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Security2026-03-23 · source-backed
Sondera intercepts every shell command, file operation, and web request from coding agents and adjudicates them with Cedar — the same formal policy engine used by AWS. Unlike probabilistic LLM guardrails, these rules are deterministic. Rust binaries, stateful trajectory stores, works across Claude Code, Cursor, GitHub Copilot, and Gemini CLI. Presented at Unprompted 2026 with a live demo blocking rm -rf.
Each link below shares sources, entities, or timing with this story.
Cursor benchmarked against Codex / Shared entities / Same source domain / Shared topic / What happened next / Tension
Linked by a graph relationship (Cursor benchmarked against Codex); both cover Claude Code, Cursor, Gemini CLI, Rust; reported by the same outlet (github.com).
RTK supports Cursor / Shared entities / Same source domain / Shared topic / What happened next
Linked by a graph relationship (RTK supports Cursor); both cover Claude Code, Cursor, Gemini CLI, Rust; reported by the same outlet (github.com).
Cursor competes with GitHub Copilot / Shared entities / Same source domain / Shared topic / What happened next
Linked by a graph relationship (Cursor competes with GitHub Copilot); both cover Claude Code, Cursor, Gemini CLI, GitHub Copilot; reported by the same outlet (github.com).
Cursor supports Claude / Shared entities / Same source domain / Shared topic / What happened next
Linked by a graph relationship (Cursor supports Claude); both cover Claude Code, Cursor, Gemini CLI, LLM; reported by the same outlet (github.com).
RTK supports Cursor / Shared entities / Same source domain / Shared topic / What happened next
Linked by a graph relationship (RTK supports Cursor); both cover Claude Code, Cursor, LLM, Rust; reported by the same outlet (github.com).
Cursor competes with GitHub Copilot / Shared entities / Same source domain / Shared topic / What happened next / Tension
Linked by a graph relationship (Cursor competes with GitHub Copilot); both cover Claude Code, Cursor, Gemini CLI, GitHub Copilot; reported by the same outlet (github.com).
RTK supports Cursor / Shared entities / Same source domain / Shared topic
Linked by a graph relationship (RTK supports Cursor); both cover Claude Code, Cursor, Gemini CLI, LLM; reported by the same outlet (github.com).
Cursor competes with GitHub Copilot / Shared entities / Shared topic / What happened next
Linked by a graph relationship (Cursor competes with GitHub Copilot); both cover Claude Code, Cursor, Gemini CLI, GitHub Copilot; overlapping topics (agent, claude, code, coding, copilot).