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  "markdown": "Original reference-server contributor; MCP co-creator; former Anthropic employee.\n\nJustin Spahr-Summers co-created the Model Context Protocol with David Soria Parra as an engineer at Anthropic, which announced it in November 2024. The protocol's governance page lists him as co-inventor and lead maintainer emeritus.\n\n- LinkedIn: https://www.linkedin.com/in/jspahrsummers/\n\n## What Justin builds\n\n- [PostgreSQL (archived MCP reference server)](https://www.anchorterminal.com/tools/postgres-reference-server-archived.md), graded F, 18.6/100, in Databases \u0026 files. Archived PostgreSQL reference MCP server for SQL queries. Its read-only transaction wrapper has a documented bypass. Original reference-server contributor; MCP co-creator; former Anthropic employee, founder, researched 2026-10-28.\n- [Puppeteer (archived MCP reference server)](https://www.anchorterminal.com/tools/puppeteer-reference-server-archived.md), graded F, 30.8/100, in Browser automation. The original browser-automation reference server, driving Chrome through Puppeteer with screenshots and JavaScript evaluation. Original reference-server contributor; MCP co-creator; former Anthropic employee, founder, researched 2026-10-28.\n\n## Works with\n\n- [David Soria Parra](https://www.anchorterminal.com/people/david-soria-parra-2/), Co-creator of Model Context Protocol; lead maintainer\n\n## Questions\n\n### Who is Justin Spahr-Summers?\n\nJustin Spahr-Summers co-created the Model Context Protocol with David Soria Parra as an engineer at Anthropic, which announced it in November 2024. The protocol's governance page lists him as co-inventor and lead maintainer emeritus.\n\n### What does Model Context Protocol (archived) make?\n\nAnchor Terminal lists PostgreSQL (archived MCP reference server) and Puppeteer (archived MCP reference server) from Model Context Protocol (archived). Archived PostgreSQL reference MCP server for SQL queries. Its read-only transaction wrapper has a documented bypass.\n\n### How are Justin's tools graded?\n\nPostgreSQL (archived MCP reference server) is graded F, 18.6 out of 100; Puppeteer (archived MCP reference server) is graded F, 30.8 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.\n\n## Sources\n\n- https://github.com/modelcontextprotocol/servers-archived/commits/main/src/postgres\n- https://github.com/jspahrsummers\n- https://jspahrsummers.com\n- https://www.linkedin.com/in/jspahrsummers/\n- https://github.com/modelcontextprotocol/servers-archived\n- https://github.com/modelcontextprotocol/servers-archived/tree/main/src/postgres\n- https://en.wikipedia.org/wiki/Model_Context_Protocol\n- https://modelcontextprotocol.io/community/governance\n- https://github.com/modelcontextprotocol/servers-archived/commits/main/src/puppeteer\n- https://github.com/modelcontextprotocol/servers-archived/tree/main/src/puppeteer\n\nNot the same person as [Justin Spahr-Summers](https://www.anchorterminal.com/people/justin-spahr-summers/) (MCP project (reference servers)), as far as the research can tell.\n\nThese are the people building the tools we list, named for their public role in the company or project behind a listing, from public pages, with the date it was researched. They don't work for Anchor Terminal (our own team is on the about page, /about/#author). We show public roles, public profiles and what the listing pages show, nothing private. To correct something, send an about or a photo, or have a page removed, write to privacy@anchorterminal.com.\n",
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