Running Workloads on Hugging Face Jobs

Overview

Run any workload on fully managed Hugging Face infrastructure. No local setup required—jobs run on cloud CPUs, GPUs, or TPUs and can persist results to the Hugging Face Hub.

Common use cases:

Data Processing - Transform, filter, or analyze large datasets
Batch Inference - Run inference on thousands of samples
Experiments & Benchmarks - Reproducible ML experiments
Model Training - Fine-tune models (see
```
model-trainer
```
skill for TRL-specific training)
Synthetic Data Generation - Generate datasets using LLMs
Development & Testing - Test code without local GPU setup
Scheduled Jobs - Automate recurring tasks

For model training specifically: See the

model-trainer

skill for TRL-based training workflows.

When to Use This Skill

Use this skill when users want to:

Run Python workloads on cloud infrastructure
Execute jobs without local GPU/TPU setup
Process data at scale
Run batch inference or experiments
Schedule recurring tasks
Use GPUs/TPUs for any workload
Persist results to the Hugging Face Hub

Key Directives

When assisting with jobs:

ALWAYS use
hf_jobs()
MCP tool - Submit jobs using
```
hf_jobs("uv", {...})
```
or
```
hf_jobs("run", {...})
```
. The
```
script
```
parameter accepts Python code directly. Do NOT save to local files unless the user explicitly requests it. Pass the script content as a string to
```
hf_jobs()
```
.
Always handle authentication - Jobs that interact with the Hub require
```
HF_TOKEN
```
via secrets. See Token Usage section below.
Provide job details after submission - After submitting, provide job ID, monitoring URL, estimated time, and note that the user can request status checks later.
Set appropriate timeouts - Default 30min may be insufficient for long-running tasks.

Prerequisites Checklist

Before starting any job, verify:

✅ Account & Authentication

Hugging Face Account with Pro, Team, or Enterprise plan (Jobs require paid plan)
Authenticated login: Check with
```
hf_whoami()
```
HF_TOKEN for Hub Access ⚠️ CRITICAL - Required for any Hub operations (push models/datasets, download private repos, etc.)
Token must have appropriate permissions (read for downloads, write for uploads)

✅ Token Usage (See Token Usage section for details)

When tokens are required:

Pushing models/datasets to Hub
Accessing private repositories
Using Hub APIs in scripts
Any authenticated Hub operations

How to provide tokens:

python

{
    "secrets": {"HF_TOKEN": "$HF_TOKEN"}  # Recommended: automatic token
}

⚠️ CRITICAL: The

$HF_TOKEN

placeholder is automatically replaced with your logged-in token. Never hardcode tokens in scripts.

Token Usage Guide

Understanding Tokens

What are HF Tokens?

Authentication credentials for Hugging Face Hub
Required for authenticated operations (push, private repos, API access)
Stored securely on your machine after
```
hf auth login
```

Token Types:

Read Token - Can download models/datasets, read private repos
Write Token - Can push models/datasets, create repos, modify content
Organization Token - Can act on behalf of an organization

When Tokens Are Required

Always Required:

Pushing models/datasets to Hub
Accessing private repositories
Creating new repositories
Modifying existing repositories
Using Hub APIs programmatically

Not Required:

Downloading public models/datasets
Running jobs that don't interact with Hub
Reading public repository information

How to Provide Tokens to Jobs

Method 1: Automatic Token (Recommended)

python

hf_jobs("uv", {
    "script": "your_script.py",
    "secrets": {"HF_TOKEN": "$HF_TOKEN"}  # ✅ Automatic replacement
})

How it works:

```
$HF_TOKEN
```
is a placeholder that gets replaced with your actual token
Uses the token from your logged-in session (
```
hf auth login
```
)
Most secure and convenient method
Token is encrypted server-side when passed as a secret

Benefits:

No token exposure in code
Uses your current login session
Automatically updated if you re-login
Works seamlessly with MCP tools

Method 2: Explicit Token (Not Recommended)

python

hf_jobs("uv", {
    "script": "your_script.py",
    "secrets": {"HF_TOKEN": "hf_abc123..."}  # ⚠️ Hardcoded token
})

When to use:

Only if automatic token doesn't work
Testing with a specific token
Organization tokens (use with caution)

Security concerns:

Token visible in code/logs
Must manually update if token rotates
Risk of token exposure

Method 3: Environment Variable (Less Secure)

python

hf_jobs("uv", {
    "script": "your_script.py",
    "env": {"HF_TOKEN": "hf_abc123..."}  # ⚠️ Less secure than secrets
})

Difference from secrets:

```
env
```
variables are visible in job logs
```
secrets
```
are encrypted server-side
Always prefer
```
secrets
```
for tokens

Using Tokens in Scripts

In your Python script, tokens are available as environment variables:

python

# /// script
# dependencies = ["huggingface-hub"]
# ///

import os
from huggingface_hub import HfApi

# Token is automatically available if passed via secrets
token = os.environ.get("HF_TOKEN")

# Use with Hub API
api = HfApi(token=token)

# Or let huggingface_hub auto-detect
api = HfApi()  # Automatically uses HF_TOKEN env var

Best practices:

Don't hardcode tokens in scripts
Use
```
os.environ.get("HF_TOKEN")
```
to access
Let
```
huggingface_hub
```
auto-detect when possible
Verify token exists before Hub operations

Token Verification

Check if you're logged in:

python

from huggingface_hub import whoami
user_info = whoami()  # Returns your username if authenticated

Verify token in job:

python

import os
assert "HF_TOKEN" in os.environ, "HF_TOKEN not found!"
token = os.environ["HF_TOKEN"]
print(f"Token starts with: {token[:7]}...")  # Should start with "hf_"

Common Token Issues

Error: 401 Unauthorized

Cause: Token missing or invalid
Fix: Add
```
secrets={"HF_TOKEN": "$HF_TOKEN"}
```
to job config
Verify: Check
```
hf_whoami()
```
works locally

Error: 403 Forbidden

Cause: Token lacks required permissions
Fix: Ensure token has write permissions for push operations
Check: Token type at https://huggingface.co/settings/tokens

Error: Token not found in environment

Cause:
```
secrets
```
not passed or wrong key name
Fix: Use
```
secrets={"HF_TOKEN": "$HF_TOKEN"}
```
(not
```
env
```
)
Verify: Script checks
```
os.environ.get("HF_TOKEN")
```

Error: Repository access denied

Cause: Token doesn't have access to private repo
Fix: Use token from account with access
Check: Verify repo visibility and your permissions

Token Security Best Practices

Never commit tokens - Use
```
$HF_TOKEN
```
placeholder or environment variables
Use secrets, not env - Secrets are encrypted server-side
Rotate tokens regularly - Generate new tokens periodically
Use minimal permissions - Create tokens with only needed permissions
Don't share tokens - Each user should use their own token
Monitor token usage - Check token activity in Hub settings

Complete Token Example

python

# Example: Push results to Hub
hf_jobs("uv", {
    "script": """
# /// script
# dependencies = ["huggingface-hub", "datasets"]
# ///

import os
from huggingface_hub import HfApi
from datasets import Dataset

# Verify token is available
assert "HF_TOKEN" in os.environ, "HF_TOKEN required!"

# Use token for Hub operations
api = HfApi(token=os.environ["HF_TOKEN"])

# Create and push dataset
data = {"text": ["Hello", "World"]}
dataset = Dataset.from_dict(data)
dataset.push_to_hub("username/my-dataset", token=os.environ["HF_TOKEN"])

print("✅ Dataset pushed successfully!")
""",
    "flavor": "cpu-basic",
    "timeout": "30m",
    "secrets": {"HF_TOKEN": "$HF_TOKEN"}  # ✅ Token provided securely
})

Quick Start: Two Approaches

Approach 1: UV Scripts (Recommended)

UV scripts use PEP 723 inline dependencies for clean, self-contained workloads.

MCP Tool:

python

hf_jobs("uv", {
    "script": """
# /// script
# dependencies = ["transformers", "torch"]
# ///

from transformers import pipeline
import torch

# Your workload here
classifier = pipeline("sentiment-analysis")
result = classifier("I love Hugging Face!")
print(result)
""",
    "flavor": "cpu-basic",
    "timeout": "30m"
})

CLI Equivalent:

bash

hf jobs uv run my_script.py --flavor cpu-basic --timeout 30m

Python API:

python

from huggingface_hub import run_uv_job
run_uv_job("my_script.py", flavor="cpu-basic", timeout="30m")

Benefits: Direct MCP tool usage, clean code, dependencies declared inline, no file saving required

When to use: Default choice for all workloads, custom logic, any scenario requiring

hf_jobs()

Custom Docker Images for UV Scripts

By default, UV scripts use

ghcr.io/astral-sh/uv:python3.12-bookworm-slim

. For ML workloads with complex dependencies, use pre-built images:

python

hf_jobs("uv", {
    "script": "inference.py",
    "image": "vllm/vllm-openai:latest",  # Pre-built image with vLLM
    "flavor": "a10g-large"
})

CLI:

bash

hf jobs uv run --image vllm/vllm-openai:latest --flavor a10g-large inference.py

Benefits: Faster startup, pre-installed dependencies, optimized for specific frameworks

Python Version

By default, UV scripts use Python 3.12. Specify a different version:

python

hf_jobs("uv", {
    "script": "my_script.py",
    "python": "3.11",  # Use Python 3.11
    "flavor": "cpu-basic"
})

Python API:

python

from huggingface_hub import run_uv_job
run_uv_job("my_script.py", python="3.11")

Working with Scripts

⚠️ Important: There are two "script path" stories depending on how you run Jobs:

Using the
hf_jobs()
MCP tool (recommended in this repo): the
```
script
```
value must be inline code (a string) or a URL. A local filesystem path (like
```
"./scripts/foo.py"
```
) won't exist inside the remote container.
Using the
hf jobs uv run
CLI: local file paths do work (the CLI uploads your script).

Common mistake with
hf_jobs()
MCP tool:

python

# ❌ Will fail (remote container can't see your local path)
hf_jobs("uv", {"script": "./scripts/foo.py"})

Correct patterns with
hf_jobs()
MCP tool:

python

# ✅ Inline: read the local script file and pass its *contents*
from pathlib import Path
script = Path("hf-jobs/scripts/foo.py").read_text()
hf_jobs("uv", {"script": script})

# ✅ URL: host the script somewhere reachable
hf_jobs("uv", {"script": "https://huggingface.co/datasets/uv-scripts/.../raw/main/foo.py"})

# ✅ URL from GitHub
hf_jobs("uv", {"script": "https://raw.githubusercontent.com/huggingface/trl/main/trl/scripts/sft.py"})

CLI equivalent (local paths supported):

bash

hf jobs uv run ./scripts/foo.py -- --your --args

Adding Dependencies at Runtime

Add extra dependencies beyond what's in the PEP 723 header:

python

hf_jobs("uv", {
    "script": "inference.py",
    "dependencies": ["transformers", "torch>=2.0"],  # Extra deps
    "flavor": "a10g-small"
})

Python API:

python

from huggingface_hub import run_uv_job
run_uv_job("inference.py", dependencies=["transformers", "torch>=2.0"])

Approach 2: Docker-Based Jobs

Run jobs with custom Docker images and commands.

MCP Tool:

python

hf_jobs("run", {
    "image": "python:3.12",
    "command": ["python", "-c", "print('Hello from HF Jobs!')"],
    "flavor": "cpu-basic",
    "timeout": "30m"
})

CLI Equivalent:

bash

hf jobs run python:3.12 python -c "print('Hello from HF Jobs!')"

Python API:

python

from huggingface_hub import run_job
run_job(image="python:3.12", command=["python", "-c", "print('Hello!')"], flavor="cpu-basic")

Benefits: Full Docker control, use pre-built images, run any command When to use: Need specific Docker images, non-Python workloads, complex environments

Example with GPU:

python

hf_jobs("run", {
    "image": "pytorch/pytorch:2.6.0-cuda12.4-cudnn9-devel",
    "command": ["python", "-c", "import torch; print(torch.cuda.get_device_name())"],
    "flavor": "a10g-small",
    "timeout": "1h"
})

Using Hugging Face Spaces as Images:

You can use Docker images from HF Spaces:

python

hf_jobs("run", {
    "image": "hf.co/spaces/lhoestq/duckdb",  # Space as Docker image
    "command": ["duckdb", "-c", "SELECT 'Hello from DuckDB!'"],
    "flavor": "cpu-basic"
})

CLI:

bash

hf jobs run hf.co/spaces/lhoestq/duckdb duckdb -c "SELECT 'Hello!'"

Finding More UV Scripts on Hub

The

uv-scripts

organization provides ready-to-use UV scripts stored as datasets on Hugging Face Hub:

python

# Discover available UV script collections
dataset_search({"author": "uv-scripts", "sort": "downloads", "limit": 20})

# Explore a specific collection
hub_repo_details(["uv-scripts/classification"], repo_type="dataset", include_readme=True)

Popular collections: OCR, classification, synthetic-data, vLLM, dataset-creation

Hardware Selection

Reference: HF Jobs Hardware Docs (updated 07/2025)

Workload Type	Recommended Hardware	Use Case
Data processing, testing	`cpu-basic` , `cpu-upgrade`	Lightweight tasks
Small models, demos	`t4-small`	<1B models, quick tests
Medium models	`t4-medium` , `l4x1`	1-7B models
Large models, production	`a10g-small` , `a10g-large`	7-13B models
Very large models	`a100-large`	13B+ models
Batch inference	`a10g-large` , `a100-large`	High-throughput
Multi-GPU workloads	`l4x4` , `a10g-largex2` , `a10g-largex4`	Parallel/large models
TPU workloads	`v5e-1x1` , `v5e-2x2` , `v5e-2x4`	JAX/Flax, TPU-optimized

All Available Flavors:

CPU:
```
cpu-basic
```
,
```
cpu-upgrade
```

GPU:

t4-small

t4-medium

l4x1

l4x4

a10g-small

a10g-large

a10g-largex2

a10g-largex4

a100-large

TPU:
```
v5e-1x1
```
,
```
v5e-2x2
```
,
```
v5e-2x4
```

Guidelines:

Start with smaller hardware for testing
Scale up based on actual needs
Use multi-GPU for parallel workloads or large models
Use TPUs for JAX/Flax workloads
See
```
references/hardware_guide.md
```
for detailed specifications

Critical: Saving Results

⚠️ EPHEMERAL ENVIRONMENT—MUST PERSIST RESULTS

The Jobs environment is temporary. All files are deleted when the job ends. If results aren't persisted, ALL WORK IS LOST.

Persistence Options

1. Push to Hugging Face Hub (Recommended)

python

# Push models
model.push_to_hub("username/model-name", token=os.environ["HF_TOKEN"])

# Push datasets
dataset.push_to_hub("username/dataset-name", token=os.environ["HF_TOKEN"])

# Push artifacts
api.upload_file(
    path_or_fileobj="results.json",
    path_in_repo="results.json",
    repo_id="username/results",
    token=os.environ["HF_TOKEN"]
)

2. Use External Storage

python

# Upload to S3, GCS, etc.
import boto3
s3 = boto3.client('s3')
s3.upload_file('results.json', 'my-bucket', 'results.json')

3. Send Results via API

python

# POST results to your API
import requests
requests.post("https://your-api.com/results", json=results)

Required Configuration for Hub Push

In job submission:

python

{
    "secrets": {"HF_TOKEN": "$HF_TOKEN"}  # Enables authentication
}

In script:

python

import os
from huggingface_hub import HfApi

# Token automatically available from secrets
api = HfApi(token=os.environ.get("HF_TOKEN"))

# Push your results
api.upload_file(...)

Verification Checklist

Before submitting:

Results persistence method chosen
```
secrets={"HF_TOKEN": "$HF_TOKEN"}
```
if using Hub
Script handles missing token gracefully
Test persistence path works

See:

references/hub_saving.md

for detailed Hub persistence guide

Timeout Management

⚠️ DEFAULT: 30 MINUTES

Jobs automatically stop after the timeout. For long-running tasks like training, always set a custom timeout.

Setting Timeouts

MCP Tool:

python

{
    "timeout": "2h"   # 2 hours
}

Supported formats:

Integer/float: seconds (e.g.,
```
300
```
= 5 minutes)
String with suffix:
```
"5m"
```
(minutes),
```
"2h"
```
(hours),
```
"1d"
```
(days)
Examples:
```
"90m"
```
,
```
"2h"
```
,
```
"1.5h"
```
,
```
300
```
,
```
"1d"
```

Python API:

python

from huggingface_hub import run_job, run_uv_job

run_job(image="python:3.12", command=[...], timeout="2h")
run_uv_job("script.py", timeout=7200)  # 2 hours in seconds

Timeout Guidelines

Scenario	Recommended	Notes
Quick test	10-30 min	Verify setup
Data processing	1-2 hours	Depends on data size
Batch inference	2-4 hours	Large batches
Experiments	4-8 hours	Multiple runs
Long-running	8-24 hours	Production workloads

Always add 20-30% buffer for setup, network delays, and cleanup.

On timeout: Job killed immediately, all unsaved progress lost

Cost Estimation

General guidelines:

Total Cost = (Hours of runtime) × (Cost per hour)

Example calculations:

Quick test:

Hardware: cpu-basic ($0.10/hour)
Time: 15 minutes (0.25 hours)
Cost: $0.03

Data processing:

Hardware: l4x1 ($2.50/hour)
Time: 2 hours
Cost: $5.00

Batch inference:

Hardware: a10g-large ($5/hour)
Time: 4 hours
Cost: $20.00

Cost optimization tips:

Start small - Test on cpu-basic or t4-small
Monitor runtime - Set appropriate timeouts
Use checkpoints - Resume if job fails
Optimize code - Reduce unnecessary compute
Choose right hardware - Don't over-provision

Monitoring and Tracking

Check Job Status

MCP Tool:

python

# List all jobs
hf_jobs("ps")

# Inspect specific job
hf_jobs("inspect", {"job_id": "your-job-id"})

# View logs
hf_jobs("logs", {"job_id": "your-job-id"})

# Cancel a job
hf_jobs("cancel", {"job_id": "your-job-id"})

Python API:

python

from huggingface_hub import list_jobs, inspect_job, fetch_job_logs, cancel_job

# List your jobs
jobs = list_jobs()

# List running jobs only
running = [j for j in list_jobs() if j.status.stage == "RUNNING"]

# Inspect specific job
job_info = inspect_job(job_id="your-job-id")

# View logs
for log in fetch_job_logs(job_id="your-job-id"):
    print(log)

# Cancel a job
cancel_job(job_id="your-job-id")

CLI:

bash

hf jobs ps                    # List jobs
hf jobs logs <job-id>         # View logs
hf jobs cancel <job-id>       # Cancel job

Remember: Wait for user to request status checks. Avoid polling repeatedly.

Job URLs

After submission, jobs have monitoring URLs:

https://huggingface.co/jobs/username/job-id

View logs, status, and details in the browser.

Wait for Multiple Jobs

python

import time
from huggingface_hub import inspect_job, run_job

# Run multiple jobs
jobs = [run_job(image=img, command=cmd) for img, cmd in workloads]

# Wait for all to complete
for job in jobs:
    while inspect_job(job_id=job.id).status.stage not in ("COMPLETED", "ERROR"):
        time.sleep(10)

Scheduled Jobs

Run jobs on a schedule using CRON expressions or predefined schedules.

MCP Tool:

python

# Schedule a UV script that runs every hour
hf_jobs("scheduled uv", {
    "script": "your_script.py",
    "schedule": "@hourly",
    "flavor": "cpu-basic"
})

# Schedule with CRON syntax
hf_jobs("scheduled uv", {
    "script": "your_script.py",
    "schedule": "0 9 * * 1",  # 9 AM every Monday
    "flavor": "cpu-basic"
})

# Schedule a Docker-based job
hf_jobs("scheduled run", {
    "image": "python:3.12",
    "command": ["python", "-c", "print('Scheduled!')"],
    "schedule": "@daily",
    "flavor": "cpu-basic"
})

Python API:

python

from huggingface_hub import create_scheduled_job, create_scheduled_uv_job

# Schedule a Docker job
create_scheduled_job(
    image="python:3.12",
    command=["python", "-c", "print('Running on schedule!')"],
    schedule="@hourly"
)

# Schedule a UV script
create_scheduled_uv_job("my_script.py", schedule="@daily", flavor="cpu-basic")

# Schedule with GPU
create_scheduled_uv_job(
    "ml_inference.py",
    schedule="0 */6 * * *",  # Every 6 hours
    flavor="a10g-small"
)

Available schedules:

```
@annually
```
,
```
@yearly
```
- Once per year
```
@monthly
```
- Once per month
```
@weekly
```
- Once per week
```
@daily
```
- Once per day
```
@hourly
```
- Once per hour
CRON expression - Custom schedule (e.g.,
```
"*/5 * * * *"
```
for every 5 minutes)

Manage scheduled jobs:

python

# MCP Tool
hf_jobs("scheduled ps")                              # List scheduled jobs
hf_jobs("scheduled inspect", {"job_id": "..."})     # Inspect details
hf_jobs("scheduled suspend", {"job_id": "..."})     # Pause
hf_jobs("scheduled resume", {"job_id": "..."})      # Resume
hf_jobs("scheduled delete", {"job_id": "..."})      # Delete

Python API for management:

python

from huggingface_hub import (
    list_scheduled_jobs,
    inspect_scheduled_job,
    suspend_scheduled_job,
    resume_scheduled_job,
    delete_scheduled_job
)

# List all scheduled jobs
scheduled = list_scheduled_jobs()

# Inspect a scheduled job
info = inspect_scheduled_job(scheduled_job_id)

# Suspend (pause) a scheduled job
suspend_scheduled_job(scheduled_job_id)

# Resume a scheduled job
resume_scheduled_job(scheduled_job_id)

# Delete a scheduled job
delete_scheduled_job(scheduled_job_id)

Webhooks: Trigger Jobs on Events

Trigger jobs automatically when changes happen in Hugging Face repositories.

Python API:

python

from huggingface_hub import create_webhook

# Create webhook that triggers a job when a repo changes
webhook = create_webhook(
    job_id=job.id,
    watched=[
        {"type": "user", "name": "your-username"},
        {"type": "org", "name": "your-org-name"}
    ],
    domains=["repo", "discussion"],
    secret="your-secret"
)

How it works:

Webhook listens for changes in watched repositories
When triggered, the job runs with
```
WEBHOOK_PAYLOAD
```
environment variable
Your script can parse the payload to understand what changed

Use cases:

Auto-process new datasets when uploaded
Trigger inference when models are updated
Run tests when code changes
Generate reports on repository activity

Access webhook payload in script:

python

import os
import json

payload = json.loads(os.environ.get("WEBHOOK_PAYLOAD", "{}"))
print(f"Event type: {payload.get('event', {}).get('action')}")

See Webhooks Documentation for more details.

Common Workload Patterns

This repository ships ready-to-run UV scripts in

hf-jobs/scripts/

. Prefer using them instead of inventing new templates.

Pattern 1: Dataset → Model Responses (vLLM) —

scripts/generate-responses.py

What it does: loads a Hub dataset (chat

messages

or a

prompt

column), applies a model chat template, generates responses with vLLM, and pushes the output dataset + dataset card back to the Hub.

Requires: GPU + write token (it pushes a dataset).

python

from pathlib import Path

script = Path("hf-jobs/scripts/generate-responses.py").read_text()
hf_jobs("uv", {
    "script": script,
    "script_args": [
        "username/input-dataset",
        "username/output-dataset",
        "--messages-column", "messages",
        "--model-id", "Qwen/Qwen3-30B-A3B-Instruct-2507",
        "--temperature", "0.7",
        "--top-p", "0.8",
        "--max-tokens", "2048",
    ],
    "flavor": "a10g-large",
    "timeout": "4h",
    "secrets": {"HF_TOKEN": "$HF_TOKEN"},
})

Pattern 2: CoT Self-Instruct Synthetic Data —

scripts/cot-self-instruct.py

What it does: generates synthetic prompts/answers via CoT Self-Instruct, optionally filters outputs (answer-consistency / RIP), then pushes the generated dataset + dataset card to the Hub.

Requires: GPU + write token (it pushes a dataset).

python

from pathlib import Path

script = Path("hf-jobs/scripts/cot-self-instruct.py").read_text()
hf_jobs("uv", {
    "script": script,
    "script_args": [
        "--seed-dataset", "davanstrien/s1k-reasoning",
        "--output-dataset", "username/synthetic-math",
        "--task-type", "reasoning",
        "--num-samples", "5000",
        "--filter-method", "answer-consistency",
    ],
    "flavor": "l4x4",
    "timeout": "8h",
    "secrets": {"HF_TOKEN": "$HF_TOKEN"},
})

Pattern 3: Streaming Dataset Stats (Polars + HF Hub) —

scripts/finepdfs-stats.py

What it does: scans parquet directly from Hub (no 300GB download), computes temporal stats, and (optionally) uploads results to a Hub dataset repo.

Requires: CPU is often enough; token needed only if you pass

--output-repo

(upload).

python

from pathlib import Path

script = Path("hf-jobs/scripts/finepdfs-stats.py").read_text()
hf_jobs("uv", {
    "script": script,
    "script_args": [
        "--limit", "10000",
        "--show-plan",
        "--output-repo", "username/finepdfs-temporal-stats",
    ],
    "flavor": "cpu-upgrade",
    "timeout": "2h",
    "env": {"HF_XET_HIGH_PERFORMANCE": "1"},
    "secrets": {"HF_TOKEN": "$HF_TOKEN"},
})

Common Failure Modes

Out of Memory (OOM)

Fix:

Reduce batch size or data chunk size
Process data in smaller batches
Upgrade hardware: cpu → t4 → a10g → a100

Job Timeout

Fix:

Check logs for actual runtime
Increase timeout with buffer:
```
"timeout": "3h"
```
Optimize code for faster execution
Process data in chunks

Hub Push Failures

Fix:

Add to job:
```
secrets={"HF_TOKEN": "$HF_TOKEN"}
```
Verify token in script:
```
assert "HF_TOKEN" in os.environ
```
Check token permissions
Verify repo exists or can be created

Missing Dependencies

Fix: Add to PEP 723 header:

python

# /// script
# dependencies = ["package1", "package2>=1.0.0"]
# ///

Authentication Errors

Fix:

Check
```
hf_whoami()
```
works locally
Verify
```
secrets={"HF_TOKEN": "$HF_TOKEN"}
```
in job config
Re-login:
```
hf auth login
```
Check token has required permissions

Troubleshooting

Common issues:

Job times out → Increase timeout, optimize code
Results not saved → Check persistence method, verify HF_TOKEN
Out of Memory → Reduce batch size, upgrade hardware
Import errors → Add dependencies to PEP 723 header
Authentication errors → Check token, verify secrets parameter

See:

references/troubleshooting.md

for complete troubleshooting guide

Resources

References (In This Skill)

```
references/token_usage.md
```
- Complete token usage guide
```
references/hardware_guide.md
```
- Hardware specs and selection
```
references/hub_saving.md
```
- Hub persistence guide
```
references/troubleshooting.md
```
- Common issues and solutions

Scripts (In This Skill)

```
scripts/generate-responses.py
```
- vLLM batch generation: dataset → responses → push to Hub
```
scripts/cot-self-instruct.py
```
- CoT Self-Instruct synthetic data generation + filtering → push to Hub
```
scripts/finepdfs-stats.py
```
- Polars streaming stats over
```
finepdfs-edu
```
parquet on Hub (optional push)

External Links

Official Documentation:

HF Jobs Guide - Main documentation
HF Jobs CLI Reference - Command line interface
HF Jobs API Reference - Python API details
Hardware Flavors Reference - Available hardware

Related Tools:

UV Scripts Guide - PEP 723 inline dependencies
UV Scripts Organization - Community UV script collection
HF Hub Authentication - Token setup
Webhooks Documentation - Event triggers

Key Takeaways

Submit scripts inline - The
```
script
```
parameter accepts Python code directly; no file saving required unless user requests
Jobs are asynchronous - Don't wait/poll; let user check when ready
Always set timeout - Default 30 min may be insufficient; set appropriate timeout
Always persist results - Environment is ephemeral; without persistence, all work is lost
Use tokens securely - Always use
```
secrets={"HF_TOKEN": "$HF_TOKEN"}
```
for Hub operations
Choose appropriate hardware - Start small, scale up based on needs (see hardware guide)
Use UV scripts - Default to
```
hf_jobs("uv", {...})
```
with inline scripts for Python workloads
Handle authentication - Verify tokens are available before Hub operations
Monitor jobs - Provide job URLs and status check commands
Optimize costs - Choose right hardware, set appropriate timeouts

Quick Reference: MCP Tool vs CLI vs Python API

Operation	MCP Tool	CLI	Python API
Run UV script	`hf_jobs("uv", {...})`	`hf jobs uv run script.py`	`run_uv_job("script.py")`
Run Docker job	`hf_jobs("run", {...})`	`hf jobs run image cmd`	`run_job(image, command)`
List jobs	`hf_jobs("ps")`	`hf jobs ps`	`list_jobs()`
View logs	`hf_jobs("logs", {...})`	`hf jobs logs <id>`	`fetch_job_logs(job_id)`
Cancel job	`hf_jobs("cancel", {...})`	`hf jobs cancel <id>`	`cancel_job(job_id)`
Schedule UV	`hf_jobs("scheduled uv", {...})`	-	`create_scheduled_uv_job()`
Schedule Docker	`hf_jobs("scheduled run", {...})`	-	`create_scheduled_job()`

hugging-face-jobs

NPX Install

Tags

SKILL.md Content

Running Workloads on Hugging Face Jobs

Overview

When to Use This Skill

Key Directives

Prerequisites Checklist

✅ Account & Authentication

✅ Token Usage (See Token Usage section for details)

Token Usage Guide

Understanding Tokens

When Tokens Are Required

How to Provide Tokens to Jobs

Method 1: Automatic Token (Recommended)

Method 2: Explicit Token (Not Recommended)

Method 3: Environment Variable (Less Secure)

Using Tokens in Scripts

Token Verification

Common Token Issues

Token Security Best Practices

Complete Token Example

Quick Start: Two Approaches

Approach 1: UV Scripts (Recommended)

Custom Docker Images for UV Scripts

Python Version

Working with Scripts

Adding Dependencies at Runtime

Approach 2: Docker-Based Jobs

Finding More UV Scripts on Hub

Hardware Selection

Critical: Saving Results

Persistence Options

Required Configuration for Hub Push

Verification Checklist

Timeout Management

Setting Timeouts

Timeout Guidelines

Cost Estimation

Monitoring and Tracking

Check Job Status

Job URLs

Wait for Multiple Jobs

Scheduled Jobs

Webhooks: Trigger Jobs on Events

Common Workload Patterns

Pattern 1: Dataset → Model Responses (vLLM) — scripts/generate-responses.py

Pattern 2: CoT Self-Instruct Synthetic Data — scripts/cot-self-instruct.py

Pattern 3: Streaming Dataset Stats (Polars + HF Hub) — scripts/finepdfs-stats.py

Common Failure Modes

Out of Memory (OOM)

Job Timeout

Hub Push Failures

Missing Dependencies

Authentication Errors

Troubleshooting

Resources

References (In This Skill)

Scripts (In This Skill)

External Links

Key Takeaways

Quick Reference: MCP Tool vs CLI vs Python API

Pattern 1: Dataset → Model Responses (vLLM) —
`scripts/generate-responses.py`

Pattern 2: CoT Self-Instruct Synthetic Data —
`scripts/cot-self-instruct.py`

Pattern 3: Streaming Dataset Stats (Polars + HF Hub) —
`scripts/finepdfs-stats.py`