Agent skill

Modal GPU

by benchflow-ai in benchflow-ai/skillsbench

Run Python code on cloud GPUs using Modal serverless platform.

Apache-2.0Auto-check passedBackend & APIs

Install Modal GPU

skills CLI
$ npx skills add benchflow-ai/skillsbench --skill modal-gpu -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install benchflow-ai/skillsbench modal-gpu --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/benchflow-ai/skillsbench.git skills-src && mkdir -p .claude/skills && cp -r skills-src/tasks-extra/mhc-layer-impl/environment/skills/modal-gpu .claude/skills/modal-gpu && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
modal-gpu
GitHub stars
1.8k
Token cost
~657 tokens
SKILL.md length
143 words
Files
6 (incl. references)
Skills in repo
189
Repo updated
First seen
Licence
Apache-2.0

At a glance

Run Python code on cloud GPUs using Modal serverless platform.

  • You need A100/T4/A10G GPU access for training ML models
  • SKILL.md covers Overview, Quick Reference, Installation and Minimal Example, plus 4 more sections
  • Calls modal and pip
  • Tasks that involve Serverless

What it does

Modal GPU is an agent skill from benchflow-ai/skillsbench. Run Python code on cloud GPUs using Modal serverless platform. Use when you need A100/T4/A10G GPU access for training ML models. Covers Modal app setup, GPU selection, data downloading inside functions, and result handling.

Its SKILL.md is about 660 tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including reference files (for example `references/common-issues.md`, `references/data-download.md` and `references/getting-started.md`).

It sits in Backend & APIs, covering Serverless and Machine learning. It works with Python. The repository describes itself as: SkillsBench evaluates how well skills work and how effective agents are at using them. The licence is Apache-2.0.

When your agent uses it

  • You need A100/T4/A10G GPU access for training ML models
  • Tasks that involve Serverless
  • Tasks that involve Machine learning

Example prompts

  • “/modal-gpu”

Requirements

  • Python 3

What it can do on your machine

Read from SKILL.md and the folder at commit 9a1f4dd. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • modal
    • pip

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Links to these hosts (documentation or services it may open):

    • modal.com
    • github.com

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Modal GPU loads about 657 tokens when it runs, and up to ~3.5k if it reads all its reference files. Until then it costs about 58 tokens; SKILL.md has 143 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~58
When it runs · the whole SKILL.md, loaded when a task matches
~657
With references · SKILL.md plus every file in references/, read only if the agent opens them
~3.5k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from benchflow-ai/skillsbench at commit 9a1f4dd, republished under its Apache-2.0 licence (© benchflow-ai). 143 words, ~657 tokens.

Download SKILL.mdSave it as .claude/skills/modal-gpu/SKILL.md (or your agent's skills folder). This skill also uses 5 other files; get the full folder from GitHub.
name
modal-gpu
description
Run Python code on cloud GPUs using Modal serverless platform. Use when you need A100/T4/A10G GPU access for training ML models. Covers Modal app setup, GPU selection, data downloading inside functions, and result handling.

Modal GPU Training

Overview

Modal is a serverless platform for running Python code on cloud GPUs. It provides:

  • Serverless GPUs: On-demand access to T4, A10G, A100 GPUs
  • Container Images: Define dependencies declaratively with pip
  • Remote Execution: Run functions on cloud infrastructure
  • Result Handling: Return Python objects from remote functions

Two patterns:

  • Single Function: Simple script with @app.function decorator
  • Multi-Function: Complex workflows with multiple remote calls

Quick Reference

TopicReference
Basic StructureGetting Started
GPU OptionsGPU Selection
Data HandlingData Download
Results & OutputsResults
TroubleshootingCommon Issues

Installation

bash
pip install modal
modal token set --token-id <id> --token-secret <secret>

Minimal Example

python
import modal

app = modal.App("my-training-app")

image = modal.Image.debian_slim(python_version="3.11").pip_install(
    "torch",
    "einops",
    "numpy",
)

@app.function(gpu="A100", image=image, timeout=3600)
def train():
    import torch
    device = torch.device("cuda")
    print(f"Using GPU: {torch.cuda.get_device_name(0)}")

    # Training code here
    return {"loss": 0.5}

@app.local_entrypoint()
def main():
    results = train.remote()
    print(results)

Common Imports

python
import modal
from modal import Image, App

# Inside remote function
import torch
import torch.nn as nn
from huggingface_hub import hf_hub_download

When to Use What

ScenarioApproach
Quick GPU experimentsgpu="T4" (16GB, cheapest)
Medium training jobsgpu="A10G" (24GB)
Large-scale traininggpu="A100" (40/80GB, fastest)
Long-running jobsSet timeout=3600 or higher
Data from HuggingFaceDownload inside function with hf_hub_download
Return metricsReturn dict from function

Running

bash
# Run script
modal run train_modal.py

# Run in background
modal run --detach train_modal.py

External Resources

© benchflow-ai, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 5 other files (references) in tasks-extra/mhc-layer-impl/environment/skills/modal-gpu of benchflow-ai/skillsbench.

  • SKILL.md
  • references/common-issues.md
  • references/data-download.md
  • references/getting-started.md
  • references/gpu-selection.md
  • references/results.md

Open the folder on GitHubat commit 9a1f4dd

Compare with similar skills

Modal GPU next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Modal GPU compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Modal GPU this skillbenchflow-ai/skillsbench1.8k—~657Automated safety check: PassApache-2.0
Modaldavila7/claude-code-templates32k7 repos~2.6kAutomated safety check: PassMIT
ModalK-Dense-AI/scientific-agent-skills48k1 repos~4.5kAutomated safety check: NotesApache-2.0
ModalBioTender-max/awesome-bio-agent-skills199—~3.1kAutomated safety check: NotesApache-2.0
AWS Serverless Edazxkane/aws-skills3674 repos~3.2kAutomated safety check: PassMIT
Modal Serverless GPUOrchestra-Research/AI-Research-SKILLs13k5 repos~2.1kAutomated safety check: PassMIT

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Works with

Categories

Questions about Modal GPU

What does Modal GPU do?

Run Python code on cloud GPUs using Modal serverless platform. Modal GPU is an agent skill from benchflow-ai/skillsbench. Run Python code on cloud GPUs using Modal serverless platform.

When should I use Modal GPU?

Modal GPU fits situations like: you need A100/T4/A10G GPU access for training ML models; tasks that involve Serverless; tasks that involve Machine learning.

How do I install Modal GPU in Claude Code?

Run `npx skills add benchflow-ai/skillsbench --skill modal-gpu -a claude-code`. Or copy the skill folder (tasks-extra/mhc-layer-impl/environment/skills/modal-gpu in benchflow-ai/skillsbench) into .claude/skills/modal-gpu in your project. Claude Code loads it when a task matches its description.

How do I install Modal GPU in Codex?

Run `npx skills add benchflow-ai/skillsbench --skill modal-gpu -a codex`. Or copy the skill folder (tasks-extra/mhc-layer-impl/environment/skills/modal-gpu in benchflow-ai/skillsbench) into .agents/skills/modal-gpu in your project. Codex loads it when a task matches its description.

Can I use Modal GPU in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add benchflow-ai/skillsbench --skill modal-gpu -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/modal-gpu, .gemini/skills/modal-gpu, .github/skills/modal-gpu and .opencode/skills/modal-gpu in your project.

What does Modal GPU need to run?

Going by SKILL.md and its folder, Modal GPU needs the command-line tools its instructions call (modal and pip). Our summary lists: Python 3.

Does Modal GPU access the network?

SKILL.md names 2 domains. As links in the text: modal.com and github.com. This is read from the text; nothing was executed.

Is Modal GPU safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Modal GPU use?

Modal GPU is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Modal GPU use?

About 657 tokens (SKILL.md is roughly 2.6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 2.8k tokens, read only when the agent opens those files.

What are the alternatives to Modal GPU?

Skills that share tags, products or a category with Modal GPU: Modal (davila7/claude-code-templates, 32k stars), Modal (K-Dense-AI/scientific-agent-skills, 48k stars), Modal (BioTender-max/awesome-bio-agent-skills, 199 stars) and AWS Serverless Eda (zxkane/aws-skills, 367 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Modal GPU?

benchflow-ai (a GitHub organization) maintains it in benchflow-ai/skillsbench, which has 1,834 GitHub stars. The repository holds 189 skills in this directory. The repository was last updated on July 23, 2026.

Source: benchflow-ai/skillsbench on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.