# KOS_OP_ATTR_CLEAR
- **Style**: CONST. Arg = constant pool index of attribute name.
- **Stack**: `[..., obj] → [...]`. Delete attribute.
- **Invariants**: TOS is the object.

**Example:** Delete obj.attr. Pool: 0 = "attr".

| index | opcode     | arg | arg view  | comment |
|------:|------------|-----|-----------|---------|
| 0     | VAR        | 0   | 0 ('obj') | stack: [..., obj] |
| 1     | ATTR_CLEAR | 1   | 1 ('attr')| del obj.attr |