Imported from mrc4tt/CS2_VibeSignatures (.claude/skills/find-CEntitySaveRestoreBlockHandler_PreSave/SKILL.md). Install upstream with npx skills add mrc4tt/CS2_VibeSignatures --skill find-CEntitySaveRestoreBlockHandler_PreSave. Copyright stays with the author.

Find CEntitySaveRestoreBlockHandler_PreSave

Target: CEntitySaveRestoreBlockHandler::PreSave (vfunc) in the module loaded in THIS session.

The old artifact/preprocessor anchors no longer match this build. Use anchors only to locate candidates; derive the artifact from the ACTUAL bytes you read. Produce ONLY this session's platform output. NEVER open another binary.

Method

Resolve the owning class vtable via RTTI (typeinfo-name string -> _ZTI object -> vtable). Identify the slot by xrefs from expected call sites. Slots commonly differ between platforms - never assume identical indices.

Mandatory self-check before emitting

The pipeline re-reads the bytes at your func_va and regenerates func_sig from them - a mismatch aborts the run. Therefore: read the real bytes via IDA MCP, derive the artifact FROM those bytes (wildcard relocated operands as ??), start at the TRUE function head, and only then write the YAML. A mismatch is always a bug in YOUR output.

Output schema (STRICT)

Write CEntitySaveRestoreBlockHandler_PreSave.{platform}.yaml with EXACTLY these fields:

func_name: <TASK>
func_va: "<hex virtual address>"
func_rva: "<hex rva>"
func_size: "<hex size>"
vtable_name: <owning class RTTI name>
vfunc_offset: "<hex vtable byte offset>"
vfunc_index: <decimal slot index>

NEVER include func_sig.

Verification

1. Decompile and confirm the behavior matches the symbol's semantics.
2. Uniqueness: the pattern must match exactly ONE location in the loaded binary.
3. If no candidate can be confirmed, report the shortlist - a skipped symbol is safer than a wrong signature.