# PR-06 — RC Hooks Documentation (No RC Yet)

### Goal

Prepare the VM for RC without implementing it yet.

### Required Changes

* Document which VM instructions are RC-sensitive:

    * `LocalStore`
    * `GateStore`
    * stack pop / drop (if present)
    * frame end / `FrameSync` as safe points

* Document RC rules:

    * retain on handle copy
    * release on overwrite/drop

### Tests

* Documentation test or unit assertion that the RC-sensitive list exists

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## STOP POINT

After PR-06:

* `ir_core` and `ir_vm` are fully decoupled
* Lowering is deterministic and placeholder-free
* VM ISA v0 is defined and stable
* VM runtime work may begin safely

**Any VM changes before this point must be rejected.**