diff --git a/.agents/rules/antigravity-rtk-rules.md b/.agents/rules/antigravity-rtk-rules.md
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-# RTK - Rust Token Killer (Google Antigravity)
-
-**Usage**: Token-optimized CLI proxy for shell commands.
-
-## Rule
-
-Always prefix shell commands with `rtk` to minimize token consumption.
-
-Examples:
-
-```bash
-rtk git status
-rtk cargo test
-rtk ls src/
-rtk grep "pattern" src/
-rtk find "*.rs" .
-rtk docker ps
-rtk gh pr list
-```
-
-## Meta Commands
-
-```bash
-rtk gain              # Show token savings
-rtk gain --history    # Command history with savings
-rtk discover          # Find missed RTK opportunities
-rtk proxy <cmd>       # Run raw (no filtering, for debugging)
-```
-
-## Why
-
-RTK filters and compresses command output before it reaches the LLM context, saving 60-90% tokens on common operations. Always use `rtk <cmd>` instead of raw commands.