Model Download User

Model Download Agent

Set up the Model Download microservice and walk the user through downloading or converting any supported model using the REST API.

Preview: This skill is in preview — share feedback to help improve it.

When to Use

• User wants to download a model from HuggingFace, Ollama, Ultralytics, Geti, Pipeline Zoo, or HLS
• User wants to convert a HuggingFace model to OpenVINO IR format for OVMS deployment
• User asks about model precision conversion (INT4/INT8/FP16/FP32)
• User needs to target a specific device (CPU, GPU, NPU, or HETERO combinations like HETERO:GPU,CPU)
• User wants to download healthcare AI models (3D Pose, rPPG, AI-ECG)
• User is integrating model downloads into a Docker Compose workflow

Supported Hubs at a Glance

Ollama Quick-Reference

Always use these exact field names for Ollama requests — the API differs from what generic model-download documentation implies.

{
  "models": [
    {
      "hub": "ollama",
      "name": "<model-family>",
      "revision": "<tag>"
    }
  ]
}

• hub must be "ollama" (not model_hub, not type)
• name is the base model family: "llama3.2", "mistral", "gemma2" (no tag suffix)
• revision is the tag: "3b", "7b", "latest" (separate field, not model_name)
• Port is always 8200 (not 8080, not 8000)
• Plugin flag: source scripts/run_service.sh up --plugins ollama

Example — download llama3.2:3b:

curl -s -X POST "http://localhost:8200/api/v1/models/download?download_path=ollama-models" \
  -H "Content-Type: application/json" \
  -d '{"models": [{"hub": "ollama", "name": "llama3.2", "revision": "3b"}]}'

Common Mistakes to Avoid

Reference Lookup

Read a reference file only when you need the detail it contains:

Procedure

Execution Overview

After Step 0 (gather requirements), start the service setup in parallel with composing the API call.

Step 0 (gather requirements — interactive)
  │
  ├──► Step 1 (service setup — may require user action)
  └──► Step 2 (compose API call body — reasoning)
         │
         ├──► Step 3 (submit job + poll status)
         └──► Step 4 (verify result + next steps)

Step 0 — Gather Requirements

Extract the following from the user's prompt. If anything is missing, ask before proceeding.

OpenVINO-specific rules (ask only if the user wants OVMS / OpenVINO conversion):

• NPU forces int4 regardless of other settings (applies only to the exact NPU device, not HETERO combinations such as HETERO:NPU,CPU)
• HETERO devices appear in the output path as a filesystem-safe slug: HETERO:GPU,CPU → openvino_models/hetero_gpu_cpu/
• LLM/VLM conversions support cache_size (KV cache in GB) — ask if user mentioned memory constraints
• Embeddings and reranker conversions use text_generation/embeddings_ov/rerank_ov export types internally — these are resolved automatically from type

If the user's prompt explicitly names a model AND hub, go straight to Step 1. Otherwise ask.

Step 1 — Service Setup

Read service-setup.md for full details.

Show the user the service startup command, using only the plugins their request requires:

# Clone (if not already done)
git clone https://github.com/open-edge-platform/edge-ai-libraries.git -b main
cd edge-ai-libraries/microservices/model-download

# Set env vars
export HUGGINGFACEHUB_API_TOKEN=<your-hf-token>   # mapped into the container as HF_TOKEN
export REGISTRY="intel/"
export TAG=latest

# Start service (adjust --plugins to match what you need)
source scripts/run_service.sh up --plugins <comma-separated-list> --model-path $PWD/models

Plugin list recommendations:

• HuggingFace only → --plugins huggingface
• HuggingFace + OpenVINO conversion → --plugins huggingface,openvino
• Ollama → --plugins ollama
• Ultralytics → --plugins ultralytics
• All → --plugins all

Confirm the service is healthy before proceeding:

curl http://localhost:8200/api/v1/health
# Expected: {"status": "ok"}

Every final answer to the user must restate both the exact startup command (with the right --plugins list) and the port 8200 — not just the request payload. Users copy answers piecemeal, so a payload without its startup command or port is easy to misapply.

Step 2 — Compose the API Request

Read plugins-guide.md for the exact request body for each plugin.

The general request shape for POST /api/v1/models/download?download_path=<subdir> is:

{
  "models": [
    {
      "name": "<model-identifier>",
      "hub": "<hub-value>",
      "type": "<model-type-or-omit>",
      "is_ovms": false,
      "config": {}
    }
  ]
}

Key rules:

• is_ovms: true triggers OpenVINO conversion
• Use hub: "openvino" with is_ovms: true and a type field for conversion
• config holds precision, device, cache_size, and plugin-specific params
• download_path query param sets the subdirectory under the model store

Step 3 — Submit Job and Poll Status

# 1. Submit download job
JOB_RESPONSE=$(curl -s -X POST \
  "http://localhost:8200/api/v1/models/download?download_path=my-models" \
  -H "Content-Type: application/json" \
  -d '<your-request-body>')

echo "$JOB_RESPONSE"
# Response: {"job_ids": ["<uuid>"]}

# 2. Extract job ID
JOB_ID=$(echo "$JOB_RESPONSE" | python3 -c "import sys,json; print(json.load(sys.stdin)['job_ids'][0])")

# 3. Poll until completed or failed
watch -n 5 "curl -s http://localhost:8200/api/v1/jobs/$JOB_ID | python3 -m json.tool"

Job status values: queued → downloading / converting → completed / failed

If status is failed, read the error field and check troubleshooting.md.

Step 4 — Verify and Next Steps

# List all completed downloads
curl -s http://localhost:8200/api/v1/models/results | python3 -m json.tool

# Check a specific model's jobs
curl -s "http://localhost:8200/api/v1/models/jobs?model_name=<model-name>" | python3 -m json.tool

After confirming success, tell the user:

• The host path where the model was saved (shown in the job result's download_path)
• For OVMS conversions: how to mount the model directory into OVMS and which model name to use; the result uses conversion_path
• For Ollama: the model is stored inside the container's model store volume

Important accuracy note for OpenVINO conversions: Use hub: "openvino" with is_ovms: true for model conversion.

Quick alternative: For one-shot, ephemeral container use (CI/CD, scripted workflows), use the get_model.sh one-liner

curl -sSLO https://raw.githubusercontent.com/open-edge-platform/edge-ai-libraries/main/microservices/model-download/scripts/get_model.sh
source ./get_model.sh --model-name <model> --hub <hub> --plugins <plugins>