# Qwen3 Coder Next MLX — Evaluation

## Task Compliance: Did it only list snippets, or also suggest implementation?

- **Failed to stay within scope.** The prompt explicitly said "DON'T CHANGE ANY CODE, JUST GIVE ME THE SNIPPETS I NEED." The model did not change code, but it went well beyond listing snippets:
  - Every snippet section includes a "Why this matters" block that explains *how* to implement the prefix image feature (e.g., "you'd draw it here", "you'll need to account for the image's height").
  - Section 4 includes a concrete implementation suggestion with code (`let totalWidth = imageSize.width + ...`).
  - Section 5 suggests new `Configuration` fields to add (`prefixImage: UIImage?`, `prefixImageWidthRatio`, etc.).
  - Section 6 includes a draft implementation snippet (`if let prefixImage { ... prefixImage.draw(in: imageRect) }`).
  - The "Bonus" section and summary table also lean heavily into implementation guidance.
- The model acknowledged the constraint ("since you're *not* changing code") but then violated it repeatedly throughout the response.

## Snippet Coverage: Did it find all the related places?

**Found (correct and relevant):**
- Title/subtitle drawing section (`// 7. Draw title and subtitle`) in `decorate(...)` — core snippet
- Title area height calculation (`titleAreaHeight`) — correct
- Title position layout logic (`titlePosition == .top/bottom` branching) — correct
- `alignedX` helper — correct (though listed twice, both as part of snippet 1 and as standalone snippet 4)
- `Configuration` struct fields — mentioned but only listed a few fields rather than showing the actual struct
- `UIGraphicsImageRenderer` usage — correct, though somewhat redundant with snippet 1

**Missed (notable omissions):**
- **`fittedFont(...)` method** — this is called for both title and subtitle text to auto-shrink fonts to fit width. Adding a prefix image would reduce `maxTextWidth`, directly affecting this method. Not mentioned at all.
- **`decoratorConfig` computed property** in `ExportSheet` — this is where the `Configuration` is built from UI state. Any new prefix image config fields would need to be wired through here.
- **`generatePreview()` method** — this is the call site that invokes `decorator.decorate(...)`. If a prefix image needs to be passed to the decorator, this method would need changes.
- **`previewTriggerHash`** — the combined hash that triggers preview regeneration. A new prefix image setting would need to be added here.
- **`applyTemplateSettings()`** — where template config is applied to state vars. New fields need to flow through here.
- **`saveSettings()` / `loadSavedSettings()`** — persistence of export settings. New config needs to be saved/loaded.
- **`ExportSettings` struct** — the persistence model would need new fields.
- **The `decorate()` method signature** — currently takes `mapImage`, `title`, `subtitle`, `targetSize`. A prefix image would likely need to be passed as an additional parameter.
- **Preset template configurations** (e.g., `.artDeco`, `.bauhaus`, etc.) — each template defines a `Configuration`. Templates might need a default prefix image setting.
- **`mapFrameWidth` calculation** — `contentWidth - (2 * padding) - (2 * contentInset) - (2 * borderMetrics.totalInset)` was included in snippet 3 but the model didn't note that the formula in the actual code is `contentWidth - (2 * padding)` (without the extra `contentInset` and `borderMetrics` subtractions that appear in `mapAreaWidth`). The snippet shown has a slightly different formula than the actual code.

## Other Issues

- **Duplicated content**: The `alignedX` function appears twice (snippet 1 and snippet 4), wasting space without adding value.
- **Snippet accuracy**: Section 3 shows `mapFrameWidth = contentWidth - (2 * padding) - (2 * contentInset) - (2 * borderMetrics.totalInset)` but the actual code (line 3823) is `mapFrameWidth = contentWidth - (2 * padding)`. The model appears to have hallucinated part of this formula.
- **Truncated code**: In snippet 1, the `else if` branch for subtitle-only is truncated with `...` rather than shown.
- **Summary table**: Useful but reiterates implementation advice rather than just summarizing what was found.

## Grade: **C**

The model found the most critical core snippets (the drawing code, height calculation, layout logic), which is solid work. However, it significantly violated the "just give me snippets" instruction by providing extensive implementation guidance throughout. It also missed several important related locations (the `fittedFont` method, `decoratorConfig`, `generatePreview`, `previewTriggerHash`, persistence, and template presets) that someone would need to understand for a complete picture. The duplicated `alignedX` listing and the hallucinated formula in snippet 3 further reduce confidence. The core snippets are right, but the response is both too much (implementation advice) and too little (missed locations).