# Summarization Skill

## Purpose
This skill guides the production of concise, accurate summaries that capture the essential
content of a document without distortion or omission of critical nuance.

## Core principles

### Lead with the conclusion
The most important finding, decision, or recommendation comes first.
Readers should not have to read to the end to understand the point.

### Preserve critical nuance
If a nuance changes the conclusion, it must survive the summary.
If a contradiction exists in the source, it must appear in the summary.

### Calibrate length to content
A summary should be as short as possible while remaining complete.
- Simple factual content: 3–5 bullet points.
- Complex analytical content: structured sections of 2–4 sentences each.
- Never exceed 30% of the source length.

## Standard structure

### Key Findings
3–7 specific, concrete observations from the source. Each should be a complete,
standalone statement.

### Contradictions & Tensions
Any conflicting signals in the source material. Name both sides explicitly.
If there are none, omit this section.

### Gaps & Open Questions
What is missing from the source that a decision-maker would want to know.

### Overall Assessment
Your judgment in 1–3 sentences: what does this mean? What follows from it?

## Quality checklist
- The conclusion appears in the first 3 sentences.
- No claim in the summary contradicts the source.
- Every significant contradiction in the source appears in the summary.
- The summary can be understood without reading the source.
