xpu-kernels

Guidance for writing, checking, optimizing, and benchmarking Triton GPU kernels for Intel XPU graphics processors with the Xe-Forge framework.

In plain words
What is it for?
Use it to turn PyTorch operations into Triton kernels, validate them, benchmark them, profile them with VTune, and finalize a selected version.
Why use it?
It gives a repeatable way to compare kernel versions for correctness and speed on Intel GPU hardware.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/huggingface/kernels/xpu-kernels
Any agent
npx skills add huggingface/kernels --skill xpu-kernels
Clone the repo
git clone --depth 1 https://github.com/huggingface/kernels

Made for: Claude Code, Codex.

Per session 85 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,325 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00085 $0.04325
Opus 5 $0.00043 $0.02162
Sonnet 5 $0.00017 $0.00865
Haiku 4.5 $0.00009 $0.00432

Measured 2d ago against content hash 6977662b08c1, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

xpu-kernels scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

The scan reads SKILL.md. This mod also ships 9 executable files (scripts/analyze_kernel.py, scripts/benchmark_kernels.py, scripts/benchmark.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

kernel-builder/skills/xpu-kernels/SKILL.md · 315 lines

How it starts

The opening of the file, as written. The whole thing — 315 lines — stays where its author put it; the contents beside it link to each section on GitHub.

XPU Triton Kernels for Intel GPUs

This skill provides patterns and guidance for developing optimized Triton kernels targeting Intel XPU GPUs (Battlemage/Arc Pro B50). It integrates the Xe-Forge optimization framework — an LLM-driven loop that transforms PyTorch code into fast Triton kernels.

Quick Start

Optimize a Kernel (Xe-Forge Workflow)

The full optimization workflow analyzes a PyTorch baseline, generates Triton kernel variants in a branching trial tree, benchmarks each on XPU hardware, and finalizes the best result.

# 1. Analyze the baseline
python scripts/analyze_kernel.py test_kernels/70_Gemm_Sigmoid_Scaling_ResidualAdd_pytorch.py

# 2. Initialize trial tracking
python scripts/trial_manager.py init 70_Gemm_Sigmoid test_kernels/70_Gemm_Sigmoid_Scaling_ResidualAdd_pytorch.py

# 3. Validate a generated kernel (no GPU needed)
python scripts/validate_triton.py my_kernel.py

# 4. Benchmark correctness + performance
python scripts/benchmark.py test_kernels/70_Gemm_Sigmoid_Scaling_ResidualAdd_pytorch.py my_kernel.py

# 5. Profile with VTune (optional)
python scripts/xpu_profiler.py my_kernel.py

# 6. Finalize best trial
python scripts/trial_manager.py finalize 70_Gemm_Sigmoid optimized_triton.py

Supported Hardware

GPU Architecture XVEs Mem BW Key Feature Verified
Battlemage G21 / Arc Pro B50 Xe2 128 ~500 GB/s Tensor descriptors, GRF 256 Yes

See the Intel XPU Backend for Triton for supported hardware.

When This Skill Applies

Use this skill when:

  • Optimizing PyTorch operations into Triton kernels for Intel XPU
  • Writing GEMM, fused kernels, reductions, or Flash Attention for Intel GPUs
  • Running the Xe-Forge optimization loop (analyze → validate → benchmark → profile → finalize)
  • Benchmarking kernel performance against PyTorch baseline on XPU

Read the full file on GitHub · 315 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 315 lines · 85 tokens per session scan A 6977662b08c1

Subscribe to this mod's changes

xpu-kernels is a skill published in the GitHub repository huggingface/kernels (729 stars, last pushed 5d ago), licensed Apache-2.0. It adds 85 tokens to every session and 4,325 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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