brainstorm-mcp v1.4.0 Adds API-Key-Free Multi-Model Debate via Host Agents

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Developer tool brainstorm-mcp, which facilitates structured multi-model AI debates, released version 1.4.0 on March 24, 2026, introducing a 'hosted mode' that requires no external API keys. Previously, users running Claude Code had no usable keys because the server only supported non-Anthropic providers, creating unnecessary onboarding friction. In hosted mode, the server never calls any model API directly; instead, it constructs debate prompts and returns them to the host, which spawns its own sub-agents to generate responses. Mode selection is automatic based on whether model names include a provider prefix, requiring no additional configuration flags. The update also added context injection, multiple debate styles, and a structured synthesis format to close each debate session.

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