UltraContext – open-source shared context layer for coding agents
Real-time context sync across Claude Code, Codex, Cursor—solves actual agent isolation.

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Cursor Analytics · Sourcegraph Cody · Warp
Real-time context sync across Claude Code, Codex, Cursor—solves actual agent isolation.
Stops AI agents from forgetting requirements by writing decisions to locked files.
AGENTS.md with retrieval discipline — Cursor rules and Continue.dev already provide similar context.
Slash agent token costs 164x with hook reducers and persistent daemon state.
Tree-sitter + SQLite graph reduces agent context 74% while staying entirely local.
Decision memory with enforceable context beats Cursor's built-in context features.