Executive summary for busy decision-makers

Write an executive summary of the document below for {{reader}}.

What the document is: {{doc_type}}
Decision or action the reader needs to take: {{decision}}
Length limit: {{length}}

Document:
{{document}}

Rules:
- Lead with the conclusion or recommendation, then the reasons. Do not follow the document's order.
- Keep the numbers that drive the decision and drop the rest. Do not round or alter figures.
- State risks, costs and open questions plainly. Do not make the case sound stronger than the source does.
- Do not add information that is not in the document. If something important is missing, say so under "Gaps".
- Plain language; define any jargon the reader may not know.

Output format:
**Bottom line** (2 sentences)
**Why** (3-5 bullets)
**Risks and unknowns** (2-4 bullets)
**What I need from you** (1-2 lines)
**Gaps in the source** (only if relevant)