extract-facts

name	extract-facts
version	1.0.0
description	Extract discrete, verifiable facts from web content with source citations.
allowed_tools	["web_fetch"]
tags	["web","extraction","facts","research"]

Extract Facts

Given web content or a URL, extract a set of discrete, independently verifiable facts. Each fact must be atomic (one claim per fact), attributed to its source, and accompanied by a confidence indicator.

Procedure

1. Receive source content (raw text, URL, or list of URLs).
2. If URLs are provided, fetch each one using web_fetch.
3. Parse the content and identify factual statements. Distinguish:
   • Hard facts: specific figures, dates, names, events with a clear source
   • Soft facts: general statements of consensus that are widely accepted
   • Opinion/editorial: explicitly exclude these
4. For each hard fact, record:
   • The fact statement (one sentence, active voice)
   • The source URL
   • The source date
   • A confidence level: high, medium, or low
5. Cross-check facts against other sources when possible. Upgrade confidence if confirmed by a second independent source.
6. Return the extracted facts as a structured list.

Output Format

Fact 1:
  Statement: <one-sentence factual claim>
  Source: <url>
  Date: <publication date or "unknown">
  Confidence: high | medium | low
  Notes: <optional context or caveat>

Fact 2:
  ...

Quality Rules

• Each fact must be independently verifiable from its cited source.
• Avoid compound facts; split "X happened in Y and caused Z" into two facts.
• Mark speculation or prediction as Confidence: low with a note.
• If a URL cannot be fetched, record the fact as Confidence: low with a note indicating the source was inaccessible.
• Do not include the agent's own inferences as facts; attribute all claims to an external source.