# Conversion Issues

> Investigate and fix model conversion issues in OpenVINO Frontends (ONNX, PyTorch) — triage, debugging, accuracy comparison, and pre-submission verification.

- Skill: `openvinotoolkit/conversion-issues` (Agent Skill, multi-file: 3 files)
- Install (CLI): `npx skillmds@latest add openvinotoolkit/conversion-issues`
- Raw SKILL.md: https://api.skillmd.com/api/skills/openvinotoolkit/conversion-issues/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: openvinotoolkit (https://skillmd.com/u/openvinotoolkit)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/openvinotoolkit/conversion-issues

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# Agent Skill: Investigate and Fix Frontend Conversion Issues

## Goal
Diagnose and fix issues where models fail to convert to OpenVINO IR or produce incorrect inference results through an OpenVINO frontend.

## Framework-Specific Workflows

Each frontend has its own detailed investigation workflow. Read the one matching the target framework:

| Frontend | Skill file | What it covers |
|---|---|---|
| **ONNX** | [onnx.md](onnx.md) | Triage (unsupported op / conversion bug / shape-type / opset gap), ORT baseline comparison, translator debugging, `.prototxt` test models, C++ GTest, pre-submission checklist |
| **PyTorch** | [pytorch.md](pytorch.md) | Triage (unsupported op / tracing mode / inplace / normalize-step), TorchScript vs torch.export identification, layer test debugging, pre-submission checklist |

## Related Skills (adding new ops)

| Frontend | Skill file | When to use |
|---|---|---|
| ONNX | [add-fe-op/onnx.md](../add-fe-op/onnx.md) | Implementing a new ONNX op translator from scratch |
| PyTorch | [add-fe-op/pytorch.md](../add-fe-op/pytorch.md) | Implementing a new PyTorch op translator from scratch |

## Notes

- Always verify the model works with the framework's reference runtime (ONNX Runtime / PyTorch) before investigating OpenVINO code.
- Prefer minimal, root-cause fixes over broad refactors.
- Every fix needs a test and must pass the full frontend test suite.