UltraContext: open-source infra that syncs context across Claude Code, Codex and teammates
tom_doerr · x · 2026-09-10
UltraContext is an open-source (Apache-licensed, 289 stars) context infrastructure for AI agents: it auto-captures context from Claude Code and Codex in real time and makes it available to all agents and teammates. You can ask Codex to 'grab the last plan Claude Code made and implement it,' or query what a teammate's agent is shipping right now—solving the 'what Claude Code knows, Codex doesn't' gap. Monorepo includes AGENTS.md/CLAUDE.md configs.
More from coding & agent
- Prerender Buddy MCP server lets coding assistants audit crawler accessibility — kopachl · 2026-09-10
- OilPriceAPI ships MCP server: query 40+ energy commodities via natural language — modelcontextprotocol · 2026-09-10
- Perspective AI turns static forms into adaptive AI conversations via MCP — modelcontextprotocol · 2026-09-10
- Should half-built agents touch your real Gmail? Devs weigh test-account pain — aofu_dev · 2026-09-10
- QuantMind: open-source agent-native framework turns papers, news and filings into structured quant finance knowledge — tom_doerr · 2026-09-10
- Illustration web-app built on tldraw: sketch, pick a style, generate code, refine — threepointone · 2026-09-10