Agent Platform Tuning skill: fine-tune Gemma, Llama, Qwen or Gemini on Google Cloud

• Asks for project, region and model category before acting

  Nine checks: project and region, open or Gemini model, environment, dataset, column mapping, configuration, job, completion and deployment. It stops and asks if the project or region is missing.

  Try: “Fine-tune an open model on my support-tickets.csv in project my-proj, region global.”

  Read · Decision tree

• gcloud auth, location, APIs, roles

  Checks gcloud and auth, picks a location (global is recommended for open models), runs gcloud services enable for the Agent Platform and Cloud Storage APIs, and checks roles for you and the service agents.

  Runs code · Phase 0: Environment and IAM

• Converts CSV, JSON or Parquet to JSONL and validates it

  Formats data for tuning, can split off a 10 percent validation set, and has a validate-only mode. SKILL.md says to ask before splitting.

  Write · scripts/prepare_dataset.py

• Copies the dataset to your bucket

  Uploads the JSONL to a timestamped folder in the bucket you name, used exactly as written.

  Runs code · Upload with gcloud storage cp

• Suggests public datasets for a task

  references/hf_datasets.md lists datasets and tells the assistant to load them with the datasets library, ask you to confirm the split and columns, and stream large ones.

  Network · Hugging Face datasets

• Lists live Model Garden IDs

  Lists up to 20 matching model IDs through the vertexai SDK so the assistant picks from real IDs.

  Network · scripts/list_models.py

• Estimates open-model tuning cost

  Reads your dataset (including from Cloud Storage) and a model entry to print an estimated dollar figure that goes into the confirmation card. SKILL.md says it can differ from actual billing.

  Network · scripts/calculate_cost.py

• Submits an open-model tuning job

  Needs an --output_uri bucket path. Gemini jobs go through the google.genai or vertexai SDK in Python snippets instead.

  Runs code · scripts/tune_open_model.py

• Polls job status in the background

  Runs only if you agree. Otherwise you check the Cloud Console link yourself.

  Network · scripts/monitor_tuning_job.py

• Cancels a tuning job

  Takes project, location and job ID and sends a cancel request. SKILL.md does not mention it.

  Runs code · scripts/cancel_tuning_job.py

• Registers the tuned model and deploys it to a new endpoint

  Runs gcloud ai commands to upload the model, create an endpoint and deploy to it, after you confirm the commands. It needs a real region, not global.

  Runs code · Phase 5: Deploy

Watch out for

• Tuning jobs and endpoints cost money

  Jobs run on the Google Cloud project you name; the charge lands there (our reading). SKILL.md gives a dollar estimate for open-model jobs only (scripts/calculate_cost.py) and says it can differ from actual billing; it names no cost script for Gemini jobs. Check the figure on the confirmation card before you approve. github.com

• Phase 5 creates a dedicated endpoint

  After a job succeeds, the deploy script registers the tuned model, creates an endpoint and deploys it with the machine type and accelerator from list-deployment-config, after a Yes/No card. It writes flags files to /tmp. SKILL.md gives no undeploy or delete step for the endpoint, so you must remove it yourself; see the cleanup steps in the agent-platform-deploy skill. github.com

• It runs gcloud with --quiet and changes your project

  Phase 0 runs `gcloud components update --quiet`, and gcloud services enable changes the project. Job submission and deployment ask for a Yes/No confirmation first, per the SKILL.md. github.com

• Your training data goes to Cloud Storage and Google's tuning service

  The dataset is uploaded to the bucket you name and used as the training dataset. Do not use data you cannot send to Google Cloud. github.com

• It may install Python packages

  If the import check fails it runs pip install -r references/requirements.txt, which pins google-cloud-aiplatform, datasets, google-cloud-storage and google-genai. github.com

• A cancel script is bundled

  scripts/cancel_tuning_job.py sends a cancel request for a job ID. SKILL.md does not tell the assistant to call it, but it sits in the folder. github.com