AnalysisAI AgentsOctober 17, 2026

Simon Willison tests Claude Code "Ultracode" mode to build a SPARQL extension for SQLite

Read original source →simonwillison.net

Claude Code for web ran over 12 hours in Ultracode mode, generating a network of subagents via JavaScript dynamic workflows, to produce sparqlite — a SPARQL 1.1 implementation in Rust inside SQLite. Willison says reviewing the code isn't remotely feasible and he's unsure what to do with the result.

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