feat: implement new claude skills and workflow

.claude/skills/incoherence/CLAUDE.md

@@ -0,0 +1,24 @@
+# skills/incoherence/
+
+## Overview
+
+Incoherence detection skill using parallel agents. IMMEDIATELY invoke the
+script -- do NOT explore first.
+
+## Index
+
+| File/Directory           | Contents          | Read When          |
+| ------------------------ | ----------------- | ------------------ |
+| `SKILL.md`               | Invocation        | Using this skill   |
+| `scripts/incoherence.py` | Complete workflow | Debugging behavior |
+
+## Key Point
+
+The script IS the workflow. Three phases:
+
+- Detection (steps 1-12): Survey, explore, verify candidates
+- Resolution (steps 13-15): Interactive AskUserQuestion prompts
+- Application (steps 16-21): Apply changes, present final report
+
+Resolution is interactive - user answers structured questions inline. No manual
+file editing required.

.claude/skills/incoherence/SKILL.md

@@ -0,0 +1,37 @@
+---
+name: incoherence
+description: Detect and resolve incoherence in documentation, code, specs vs implementation.
+---
+
+# Incoherence Detector
+
+When this skill activates, IMMEDIATELY invoke the script. The script IS the
+workflow.
+
+## Invocation
+
+```bash
+python3 scripts/incoherence.py \
+  --step-number 1 \
+  --total-steps 21 \
+  --thoughts "<context>"
+```
+
+| Argument        | Required | Description                               |
+| --------------- | -------- | ----------------------------------------- |
+| `--step-number` | Yes      | Current step (1-21)                       |
+| `--total-steps` | Yes      | Always 21                                 |
+| `--thoughts`    | Yes      | Accumulated state from all previous steps |
+
+Do NOT explore or detect first. Run the script and follow its output.
+
+## Workflow Phases
+
+1. **Detection (steps 1-12)**: Survey codebase, explore dimensions, verify
+   candidates
+2. **Resolution (steps 13-15)**: Present issues via AskUserQuestion, collect
+   user decisions
+3. **Application (steps 16-21)**: Apply resolutions, present final report
+
+Resolution is interactive - user answers structured questions inline. No manual
+file editing required.