pg-aiguide
AI-optimized PostgreSQL expertise for coding assistants
pg-aiguide helps AI coding tools write dramatically better PostgreSQL code. It provides:
- Semantic search across the official PostgreSQL manual (version-aware)
- AI-optimized “skills” — curated, opinionated Postgres best practices used automatically by AI agents
- Extension ecosystem docs, starting with TimescaleDB, with more coming soon
Use it either as:
- a public MCP server that can be used with any AI coding agent, or
- a Claude Code plugin optimized for use with Claude's native skill support.
⭐ Why pg-aiguide?
AI coding tools often generate Postgres code that is:
- outdated
- missing constraints and indexes
- unaware of modern PG features
- inconsistent with real-world best practices
pg-aiguide fixes that by giving AI agents deep, versioned PostgreSQL knowledge and proven patterns.
See the difference
https://github.com/user-attachments/assets/5a426381-09b5-4635-9050-f55422253a3d
Video Transcript
Prompt given to Claude Code:
Please describe the schema you would create for an e-commerce website two times, first with the tiger mcp server disabled, then with the tiger mcp server enabled. For each time, write the schema to its own file in the current working directory. Then compare the two files and let me know which approach generated the better schema, using both qualitative and quantitative reasons. For this example, only use standard Postgres.
Result (summarized):
- 4× more constraints
- 55% more indexes (including partial/expression indexes)
- PG17-recommended patterns
- Modern features (
GENERATED ALWAYS AS IDENTITY,NULLS NOT DISTINCT) - Cleaner naming & documentation
Conclusion: pg-aiguide produces more robust, performant, maintainable schemas.
🚀 Quickstart
pg-aiguide is available as a public MCP server:
https://mcp.tigerdata.com/docs
Manual MCP configuration using JSON
{
"mcpServers": {
"pg-aiguide": {
"url": "https://mcp.tigerdata.com/docs"
}
}
}
Or it can be used as a Claude Code Plugin:
claude plugin marketplace add timescale/pg-aiguide
claude plugin install pg@aiguide
Install by environment
One-click installs
Claude Code
This repo serves as a claude code marketplace plugin. To install, run:
claude plugin marketplace add timescale/pg-aiguide
claude plugin install pg@aiguide
This plugin uses the skills available in the skills directory as well as our
publicly available MCP server endpoint hosted by TigerData for searching PostgreSQL documentation.
Codex
Run the following to add the MCP server to codex:
codex mcp add --url "https://mcp.tigerdata.com/docs" pg-aiguide
Cursor
One-click install:
Or add the following to .cursor/mcp.json