1. **Removed the ROUTER profile** from `/crates/executors/default_profiles.json` (lines 14-19)
2. **Verified the changes** with cargo clippy - no warnings or errors
3. **Confirmed frontend compatibility** - linting passed with only existing warnings (no errors)
The ROUTER profile variant that enabled `claude_code_router: true` is no longer available in the default profiles. Users will no longer see "ROUTER" as a profile option for CLAUDE_CODE, but existing users with this configuration will still work due to the migration logic that remains in place.
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