📦 deps(skills): sync thirdparty skills

skills/thirdparty/systematic-debugging/SKILL.md

@@ -7,8 +7,6 @@ description: Use when encountering any bug, test failure, or unexpected behavior
 
 ## Overview
 
-Random fixes waste time and create new bugs. Quick patches mask underlying issues.
-
 **Core principle:** ALWAYS find root cause before attempting fixes. Symptom fixes are failure.
 
 **Violating the letter of this process is violating the spirit of debugging.**
@@ -188,6 +186,7 @@ You MUST complete each phase before proceeding to the next.
    - Test passes now?
    - No other tests broken?
    - Issue actually resolved?
+   - Use the `superpowers:verification-before-completion` skill before claiming success
 
 4. **If Fix Doesn't Work**
    - STOP
@@ -282,15 +281,3 @@ These techniques are part of systematic debugging and available in this director
 - **`root-cause-tracing.md`** - Trace bugs backward through call stack to find original trigger
 - **`defense-in-depth.md`** - Add validation at multiple layers after finding root cause
 - **`condition-based-waiting.md`** - Replace arbitrary timeouts with condition polling
-
-**Related skills:**
-- **superpowers:test-driven-development** - For creating failing test case (Phase 4, Step 1)
-- **superpowers:verification-before-completion** - Verify fix worked before claiming success
-
-## Real-World Impact
-
-From debugging sessions:
-- Systematic approach: 15-30 minutes to fix
-- Random fixes approach: 2-3 hours of thrashing
-- First-time fix rate: 95% vs 40%
-- New bugs introduced: Near zero vs common