry) => {
+      // ... handles events ...
+    }));
+}, 0);
+```
+
+**Issue:**
+- The event listener is added AFTER the mode switch completes
+- With `setTimeout(..., 0)`, there's a race condition window
+- User inputs during this window might not be properly recorded
+- If extension is reloaded during this period, the disposable setup fails
+
+**Impact:**
+- Undocumented delay in event handler registration
+- Potential for events to be missed during mode transitions
+- Not properly cleaned up on extension deactivation
+
+---
+
+### 7. RACE CONDITION: Disposition During Setup
+
+**Location:** `/home/enrico/projects/dance/src/state/editors.ts` lines 545-554
+
+**Problem:**
+```typescript
+constructor(...) {
+  // ... setup event handlers ...
+  
+  queueMicrotask(() => {
+    this._handleDidChangeVisibleTextEditors(vscode.window.visibleTextEditors);
+
+    const activeTextEditor = vscode.window.activeTextEditor;
+
+    if (activeTextEditor !== undefined) {
+      this._activeEditor = this._editors.get(activeTextEditor);
+      this._activeEditor?.notifyDidBecomeActive();
+    }
+  });
+}
+```
+
+**Issue:**
+- The queueMicrotask happens AFTER constructor completion
+- Event handlers are already registered and could fire before this setup
+- If extension is deactivated before the microtask executes, `this._editors` might be invalid
+- The `notifyDidBecomeActive()` call depends on proper state initialization
+
+---
+
+### 8. INSUFFICIENT CLEANUP IN showDismissibleErrorMessage()
+
+**Location:** `/home/enrico/projects/dance/src/state/extension.ts` lines 362-389
+
+**Problem:**
+```typescript
+public showDismissibleErrorMessage(message: string) {
+  // ...
+  
+  const dispose = () => {
+    this.statusBar.errorSegment.setContent();
+    this._dismissErrorMessage = undefined;
+    subscriptions.splice(0).forEach((d) => d.dispose());
+  };
+
+  const subscriptions = [
+    vscode.window.onDidChangeActiveTextEditor(dispose),
+    vscode.window.onDidChangeTextEditorSelection(dispose),
+  ];
+
+  this._dismissErrorMessage = dispose;
+}
+```
+
+**Issue:**
+- These subscriptions are tied to the error message, not the extension lifecycle
+- If extension is deactivated while error is showing, subscriptions persist
+- Creates stray event handlers that won't be cleaned up
+
+---
+
+## Symptom-to-Root-Cause Mapping
+
+### "Heavy lag on keystrokes after some usage"
+- **Primary cause:** Event listener accumulation (Issue #1)
+  - Each keystroke triggers multiple event handlers (onDidChangeTextEditorSelection)
+  - With multiple listeners registered, processing compounds
+  - After restart: VS Code cleans up, extension reloads cleanly
+
+- **Secondary cause:** Memory growth from unreleased resources (Issue #2)
+  - Causes garbage collection pressure
+  - Slower event processing as heap grows
+
+### "Cursor jumps back and forth"
+- **Primary cause:** Race condition in selection updates (Issue #3, #5)
+  - Selection set → triggers event → updates decorations → event fires again
+  - Multiple update pathways cause conflicting cursor positions
+
+- **Secondary cause:** Conflict with VS Code's word highlighting (Issue #3)
+  - The explicit `editor.action.wordHighlight.trigger` command
+  - Can interfere with selection state in tight timing windows
+
+- **Tertiary cause:** Async timing issues in mode switches (Issue #6)
+  - Mode change with `setTimeout(0)` can cause selection to be in wrong state
+  - Rapid mode changes create race conditions
+
+### "Requires restarting VS Code to fix"
+- Extension unload/reload clears all JS event listeners
+- New instance starts fresh without accumulated handlers
+- Indicates the issue is about resource accumulation, not logic bugs
+
+---
+
+## Detailed Code References
+
+### The Missing Disposals Chain
+The extension maintains these disposable resources:
+1. `this.statusBar` → ✓ disposed
+2. `this.editors` → ✗ NOT disposed
+3. `this.recorder` → ✗ NOT disposed  
+4. `this.modes` → ✗ NOT disposed
+5. `this.registers` → ✗ NOT disposed
+6. `this._subscriptions[]` → ✗ NOT disposed
+
+Each of these holds event subscriptions that should be cleaned up.
+
+### Editors Subscriptions Not Disposed
+In `/home/enrico/projects/dance/src/state/editors.ts` constructor:
+```typescript
+vscode.window.onDidChangeActiveTextEditor(
+  this._handleDidChangeActiveTextEditor, this, this._subscriptions);
+vscode.window.onDidChangeTextEditorSelection(
+  this._handleDidChangeTextEditorSelection, this, this._subscriptions);
+vscode.window.onDidChangeTextEditorVisibleRanges(
+  this._handleDidChangeTextEditorVisibleRanges, this, this._subscriptions);
+vscode.window.onDidChangeVisibleTextEditors(
+  this._handleDidChangeVisibleTextEditors, this, this._subscriptions);
+vscode.workspace.onDidOpenTextDocument(
+  this._handleDidOpenTextDocument, this, this._subscriptions);
+vscode.workspace.onDidCloseTextDocument(
+  this._handleDidCloseTextDocument, this, this._subscriptions);
+```
+
+These are properly added to `this._subscriptions` and disposed in `Editors.dispose()`.
+
+However, `Extension.dispose()` never calls `this.editors.dispose()`.
+
+---
+
+## Specific Line Numbers for Fixes Needed
+
+1. **File:** `/home/enrico/projects/dance/src/state/extension.ts`
+   - **Line 213-222:** Add disposal of core resources in `dispose()` method
+   - Should add: `this.editors.dispose()`, `this.recorder.dispose()`, `this._subscriptions.splice(0).forEach(d => d.dispose())`
+
+2. **File:** `/home/enrico/projects/dance/src/state/editors.ts`
+   - **Line 690:** Fix the comparison bug `this._lastRemovedEditorStates.length === 0` → `this._lastRemovedEditorStates.length = 0`
+
+3. **File:** `/home/enrico/projects/dance/src/api/selections.ts`
+   - **Lines 42-50:** Review the `set()` function for race conditions
+   - Consider making decoration updates happen asynchronously or debouncing
+
+4. **File:** `/home/enrico/projects/dance/src/api/modes.ts`
+   - **Lines 41-62:** Review setTimeout(0) pattern and disposal on deactivation
+
+5. **File:** `/home/enrico/projects/dance/src/state/extension.ts`
+   - **Lines 362-389:** Consider disposing error message subscriptions when extension deactivates
+
+---
+
+## Additional Issues Identified
+
+### Character Mode Conversion
+**File:** `/home/enrico/projects/dance/src/api/context.ts` lines 666-828
+
+The `selectionsToCharacterMode()` and `selectionsFromCharacterMode()` functions have complex logic that can introduce subtle bugs when selections are rapidly updated. The document access pattern:
+```typescript
+if (document === undefined) {
+  document = Context.current.document;
+}
+```
+
+This could access a stale document if the context changes during the conversion.
+
+### Decoration Type Creation Without Cleanup
+**File:** `/home/enrico/projects/dance/src/state/modes.ts` lines 244-248
+
+```typescript
+this._decorations = decorations.flatMap((d) => {
+  // ...
+  type: vscode.window.createTextEditorDecorationType(renderOptions),
+});
+```
+
+While these ARE disposed when modes are disposed, if Mode disposal is never called, these decoration types leak.
+
+---
+
+## Summary of Issues by Severity
+
+### Critical (Causes Symptoms)
+1. **Extension.dispose() missing resource cleanup** - Direct cause of event handler accumulation
+2. **Editors array clear bug** - Memory leak
+3. **Race condition in set()** - Direct cause of cursor jumping
+4. **Missing Editors.dispose() call** - Prevents cleanup
+
+### High (Contributes to Issues)
+5. Mode change decoration updates
+6. setTimeout race conditions
+7. Error message subscription cleanup
+
+### Medium (Potential Issues)
+8. CharacterMode conversion edge cases
+9. Decoration type lifecycle management
+
+---
+
+## Testing Recommendations
+
+1. **Check event listener count** during regular usage
+2. **Monitor memory growth** after extended usage
+3. **Test rapid selection changes** to identify race conditions
+4. **Test mode switching** with rapid input
+5. **Test extension reload** and verify cleanup
+
+---
+
+## Recommended Fix Priority
+
+1. Fix Extension.dispose() to call all resource disposals (CRITICAL)
+2. Fix the array.length === 0 bug (CRITICAL)
+3. Add async handling to selection updates (HIGH)
+4. Review and fix setTimeout timing issues (HIGH)
+5. Add proper error message subscription cleanup (MEDIUM)
+6. Refactor character mode conversion to use stable context (MEDIUM)
+
diff --git a/dance_specific_code_issues.txt b/dance_specific_code_issues.txt
new file mode 100644
index 0000000..89b07b4
--- /dev/null
+++ b/dance_specific_code_issues.txt
@@ -0,0 +1,411 @@
+DANCE EXTENSION - SPECIFIC CODE ISSUES WITH LINE NUMBERS
+
+================================================================================
+ISSUE #1: CRITICAL - Extension.dispose() Missing Resource Cleanup
+================================================================================
+
+File: /home/enrico/projects/dance/src/state/extension.ts
+Lines: 213-222
+
+CURRENT CODE:
+    public dispose() {
+      this._cancellationTokenSource.cancel();
+      this._cancellationTokenSource.dispose();
+
+      this._autoDisposables.forEach((disposable) => disposable.dispose());
+
+      assert(this._autoDisposables.size === 0);
+
+      this.statusBar.dispose();
+    }
+
+PROBLEMS:
+1. Missing: this.editors.dispose()
+2. Missing: this.recorder.dispose()
+3. Missing: this._subscriptions.splice(0).forEach(d => d.dispose())
+4. Missing: cleanup of error message subscriptions (from showDismissibleErrorMessage)
+
+WHY IT MATTERS:
+- this.editors holds 6 event listeners (lines 532-542)
+- this.recorder holds 4 event listeners (lines 64-69)
+- this._subscriptions holds command descriptors, view registrations, etc (lines 177-197)
+- When extension reloads, these listeners persist as new ones are added
+- Result: Event handler accumulation causing lag and cursor jumping
+
+WHAT EACH MANAGES:
+- this.editors: Manages all visible editor state and selection tracking
+  - Has Disposable at line 557-561 showing proper cleanup pattern
+- this.recorder: Manages activity recording for undo/macro
+  - Has Disposable at line 75-78 showing proper cleanup pattern
+- this._subscriptions: Tracks all global event listeners
+  - Never cleared, unlike in Editors and Recorder classes
+
+================================================================================
+ISSUE #2: CRITICAL - Array Never Cleared in Editors
+================================================================================
+
+File: /home/enrico/projects/dance/src/state/editors.ts
+Line: 690
+
+CURRENT CODE:
+    private _handleDidCloseTextDocument(document: vscode.TextDocument) {
+      // Dispose of previous document state, if any.
+      for (const state of this._lastRemovedEditorStates) {
+        state.dispose();
+      }
+
+      this._lastRemovedEditorStates.length === 0;  // <-- BUG HERE
+
+      // Dispose of fallback editor, if any.
+      const fallback = this._fallbacks.get(document);
+      // ...
+
+CORRECT CODE:
+      this._lastRemovedEditorStates.length = 0;
+
+WHY IT'S A BUG:
+- `===` is comparison operator (returns boolean, discards result)
+- `=` is assignment operator (actually clears the array)
+- Array never cleared, disposed states accumulate
+- Each editor close adds to the leak
+- Over time: significant memory growth
+
+IMPACT:
+- After closing many documents, this._lastRemovedEditorStates grows unbounded
+- Disposed PerEditorState objects held in memory
+- Each has decorations, event subscriptions that won't fire
+- GC pressure increases, causing lag
+
+================================================================================
+ISSUE #3: RACE CONDITION - Selection Updates
+================================================================================
+
+File: /home/enrico/projects/dance/src/api/selections.ts
+Lines: 42-50
+
+CURRENT CODE:
+    export function set(selections: readonly vscode.Selection[], context = Context.current) {
+      NotASelectionError.throwIfNotASelectionArray(selections);
+
+      context.selections = selections;           // LINE 45
+      reveal(selections[0], context);            // LINE 46
+      vscode.commands.executeCommand("editor.action.wordHighlight.trigger");  // LINE 47
+
+      return selections;
+    }
+
+THE RACE CONDITION:
+    Line 45: context.selections = selections
+      ↓ (triggers synchronously)
+    VS Code: onDidChangeTextEditorSelection event fires
+      ↓
+    Editors._handleDidChangeTextEditorSelection (line 593)
+      ↓
+    PerEditorState.notifyDidChangeTextEditorSelection() (line 267)
+      ↓
+    PerEditorState._updateDecorations() (line 322)
+      ↓ (modifies editor state)
+    Returns to line 46
+    
+    Line 46: reveal(selections[0], context)
+      ↓ (may use modified selections)
+    
+    Line 47: wordHighlight.trigger command
+      ↓ (external command may change selections again)
+
+SPECIFIC ISSUES:
+1. _updateDecorations() at line 322 may modify how selections appear
+2. _updateDecorations() calls setDecorations multiple times (lines 353, 355, 380, 382)
+3. These decoration changes can affect selection rendering
+4. The reveal() call at line 46 may use stale selection data
+5. The wordHighlight.trigger command at line 47 creates external interference
+
+KEY CALL CHAIN:
+File: /home/enrico/projects/dance/src/state/editors.ts
+Lines 322-389 _updateDecorations():
+  - Lines 326-333: Gets allSelections and filters by applyTo
+  - Lines 355-356: setDecorations for mode decorations
+  - Lines 359-383: setDecorations for character decorations
+  - Line 386: Updates cursorStyle and lineNumbers options
+  - Line 388: Calls _updateOffscreenSelectionsIndicators()
+
+CONFLICTS:
+1. Multiple setDecorations calls in quick succession
+2. Selection rendering may change while decoration updates happen
+3. Cursor position calculation depends on decoration state
+4. If document is modified during this, positions become stale
+
+================================================================================
+ISSUE #4: RACE CONDITION - Mode Change with setTimeout
+================================================================================
+
+File: /home/enrico/projects/dance/src/api/modes.ts
+Lines: 13-63
+
+CURRENT CODE (lines 36-62):
+    await context.switchToMode(mode);
+
+    // We must start listening for events after a short delay, otherwise we will
+    // be notified of the mode change above, immediately returning to the
+    // previous mode.
+    setTimeout(() => {
+      const { Entry } = extension.recorder;
+
+      disposable
+        .addDisposable(extension.recorder.onDidAddEntry((entry) => {
+          if (entry instanceof Entry.ExecuteCommand
+            && entry.descriptor().identifier.endsWith("updateCount")) {
+            // Ignore number inputs.
+            return;
+          }
+
+          if (entry instanceof Entry.ChangeTextEditor
+            || entry instanceof Entry.ChangeTextEditorMode) {
+            // Immediately dispose.
+            return disposable.dispose();
+          }
+
+          if (--count! === 0) {
+            disposable.dispose();
+          }
+        }));
+    }, 0);
+
+PROBLEMS:
+1. setTimeout(..., 0) means "add to end of event loop"
+2. There's a window where user input isn't being monitored
+3. If user types rapidly during this window, events are missed
+4. If extension reloads during this window, disposable setup fails
+5. No cleanup guarantee if this._editor becomes invalid
+
+TIMING ISSUE:
+    Time 0: switchToMode(mode) completes
+    Time 0: function returns to caller
+    Time 1+: setTimeout callback executes and registers listener
+    
+    Between Time 0 and Time 1:
+    - User input happens but isn't recorded
+    - Mode is "active" but listener not attached
+    - If reload happens here, listener never attached
+
+RELATED CODE:
+File: /home/enrico/projects/dance/src/state/extension.ts
+Lines 362-389: Similar pattern in showDismissibleErrorMessage
+  - Creates subscriptions not tied to extension lifecycle
+  - Won't be cleaned up on extension deactivation
+
+================================================================================
+ISSUE #5: MULTIPLE DECORATION UPDATE PATHWAYS
+================================================================================
+
+File: /home/enrico/projects/dance/src/state/editors.ts
+
+THREE INDEPENDENT UPDATE MECHANISMS:
+
+1. Selection Changes (Line 267):
+    public notifyDidChangeTextEditorSelection() {
+      this._updateDecorations(this._mode);
+    }
+    
+   Triggered by: _handleDidChangeTextEditorSelection (line 593)
+   Triggered by: onDidChangeTextEditorSelection event (line 534)
+
+2. Visible Range Changes (Line 277):
+    public notifyDidChangeTextEditorVisibleRanges() {
+      this._updateOffscreenSelectionsIndicators(this._mode);
+    }
+    
+   Triggered by: _handleDidChangeTextEditorVisibleRanges (line 597)
+   Triggered by: onDidChangeTextEditorVisibleRanges event (line 536)
+
+3. Mode Changes (Lines 174-196):
+    this._modeChangeSubscription = mode.onChanged(([mode, props]) => {
+      for (const prop of props) {
+        switch (prop) {
+          // ... cases that trigger _updateDecorations ...
+        }
+      }
+    });
+    
+   Triggered by: Mode.onChanged event
+   Can trigger: _updateDecorations, _updateSelectionsAfterBehaviorChange
+
+CONFLICT SCENARIO:
+    1. User changes selection
+    2. onDidChangeTextEditorSelection fires → _updateDecorations() called
+    3. While decorations updating, visible range changes
+    4. onDidChangeTextEditorVisibleRanges fires → _updateOffscreenSelectionsIndicators()
+    5. This calls setDecorations again
+    6. If selections are being converted (character vs caret mode), stale data used
+    
+SPECIFIC CALLS IN _updateDecorations (lines 322-389):
+    Line 355: editor.setDecorations(decoration.type, selections);
+    Line 380: editor.setDecorations(..., ranges);
+    Line 382: editor.setDecorations(..., []);
+
+If multiple pathways execute concurrently:
+    - setDecorations calls interleave
+    - Cursor position calculations may use stale data
+    - Selection conversion (toCharacterMode/fromCharacterMode) may fail
+    - Result: Cursor jumps or appears in wrong position
+
+================================================================================
+ISSUE #6: Stale Document Reference
+================================================================================
+
+File: /home/enrico/projects/dance/src/api/context.ts
+Lines: 666-828
+
+PROBLEM AREA in selectionsToCharacterMode (lines 707-720):
+    if (document === undefined) {
+      document = Context.current.document;
+    }
+
+    const activePrevLine = selectionActiveLine - 1,
+          activePrevLineLength = document.lineAt(activePrevLine).text.length;
+
+ISSUE:
+1. Document accessed without validation
+2. If Context.current changes during conversion, stale document used
+3. This can happen during rapid selection changes
+4. Result: Incorrect selection calculations
+
+ALSO IN selectionsFromCharacterMode (lines 800-825):
+    if (document === undefined) {
+      document = Context.current.document;
+    }
+
+    const lineLength = document.lineAt(selectionActiveLine).text.length;
+
+SIMILAR ISSUE:
+1. Multiple document.lineAt() calls with potentially stale reference
+2. If document changes between calls, inconsistent data
+3. Especially problematic with line count checks (line 810: selectionActiveLine + 1 < document.lineCount)
+
+WHEN THIS FAILS:
+- During rapid selection updates
+- When switching documents
+- During multi-buffer operations
+- When document is being modified
+
+================================================================================
+ISSUE #7: Disposal During Async Setup
+================================================================================
+
+File: /home/enrico/projects/dance/src/state/editors.ts
+Lines: 529-554
+
+CURRENT CODE:
+    public constructor(
+      private readonly _extension: Extension,
+    ) {
+      vscode.window.onDidChangeActiveTextEditor(
+        this._handleDidChangeActiveTextEditor, this, this._subscriptions);
+      vscode.window.onDidChangeTextEditorSelection(
+        this._handleDidChangeTextEditorSelection, this, this._subscriptions);
+      vscode.window.onDidChangeTextEditorVisibleRanges(
+        this._handleDidChangeTextEditorVisibleRanges, this, this._subscriptions);
+      vscode.window.onDidChangeVisibleTextEditors(
+        this._handleDidChangeVisibleTextEditors, this, this._subscriptions);
+      vscode.workspace.onDidOpenTextDocument(
+        this._handleDidOpenTextDocument, this, this._subscriptions);
+      vscode.workspace.onDidCloseTextDocument(
+        this._handleDidCloseTextDocument, this, this._subscriptions);
+
+      queueMicrotask(() => {                                  // LINE 545
+        this._handleDidChangeVisibleTextEditors(vscode.window.visibleTextEditors);
+
+        const activeTextEditor = vscode.window.activeTextEditor;
+
+        if (activeTextEditor !== undefined) {
+          this._activeEditor = this._editors.get(activeTextEditor);
+          this._activeEditor?.notifyDidBecomeActive();
+        }
+      });
+    }
+
+RACE CONDITION:
+1. Event handlers registered (synchronously)
+2. Constructor completes (returns)
+3. queueMicrotask scheduled but not yet executed
+4. Events can fire before microtask executes
+5. Events call _handleDidChangeVisibleTextEditors which populates _editors
+6. But microtask also calls _handleDidChangeVisibleTextEditors
+7. Potential duplicate processing or race on _editors access
+
+DISPOSAL ISSUE:
+1. If extension disposed before microtask executes
+2. Callbacks reference disposed extension
+3. _editors.get() may throw if editor was removed
+4. notifyDidBecomeActive() may fail
+
+================================================================================
+ISSUE #8: Error Message Subscriptions Not Cleaned
+================================================================================
+
+File: /home/enrico/projects/dance/src/state/extension.ts
+Lines: 362-389
+
+CURRENT CODE:
+    public showDismissibleErrorMessage(message: string) {
+      // ... error setup ...
+
+      const dispose = () => {
+        this.statusBar.errorSegment.setContent();
+        this._dismissErrorMessage = undefined;
+        subscriptions.splice(0).forEach((d) => d.dispose());
+      };
+
+      const subscriptions = [
+        vscode.window.onDidChangeActiveTextEditor(dispose),    // LINE 384
+        vscode.window.onDidChangeTextEditorSelection(dispose), // LINE 385
+      ];
+
+      this._dismissErrorMessage = dispose;
+    }
+
+PROBLEMS:
+1. Subscriptions created but not added to any lifecycle tracker
+2. If extension deactivates while error showing, subscriptions persist
+3. No cleanup on Extension.dispose()
+4. If error messages are shown multiple times, subscriptions accumulate
+5. Each error message adds 2 more event listeners
+
+WHEN IT FAILS:
+1. User triggers error
+2. Error message shown with subscriptions
+3. User disables/enables extension without dismissing error
+4. Old subscriptions persist
+5. New subscriptions added on re-enable
+6. Handlers accumulate
+
+COMPARISON:
+- Recorders subscriptions: CLEANED in Recorder.dispose()
+- Editors subscriptions: CLEANED in Editors.dispose()
+- Error subscriptions: NOT CLEANED anywhere
+
+================================================================================
+SUMMARY TABLE: What Gets Disposed vs. What Doesn't
+================================================================================
+
+COMPONENT                 CREATED AT                  DISPOSED AT           STATUS
+---------------------------------------------------------------------------------------------------
+Editors.instance          Extension line 68          ???                   ✗ LEAK
+Recorder.instance         Extension line 63          ???                   ✗ LEAK
+Registers.instance        Extension line 53          ???                   ✗ LEAK
+Modes.instance            Extension line 58          ???                   ✗ LEAK
+Extension._subscriptions  Extension lines 177-197    ???                   ✗ LEAK
+Editors._subscriptions    Editors constructor        Editors.dispose()     ✓ OK (but Editors not disposed)
+Recorder._subscriptions   Recorder constructor       Recorder.dispose()    ✓ OK (but Recorder not disposed)
+Error message subs        showDismissibleErrorMessage When error dismissed  ✗ INCOMPLETE
+Mode decorations          Mode.apply() line 247     Mode.dispose()        ✓ OK (but Modes not disposed)
+PerEditorState._change    PerEditorState.setMode()  PerEditorState.dispose() ✓ OK
+
+THE CHAIN FAILURE:
+Extension.dispose() ← Should call → Editors.dispose() ✗ MISSING
+Extension.dispose() ← Should call → Recorder.dispose() ✗ MISSING
+Extension.dispose() ← Should call → Modes.dispose() ✗ MISSING
+Extension.dispose() ← Should call → Registers cleanup ✗ MISSING
+Extension.dispose() ← Should call → _subscriptions cleanup ✗ MISSING
+
+================================================================================
diff --git a/src/api/context.ts b/src/api/context.ts
index 0e4bdd5..e16f507 100644
--- a/src/api/context.ts
+++ b/src/api/context.ts
@@ -667,6 +667,11 @@ export function selectionsToCharacterMode(
   selections: readonly vscode.Selection[],
   document?: vscode.TextDocument,
 ) {
+  // Capture document reference once at the start to avoid stale references
+  if (document === undefined) {
+    document = Context.current.document;
+  }
+
   const characterModeSelections = [] as vscode.Selection[];
 
   for (const selection of selections) {
@@ -704,10 +709,6 @@ export function selectionsToCharacterMode(
       } else {
         // The active character is the first one, so we have to get some
         // information from the document.
-        if (document === undefined) {
-          document = Context.current.document;
-        }
-
         const activePrevLine = selectionActiveLine - 1,
               activePrevLineLength = document.lineAt(activePrevLine).text.length;
 
@@ -716,8 +717,7 @@ export function selectionsToCharacterMode(
       }
     } else if (selectionAnchorLine === selectionActiveLine + 1
                && selectionAnchorCharacter === 0
-               && selectionActiveCharacter === (document ?? (document = Context.current.document))
-                 .lineAt(selectionActiveLine).text.length) {
+               && selectionActiveCharacter === document.lineAt(selectionActiveLine).text.length) {
       // Selection is reversed and one-character long: make it empty.
       anchor = selectionActive;
       changed = true;
@@ -781,6 +781,11 @@ export function selectionsFromCharacterMode(
   selections: readonly vscode.Selection[],
   document?: vscode.TextDocument,
 ) {
+  // Capture document reference once at the start to avoid stale references
+  if (document === undefined) {
+    document = Context.current.document;
+  }
+
   const caretModeSelections = [] as vscode.Selection[];
 
   for (const selection of selections) {
@@ -799,10 +804,6 @@ export function selectionsFromCharacterMode(
 
     if (isEmptyOrForwardFacing) {
       // Selection is empty or forward-facing: extend it if possible.
-      if (document === undefined) {
-        document = Context.current.document;
-      }
-
       const lineLength = document.lineAt(selectionActiveLine).text.length;
 
       if (selectionActiveCharacter === lineLength) {
diff --git a/src/api/modes.ts b/src/api/modes.ts
index 139205f..d0ab1d5 100644
--- a/src/api/modes.ts
+++ b/src/api/modes.ts
@@ -35,31 +35,30 @@ export async function toMode(modeName: string, count?: number) {
 
   await context.switchToMode(mode);
 
-  // We must start listening for events after a short delay, otherwise we will
-  // be notified of the mode change above, immediately returning to the
-  // previous mode.
-  setTimeout(() => {
-    const { Entry } = extension.recorder;
+  // Use queueMicrotask instead of setTimeout to ensure predictable event listener setup
+  // This avoids the mode change event from the switchToMode above
+  await new Promise<void>((resolve) => queueMicrotask(resolve));
 
-    disposable
-      .addDisposable(extension.recorder.onDidAddEntry((entry) => {
-        if (entry instanceof Entry.ExecuteCommand
-          && entry.descriptor().identifier.endsWith("updateCount")) {
-          // Ignore number inputs.
-          return;
-        }
+  const { Entry } = extension.recorder;
 
-        if (entry instanceof Entry.ChangeTextEditor
-          || entry instanceof Entry.ChangeTextEditorMode) {
-          // Immediately dispose.
-          return disposable.dispose();
-        }
+  disposable
+    .addDisposable(extension.recorder.onDidAddEntry((entry) => {
+      if (entry instanceof Entry.ExecuteCommand
+        && entry.descriptor().identifier.endsWith("updateCount")) {
+        // Ignore number inputs.
+        return;
+      }
 
-        if (--count! === 0) {
-          disposable.dispose();
-        }
-      }));
-  }, 0);
+      if (entry instanceof Entry.ChangeTextEditor
+        || entry instanceof Entry.ChangeTextEditorMode) {
+        // Immediately dispose.
+        return disposable.dispose();
+      }
+
+      if (--count! === 0) {
+        disposable.dispose();
+      }
+    }));
 }
 
 /**
diff --git a/src/api/selections.ts b/src/api/selections.ts
index 707175f..d013a6c 100644
--- a/src/api/selections.ts
+++ b/src/api/selections.ts
@@ -43,7 +43,13 @@ export function set(selections: readonly vscode.Selection[], context = Context.c
   NotASelectionError.throwIfNotASelectionArray(selections);
 
   context.selections = selections;
-  reveal(selections[0], context);
+
+  // Defer reveal to avoid race condition with onDidChangeTextEditorSelection handlers
+  // This ensures selection update events complete before we scroll the viewport
+  setImmediate(() => {
+    reveal(selections[0], context);
+  });
+
   vscode.commands.executeCommand("editor.action.wordHighlight.trigger");
 
   return selections;
diff --git a/src/state/editors.ts b/src/state/editors.ts
index c0f1870..1d6f9ac 100644
--- a/src/state/editors.ts
+++ b/src/state/editors.ts
@@ -502,6 +502,7 @@ export class Editors implements vscode.Disposable {
   private readonly _onModeDidChange = new vscode.EventEmitter<PerEditorState>();
   private readonly _subscriptions: vscode.Disposable[] = [];
   private _activeEditor?: PerEditorState;
+  private _isDisposed = false;
 
   private readonly _lastRemovedEditorStates: PerEditorState[] = [];
   private _lastRemovedEditorUri: string = "";
@@ -543,6 +544,11 @@ export class Editors implements vscode.Disposable {
       this._handleDidCloseTextDocument, this, this._subscriptions);
 
     queueMicrotask(() => {
+      // Check if disposed before initialization completes
+      if (this._isDisposed) {
+        return;
+      }
+
       this._handleDidChangeVisibleTextEditors(vscode.window.visibleTextEditors);
 
       const activeTextEditor = vscode.window.activeTextEditor;
@@ -555,6 +561,7 @@ export class Editors implements vscode.Disposable {
   }
 
   public dispose() {
+    this._isDisposed = true;
     this._subscriptions.splice(0).forEach((d) => d.dispose());
     this._lastRemovedEditorStates.splice(0).forEach((s) => s.dispose());
     this.characterDecorationType.dispose();
@@ -687,7 +694,7 @@ export class Editors implements vscode.Disposable {
       state.dispose();
     }
 
-    this._lastRemovedEditorStates.length === 0;
+    this._lastRemovedEditorStates.length = 0;
 
     // Dispose of fallback editor, if any.
     const fallback = this._fallbacks.get(document);
diff --git a/src/state/extension.ts b/src/state/extension.ts
index c98ceba..01f2486 100644
--- a/src/state/extension.ts
+++ b/src/state/extension.ts
@@ -219,6 +219,24 @@ export class Extension implements vscode.Disposable {
     assert(this._autoDisposables.size === 0);
 
     this.statusBar.dispose();
+
+    // Dispose of all subscriptions to prevent event listener accumulation
+    for (const subscription of this._subscriptions) {
+      subscription.dispose();
+    }
+    this._subscriptions.length = 0;
+
+    // Dispose of core components
+    this.editors.dispose();
+    this.recorder.dispose();
+    this.modes.dispose();
+    this.registers.dispose();
+
+    // Clear configuration handlers
+    this._configurationChangeHandlers.clear();
+
+    // Dismiss any active error messages to clean up their subscriptions
+    this.dismissErrorMessage();
   }
 
   /**