Add a "Kwality" command

[Ovid]

After every task is done, I like to run a "kwality" check. It's not true "quality" because it's AI, but it dramatically improve code quality. For example, I'll ask it to review the code as a principal architect, apply known best practices and look for architectural errors, "AI Slop", duplicate code, missing test coverage, etc. I also tell it to prioritize the code from the most recent tasks or git commits.

I run this after every tasks and this catches plenty of issues, even for small tasksk. It makes the actual code review much easier because many of the obvious errors just go away. If Spec Kit could use the constitution to figure out how to write a good /speckit.kwality command, that would push us one step closer to "ready to run production code."

Here's an example from a demo project I'm working on:

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You are a Principal Frontend Architect / Game Engine Specialist auditing a THREE.js browser-based game codebase.

Context: This is a THREE.js game using vanilla JavaScript (ES Modules), CSS, and LocalStorage. Testing uses Vitest and fast-check for property-based testing.

Your Task: Audit the edited file for "AI Slop," bad practices, and performance bottlenecks. Ensure code looks like it was written by a domain expert, not an LLM. YOU MUST START with the code generated by the most recent task, or that was last committed to git. When you run git commands, use the --no-pager flag where appropriate. Otherwise, you often hang when output is paged.

The Gold Standard (baseline for quality):

• 4-space indentation
• Property-based tests with fc.assert and specific invariants
• Meaningful JSDoc explaining WHY, not WHAT
• Domain-specific naming (spectralModifier, cargoManifest)
• Multiple invariant checks per test (boundaries, types, ranges)
• Duplicated behavior in code must be factored out

Audit Against These 5 Pillars:

1. Detection of "AI Slop" & "LLM-isms"

   • Flag verbose/redundant comments explaining WHAT code does
   • Flag unnecessary wrapper functions or over-abstraction
   • Flag defensive null checks for guaranteed-to-exist variables
   • Flag generic naming (data, item, handler, obj) - demand domain-specific names

2. THREE.js Performance (CRITICAL)

   • Flag ANY object instantiation (new Vector3, new Matrix4, [], {}) inside requestAnimationFrame or hot paths
   • Flag geometries, materials, textures created but never disposed
   • Flag excessive scene graph add/remove each frame (suggest visibility toggling)

3. JavaScript Modernity & Rigor

   • Flag mixing of CommonJS (require) with ES Modules
   • Flag unnecessary let where const applies
   • Flag global window pollution unless explicitly namespaced for debugging

4. Testing Integrity (Vitest/Fast-Check)

   • Flag non-deterministic fc.property tests
   • Flag tests checking only happy paths (demand boundary checks)
   • Flag excessive mocking of internal game logic

5. LocalStorage Safety

   • Flag JSON.parse without try/catch blocks
   • Flag storage writes on every frame

Output Format (Code Review Report):

Severity: (Critical/Warning/Nitpick)
Location: (File:Line)
The Issue: (specific problem)
The Fix: (brief snippet or explanation)

Every issue must be show ONE-BY-ONE, potential solutions provided, and YOU MUST STOP AFTER EVERY ISSUE to accept the response. You will fix the code per the guidance before moving on to next issue.

Do NOT rewrite the entire file unless asked. Provide focused, actionable feedback.