update-style-guide

Update Style Guide

Incrementally update the $1 style guide with patterns from new articles at $2.

Step 1: Validate Existing Style Guide

Before proceeding:

• Verify style guide exists at brands/$1/style-guide.md
  • If missing: Error and suggest running /generate-style-guide $1 [source]
• Read and parse existing style guide
• Extract current rules, preferences, and exceptions from all 8 sections
• Note current version number (e.g., "1.0", "1.1")

Step 2: Collect New Articles

• Read all markdown files from $2
• Verify at least 3 new articles provided
  • If fewer than 3: Warn that updates may be less reliable
• Check articles aren't already in brands/$1/source-articles/ (avoid duplicates)
• If duplicates found: Warn user and exclude duplicates from analysis

Step 3: Analyze New Patterns

Launch style guide generator agent (Opus model) with:

• Existing style guide content
• New article contents
• Special instruction: "Compare new articles against existing rules. Identify:
  1. NEW patterns not covered by existing rules
  2. Patterns that CONTRADICT existing rules
  3. Patterns that CONFIRM existing rules (strengthen confidence)"

The agent should categorize findings:

• New Rules: Patterns appearing in 95%+ of new articles that aren't in current guide
• Rule Modifications: Existing rules that new articles consistently contradict
• Confirmed Rules: Existing rules that new articles follow (no action needed)
• Edge Cases: Unusual patterns that may warrant adding exceptions

Step 4: Generate Update Report

Create report showing proposed changes:

# Style Guide Update Report: $1

**Current Version:** [X.X]
**Proposed Version:** [X.Y]
**New Articles Analyzed:** [number]
**Date:** [current date]

---

## Proposed Changes

### New Rules to Add

**Section [X] - [Section Name]:**
- **New Rule:** [description]
  - **Evidence:** Found in [X]/[Y] new articles
  - **Example:** [example from articles]

### Rules to Modify

**Section [X] - [Section Name]:**
- **Current Rule:** [existing text]
- **Proposed Change:** [new text]
- **Reason:** New articles show [pattern] in [X]/[Y] cases

### Rules Confirmed (No Changes)

- Section 1: [X] rules confirmed
- Section 2: [X] rules confirmed
- ...

### Potential Exceptions to Add

- **Rule:** [existing rule]
- **Exception:** [new exception based on articles]
- **Example:** [example showing valid exception]

---

## Summary

- New rules to add: [X]
- Rules to modify: [X]
- Rules confirmed: [X]
- Exceptions to add: [X]