Summarization

This skill enables an AI agent to condense long-form text into clear, accurate summaries. The agent supports multiple summarization strategies — extractive (selecting key sentences verbatim), abstractive (rewriting in new words), hierarchical (layered summaries at different detail levels), and multi-document (synthesizing across several sources). The skill is designed for technical documents, meeting notes, research papers, articles, and any text where readers need the core information without reading the full content.

Workflow

Analyze the Input: Determine the type, length, and structure of the source material. Identify whether it is a single document or multiple documents, whether it has clear sections (headings, chapters) or is unstructured prose, and what domain it belongs to. This determines which summarization strategy to apply.
Select the Summarization Strategy: Choose the approach best suited to the input and the user's needs. Use extractive summarization for factual or legal texts where exact wording matters. Use abstractive summarization for general content where readability and brevity are priorities. Use hierarchical summarization when the user needs both a one-line TLDR and a detailed breakdown. Use multi-document summarization when synthesizing across several inputs.
Identify Key Information: Regardless of strategy, identify the core claims, findings, decisions, action items, and supporting data in the source. Rank information by importance using signals like: position in the document (introductions and conclusions carry weight), frequency of mention, explicit markers ("importantly," "in conclusion"), and relevance to the user's stated purpose.
Generate the Summary: Produce the summary at the requested length and detail level. Preserve factual accuracy — never introduce information not present in the source. Maintain the source's logical structure. For hierarchical summaries, produce three tiers: a one-sentence TLDR, a short paragraph (3-5 sentences), and a detailed section-by-section breakdown.
Verify Faithfulness: Compare the summary against the source to ensure no facts are distorted, no critical information is omitted, and no hallucinated content is introduced. Check that numerical data, proper nouns, and causal claims are accurate.

Usage

Provide the agent with the text to summarize and optionally specify: the desired length (one-sentence, short, medium, detailed), the strategy (extractive, abstractive, hierarchical), or a specific focus area.