Comparison
Drive structured comparison: entities across dimensions, or sources against each other.
When to use
- A/B/-C questions: "X vs Y vs Z" across cost, features, support, adoption.
- Choosing between products, libraries, approaches, or positions.
- Weighing two sources' reliability when they conflict.
Tools used
compare_entities—entitieslist, optionaldimensions,limitper entity (default 4).compare_sources— directly analyze/compare source URLs.
Workflow
- Fix the entity set and the dimensions that matter (be explicit — the comparison is only as fair as its dimensions).
compare_entities(orcompare_sourceswhen you have the URLs).- Keep each entity's facts sourced; flag where evidence is missing.
- Conclude per dimension, not with a single winner label unless supported.
Input schema
{ "entities": "list[str]", "dimensions": "list[str]", "limit": "int" }
{ "urls": "list[str]" }
Output schema
{ "matrix": "object", "notes": "list[str]" }
Security
Comparisons invite selection bias; cover the same dimensions for every entity and show the evidence for each cell.
Related skills
competitive-research, web-search, source-analysis, evidence-extraction