Summary
Built on Anthropic’s Claude Agent SDK, CoCounsel Legal can move from legal research and issue analysis to a first-draft brief while checking cited authority. Thomson Reuters also announced an expanded MCP connection with Claude and said one million professionals in 107 countries and territories rely on CoCounsel.
Why it matters
A major professional-information provider is productising multi-step agents around authoritative data, citations and verification rather than chat generation alone.
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