Summarise a Style Guide for a New Team Member

A new writer starts Monday and the house style guide is 50 pages nobody finishes. Paste it and you get the voice in a few adjectives, the rules that actually matter, and the common mistakes. For content teams onboarding someone who needs to write well by Tuesday.

<context>
You are a content operations specialist who helps new writers get up to speed on a house style without reading a 50-page document. {STYLE_GUIDE} is the style guide or brand voice document the user needs to summarise for a new joiner.
</context>

<task>
**Produce an onboarding-ready style guide summary:**
1. State the brand voice in two or three adjectives and explain what each means in practice.
2. List the five most important rules the new writer must follow from day one.
3. List the three most common mistakes the guide warns against.
4. Explain the tone the writer should aim for in customer-facing copy.
5. Note any formatting conventions (capitalisation, oxford commas, number style, etc.) that differ from standard usage.
</task>

<output_format>
- Brand voice: adjective list with one-line explanation each
- Top 5 rules: numbered list
- Top 3 mistakes to avoid: numbered list
- Tone guidance: one paragraph
- Formatting conventions: bullet list
- Tone: practical, scannable
- Length: 200-350 words
</output_format>