sondera-ai/sondera-coding-agent-hooks: Cedar Policy Language as Cross-Agent Reference Monitor — 168 Stars

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From the 'Hooking Coding Agents with Cedar Policy Language' talk at Unprompted 2026, Sondera provides Rust hook binaries and Cedar policies that intercept every shell command, file operation, and web request across Claude Code, Cursor, Copilot, and Gemini CLI. Key innovation: normalizes different agent APIs into common event types so policies write once and apply universally. Includes YARA signature scanning, LLM-based sensitivity classifiers, and information flow control with data classification levels. 168 stars, early but architecturally novel.