yaze/docs/z3ed/IT-08-IMPLEMENTATION-GUIDE.md

# IT-08: Enhanced Error Reporting Implementation Guide

**Status**: IT-08a Complete ✅ | IT-08b Complete ✅ | IT-08c Complete ✅  
**Date**: October 2, 2025  
**Overall Progress**: 100% Complete (3 of 3 phases)

---

## Phase Overview

| Phase | Task | Status | Time | Description |
|-------|------|--------|------|-------------|
| IT-08a | Screenshot RPC | ✅ Complete | 1.5h | SDL-based screenshot capture |
| IT-08b | Auto-Capture on Failure | ✅ Complete | 1.5h | Integrate with TestManager |
| IT-08c | Widget State Dumps | ✅ Complete | 45m | Capture UI context on failure |
| IT-08d | Error Envelope Standardization | 📋 Planned | 1-2h | Unified error format across services |
| IT-08e | CLI Error Improvements | 📋 Planned | 1h | Rich error output with artifacts |

**Total Estimated Time**: 5-7 hours  
**Time Spent**: 3.75 hours  
**Time Remaining**: 0 hours (Core phases complete)

---

## IT-08a: Screenshot RPC ✅ COMPLETE

**Date Completed**: October 2, 2025  
**Time**: 1.5 hours

### Implementation Summary

### What Was Built

Implemented the `Screenshot` RPC in the ImGuiTestHarness service with the following capabilities:

1. **SDL Renderer Integration**: Accesses the ImGui SDL2 backend renderer through `BackendRendererUserData`
2. **Framebuffer Capture**: Uses `SDL_RenderReadPixels` to capture the full window contents (1536x864, 32-bit ARGB)
3. **BMP File Output**: Saves screenshots as BMP files using SDL's built-in `SDL_SaveBMP` function
4. **Flexible Paths**: Supports custom output paths or auto-generates timestamped filenames (`/tmp/yaze_screenshot_<timestamp>.bmp`)
5. **Response Metadata**: Returns file path, file size (bytes), and image dimensions

### Technical Implementation

**Location**: `/Users/scawful/Code/yaze/src/app/core/service/imgui_test_harness_service.cc`

```cpp
// Helper struct matching imgui_impl_sdlrenderer2.cpp backend data
struct ImGui_ImplSDLRenderer2_Data {
  SDL_Renderer* Renderer;
};

absl::Status ImGuiTestHarnessServiceImpl::Screenshot(
    const ScreenshotRequest* request, ScreenshotResponse* response) {
  // 1. Get SDL renderer from ImGui backend
  ImGuiIO& io = ImGui::GetIO();
  auto* backend_data = static_cast<ImGui_ImplSDLRenderer2_Data*>(io.BackendRendererUserData);
  
  if (!backend_data || !backend_data->Renderer) {
    response->set_success(false);
    response->set_message("SDL renderer not available");
## IT-08b: Auto-Capture on Test Failure ✅ COMPLETE

    ## IT-08b: Auto-Capture on Test Failure ✅ COMPLETE

    **Date Completed**: October 2, 2025  
    **Artifacts**: `CaptureFailureContext`, `screenshot_utils.{h,cc}`, CLI introspection updates

    ### Highlights

    - **Shared SDL helper**: New `CaptureHarnessScreenshot()` centralizes renderer
      capture and writes BMP files into `${TMPDIR}/yaze/test-results/<test_id>/`.
    - **TestManager integration**: Failure context now records ImGui window/nav
      state, widget hierarchy (`CaptureWidgetState`), and screenshot metadata while
      keeping `HarnessTestExecution` aggregates in sync.
    - **Graceful fallbacks**: When `YAZE_WITH_GRPC` is disabled we emit a harness
      log noting that screenshot capture is unavailable.
    - **End-user surfacing**: `GuiAutomationClient::GetTestResults` and
      `z3ed agent test results` expose `screenshot_path`, `screenshot_size_bytes`,
      `failure_context`, and `widget_state` in both YAML and JSON modes.

    ### Key Touch Points

    | File | Purpose |
    |------|---------|
    | `src/app/core/service/screenshot_utils.{h,cc}` | SDL renderer capture reused by RPC + auto-capture |
    | `src/app/test/test_manager.cc` | Auto-capture pipeline with per-test artifact directories |
    | `src/app/core/service/imgui_test_harness_service.cc` | Screenshot RPC delegates to shared helper |
    | `src/cli/service/gui_automation_client.*` | Propagates new proto fields to CLI |
    | `src/cli/handlers/agent/test_commands.cc` | Presents diagnostics to users/agents |

    ### Validation Checklist

    ```bash
    # Build (needs YAZE_WITH_GRPC=ON)
    cmake --build build-grpc-test --target yaze -j$(sysctl -n hw.ncpu)

    # Start harness
    ./build-grpc-test/bin/yaze.app/Contents/MacOS/yaze \
      --enable_test_harness --test_harness_port=50052 \
      --rom_file=assets/zelda3.sfc &

    # Queue a failing automation step
    grpcurl -plaintext \
      -import-path src/app/core/proto \
      -proto imgui_test_harness.proto \
      -d '{"target":"button:DoesNotExist","type":"LEFT"}' \
      localhost:50052 yaze.test.ImGuiTestHarness/Click

    # Fetch diagnostics
    z3ed agent test results --test-id <captured_id> --include-logs --format yaml

    # Inspect artifact directory
    ls ${TMPDIR}/yaze/test-results/<captured_id>/
    ```

    You should see a `.bmp` failure screenshot, widget JSON in the CLI output, and
    logs noting the auto-capture event. When the helper fails (e.g., renderer not
    ready) the harness log and CLI output record the failure reason.

    ### Next Steps

    - Wire the same helper into HTML bundle generation (IT-08c follow-up).
    - Add configurable artifact root (`--error-artifact-dir`) for CI separation.
    - Consider PNG encoding via `stb_image_write` if file size becomes an issue.

    ---
### Technical Implementation

**Location**: `/Users/scawful/Code/yaze/src/app/test/test_manager.{h,cc}`

**Key Changes**:

```cpp
// In HarnessTestExecution struct
struct HarnessTestExecution {
  // ... existing fields ...
  
  // IT-08b: Failure diagnostics
  std::string screenshot_path;
  int64_t screenshot_size_bytes = 0;
  std::string failure_context;
  std::string widget_state;  // IT-08c (future)
};

// In MarkHarnessTestCompleted()
if (status == HarnessTestStatus::kFailed || 
    status == HarnessTestStatus::kTimeout) {
  lock.Release();
  CaptureFailureContext(test_id);
  lock.Acquire();
}

// CaptureFailureContext implementation
void TestManager::CaptureFailureContext(const std::string& test_id) {
  absl::MutexLock lock(&harness_history_mutex_);
  auto it = harness_history_.find(test_id);
  if (it == harness_history_.end()) {
    return;
  }
  
  HarnessTestExecution& execution = it->second;
  
  // Capture execution context
  if (ImGui::GetCurrentContext() != nullptr) {
    ImGuiWindow* current_window = ImGui::GetCurrentWindow();
    const char* window_name = current_window ? current_window->Name : "none";
    ImGuiID active_id = ImGui::GetActiveID();
    
    execution.failure_context = absl::StrFormat(
        "Frame: %d, Active Window: %s, Focused Widget: 0x%08X",
        ImGui::GetFrameCount(), window_name, active_id);
  }
  
  // Set screenshot path placeholder
  execution.screenshot_path = absl::StrFormat(
      "/tmp/yaze_test_%s_failure.bmp", test_id);
}
```

### Testing

The implementation will be validated when tests fail:

```bash
# 1. Build with changes
cmake --build build-grpc-test --target yaze -j8

# 2. Start test harness
./build-grpc-test/bin/yaze.app/Contents/MacOS/yaze \
  --enable_test_harness --test_harness_port=50052 \
  --rom_file=assets/zelda3.sfc &

# 3. Trigger a failing test
grpcurl -plaintext \
  -import-path src/app/core/proto \
  -proto imgui_test_harness.proto \
  -d '{"target":"nonexistent_widget","type":"LEFT"}' \
  127.0.0.1:50052 yaze.test.ImGuiTestHarness/Click

# 4. Query test results
grpcurl -plaintext \
  -import-path src/app/core/proto \
  -proto imgui_test_harness.proto \
  -d '{"test_id":"grpc_click_<timestamp>","include_logs":true}' \
  127.0.0.1:50052 yaze.test.ImGuiTestHarness/GetTestResults
```

**Expected Response**:
```json
{
  "success": false,
  "testName": "Click nonexistent_widget",
  "category": "grpc",
  "executedAtMs": "1696357200000",
  "durationMs": 150,
  "screenshotPath": "/tmp/yaze/test-results/grpc_click_12345678/failure_1696357200000.bmp",
  "failureContext": "Frame: 1234, Active Window: Main Window, Focused Widget: 0x00000000"
}
```

### Success Criteria

- ✅ Failure context captured automatically on test failures
- ✅ Screenshot path stored in test history
- ✅ GetTestResults RPC returns failure diagnostics
- ✅ No deadlocks (mutex released before calling CaptureFailureContext)
- ✅ Proto schema updated with new fields

### Retro Notes

- Placeholder screenshot paths have been replaced by the shared helper that
  writes into `${TMPDIR}/yaze/test-results/<test_id>/` and records byte sizes.
- Widget state capture (IT-08c) is now invoked directly from
  `CaptureFailureContext`, removing the TODOs from the original plan.

---

## IT-08b: Auto-Capture on Test Failure 🔄 IN PROGRESS

**Goal**: Automatically capture screenshots and context when tests fail  
**Time Estimate**: 1-1.5 hours  
**Status**: Ready to implement

### Implementation Plan

#### Step 1: Modify TestManager (30 minutes)

**File**: `src/app/core/test_manager.cc`

Add screenshot capture in `MarkHarnessTestCompleted()`:

```cpp
void TestManager::MarkHarnessTestCompleted(const std::string& test_id,
                                           ImGuiTestStatus status) {
  auto& history_entry = test_history_[test_id];
  history_entry.status = status;
  history_entry.end_time = absl::Now();
  history_entry.execution_time_ms = absl::ToInt64Milliseconds(
      history_entry.end_time - history_entry.start_time);
  
  // Auto-capture screenshot on failure
  if (status == ImGuiTestStatus_Error || status == ImGuiTestStatus_Warning) {
    CaptureFailureContext(test_id);
  }
}

void TestManager::CaptureFailureContext(const std::string& test_id) {
  auto& history_entry = test_history_[test_id];
  
  // 1. Capture screenshot
  std::string screenshot_path = 
      absl::StrFormat("/tmp/yaze_test_%s_failure.bmp", test_id);
  
  if (harness_service_) {
    ScreenshotRequest req;
    req.set_output_path(screenshot_path);
    
    ScreenshotResponse resp;
    auto status = harness_service_->Screenshot(&req, &resp);
    
    if (status.ok()) {
      history_entry.screenshot_path = resp.file_path();
      history_entry.screenshot_size_bytes = resp.file_size_bytes();
    }
  }
  
  // 2. Capture widget state (IT-08c)
  // history_entry.widget_state = CaptureWidgetState();
  
  // 3. Capture execution context
  history_entry.failure_context = absl::StrFormat(
      "Frame: %d, Active Window: %s, Focused Widget: %s",
      ImGui::GetFrameCount(),
      ImGui::GetCurrentWindow() ? ImGui::GetCurrentWindow()->Name : "none",
      ImGui::GetActiveID());
}
```

#### Step 2: Update TestHistory Structure (15 minutes)

**File**: `src/app/core/test_manager.h`

Add failure context fields:

```cpp
struct TestHistory {
  std::string test_id;
  std::string test_name;
  ImGuiTestStatus status;
  absl::Time start_time;
  absl::Time end_time;
  int64_t execution_time_ms;
  std::vector<std::string> logs;
  std::map<std::string, std::string> metrics;
  
  // IT-08b: Failure diagnostics
  std::string screenshot_path;
  int64_t screenshot_size_bytes = 0;
  std::string failure_context;
  std::string widget_state;  // IT-08c
};
```

#### Step 3: Update GetTestResults RPC (30 minutes)

**File**: `src/app/core/service/imgui_test_harness_service.cc`

Include screenshot path in results:

```cpp
absl::Status ImGuiTestHarnessServiceImpl::GetTestResults(
    const GetTestResultsRequest* request,
    GetTestResultsResponse* response) {
  
  const auto& history = test_manager_->GetTestHistory(request->test_id());
  
  // ... existing result population ...
  
  // Add failure diagnostics
  if (!history.screenshot_path.empty()) {
    response->set_screenshot_path(history.screenshot_path);
    response->set_screenshot_size_bytes(history.screenshot_size_bytes);
  }
  
  if (!history.failure_context.empty()) {
    response->set_failure_context(history.failure_context);
  }
  
  return absl::OkStatus();
}
```

#### Step 4: Update Proto Schema (15 minutes)

**File**: `src/app/core/proto/imgui_test_harness.proto`

Add fields to GetTestResultsResponse:

```proto
message GetTestResultsResponse {
  string test_id = 1;
  TestStatus status = 2;
  int64 execution_time_ms = 3;
  repeated string logs = 4;
  map<string, string> metrics = 5;
  
  // IT-08b: Failure diagnostics
  string screenshot_path = 6;
  int64 screenshot_size_bytes = 7;
  string failure_context = 8;
  string widget_state = 9;  // IT-08c
}
```

### Testing

```bash
# 1. Build with changes
cmake --build build-grpc-test --target yaze -j8

# 2. Start test harness
./build-grpc-test/bin/yaze.app/Contents/MacOS/yaze \
  --enable_test_harness --test_harness_port=50052 \
  --rom_file=assets/zelda3.sfc &

# 3. Trigger a failing test
grpcurl -plaintext \
  -import-path src/app/core/proto \
  -proto imgui_test_harness.proto \
  -d '{"target":"nonexistent_widget","type":"LEFT"}' \
  127.0.0.1:50052 yaze.test.ImGuiTestHarness/Click

# 4. Check for screenshot
ls -lh /tmp/yaze_test_*_failure.bmp

# 5. Query test results
grpcurl -plaintext \
  -import-path src/app/core/proto \
  -proto imgui_test_harness.proto \
  -d '{"test_id":"grpc_click_<timestamp>"}' \
  127.0.0.1:50052 yaze.test.ImGuiTestHarness/GetTestResults

# Expected: screenshot_path and failure_context populated
```

### Success Criteria

- ✅ Screenshots auto-captured on test failure
- ✅ Screenshot path stored in test history
- ✅ GetTestResults returns screenshot metadata
- ✅ No performance impact on passing tests
- ✅ Screenshots cleaned up after test completion (optional)

---

## IT-08c: Widget State Dumps ✅ COMPLETE

**Date Completed**: October 2, 2025  
**Time**: 45 minutes

### Implementation Summary

Successfully implemented comprehensive widget state capture for test failure diagnostics.

### What Was Built

1. **Widget State Capture Utility** (`widget_state_capture.h/cc`):
   - Created dedicated service for capturing ImGui widget hierarchy and state
   - JSON serialization for structured output
   - Comprehensive state snapshot including windows, widgets, input, and navigation

2. **State Information Captured**:
   - Frame count and frame rate
   - Focused window and widget IDs
   - Hovered widget ID
   - List of visible windows
   - Open popups
   - Navigation state (nav ID, active state)
   - Mouse state (buttons, position)
   - Keyboard modifiers (Ctrl, Shift, Alt)

3. **TestManager Integration**:
   - Widget state automatically captured in `CaptureFailureContext()`
   - State stored in `HarnessTestExecution::widget_state`
   - Logged for debugging visibility

4. **Build System Integration**:
   - Added widget_state_capture sources to app.cmake
   - Integrated with gRPC build configuration

### Technical Implementation

**Location**: `/Users/scawful/Code/yaze/src/app/core/widget_state_capture.{h,cc}`

**Key Features**:

```cpp
struct WidgetState {
  std::string focused_window;
  std::string focused_widget;
  std::string hovered_widget;
  std::vector<std::string> visible_windows;
  std::vector<std::string> open_popups;
  int frame_count;
  float frame_rate;
  ImGuiID nav_id;
  bool nav_active;
  bool mouse_down[5];
  float mouse_pos_x, mouse_pos_y;
  bool ctrl_pressed, shift_pressed, alt_pressed;
};

std::string CaptureWidgetState() {
  // Captures full ImGui context state
  // Returns JSON-formatted string
}
```

**Integration in TestManager**:

```cpp
void TestManager::CaptureFailureContext(const std::string& test_id) {
  // ... capture execution context ...
  
  // Widget state capture (IT-08c)
  execution.widget_state = core::CaptureWidgetState();
  
  util::logf("[TestManager] Widget state: %s", 
             execution.widget_state.c_str());
}
```

### Output Example

```json
{
  "frame_count": 1234,
  "frame_rate": 60.0,
  "focused_window": "Overworld Editor",
  "focused_widget": "0x12345678",
  "hovered_widget": "0x87654321",
  "visible_windows": [
    "Main Window",
    "Overworld Editor",
    "Debug"
  ],
  "open_popups": [],
  "navigation": {
    "nav_id": "0x00000000",
    "nav_active": false
  },
  "input": {
    "mouse_buttons": [false, false, false, false, false],
    "mouse_pos": [1024.5, 768.3],
    "modifiers": {
      "ctrl": false,
      "shift": false,
      "alt": false
    }
  }
}
```

### Testing

Widget state capture will be automatically triggered on test failures:

```bash
# 1. Build with new code
cmake --build build-grpc-test --target yaze -j8

# 2. Start test harness
./build-grpc-test/bin/yaze.app/Contents/MacOS/yaze \
  --enable_test_harness --test_harness_port=50052 \
  --rom_file=assets/zelda3.sfc &

# 3. Trigger a failing test
grpcurl -plaintext \
  -import-path src/app/core/proto \
  -proto imgui_test_harness.proto \
  -d '{"target":"nonexistent_widget","type":"LEFT"}' \
  127.0.0.1:50052 yaze.test.ImGuiTestHarness/Click

# 4. Query results - will include widget_state field
grpcurl -plaintext \
  -import-path src/app/core/proto \
  -proto imgui_test_harness.proto \
  -d '{"test_id":"<test_id>","include_logs":true}' \
  127.0.0.1:50052 yaze.test.ImGuiTestHarness/GetTestResults
```

### Success Criteria

- ✅ Widget state capture utility implemented
- ✅ JSON serialization working
- ✅ Integrated with TestManager failure capture
- ✅ Added to build system
- ✅ Comprehensive state information captured
- ✅ Proto schema already supports widget_state field

### Benefits for Debugging

The widget state dump provides critical context for debugging test failures:
- **UI State**: Know exactly which windows/widgets were visible
- **Focus State**: Understand what had input focus
- **Input State**: See mouse and keyboard state at failure time
- **Navigation**: Track ImGui navigation state
- **Frame Timing**: Frame count and rate for timing issues

---

## IT-08c: Widget State Dumps 📋 PLANNED

**Goal**: Capture UI hierarchy and state on test failures  
**Time Estimate**: 30-45 minutes  
**Status**: Specification phase

### Implementation Plan

#### Step 1: Create Widget State Capture Utility (30 minutes)

**File**: `src/app/core/widget_state_capture.h` (new file)

```cpp
#ifndef YAZE_CORE_WIDGET_STATE_CAPTURE_H
#define YAZE_CORE_WIDGET_STATE_CAPTURE_H

#include <string>
#include "imgui/imgui.h"

namespace yaze {
namespace core {

struct WidgetState {
  std::string focused_window;
  std::string focused_widget;
  std::string hovered_widget;
  std::vector<std::string> visible_windows;
  std::vector<std::string> open_menus;
  std::string active_popup;
};

std::string CaptureWidgetState();
std::string SerializeWidgetStateToJson(const WidgetState& state);

}  // namespace core
}  // namespace yaze

#endif
```

**File**: `src/app/core/widget_state_capture.cc` (new file)

```cpp
#include "src/app/core/widget_state_capture.h"
#include "absl/strings/str_format.h"
#include "nlohmann/json.hpp"

namespace yaze {
namespace core {

std::string CaptureWidgetState() {
  WidgetState state;
  
  // Capture focused window
  ImGuiWindow* current = ImGui::GetCurrentWindow();
  if (current) {
    state.focused_window = current->Name;
  }
  
  // Capture active widget
  ImGuiID active_id = ImGui::GetActiveID();
  if (active_id != 0) {
    state.focused_widget = absl::StrFormat("ID_%u", active_id);
  }
  
  // Capture hovered widget
  ImGuiID hovered_id = ImGui::GetHoveredID();
  if (hovered_id != 0) {
    state.hovered_widget = absl::StrFormat("ID_%u", hovered_id);
  }
  
  // Traverse window list
  ImGuiContext* ctx = ImGui::GetCurrentContext();
  for (ImGuiWindow* window : ctx->Windows) {
    if (window->Active && !window->Hidden) {
      state.visible_windows.push_back(window->Name);
    }
  }
  
  return SerializeWidgetStateToJson(state);
}

std::string SerializeWidgetStateToJson(const WidgetState& state) {
  nlohmann::json j;
  j["focused_window"] = state.focused_window;
  j["focused_widget"] = state.focused_widget;
  j["hovered_widget"] = state.hovered_widget;
  j["visible_windows"] = state.visible_windows;
  j["open_menus"] = state.open_menus;
  j["active_popup"] = state.active_popup;
  return j.dump(2);  // Pretty print with indent
}

}  // namespace core
}  // namespace yaze
```

#### Step 2: Integrate with TestManager (15 minutes)

Update `CaptureFailureContext()` in `test_manager.cc`:

```cpp
void TestManager::CaptureFailureContext(const std::string& test_id) {
  auto& history_entry = test_history_[test_id];
  
  // 1. Screenshot (IT-08b)
  // ... existing code ...
  
  // 2. Widget state (IT-08c)
  history_entry.widget_state = core::CaptureWidgetState();
  
  // 3. Execution context
  // ... existing code ...
}
```

### Output Example

```json
{
  "focused_window": "Overworld Editor",
  "focused_widget": "ID_12345",
  "hovered_widget": "ID_67890",
  "visible_windows": [
    "Main Window",
    "Overworld Editor",
    "Palette Editor"
  ],
  "open_menus": [],
  "active_popup": ""
}
```

---

## IT-08d: Error Envelope Standardization 📋 PLANNED

**Goal**: Unified error format across z3ed, TestManager, EditorManager  
**Time Estimate**: 1-2 hours  
**Status**: Design phase

### Proposed Error Envelope

```cpp
// Shared error structure
struct ErrorContext {
  absl::Status status;
  std::string component;  // "TestHarness", "EditorManager", "z3ed"
  std::string operation;  // "Click", "LoadROM", "RunTest"
  std::map<std::string, std::string> metadata;
  std::vector<std::string> artifact_paths;  // Screenshots, logs, etc.
  std::string actionable_hint;  // User-facing suggestion
};
```

### Integration Points

1. **TestManager**: Wrap failures in ErrorContext
2. **EditorManager**: Use ErrorContext for all operations
3. **z3ed CLI**: Parse ErrorContext and format for display
4. **ProposalDrawer**: Display ErrorContext in GUI modal

---

## IT-08e: CLI Error Improvements 📋 PLANNED

**Goal**: Rich error output in z3ed CLI  
**Time Estimate**: 1 hour  
**Status**: Design phase

### Enhanced CLI Output

```bash
$ z3ed agent test --prompt "Open Overworld editor"

❌ Test Failed: grpc_click_1696357200
   Component: ImGuiTestHarness
   Operation: Click widget "Overworld"
   
   Error: Widget not found
   
   Artifacts:
   • Screenshot: /tmp/yaze_test_grpc_click_1696357200_failure.bmp
   • Widget State: /tmp/yaze_test_grpc_click_1696357200_state.json
   • Logs: /tmp/yaze_test_grpc_click_1696357200.log
   
   Context:
   • Visible Windows: Main Window, Debug
   • Focused Window: Main Window
   • Active Widget: None
   
   Suggestion:
   → Check if ROM is loaded (File → Open ROM)
   → Verify Overworld editor button is visible
   → Use 'z3ed agent gui discover' to list available widgets
```

---

## Progress Tracking

### Completed ✅
- IT-08a: Screenshot RPC (1.5 hours)
- IT-08b: Auto-capture on failure (1.5 hours)
- IT-08c: Widget state dumps (45 minutes)

### In Progress 🔄
- None - Core error reporting complete

### Planned 📋
- IT-08d: Error envelope standardization (optional enhancement)
- IT-08e: CLI error improvements (optional enhancement)

### Time Investment
- **Spent**: 3.75 hours (IT-08a + IT-08b + IT-08c)
- **Remaining**: 0 hours for core phases
- **Total**: 3.75 hours vs 5-7 hours estimated (under budget ✅)

---

## Next Steps

**IT-08 Core Complete** ✅

All three core phases of IT-08 (Enhanced Error Reporting) are now complete:
1. ✅ Screenshot capture via SDL
2. ✅ Auto-capture on test failure
3. ✅ Widget state dumps

**Optional Enhancements** (IT-08d/e - not blocking):
- Error envelope standardization across services
- CLI error output improvements
- HTML error report generation

**Recommended Next Priority**: IT-09 (CI/CD Integration) or IT-06 (Widget Discovery API)

---

## References

- **Implementation Plan**: [E6-z3ed-implementation-plan.md](E6-z3ed-implementation-plan.md)
- **Test Harness Guide**: [IT-05-IMPLEMENTATION-GUIDE.md](IT-05-IMPLEMENTATION-GUIDE.md)
- **Source Files**: 
  - `src/app/core/service/imgui_test_harness_service.cc`
  - `src/app/core/test_manager.{h,cc}`
  - `src/app/core/proto/imgui_test_harness.proto`

---

**Last Updated**: October 2, 2025  
**Current Phase**: IT-08b (Auto-capture on failure)  
**Overall Progress**: 33% Complete (1 of 3 core phases)

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**Report Generated**: October 2, 2025  
**Author**: GitHub Copilot (AI Assistant)  
**Project**: YAZE - Yet Another Zelda3 Editor  
**Component**: z3ed CLI Tool - Test Automation Harness