Agent skill · research science · sundial-org
internet-lookup-verifier
Verify information by performing an internet lookup before answering questions.
Why this skill is useful
Adds the ability to perform real-time internet searches and extract verified information from multiple sources, which the AI cannot do on its own.
What it needs
About 1k tokens when loaded. Last updated 2026-03-07. 639 stars on the source repository.
What this skill does
Internet Lookup Verifier Purpose When a user asks a factual question, this skill performs an online search to confirm the answer and returns a concise verified response. It ensures that the assistant’s reply is backed by current, reliable sources. How it works 1. Trigger – The skill activates when the system prompt or another skill signals a need for verification. Typically this happens before answering a question that contains keywords like fact, true/false, verify, or source. 2. Search – Uses the websearch tool to retrieve up to 5 relevant results (default 3). The query is the user’s question or a re‑phrased version suitable for search engines. 3. Extract – From each result, the skill pulls the title, URL and snippet. If needed, it can fetch the full page with webfetch for deeper analysis. 4. Evaluate – The assistant checks that at least one source explicitly supports the answer. If sources disagree or none are found, it reports uncertainty. 5. Respond – Returns a short verified answer followed by a list of URLs (and optionally snippets) that back the claim. Usage example User: Is the capital of Australia Canberra? Assistant (using this skill): Yes, Canberra is the capital of Australia. Source: https://www.britannica.com/place/Canberra-Australia Limitations Relies on the quality of public search results. May not handle niche or very new information if it hasn’t indexed yet. Does not guarantee 100 % accuracy; it only indicates that sources support the claim. Extensibility Add a references/ folder with detailed guidelines for interpreting ambiguous results or handling conflicting sources. The skill can be extended to use more advanced NLP techniques for source credibility scoring.
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills sundial-org/internet-lookup-verifier