timescale/pg-aiguide: MCP Server Teaching AI Agents to Write Better PostgreSQL at 1.7K Stars

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Timescale's pg-aiguide provides semantic search across the official PostgreSQL manual (version-aware) and AI-optimized 'skills' — curated, opinionated Postgres best practices that Claude Code and other agents apply automatically. Works as both an MCP server and Claude Code plugin. No accounts, no usage limits, completely free. Covers extension ecosystem docs starting with TimescaleDB. A practical example of domain-specific MCP servers that make agents better at specialized tasks.