add aws context for MLFlow

move mlflow to its own command
clean main file
2026-06-05 15:52:55 -04:00 · 2026-06-05 11:47:38 -04:00 · 2026-06-05 11:25:04 -04:00 · 2026-06-04 17:28:17 -04:00 · 2026-06-03 17:13:00 -04:00 · 2026-06-03 21:06:06 +00:00
27 changed files with 1645 additions and 287 deletions
--- a/README.md
+++ b/README.md
@@ -65,6 +65,18 @@ sagemaker:
    entry_point: null       # Optional: script inside source_dir
    source_dir: null        # Optional: local dir packaged and uploaded automatically
    hyperparameters: {}
+
+aihub:
+  device:
+    name: Samsung Galaxy S25 (Family)
+  target_runtime: tflite
+  input_specs: {}           # Required before running qc-cli ai-hub commands
+  job_name: null            # Optional prefix for AI Hub Workbench jobs
+  model_name: null          # Optional name for uploaded local ONNX models
+  compile_options: null
+  profile_options: null
+  quantize_options: null
+  output_dir: build/qai-hub
 ```

 `qc-cli init` generates the `infra.stack_name` and `s3.bucket` namespace once and writes it to `config.yaml`. Keep these values stable for a deployment; changing them points the CLI at different infrastructure.
@@ -78,12 +90,13 @@ To provision an MLflow tracking server, set:
 ```yaml
 mlflow:
  mode: create
-  tracking_server_name: your-tracking-server-name
  experiment_name: qc-cli-training
  registered_model_name: qc-cli-model
  register_trained_models: true
 ```

+In `create` mode, the CLI manages the tracking server name from `infra.stack_name`; you do not need to set `tracking_server_name`.
+
 To use an existing MLflow tracking server, set:

 ```yaml
@@ -92,13 +105,15 @@ mlflow:
  tracking_server_name: your-tracking-server-name
 ```

-Install the optional MLflow dependencies before enabling MLflow:
+When MLflow is enabled, `train start` creates an MLflow run for the SageMaker job. `train status` finalizes that run once the job reaches a terminal state and registers completed model artifacts as experiment model versions using the `experiment-latest` MLflow alias. An experiment version is an immutable trained-source artifact; it records that training produced a model, not that the model is better than earlier versions or ready for release.
+
+To open the managed SageMaker MLflow UI, request a fresh presigned URL:

 ```bash
-uv sync --extra mlflow
+qc-cli mlflow open --config config.yaml
 ```

-When MLflow is enabled, `train start` creates an MLflow run for the SageMaker job. `train status` finalizes that run once the job reaches a terminal state and registers completed model artifacts as pre-release model versions using the `prerelease-latest` MLflow alias.
+This opens a browser to a fresh presigned URL. It works for `mode: create` and for `mode: existing` when the existing server is managed by Amazon SageMaker. In `create` mode, the command uses the CLI-managed tracking server name. In `existing` mode, it uses `mlflow.tracking_server_name`. If the existing MLflow server is external to SageMaker, open it with that server's own URL instead.

 ## Commands

@@ -110,6 +125,12 @@ qc-cli init --output <path>  Write config to a custom path
 qc-cli init --force          Overwrite an existing config file
 ```

+### `mlflow`
+
+```
+qc-cli mlflow open  Open a presigned MLflow UI URL in a browser
+```
+
 ### `infra`

 ```
@@ -151,6 +172,72 @@ qc-cli train list --limit 3     Show a custom number of recent jobs

 The expected output artifact is SageMaker’s `model.tar.gz`, normally containing the trained model file your container writes to `/opt/ml/model`.

+### `ai-hub`
+
+```
+qc-cli ai-hub upload <calibration.npz|calibration-dir> <inputs.npz|inputs.npy>
+qc-cli ai-hub upload <calibration> <inputs> --from-step validate
+qc-cli ai-hub quantize <calibration.npz|calibration-dir> [--onnx-path PATH] [--model-s3-uri URI] [--from-job NAME]
+qc-cli ai-hub compile [--model-id ID] [--onnx-path PATH] [--model-s3-uri URI] [--from-job NAME]
+qc-cli ai-hub validate <inputs.npz|inputs.npy> [--model-id ID] [--input-name NAME]
+qc-cli ai-hub profile [--model-id ID]
+qc-cli ai-hub download [--model-id ID] [--output PATH]
+```
+
+`ai-hub upload` runs the four Workbench upload steps in order: quantize, compile, validate, and profile. Use `--from-step compile`, `--from-step validate`, or `--from-step profile` to resume from saved local state after a completed earlier step.
+
+Resume behavior:
+
+```text
+--from-step quantize  Run quantize, compile, validate, and profile.
+--from-step compile   Skip quantize; compile the last quantized model unless an explicit source is passed.
+--from-step validate  Skip quantize and compile; validate the last compiled model.
+--from-step profile   Skip quantize, compile, and validate; profile the last compiled model.
+```
+
+When a step runs in the current command, `upload` passes its returned model ID directly to the next step. When a step is skipped, the next step resolves the needed model ID from `.qc-cli.json`. This avoids re-running earlier AI Hub jobs when you only need to continue from a later step.
+
+`ai-hub compile` resolves model sources in this order: `--model-id`, explicit source options (`--onnx-path`, `--model-s3-uri`, `--from-job`), last quantized model from state, then the last training job from local state. `ai-hub download` is separate because downloading the optimized artifact is outside the four-step Workbench upload loop.
+
+AI Hub authentication currently uses the local `qai-hub` SDK configuration. A planned follow-up is to support AWS Systems Manager Parameter Store `SecureString` for team-managed tokens, where `config.yaml` stores only a parameter name such as `/qc-cli/aihub/token`, AWS KMS encrypts the token at rest, and the CLI retrieves it at runtime with `ssm:GetParameter` plus `kms:Decrypt` permissions.
+
+## Model lifecycle
+
+The CLI uses neutral experiment naming for trained artifacts and reserves release terminology for an explicit promotion step.
+
+Current behavior:
+
+1. `qc-cli train start` submits a SageMaker training job.
+2. `qc-cli train status` finalizes the MLflow run after the job reaches a terminal state.
+3. If the job completed and `mlflow.register_trained_models` is enabled, the SageMaker `model.tar.gz` is registered as a new MLflow model version with:
+   - `qc_cli.stage=experiment`
+   - `qc_cli.artifact_kind=trained_source`
+   - `qc_cli.source=sagemaker`
+4. The MLflow alias `experiment-latest` points at the most recently registered experiment version.
+5. AI Hub upload commands create deployable derived artifacts from a trained-source experiment or local ONNX model.
+
+Future release aliases such as `v1` or `production` can point at a selected deployable artifact.
+
+Example future metadata:
+
+```text
+qc-cli-model version 12
+qc_cli.stage=experiment
+qc_cli.artifact_kind=trained_source
+qc_cli.source=sagemaker
+
+qc-cli-model-aihub version 3
+qc_cli.stage=ai_hub_compiled
+qc_cli.artifact_kind=deployable
+qc_cli.parent_registered_model_name=qc-cli-model
+qc_cli.parent_model_version=12
+qc_cli.runtime=tflite
+qc_cli.quantization=int8
+qc_cli.target_device=Samsung Galaxy S25
+```
+
+In that flow, `experiment-latest` remains a training convenience alias. Release selection is a separate promotion decision based on the derived artifact, not on the experiment name.
+
 ## AWS permissions required

 The IAM user or role running the CLI needs:
--- a/examples/ai-hub/README.md
+++ b/examples/ai-hub/README.md
@@ -0,0 +1,118 @@
+# Qualcomm AI Hub Example
+
+This example takes the ONNX model produced by the SageMaker training example and runs the Qualcomm AI Hub upload workflow:
+
+1. Quantize
+2. Compile
+3. Validate
+4. Profile
+5. Download the compiled artifact
+
+## Prerequisites
+
+Run the training example first and wait for it to complete:
+
+```bash
+bash examples/training/run_training.sh --config config.yaml --wait
+```
+
+If the dataset is already uploaded to S3, use:
+
+```bash
+bash examples/training/run_training.sh --config config.yaml --skip-upload --wait
+```
+
+The training artifact must contain a static-shape `model.onnx`. The training example exports an input named `input` with shape `1x3x160x160`.
+
+Your `config.yaml` must include AI Hub settings:
+
+```yaml
+aihub:
+  device:
+    name: Samsung Galaxy S25 (Family)
+  target_runtime: tflite
+  input_specs:
+    input: [[1, 3, 160, 160], float32]
+  output_dir: build/qai-hub
+```
+
+You also need local Qualcomm AI Hub SDK authentication configured.
+
+## Prepare Inputs
+
+AI Hub does not consume the raw JPG training images directly. It needs NumPy tensors that match the ONNX model input shape and preprocessing.
+
+Generate calibration and validation inputs:
+
+```bash
+uv run python examples/ai-hub/prepare_inputs.py
+```
+
+This writes:
+
+```text
+examples/training/data/aihub_calibration/*.npy
+examples/training/data/inputs.npz
+```
+
+The script applies the same image preprocessing used by the training example:
+
+- resize to `160x160`
+- convert to channel-first `1x3x160x160`
+- normalize with ImageNet mean and standard deviation
+
+Useful options:
+
+```bash
+uv run python examples/ai-hub/prepare_inputs.py \
+  --dataset-dir examples/training/data/flower_photos_sagemaker \
+  --calibration-dir examples/training/data/aihub_calibration \
+  --input-file examples/training/data/inputs.npz \
+  --samples 16
+```
+
+## Run AI Hub
+
+After training completes and inputs are prepared:
+
+```bash
+bash examples/ai-hub/run_ai_hub.sh --config config.yaml
+```
+
+By default, the script uses the last SageMaker training job recorded in `.qc-cli.json`. It downloads that job's `model.tar.gz`, extracts `model.onnx`, runs the AI Hub workflow, and downloads the compiled artifact.
+
+To use a specific training job:
+
+```bash
+bash examples/ai-hub/run_ai_hub.sh \
+  --config config.yaml \
+  --from-job qc-cli-YYYYMMDD-HHMMSS
+```
+
+To resume from a later Workbench step:
+
+```bash
+bash examples/ai-hub/run_ai_hub.sh \
+  --config config.yaml \
+  --from-step validate
+```
+
+To skip downloading the compiled artifact:
+
+```bash
+bash examples/ai-hub/run_ai_hub.sh \
+  --config config.yaml \
+  --skip-download
+```
+
+## Troubleshooting
+
+If AI Hub reports dynamic input shapes, rerun training with the current training source. AI Hub quantization requires the exported ONNX model to use static input shapes.
+
+If `run_ai_hub.sh` reports missing calibration or input files, run:
+
+```bash
+uv run python examples/ai-hub/prepare_inputs.py
+```
+
+If validation fails with a missing input name, make sure `config.yaml` and the generated `.npz` both use `input` as the input name.
--- a/examples/ai-hub/prepare_inputs.py
+++ b/examples/ai-hub/prepare_inputs.py
@@ -0,0 +1,74 @@
+#!/usr/bin/env python3
+"""Prepare Qualcomm AI Hub calibration and validation inputs for the training example."""
+
+from __future__ import annotations
+
+import argparse
+from pathlib import Path
+
+import numpy as np
+from PIL import Image
+
+IMAGE_EXTENSIONS = {".jpg", ".jpeg", ".png"}
+
+
+def parse_args() -> argparse.Namespace:
+    parser = argparse.ArgumentParser(description=__doc__)
+    parser.add_argument(
+        "--dataset-dir",
+        type=Path,
+        default=Path("examples/training/data/flower_photos_sagemaker"),
+        help="ImageFolder-style dataset used for training.",
+    )
+    parser.add_argument(
+        "--calibration-dir",
+        type=Path,
+        default=Path("examples/training/data/aihub_calibration"),
+        help="Directory where .npy calibration samples will be written.",
+    )
+    parser.add_argument(
+        "--input-file",
+        type=Path,
+        default=Path("examples/training/data/inputs.npz"),
+        help="Validation .npz input file for qc-cli ai-hub validate.",
+    )
+    parser.add_argument("--input-name", default="input", help="ONNX input name.")
+    parser.add_argument("--image-size", type=int, default=160, help="Square image size used by training.")
+    parser.add_argument("--samples", type=int, default=16, help="Number of calibration samples to write.")
+    return parser.parse_args()
+
+
+def preprocess_image(path: Path, image_size: int) -> np.ndarray:
+    image = Image.open(path).convert("RGB").resize((image_size, image_size), Image.Resampling.BILINEAR)
+    array = np.asarray(image, dtype=np.float32) / 255.0
+    array = np.transpose(array, (2, 0, 1))
+    mean = np.array([0.485, 0.456, 0.406], dtype=np.float32)[:, None, None]
+    std = np.array([0.229, 0.224, 0.225], dtype=np.float32)[:, None, None]
+    return ((array - mean) / std)[None, ...].astype("float32")
+
+
+def main() -> None:
+    args = parse_args()
+    images = sorted(p for p in args.dataset_dir.rglob("*") if p.suffix.lower() in IMAGE_EXTENSIONS)
+    if not images:
+        raise SystemExit(f"No images found under {args.dataset_dir}")
+    if args.samples < 1:
+        raise SystemExit("--samples must be at least 1")
+
+    args.calibration_dir.mkdir(parents=True, exist_ok=True)
+    args.input_file.parent.mkdir(parents=True, exist_ok=True)
+
+    sample_count = min(args.samples, len(images))
+    prepared = []
+    for index, image_path in enumerate(images[:sample_count]):
+        sample = preprocess_image(image_path, args.image_size)
+        np.save(args.calibration_dir / f"sample_{index:03d}.npy", sample)
+        prepared.append(sample)
+
+    np.savez(args.input_file, **{args.input_name: prepared[0]})
+    print(f"Wrote {sample_count} calibration samples to {args.calibration_dir}")
+    print(f"Wrote validation input to {args.input_file}")
+
+
+if __name__ == "__main__":
+    main()
--- a/examples/ai-hub/run_ai_hub.sh
+++ b/examples/ai-hub/run_ai_hub.sh
@@ -0,0 +1,156 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+CONFIG_PATH="config.yaml"
+CALIBRATION_PATH="examples/training/data/aihub_calibration"
+INPUT_FILE="examples/training/data/inputs.npz"
+FROM_STEP="quantize"
+FROM_JOB=""
+MODEL_S3_URI=""
+ONNX_PATH=""
+INPUT_NAME=""
+DOWNLOAD=true
+OUTPUT_PATH=""
+
+usage() {
+  cat <<EOF
+Usage: $0 [options]
+
+Options:
+  --config PATH              Path to qc-cli config file. Default: config.yaml
+  --calibration PATH         Calibration .npz file or directory of .npy samples.
+                              Default: ${CALIBRATION_PATH}
+  --input-file PATH          Validation .npz or .npy inputs. Default: ${INPUT_FILE}
+  --from-step STEP           Resume upload from: quantize, compile, validate, profile.
+                              Default: ${FROM_STEP}
+  --from-job NAME            SageMaker training job whose model artifact should upload.
+                              Defaults to the last training job in local qc-cli state.
+  --model-s3-uri URI         S3 URI of model.tar.gz to upload.
+  --onnx-path PATH           Local ONNX path or ONNX path inside extracted artifact.
+  --input-name NAME          Input name for .npy validation files.
+  --skip-download            Do not download the compiled AI Hub artifact after upload.
+  --output PATH              Destination file for ai-hub download.
+  -h, --help                 Show this help.
+EOF
+}
+
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    --config)
+      CONFIG_PATH="$2"
+      shift 2
+      ;;
+    --calibration)
+      CALIBRATION_PATH="$2"
+      shift 2
+      ;;
+    --input-file)
+      INPUT_FILE="$2"
+      shift 2
+      ;;
+    --from-step)
+      FROM_STEP="$2"
+      shift 2
+      ;;
+    --from-job)
+      FROM_JOB="$2"
+      shift 2
+      ;;
+    --model-s3-uri)
+      MODEL_S3_URI="$2"
+      shift 2
+      ;;
+    --onnx-path)
+      ONNX_PATH="$2"
+      shift 2
+      ;;
+    --input-name)
+      INPUT_NAME="$2"
+      shift 2
+      ;;
+    --skip-download)
+      DOWNLOAD=false
+      shift
+      ;;
+    --output)
+      OUTPUT_PATH="$2"
+      shift 2
+      ;;
+    -h|--help)
+      usage
+      exit 0
+      ;;
+    *)
+      echo "Unknown option: $1" >&2
+      usage >&2
+      exit 1
+      ;;
+  esac
+done
+
+if [[ ! -f "${CONFIG_PATH}" ]]; then
+  echo "Config not found: ${CONFIG_PATH}" >&2
+  exit 1
+fi
+
+case "${FROM_STEP}" in
+  quantize|compile|validate|profile)
+    ;;
+  *)
+    echo "--from-step must be one of: quantize, compile, validate, profile" >&2
+    exit 1
+    ;;
+esac
+
+if [[ ! -e "${CALIBRATION_PATH}" ]]; then
+  echo "Calibration path not found: ${CALIBRATION_PATH}" >&2
+  echo "Pass --calibration with a .npz file or directory of .npy samples." >&2
+  exit 1
+fi
+
+if [[ ! -f "${INPUT_FILE}" ]]; then
+  echo "Input file not found: ${INPUT_FILE}" >&2
+  echo "Pass --input-file with a validation .npz or .npy file." >&2
+  exit 1
+fi
+
+run() {
+  echo "+ $*"
+  "$@"
+}
+
+UPLOAD_ARGS=(
+  "${CALIBRATION_PATH}"
+  "${INPUT_FILE}"
+  --from-step "${FROM_STEP}"
+  --config "${CONFIG_PATH}"
+)
+
+if [[ -n "${FROM_JOB}" ]]; then
+  UPLOAD_ARGS+=(--from-job "${FROM_JOB}")
+fi
+
+if [[ -n "${MODEL_S3_URI}" ]]; then
+  UPLOAD_ARGS+=(--model-s3-uri "${MODEL_S3_URI}")
+fi
+
+if [[ -n "${ONNX_PATH}" ]]; then
+  UPLOAD_ARGS+=(--onnx-path "${ONNX_PATH}")
+fi
+
+if [[ -n "${INPUT_NAME}" ]]; then
+  UPLOAD_ARGS+=(--input-name "${INPUT_NAME}")
+fi
+
+run uv run qc-cli ai-hub upload "${UPLOAD_ARGS[@]}"
+
+if [[ "${DOWNLOAD}" == false ]]; then
+  exit 0
+fi
+
+DOWNLOAD_ARGS=(--config "${CONFIG_PATH}")
+if [[ -n "${OUTPUT_PATH}" ]]; then
+  DOWNLOAD_ARGS+=(--output "${OUTPUT_PATH}")
+fi
+
+run uv run qc-cli ai-hub download "${DOWNLOAD_ARGS[@]}"
--- a/examples/training/run_training.sh
+++ b/examples/training/run_training.sh
@@ -72,10 +72,11 @@ if [[ "${SKIP_UPLOAD}" == false ]]; then
  run uv run qc-cli upload "${DATASET_DIR}" --config "${CONFIG_PATH}"
 fi

-TRAIN_OUTPUT="$(uv run qc-cli train start --config "${CONFIG_PATH}")"
-echo "${TRAIN_OUTPUT}"
+TRAIN_OUTPUT_FILE="$(mktemp)"
+trap 'rm -f "${TRAIN_OUTPUT_FILE}"' EXIT
+run uv run qc-cli train start --config "${CONFIG_PATH}" | tee "${TRAIN_OUTPUT_FILE}"

-JOB_NAME="$(printf '%s\n' "${TRAIN_OUTPUT}" | grep -Eo 'qc-cli-[0-9]{8}-[0-9]{6}' | tail -n 1)"
+JOB_NAME="$(grep -Eo 'qc-cli-[0-9]{8}-[0-9]{6}' "${TRAIN_OUTPUT_FILE}" | tail -n 1)"
 if [[ -z "${JOB_NAME}" ]]; then
  echo "Could not find training job name in qc-cli output." >&2
  exit 1
--- a/examples/training/source/train.py
+++ b/examples/training/source/train.py
@@ -126,10 +126,6 @@ def export_onnx(model: nn.Module, model_dir: Path, image_size: int) -> None:
        do_constant_folding=True,
        input_names=["input"],
        output_names=["logits"],
-        dynamic_axes={
-            "input": {0: "batch_size"},
-            "logits": {0: "batch_size"},
-        },
    )


--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,20 +5,18 @@ build-backend = "hatchling.build"
 [project]
 name = "qc-cli"
 version = "0.1.0"
-description = "CLI for SageMaker ONNX training and Qualcomm AI Hub optimization"
+description = "CLI for training and deploying models for Qualcomm AI Hub"
 requires-python = ">=3.13"
 dependencies = [
    "aws-cdk-lib>=2.180.0",
    "typer==0.25.0",
    "boto3>=1.34,<1.42",
    "constructs>=10.0.0",
+    "mlflow>=3.0",
+    "numpy>=1.26",
    "pydantic>=2.13.3",
    "pyyaml>=6.0.3",
-]
-
-[project.optional-dependencies]
-mlflow = [
-    "mlflow>=3.0",
+    "qai-hub>=0.49.0",
    "sagemaker-mlflow>=0.4.0",
 ]

@@ -31,7 +29,6 @@ packages = ["src"]
 [dependency-groups]
 dev = [
    "boto3-stubs[iam,s3,sagemaker]",
-    "pytest>=8.0",
    "pyright>=1.1.409",
    "types-PyYAML",
    "ruff>=0.4",
--- a/src/aws/mlflow.py
+++ b/src/aws/mlflow.py
@@ -1,3 +1,6 @@
+import os
+from collections.abc import Generator
+from contextlib import contextmanager
 from typing import Any, cast

 import boto3
@@ -28,3 +31,44 @@ def get_tracking_server_arn(region: str, profile: str, name: str) -> str:
    if not arn:
        raise ValueError(f"MLflow tracking server has no ARN: {name}")
    return str(arn)
+
+
+def create_presigned_tracking_server_url(region: str, profile: str, name: str) -> str:
+    client = boto3.Session(profile_name=profile, region_name=region).client("sagemaker")
+    response = client.create_presigned_mlflow_tracking_server_url(TrackingServerName=name)
+    return str(response["AuthorizedUrl"])
+
+
+@contextmanager
+def tracking_auth_env(profile: str, region: str) -> Generator[None]:
+    credentials = boto3.Session(profile_name=profile, region_name=region).get_credentials()
+    if credentials is None:
+        raise RuntimeError(f"AWS credentials could not be resolved for profile '{profile}'.")
+
+    frozen_credentials = credentials.get_frozen_credentials()
+    if not frozen_credentials.access_key or not frozen_credentials.secret_key:
+        raise RuntimeError(f"AWS credentials are incomplete for profile '{profile}'.")
+
+    env_updates = {
+        "AWS_PROFILE": profile,
+        "AWS_DEFAULT_REGION": region,
+        "AWS_REGION": region,
+        "AWS_ACCESS_KEY_ID": frozen_credentials.access_key,
+        "AWS_SECRET_ACCESS_KEY": frozen_credentials.secret_key,
+    }
+    if frozen_credentials.token:
+        env_updates["AWS_SESSION_TOKEN"] = frozen_credentials.token
+
+    restore_keys = set(env_updates) | {"AWS_SESSION_TOKEN"}
+    previous_env = {key: os.environ.get(key) for key in restore_keys}
+    try:
+        os.environ.update(env_updates)
+        if not frozen_credentials.token:
+            os.environ.pop("AWS_SESSION_TOKEN", None)
+        yield
+    finally:
+        for key, value in previous_env.items():
+            if value is None:
+                os.environ.pop(key, None)
+            else:
+                os.environ[key] = value
--- a/src/aws/s3.py
+++ b/src/aws/s3.py
@@ -21,6 +21,24 @@ def upload_file(
    return f"s3://{bucket}/{s3_key}"


+def download_file(
+    region: str,
+    profile: str,
+    s3_uri: str,
+    local_path: str,
+) -> str:
+    if not s3_uri.startswith("s3://"):
+        raise ValueError(f"Expected S3 URI, got: {s3_uri}")
+    bucket_key = s3_uri.removeprefix("s3://")
+    bucket, _, key = bucket_key.partition("/")
+    if not bucket or not key:
+        raise ValueError(f"Expected S3 URI with bucket and key, got: {s3_uri}")
+    dest = Path(local_path)
+    dest.parent.mkdir(parents=True, exist_ok=True)
+    _client(region, profile).download_file(bucket, key, str(dest))
+    return str(dest)
+
+
 def upload_dir(
    region: str,
    profile: str,
--- a/src/aws/sagemaker.py
+++ b/src/aws/sagemaker.py
@@ -121,6 +121,16 @@ def get_training_job_status(session: Boto3SessionKwargs, job_name: str) -> Train
    )


+def get_model_artifacts(region: str, profile: str, job_name: str) -> str:
+    resp = boto3.Session(profile_name=profile, region_name=region).client("sagemaker").describe_training_job(
+        TrainingJobName=job_name
+    )
+    artifact = resp.get("ModelArtifacts", {}).get("S3ModelArtifacts")
+    if not artifact:
+        raise RuntimeError(f"Training job '{job_name}' does not have model artifacts yet.")
+    return str(artifact)
+
+
 def list_training_jobs(
    session: Boto3SessionKwargs,
    max_results: int = 10,
--- a/src/cloud/init.py
+++ b/src/cloud/init.py
@@ -0,0 +1 @@
+"""Cloud provider adapters."""
--- a/src/cloud/mlflow.py
+++ b/src/cloud/mlflow.py
@@ -0,0 +1,77 @@
+from contextlib import AbstractContextManager
+from dataclasses import dataclass
+from typing import Any, Protocol
+
+from src.aws import mlflow as aws_mlflow
+from src.config import Config
+
+
+class MlflowTrackingBackend(Protocol):
+    @property
+    def provider_name(self) -> str: ...
+
+    @property
+    def profile(self) -> str: ...
+
+    @property
+    def region(self) -> str: ...
+
+    def get_tracking_uri(self, tracking_server_name: str) -> str: ...
+
+    def auth_env(self) -> AbstractContextManager[None]: ...
+
+    def training_run_params(self, training_job: Any, *, region: str, profile: str, role_arn: str) -> dict[str, Any]: ...
+
+    def training_run_tags(self, training_job: Any) -> dict[str, Any]: ...
+
+    def training_status_params(self, training_job_status: Any) -> dict[str, Any]: ...
+
+    def model_version_tags(self, training_job_status: Any) -> dict[str, Any]: ...
+
+
+@dataclass(frozen=True)
+class AwsMlflowTrackingBackend:
+    profile: str
+    region: str
+    provider_name: str = "aws"
+
+    def get_tracking_uri(self, tracking_server_name: str) -> str:
+        return aws_mlflow.get_tracking_server_arn(self.region, self.profile, tracking_server_name)
+
+    def auth_env(self) -> AbstractContextManager[None]:
+        return aws_mlflow.tracking_auth_env(self.profile, self.region)
+
+    def training_run_params(self, training_job: Any, *, region: str, profile: str, role_arn: str) -> dict[str, Any]:
+        return {
+            "provider.name": self.provider_name,
+            "provider.region": region,
+            "provider.profile": profile,
+            "sagemaker.role_arn": role_arn,
+            "sagemaker.job_name": training_job.job_name,
+            "sagemaker.training_image": training_job.image_uri,
+            "sagemaker.instance_type": training_job.instance_type,
+            "sagemaker.instance_count": training_job.instance_count,
+            "sagemaker.s3_train_uri": training_job.s3_train_uri,
+            "sagemaker.s3_output_path": training_job.s3_output_path,
+            "sagemaker.entry_point": training_job.entry_point,
+            "sagemaker.source_dir": training_job.source_dir,
+        }
+
+    def training_run_tags(self, training_job: Any) -> dict[str, Any]:
+        return {"sagemaker.job_name": training_job.job_name}
+
+    def training_status_params(self, training_job_status: Any) -> dict[str, Any]:
+        return {
+            "sagemaker.training_status": training_job_status.status,
+            "sagemaker.created_at": training_job_status.created,
+            "sagemaker.modified_at": training_job_status.modified,
+            "sagemaker.model_artifacts": training_job_status.model_artifacts,
+            "sagemaker.failure_reason": training_job_status.failure_reason,
+        }
+
+    def model_version_tags(self, training_job_status: Any) -> dict[str, Any]:
+        return {"sagemaker.job_name": training_job_status.name}
+
+
+def mlflow_tracking_backend_from_config(cfg: Config) -> MlflowTrackingBackend:
+    return AwsMlflowTrackingBackend(profile=cfg.aws.profile, region=cfg.aws.region)
--- a/src/commands/ai_hub.py
+++ b/src/commands/ai_hub.py
@@ -0,0 +1,406 @@
+from collections.abc import Mapping, Sequence
+from datetime import datetime
+from enum import StrEnum
+from pathlib import Path
+from typing import Any
+
+import qai_hub.hub as hub
+import typer
+from qai_hub.client import Device
+
+from src import state as state_ops
+from src.commands.utils import CONFIG_OPT, CONSOLE, load_cfg
+from src.config import Config
+from src.qualcomm import aihub_jobs
+from src.qualcomm.artifacts import resolve_onnx
+
+app = typer.Typer(help="Quantize, compile, validate, profile, and download models with Qualcomm AI Hub")
+
+_RUNTIME_EXTENSIONS = {
+    "tflite": "tflite",
+    "qnn_context_binary": "bin",
+    "onnx": "onnx",
+}
+
+
+class UploadStep(StrEnum):
+    quantize = "quantize"
+    compile = "compile"
+    validate = "validate"
+    profile = "profile"
+
+
+def _input_specs(cfg: Config) -> dict[str, tuple[tuple[int, ...], str]]:
+    specs = {name: (tuple(shape), dtype) for name, (shape, dtype) in cfg.aihub.input_specs.items()}
+    if not specs:
+        CONSOLE.print("[red]aihub.input_specs must define at least one input.[/red]")
+        raise typer.Exit(1)
+    return specs
+
+
+def _load_inputs(
+    input_file: Path,
+    specs: Mapping[str, tuple[Sequence[int], str]],
+    input_name: str | None = None,
+) -> dict[str, Any]:
+    import numpy as np
+
+    if not input_file.exists():
+        raise FileNotFoundError(f"File not found: {input_file}")
+
+    if input_file.suffix == ".npz":
+        loaded = np.load(input_file)
+        missing = set(specs) - set(loaded.files)
+        if missing:
+            raise ValueError(f"Missing input(s) in NPZ: {', '.join(sorted(missing))}")
+        return {name: loaded[name] for name in specs}
+
+    if input_file.suffix == ".npy":
+        if input_name is None:
+            if len(specs) != 1:
+                raise ValueError("--input-name is required when config has multiple inputs")
+            input_name = next(iter(specs))
+        if input_name not in specs:
+            raise ValueError(f"Input name '{input_name}' is not defined in aihub.input_specs")
+        return {input_name: np.load(input_file)}
+
+    raise ValueError("Input file must be .npz or .npy")
+
+
+def _load_calibration(path: Path, specs: Mapping[str, tuple[Sequence[int], str]]) -> dict[str, Any]:
+    import numpy as np
+
+    if path.is_file():
+        return _load_inputs(path, specs)
+
+    if not path.is_dir():
+        raise FileNotFoundError(f"Calibration path not found: {path}")
+
+    if len(specs) != 1:
+        raise ValueError("Directory calibration data is supported only for single-input models.")
+    input_name = next(iter(specs))
+    samples = [np.load(p) for p in sorted(path.glob("*.npy"))]
+    if not samples:
+        raise ValueError(f"No .npy calibration samples found in {path}")
+    return {input_name: samples}
+
+
+def _job_name(cfg: Config, operation: str) -> str | None:
+    if not cfg.aihub.job_name:
+        return None
+    return f"{cfg.aihub.job_name}-{operation}"
+
+
+def _model_id_or_state(config_path: str, model_id: str | None, *, quantized: bool = False) -> str:
+    st = state_ops.store(config_path)
+    resolved = model_id or (st.get_last_quantized_model_id() if quantized else st.get_last_compiled_model_id())
+    if not resolved:
+        source = "quantized" if quantized else "compiled"
+        CONSOLE.print(f"[red]No {source} model found. Pass --model-id or run the previous AI Hub step first.[/red]")
+        raise typer.Exit(1)
+    return resolved
+
+
+def _device_selector(device: Device) -> str:
+    parts: list[str] = []
+    if device.name:
+        parts.append(f"name={device.name!r}")
+    if device.os:
+        parts.append(f"os={device.os!r}")
+    if device.attributes:
+        parts.append(f"attributes={device.attributes!r}")
+    return ", ".join(parts) if parts else "empty selector"
+
+
+def _validate_device(cfg: Config) -> None:
+    device = cfg.aihub.device
+    try:
+        matches = hub.get_devices(name=device.name, os=device.os, attributes=device.attributes)
+    except Exception as e:
+        CONSOLE.print(f"[red]Unable to validate AI Hub device {_device_selector(device)}: {e}[/red]")
+        raise typer.Exit(1)
+
+    if matches:
+        return
+
+    CONSOLE.print(f"[red]AI Hub device not found: {_device_selector(device)}[/red]")
+    CONSOLE.print("Run [bold]qai-hub list-devices[/bold] to see valid device names.")
+    raise typer.Exit(1)
+
+
+def _quantize_step(
+    cfg: Config,
+    config_path: str,
+    calibration_path: Path,
+    from_job: str | None,
+    model_s3_uri: str | None,
+    onnx_path: str | None,
+) -> str:
+    st = state_ops.store(config_path)
+    specs = _input_specs(cfg)
+    try:
+        resolved = resolve_onnx(
+            cfg=cfg,
+            output_dir=cfg.aihub.output_dir,
+            from_job=from_job,
+            model_s3_uri=model_s3_uri or st.get_last_model_artifact(),
+            onnx_path=onnx_path,
+            last_training_job=st.get_last_training_job(),
+        )
+        calibration_data = _load_calibration(calibration_path, specs)
+    except (FileNotFoundError, ValueError) as e:
+        CONSOLE.print(f"[red]{e}[/red]")
+        raise typer.Exit(1)
+
+    try:
+        result = aihub_jobs.submit_quantize_job(
+            resolved.onnx_path,
+            calibration_data,
+            cfg.aihub.quantize_options,
+            job_name=_job_name(cfg, "quantize"),
+            model_name=cfg.aihub.model_name,
+        )
+    except Exception as e:
+        CONSOLE.print(f"[red]AI Hub quantize failed: {e}[/red]")
+        raise typer.Exit(1)
+
+    st.update(
+        last_model_artifact=resolved.model_artifact,
+        last_quantize_job_id=result["job_id"],
+        last_quantized_model_id=result["model_id"],
+    )
+    CONSOLE.print(f"[green]✓[/green] Quantize job: [bold]{result['job_id']}[/bold]")
+    CONSOLE.print(f"[green]✓[/green] Quantized model: [bold]{result['model_id']}[/bold]")
+    return str(result["model_id"])
+
+
+def _compile_step(
+    cfg: Config,
+    config_path: str,
+    model_id: str | None,
+    from_job: str | None,
+    model_s3_uri: str | None,
+    onnx_path: str | None,
+    *,
+    prefer_quantized: bool,
+) -> str:
+    st = state_ops.store(config_path)
+    _validate_device(cfg)
+    specs = _input_specs(cfg)
+
+    model: Any
+    model_artifact: str | None = None
+    has_explicit_source = bool(from_job or model_s3_uri or onnx_path)
+    if model_id:
+        model = model_id
+    elif prefer_quantized and not has_explicit_source and st.get_last_quantized_model_id():
+        model = st.get_last_quantized_model_id()
+    else:
+        try:
+            resolved = resolve_onnx(
+                cfg=cfg,
+                output_dir=cfg.aihub.output_dir,
+                from_job=from_job,
+                model_s3_uri=model_s3_uri,
+                onnx_path=onnx_path,
+                last_training_job=st.get_last_training_job(),
+            )
+        except (FileNotFoundError, ValueError) as e:
+            CONSOLE.print(f"[red]{e}[/red]")
+            raise typer.Exit(1)
+        model = resolved.onnx_path
+        model_artifact = resolved.model_artifact
+
+    try:
+        result = aihub_jobs.submit_compile_job(
+            model=model,
+            device=cfg.aihub.device,
+            input_specs=specs,
+            target_runtime=cfg.aihub.target_runtime,
+            options=cfg.aihub.compile_options,
+            job_name=_job_name(cfg, "compile"),
+            model_name=cfg.aihub.model_name if isinstance(model, Path) else None,
+        )
+    except Exception as e:
+        CONSOLE.print(f"[red]AI Hub compile failed: {e}[/red]")
+        raise typer.Exit(1)
+
+    updates: dict[str, Any] = {
+        "last_compile_job_id": result["job_id"],
+        "last_compiled_model_id": result["model_id"],
+    }
+    if model_artifact:
+        updates["last_model_artifact"] = model_artifact
+    st.update(**updates)
+    CONSOLE.print(f"[green]✓[/green] Compile job: [bold]{result['job_id']}[/bold]")
+    CONSOLE.print(f"[green]✓[/green] Compiled model: [bold]{result['model_id']}[/bold]")
+    return str(result["model_id"])
+
+
+def _validate_step(
+    cfg: Config,
+    config_path: str,
+    input_file: Path,
+    model_id: str | None,
+    input_name: str | None,
+) -> str:
+    _validate_device(cfg)
+    specs = _input_specs(cfg)
+    resolved_model_id = _model_id_or_state(config_path, model_id)
+    try:
+        inputs = _load_inputs(input_file, specs, input_name)
+    except (FileNotFoundError, ValueError) as e:
+        CONSOLE.print(f"[red]{e}[/red]")
+        raise typer.Exit(1)
+
+    run = datetime.now().strftime("%Y%m%d-%H%M%S")
+    out_dir = Path(cfg.aihub.output_dir) / run / "validation"
+    try:
+        result = aihub_jobs.submit_inference_job(
+            resolved_model_id,
+            cfg.aihub.device,
+            inputs,
+            out_dir,
+            job_name=_job_name(cfg, "validate"),
+        )
+    except Exception as e:
+        CONSOLE.print(f"[red]AI Hub inference failed: {e}[/red]")
+        raise typer.Exit(1)
+
+    state_ops.store(config_path).update(last_inference_job_id=result["job_id"])
+    CONSOLE.print(f"[green]✓[/green] Inference job: [bold]{result['job_id']}[/bold]")
+    outputs = result.get("outputs")
+    if isinstance(outputs, dict):
+        for name, value in outputs.items():
+            CONSOLE.print(f"  {name}: shape={getattr(value, 'shape', '?')}")
+    CONSOLE.print(f"Outputs: [cyan]{out_dir}[/cyan]")
+    return str(result["job_id"])
+
+
+def _profile_step(cfg: Config, config_path: str, model_id: str | None) -> str:
+    _validate_device(cfg)
+    resolved_model_id = _model_id_or_state(config_path, model_id)
+    try:
+        result = aihub_jobs.submit_profile_job(
+            resolved_model_id,
+            cfg.aihub.device,
+            cfg.aihub.profile_options,
+            job_name=_job_name(cfg, "profile"),
+        )
+    except Exception as e:
+        CONSOLE.print(f"[red]AI Hub profile failed: {e}[/red]")
+        raise typer.Exit(1)
+    state_ops.store(config_path).update(last_profile_job_id=result["job_id"])
+    CONSOLE.print(f"[green]✓[/green] Profile job: [bold]{result['job_id']}[/bold]")
+    return str(result["job_id"])
+
+
+@app.command()
+def quantize(
+    calibration_path: Path = typer.Argument(..., help="Calibration .npz file or directory of .npy samples"),
+    from_job: str | None = typer.Option(None, "--from-job", help="Training job name whose model artifact should quantize"),
+    model_s3_uri: str | None = typer.Option(None, "--model-s3-uri", help="S3 URI of model.tar.gz to quantize"),
+    onnx_path: str | None = typer.Option(
+        None, "--onnx-path", help="Local ONNX path or ONNX path inside extracted artifact"
+    ),
+    config: str = CONFIG_OPT,
+) -> None:
+    """Quantize an ONNX model to INT8."""
+    cfg = load_cfg(config)
+    _quantize_step(cfg, config, calibration_path, from_job, model_s3_uri, onnx_path)
+
+
+@app.command()
+def compile(
+    model_id: str | None = typer.Option(None, "--model-id", help="AI Hub model ID to compile"),
+    from_job: str | None = typer.Option(None, "--from-job", help="Training job name whose model artifact should compile"),
+    model_s3_uri: str | None = typer.Option(None, "--model-s3-uri", help="S3 URI of model.tar.gz to compile"),
+    onnx_path: str | None = typer.Option(
+        None, "--onnx-path", help="Local ONNX path or ONNX path inside extracted artifact"
+    ),
+    config: str = CONFIG_OPT,
+) -> None:
+    """Compile a model for the configured Qualcomm AI Hub target."""
+    cfg = load_cfg(config)
+    _compile_step(cfg, config, model_id, from_job, model_s3_uri, onnx_path, prefer_quantized=True)
+
+
+@app.command()
+def validate(
+    input_file: Path = typer.Argument(..., help="NumPy .npz or .npy inputs to run on device"),
+    model_id: str | None = typer.Option(None, "--model-id", help="AI Hub compiled model ID"),
+    input_name: str | None = typer.Option(None, "--input-name", help="Input name for .npy files"),
+    config: str = CONFIG_OPT,
+) -> None:
+    """Run an AI Hub inference job using sample inputs."""
+    cfg = load_cfg(config)
+    _validate_step(cfg, config, input_file, model_id, input_name)
+
+
+@app.command()
+def profile(
+    model_id: str | None = typer.Option(None, "--model-id", help="AI Hub compiled model ID"),
+    config: str = CONFIG_OPT,
+) -> None:
+    """Profile a compiled model on the configured AI Hub device."""
+    cfg = load_cfg(config)
+    _profile_step(cfg, config, model_id)
+
+
+@app.command()
+def upload(
+    calibration_path: Path = typer.Argument(..., help="Calibration .npz file or directory of .npy samples"),
+    input_file: Path = typer.Argument(..., help="Validation .npz or .npy inputs to run on device"),
+    from_step: UploadStep = typer.Option(UploadStep.quantize, "--from-step", help="Resume from this Workbench step"),
+    from_job: str | None = typer.Option(None, "--from-job", help="Training job name whose model artifact should upload"),
+    model_s3_uri: str | None = typer.Option(None, "--model-s3-uri", help="S3 URI of model.tar.gz to upload"),
+    onnx_path: str | None = typer.Option(
+        None, "--onnx-path", help="Local ONNX path or ONNX path inside extracted artifact"
+    ),
+    input_name: str | None = typer.Option(None, "--input-name", help="Input name for .npy validation files"),
+    config: str = CONFIG_OPT,
+) -> None:
+    """Run the four Workbench upload steps: quantize, compile, validate, and profile."""
+    cfg = load_cfg(config)
+    steps = [UploadStep.quantize, UploadStep.compile, UploadStep.validate, UploadStep.profile]
+    selected = steps[steps.index(from_step) :]
+
+    quantized_model_id: str | None = None
+    compiled_model_id: str | None = None
+    if UploadStep.quantize in selected:
+        quantized_model_id = _quantize_step(cfg, config, calibration_path, from_job, model_s3_uri, onnx_path)
+    if UploadStep.compile in selected:
+        compiled_model_id = _compile_step(
+            cfg,
+            config,
+            model_id=quantized_model_id,
+            from_job=from_job,
+            model_s3_uri=model_s3_uri,
+            onnx_path=onnx_path,
+            prefer_quantized=True,
+        )
+    if UploadStep.validate in selected:
+        _validate_step(cfg, config, input_file, compiled_model_id, input_name)
+    if UploadStep.profile in selected:
+        _profile_step(cfg, config, compiled_model_id)
+
+
+@app.command()
+def download(
+    model_id: str | None = typer.Option(None, "--model-id", help="AI Hub compiled model ID"),
+    output: Path | None = typer.Option(None, "--output", "-o", help="Destination file path"),
+    config: str = CONFIG_OPT,
+) -> None:
+    """Download the last compiled deployable artifact from AI Hub."""
+    cfg = load_cfg(config)
+    resolved_model_id = _model_id_or_state(config, model_id)
+    ext = _RUNTIME_EXTENSIONS.get(cfg.aihub.target_runtime, cfg.aihub.target_runtime)
+    dest = output or (Path(cfg.aihub.output_dir) / f"model.{ext}")
+
+    try:
+        written = aihub_jobs.download_model(resolved_model_id, dest)
+    except Exception as e:
+        CONSOLE.print(f"[red]AI Hub download failed: {e}[/red]")
+        raise typer.Exit(1)
+    state_ops.store(config).update(last_downloaded_model=written)
+    CONSOLE.print(f"[green]✓[/green] Downloaded model: [cyan]{written}[/cyan]")
--- a/src/commands/infra.py
+++ b/src/commands/infra.py
@@ -77,7 +77,8 @@ def setup(
    if outputs.get("SageMakerRoleArn"):
        CONSOLE.print(f"[green]✓[/green] IAM role:  {outputs['SageMakerRoleArn']}")
    if cfg.mlflow.mode is MlflowMode.create and outputs.get("MlflowTrackingServerArn"):
-        CONSOLE.print(f"[green]✓[/green] MLflow:    {outputs['MlflowTrackingServerArn']}")
+        mlflow_name = outputs.get("MlflowTrackingServerName", cfg.managed_mlflow_tracking_server_name)
+        CONSOLE.print(f"[green]✓[/green] MLflow:    {mlflow_name}")
    elif cfg.mlflow.mode is MlflowMode.existing:
        CONSOLE.print(f"[green]✓[/green] MLflow:    {cfg.mlflow.tracking_server_name}")
    CONSOLE.print("\n[bold green]Infrastructure ready.[/bold green]")
@@ -102,7 +103,7 @@ def status(config: str = CONFIG_OPT) -> None:
        if cfg.mlflow.mode is not MlflowMode.disabled:
            table.add_row(
                "MLflow",
-                cfg.mlflow.tracking_server_name or "-",
+                cfg.effective_mlflow_tracking_server_name or "-",
                "[red]unknown[/red]",
                "-",
            )
@@ -126,7 +127,7 @@ def status(config: str = CONFIG_OPT) -> None:
    if cfg.mlflow.mode is MlflowMode.create:
        table.add_row(
            "MLflow",
-            cfg.mlflow.tracking_server_name or "-",
+            outputs.get("MlflowTrackingServerName", cfg.managed_mlflow_tracking_server_name),
            "[green]managed[/green]",
            outputs.get("MlflowTrackingServerArn", outputs.get("MlflowArtifactUri", "-")),
        )
@@ -209,6 +210,7 @@ def _role_name(configured_name: str, role_arn: str) -> str:
        return role_arn.rsplit("/", 1)[-1]
    return "-"

+
 def _destroy_account_id(config_path: str, cfg: Config) -> str:
    config_dir = str(Path(config_path).parent)
    state = read_infra_state(config_dir)
--- a/src/commands/init.py
+++ b/src/commands/init.py
@@ -0,0 +1,40 @@
+import secrets
+from pathlib import Path
+
+import typer
+import yaml
+
+from src.commands.utils import CONSOLE
+from src.config import GENERATED_STACK_PREFIX, Config, InfraConfig, S3Config
+
+app = typer.Typer()
+
+
+@app.command()
+def init(
+    output: str = typer.Option("config.yaml", help="Destination path for the config file"),
+    force: bool = typer.Option(False, "--force", "-f", help="Overwrite an existing config file"),
+) -> None:
+    """Write a starter config.yaml to the current directory."""
+    dest = Path(output)
+    if dest.exists() and not force:
+        CONSOLE.print(f"[yellow]{dest} already exists.[/yellow] Use --force to overwrite.")
+        raise typer.Exit(1)
+
+    config = _new_isolated_config()
+    dest.parent.mkdir(parents=True, exist_ok=True)
+    config_data = config.model_dump(mode="json")
+    config_data["sagemaker"].pop("role_name", None)
+    with open(dest, "w") as f:
+        yaml.safe_dump(config_data, f, sort_keys=False)
+
+    CONSOLE.print(f"[green]✓[/green] Config written to [bold]{dest}[/bold]")
+    CONSOLE.print("Edit [cyan]sagemaker.training.image_uri[/cyan] before running training commands.")
+
+
+def _new_isolated_config() -> Config:
+    suffix = secrets.token_hex(6)
+    namespace = f"{GENERATED_STACK_PREFIX}{suffix}"
+    config = Config(infra=InfraConfig(stack_name=namespace))
+    config.s3 = S3Config(bucket=f"{namespace}-data")
+    return config
--- a/src/commands/mlflow.py
+++ b/src/commands/mlflow.py
@@ -0,0 +1,41 @@
+import webbrowser
+
+import typer
+
+from src.aws import mlflow as aws_mlflow
+from src.commands.utils import CONFIG_OPT, CONSOLE, load_cfg
+
+app = typer.Typer(help="Manage MLflow tracking server access")
+
+
+@app.command(name="open")
+def open_mlflow(config: str = CONFIG_OPT) -> None:
+    """Open a presigned URL for the configured MLflow tracking server."""
+    cfg = load_cfg(config)
+    tracking_server_name = cfg.effective_mlflow_tracking_server_name
+    if not tracking_server_name:
+        CONSOLE.print("[red]MLflow is disabled in config.yaml.[/red]")
+        raise typer.Exit(1)
+
+    try:
+        url = aws_mlflow.create_presigned_tracking_server_url(
+            cfg.aws.region,
+            cfg.aws.profile,
+            tracking_server_name,
+        )
+    except Exception as e:
+        CONSOLE.print("[yellow]Could not create a SageMaker MLflow UI URL.[/yellow]")
+        CONSOLE.print(f"Tracking server: [cyan]{tracking_server_name}[/cyan]")
+        CONSOLE.print(f"Reason: {e}")
+        CONSOLE.print(
+            "This command can create presigned URLs only for MLflow tracking servers managed by "
+            "Amazon SageMaker. If this is an external MLflow server, open it with that server's own URL."
+        )
+        raise typer.Exit(1)
+
+    CONSOLE.print(f"MLflow tracking server: [cyan]{tracking_server_name}[/cyan]")
+    CONSOLE.print(f"MLflow UI: {url}")
+    if webbrowser.open(url):
+        CONSOLE.print("[green]✓[/green] Opened MLflow UI in your browser.")
+    else:
+        CONSOLE.print("[yellow]Could not open a browser automatically. Open the URL above manually.[/yellow]")
--- a/src/commands/train.py
+++ b/src/commands/train.py
@@ -8,7 +8,7 @@ from src import state as state_ops
 from src.aws import iam
 from src.aws import sagemaker as sm_ops
 from src.commands.utils import CONFIG_OPT, CONSOLE, load_cfg
-from src.config import Config
+from src.config import Config, MlflowMode
 from src.infra.state import read_infra_state
 from src.tracking.mlflow import MlflowTracker

@@ -101,6 +101,7 @@ def start(config: str = CONFIG_OPT) -> None:
    CONSOLE.print(f"[green]✓[/green] Job submitted: [bold]{job_name}[/bold]")
    if run_id:
        CONSOLE.print(f"MLflow run: [cyan]{run_id}[/cyan]")
+        CONSOLE.print("Open MLflow: [cyan]qc-cli mlflow open[/cyan]")
    CONSOLE.print("Track progress: [cyan]qc-cli train status[/cyan]")


@@ -137,7 +138,8 @@ def status(
    run_id = job_state.get("mlflow_run_id")
    already_registered = job_state.get("registered_model_version")
    if run_id and not already_registered and status.status in {"Completed", "Failed", "Stopped"}:
-        version = _tracker(cfg).finalize_training_run(
+        tracker = _tracker(cfg)
+        version = tracker.finalize_training_run(
            run_id=str(run_id),
            training_job_status=status,
        )
@@ -146,8 +148,10 @@ def status(
            updates["registered_model_version"] = version
        st.update_training_job(job_name, **updates)
        if version:
-            st.set_latest_prerelease_model_version(version)
-            CONSOLE.print(f"MLflow model version: [cyan]{version}[/cyan] ([cyan]prerelease-latest[/cyan])")
+            st.set_latest_experiment_model_version(version)
+            CONSOLE.print(f"MLflow model version: [cyan]{version}[/cyan] ([cyan]experiment-latest[/cyan])")
+    if run_id and cfg.mlflow.mode is not MlflowMode.disabled:
+        CONSOLE.print("Open MLflow: [cyan]qc-cli mlflow open[/cyan]")


@app.command(name="list")
--- a/src/commands/upload.py
+++ b/src/commands/upload.py
@@ -0,0 +1,70 @@
+from pathlib import Path
+
+import typer
+from rich.progress import BarColumn, Progress, SpinnerColumn, TaskProgressColumn, TextColumn
+
+from src.aws import s3 as s3_ops
+from src.commands.utils import CONFIG_OPT, CONSOLE, load_cfg
+
+app = typer.Typer()
+
+
+@app.command()
+def upload(
+    path: Path = typer.Argument(..., help="Local file or directory to upload"),
+    s3_key: str | None = typer.Option(None, "--s3-key", help="S3 key for file uploads"),
+    config: str = CONFIG_OPT,
+) -> None:
+    """Upload a local file or directory to S3."""
+    cfg = load_cfg(config)
+
+    if path.is_file():
+        key = s3_key or f"{cfg.s3.data_prefix.rstrip('/')}/{path.name}"
+        try:
+            with CONSOLE.status(f"Uploading {path.name}..."):
+                uri = s3_ops.upload_file(cfg.aws.region, cfg.aws.profile, cfg.s3.bucket, str(path), key)
+        except Exception as e:
+            CONSOLE.print(f"[red]Upload failed: {e}[/red]")
+            raise typer.Exit(1)
+
+        CONSOLE.print(f"[green]✓[/green] {path.name} -> {uri}")
+        return
+
+    if path.is_dir():
+        if s3_key is not None:
+            CONSOLE.print("[red]--s3-key can only be used when uploading a single file.[/red]")
+            raise typer.Exit(1)
+
+        files = [file for file in path.rglob("*") if file.is_file()]
+        if not files:
+            CONSOLE.print("[yellow]No files found in directory.[/yellow]")
+            raise typer.Exit(0)
+
+        prefix = cfg.s3.data_prefix
+        CONSOLE.print(f"Uploading {len(files)} files to s3://{cfg.s3.bucket}/{prefix.rstrip('/')}/")
+        try:
+            with Progress(
+                SpinnerColumn(),
+                TextColumn("[progress.description]{task.description}"),
+                BarColumn(),
+                TaskProgressColumn(),
+                console=CONSOLE,
+            ) as progress:
+                task = progress.add_task("Uploading...", total=len(files))
+                count = s3_ops.upload_dir(
+                    cfg.aws.region,
+                    cfg.aws.profile,
+                    cfg.s3.bucket,
+                    str(path),
+                    prefix,
+                    on_progress=lambda: progress.advance(task),
+                )
+        except Exception as e:
+            CONSOLE.print(f"[red]Upload failed: {e}[/red]")
+            raise typer.Exit(1)
+
+        CONSOLE.print(f"[green]✓[/green] Uploaded {count} files to s3://{cfg.s3.bucket}/{prefix.rstrip('/')}/")
+        return
+
+    CONSOLE.print(f"[red]Path not found: {path}[/red]")
+    raise typer.Exit(1)
--- a/src/config.py
+++ b/src/config.py
@@ -1,19 +1,20 @@
 import re
-from enum import Enum
+from enum import StrEnum
 from typing import Any, Literal, TypedDict

 from mypy_boto3_s3.literals import BucketLocationConstraintType
 from mypy_boto3_sagemaker.literals import TrainingInstanceTypeType
-from pydantic import BaseModel, Field, model_validator
+from pydantic import BaseModel, Field, field_validator, model_validator
+from qai_hub.client import Device


-class MlflowMode(str, Enum):
+class MlflowMode(StrEnum):
    disabled = "disabled"
    create = "create"
    existing = "existing"


-class MlflowServerSize(str, Enum):
+class MlflowServerSize(StrEnum):
    small = "Small"
    medium = "Medium"
    large = "Large"
@@ -80,6 +81,25 @@ class SageMakerConfig(BaseModel):
    training: TrainingConfig = Field(default_factory=TrainingConfig)


+class AIHubConfig(BaseModel):
+    device: Device = Field(default_factory=lambda: Device("Samsung Galaxy S25 (Family)"))
+    target_runtime: str = "tflite"
+    input_specs: dict[str, tuple[list[int], str]] = Field(default_factory=dict)
+    job_name: str | None = None
+    model_name: str | None = None
+    compile_options: str | None = None
+    profile_options: str | None = None
+    quantize_options: str | None = None
+    output_dir: str = "build/qai-hub"
+
+    @field_validator("device", mode="before")
+    @classmethod
+    def parse_device(cls, value: Any) -> Any:
+        if isinstance(value, str):
+            return Device(value)
+        return value
+
+
 class MlflowConfig(BaseModel):
    mode: MlflowMode = MlflowMode.disabled
    tracking_server_name: str | None = None
@@ -94,8 +114,8 @@ class MlflowConfig(BaseModel):

    @model_validator(mode="after")
    def require_tracking_server_name(self) -> "MlflowConfig":
-        if self.mode in {MlflowMode.create, MlflowMode.existing} and not self.tracking_server_name:
-            raise ValueError("mlflow.tracking_server_name is required when mlflow.mode is create or existing")
+        if self.mode is MlflowMode.existing and not self.tracking_server_name:
+            raise ValueError("mlflow.tracking_server_name is required when mlflow.mode is existing")
        return self


@@ -104,4 +124,17 @@ class Config(BaseModel):
    aws: AwsConfig = Field(default_factory=AwsConfig)
    s3: S3Config = Field(default_factory=S3Config)
    sagemaker: SageMakerConfig = Field(default_factory=SageMakerConfig)
+    aihub: AIHubConfig = Field(default_factory=AIHubConfig)
    mlflow: MlflowConfig = Field(default_factory=MlflowConfig)
+
+    @property
+    def managed_mlflow_tracking_server_name(self) -> str:
+        return f"{self.infra.stack_name}-mlflow"
+
+    @property
+    def effective_mlflow_tracking_server_name(self) -> str | None:
+        if self.mlflow.mode is MlflowMode.disabled:
+            return None
+        if self.mlflow.mode is MlflowMode.existing:
+            return self.mlflow.tracking_server_name
+        return self.managed_mlflow_tracking_server_name
--- a/src/infra/stack.py
+++ b/src/infra/stack.py
@@ -74,6 +74,7 @@ class QCStack(Stack):
        CfnOutput(self, "SageMakerRoleArn", value=role.attr_arn)

        if config.mlflow.mode is MlflowMode.create:
+            tracking_server_name = config.managed_mlflow_tracking_server_name
            artifact_prefix = config.mlflow.artifact_prefix.strip("/")
            artifact_uri = (
                f"s3://{data_bucket.bucket_name}/{artifact_prefix}/"
@@ -145,14 +146,14 @@ class QCStack(Stack):
                "MlflowTrackingServer",
                artifact_store_uri=artifact_uri,
                role_arn=mlflow_role.attr_arn,
-                tracking_server_name=config.mlflow.tracking_server_name or "",
+                tracking_server_name=tracking_server_name,
                automatic_model_registration=config.mlflow.automatic_model_registration,
                mlflow_version=config.mlflow.mlflow_version,
                tracking_server_size=config.mlflow.tracking_server_size.value,
                weekly_maintenance_window_start=config.mlflow.weekly_maintenance_window_start,
            )

-            CfnOutput(self, "MlflowTrackingServerName", value=config.mlflow.tracking_server_name or "")
+            CfnOutput(self, "MlflowTrackingServerName", value=tracking_server_name)
            CfnOutput(self, "MlflowTrackingServerArn", value=tracking_server.attr_tracking_server_arn)
            CfnOutput(self, "MlflowArtifactUri", value=artifact_uri)
            CfnOutput(self, "MlflowRoleArn", value=mlflow_role.attr_arn)
--- a/src/main.py
+++ b/src/main.py
@@ -1,114 +1,14 @@
-import secrets
-from pathlib import Path
-
 import typer
-import yaml
-from rich.console import Console
-from rich.progress import BarColumn, Progress, SpinnerColumn, TaskProgressColumn, TextColumn

-from src.aws import s3 as s3_ops
-from src.commands import infra, train
-from src.commands.utils import CONFIG_OPT, load_cfg
-from src.config import GENERATED_STACK_PREFIX, Config, InfraConfig, S3Config
+from src.commands import ai_hub, infra, init, mlflow, train, upload

 app = typer.Typer(
    help="qc-cli: End-to-end model managment for Qualcomm AI Hub.",
    no_args_is_help=True,
 )
+app.add_typer(init.app)
+app.add_typer(upload.app)
+app.add_typer(mlflow.app, name="mlflow")
 app.add_typer(infra.app, name="infra")
 app.add_typer(train.app, name="train")
-
-console = Console()
-
-
-@app.command()
-def init(
-    output: str = typer.Option("config.yaml", help="Destination path for the config file"),
-    force: bool = typer.Option(False, "--force", "-f", help="Overwrite an existing config file"),
-) -> None:
-    """Write a starter config.yaml to the current directory."""
-    dest = Path(output)
-    if dest.exists() and not force:
-        console.print(f"[yellow]{dest} already exists.[/yellow] Use --force to overwrite.")
-        raise typer.Exit(1)
-
-    config = _new_isolated_config()
-    dest.parent.mkdir(parents=True, exist_ok=True)
-    config_data = config.model_dump(mode="json")
-    config_data["sagemaker"].pop("role_name", None)
-    with open(dest, "w") as f:
-        yaml.safe_dump(config_data, f, sort_keys=False)
-
-    console.print(f"[green]✓[/green] Config written to [bold]{dest}[/bold]")
-    console.print(
-        "Edit [cyan]sagemaker.training.image_uri[/cyan] before running training commands."
-    )
-
-
-def _new_isolated_config() -> Config:
-    suffix = secrets.token_hex(6)
-    namespace = f"{GENERATED_STACK_PREFIX}{suffix}"
-    config = Config(infra=InfraConfig(stack_name=namespace))
-    config.s3 = S3Config(bucket=f"{namespace}-data")
-    return config
-
-
-@app.command()
-def upload(
-    path: Path = typer.Argument(..., help="Local file or directory to upload"),
-    s3_key: str | None = typer.Option(None, "--s3-key", help="S3 key for file uploads"),
-    config: str = CONFIG_OPT,
-) -> None:
-    """Upload a local file or directory to S3."""
-    cfg = load_cfg(config)
-
-    if path.is_file():
-        key = s3_key or f"{cfg.s3.data_prefix.rstrip('/')}/{path.name}"
-        try:
-            with console.status(f"Uploading {path.name}..."):
-                uri = s3_ops.upload_file(cfg.aws.region, cfg.aws.profile, cfg.s3.bucket, str(path), key)
-        except Exception as e:
-            console.print(f"[red]Upload failed: {e}[/red]")
-            raise typer.Exit(1)
-
-        console.print(f"[green]✓[/green] {path.name} -> {uri}")
-        return
-
-    if path.is_dir():
-        if s3_key is not None:
-            console.print("[red]--s3-key can only be used when uploading a single file.[/red]")
-            raise typer.Exit(1)
-
-        files = [file for file in path.rglob("*") if file.is_file()]
-        if not files:
-            console.print("[yellow]No files found in directory.[/yellow]")
-            raise typer.Exit(0)
-
-        prefix = cfg.s3.data_prefix
-        console.print(f"Uploading {len(files)} files to s3://{cfg.s3.bucket}/{prefix.rstrip('/')}/")
-        try:
-            with Progress(
-                SpinnerColumn(),
-                TextColumn("[progress.description]{task.description}"),
-                BarColumn(),
-                TaskProgressColumn(),
-                console=console,
-            ) as progress:
-                task = progress.add_task("Uploading...", total=len(files))
-                count = s3_ops.upload_dir(
-                    cfg.aws.region,
-                    cfg.aws.profile,
-                    cfg.s3.bucket,
-                    str(path),
-                    prefix,
-                    on_progress=lambda: progress.advance(task),
-                )
-        except Exception as e:
-            console.print(f"[red]Upload failed: {e}[/red]")
-            raise typer.Exit(1)
-
-        console.print(f"[green]✓[/green] Uploaded {count} files to s3://{cfg.s3.bucket}/{prefix.rstrip('/')}/")
-        return
-
-    console.print(f"[red]Path not found: {path}[/red]")
-    raise typer.Exit(1)
+app.add_typer(ai_hub.app, name="ai-hub")
--- a/src/qualcomm/init.py
+++ b/src/qualcomm/init.py
@@ -0,0 +1 @@
+
--- a/src/qualcomm/aihub_jobs.py
+++ b/src/qualcomm/aihub_jobs.py
@@ -0,0 +1,129 @@
+from pathlib import Path
+from typing import Any, TypedDict
+
+import qai_hub.hub as hub
+from qai_hub.client import CompileJob, Device, InferenceJob, Model, ProfileJob, QuantizeDtype, QuantizeJob
+
+
+class ModelJobResult(TypedDict):
+    job: CompileJob | QuantizeJob
+    job_id: str
+    model: Model
+    model_id: str
+
+
+class InferenceJobResult(TypedDict):
+    job: InferenceJob
+    job_id: str
+    outputs: Any
+
+
+class ProfileJobResult(TypedDict):
+    job: ProfileJob
+    job_id: str
+
+
+def _dataset_entries(inputs: dict[str, Any]) -> dict[str, list[Any]]:
+    return {name: value if isinstance(value, list) else [value] for name, value in inputs.items()}
+
+
+def submit_compile_job(
+    model: Any,
+    device: Device,
+    input_specs: dict[str, tuple[tuple[int, ...], str]],
+    target_runtime: str,
+    options: str | None = None,
+    job_name: str | None = None,
+    model_name: str | None = None,
+) -> ModelJobResult:
+    compile_options = f"--target_runtime {target_runtime}"
+    if options:
+        compile_options = f"{compile_options} {options}"
+
+    model_arg = model
+    if isinstance(model, Path):
+        model_arg = str(model)
+    elif isinstance(model, str):
+        candidate = Path(model)
+        model_arg = model if candidate.exists() or candidate.suffix else hub.get_model(model)
+
+    if model_name and isinstance(model_arg, str) and Path(model_arg).exists():
+        model_arg = hub.upload_model(model_arg, name=model_name)
+
+    job = hub.submit_compile_job(
+        model=model_arg,
+        device=device,
+        name=job_name,
+        input_specs=input_specs,
+        options=compile_options,
+    )
+    target_model = job.get_target_model()
+    if target_model is None:
+        raise RuntimeError(f"Compile job {job.job_id} did not produce a target model.")
+    return {"job": job, "job_id": str(job.job_id), "model": target_model, "model_id": str(target_model.model_id)}
+
+
+def submit_inference_job(
+    model_id: str,
+    device: Device,
+    inputs: dict[str, Any],
+    output_dir: str | Path,
+    job_name: str | None = None,
+) -> InferenceJobResult:
+    job = hub.submit_inference_job(
+        model=hub.get_model(model_id),
+        device=device,
+        inputs=_dataset_entries(inputs),
+        name=job_name,
+    )
+    out = Path(output_dir)
+    out.mkdir(parents=True, exist_ok=True)
+    data = job.download_output_data(str(out))
+    return {"job": job, "job_id": str(job.job_id), "outputs": data}
+
+
+def submit_profile_job(
+    model_id: str,
+    device: Device,
+    options: str | None = None,
+    job_name: str | None = None,
+) -> ProfileJobResult:
+    job = hub.submit_profile_job(
+        model=hub.get_model(model_id),
+        device=device,
+        name=job_name,
+        options=options or "",
+    )
+    return {"job": job, "job_id": str(job.job_id)}
+
+
+def submit_quantize_job(
+    model: str | Path,
+    calibration_data: dict[str, Any],
+    options: str | None = None,
+    job_name: str | None = None,
+    model_name: str | None = None,
+) -> ModelJobResult:
+    model_arg = str(model)
+    if model_name and Path(model_arg).exists():
+        model_arg = hub.upload_model(model_arg, name=model_name)
+    job = hub.submit_quantize_job(
+        model=model_arg,
+        calibration_data=_dataset_entries(calibration_data),
+        weights_dtype=QuantizeDtype.INT8,
+        activations_dtype=QuantizeDtype.INT8,
+        name=job_name,
+        options=options or "",
+    )
+    target_model = job.get_target_model()
+    if target_model is None:
+        raise RuntimeError(f"Quantize job {job.job_id} did not produce a target model.")
+    return {"job": job, "job_id": str(job.job_id), "model": target_model, "model_id": str(target_model.model_id)}
+
+
+def download_model(model_id: str, output_path: str | Path) -> str:
+    dest = Path(output_path)
+    dest.parent.mkdir(parents=True, exist_ok=True)
+    model = hub.get_model(model_id)
+    result = model.download(str(dest))
+    return str(result or dest)
--- a/src/qualcomm/artifacts.py
+++ b/src/qualcomm/artifacts.py
@@ -0,0 +1,83 @@
+import tarfile
+from dataclasses import dataclass
+from pathlib import Path
+
+from src.aws import s3 as s3_ops
+from src.aws import sagemaker as sm_ops
+from src.config import Config
+
+
+@dataclass(frozen=True)
+class ResolvedOnnx:
+    onnx_path: Path
+    model_artifact: str | None
+    run_name: str
+
+
+def _safe_extract(tar: tarfile.TarFile, dest: Path) -> None:
+    dest_root = dest.resolve()
+    for member in tar.getmembers():
+        target = (dest / member.name).resolve()
+        if dest_root != target and dest_root not in target.parents:
+            raise ValueError(f"Unsafe tar member path: {member.name}")
+    tar.extractall(dest, filter="data")
+
+
+def _find_onnx(root: Path, explicit: str | None = None) -> Path:
+    if explicit:
+        p = Path(explicit)
+        if not p.is_absolute():
+            p = root / p
+        if not p.exists():
+            raise FileNotFoundError(f"ONNX file not found: {p}")
+        return p
+
+    matches = sorted(root.rglob("model.onnx"))
+    if not matches:
+        matches = sorted(root.rglob("*.onnx"))
+    if not matches:
+        raise FileNotFoundError(f"No ONNX file found under {root}")
+    if len(matches) > 1:
+        joined = ", ".join(str(p.relative_to(root)) for p in matches)
+        raise ValueError(f"Multiple ONNX files found ({joined}). Pass --onnx-path.")
+    return matches[0]
+
+
+def resolve_onnx(
+    cfg: Config,
+    output_dir: str,
+    from_job: str | None = None,
+    model_s3_uri: str | None = None,
+    onnx_path: str | None = None,
+    last_training_job: str | None = None,
+) -> ResolvedOnnx:
+    if onnx_path:
+        path = Path(onnx_path)
+        if path.exists():
+            return ResolvedOnnx(onnx_path=path, model_artifact=None, run_name=path.stem)
+
+    job = from_job or last_training_job
+    artifact = model_s3_uri
+    if not artifact:
+        if not job:
+            raise ValueError("No model source found. Pass --onnx-path, --model-s3-uri, --from-job, or run training first.")
+        artifact = sm_ops.get_model_artifacts(cfg.aws.region, cfg.aws.profile, job)
+
+    run_name = job or Path(artifact).name.removesuffix(".tar.gz").replace("/", "-")
+    root = Path(output_dir) / run_name / "source"
+    tar_path = root / "model.tar.gz"
+    s3_ops.download_file(cfg.aws.region, cfg.aws.profile, artifact, str(tar_path))
+
+    extract_dir = root / "extracted"
+    extract_dir.mkdir(parents=True, exist_ok=True)
+    try:
+        with tarfile.open(tar_path, "r:gz") as tar:
+            _safe_extract(tar, extract_dir)
+    except tarfile.TarError as e:
+        raise ValueError(f"Invalid model tarball: {tar_path}") from e
+
+    return ResolvedOnnx(
+        onnx_path=_find_onnx(extract_dir, onnx_path),
+        model_artifact=artifact,
+        run_name=run_name,
+    )
--- a/src/state.py
+++ b/src/state.py
@@ -33,6 +33,22 @@ class CliStateStore:
        value = self.get("last_training_job")
        return str(value) if value else None

+    def get_last_model_artifact(self) -> str | None:
+        value = self.get("last_model_artifact")
+        return str(value) if value else None
+
+    def get_last_quantized_model_id(self) -> str | None:
+        value = self.get("last_quantized_model_id")
+        return str(value) if value else None
+
+    def get_last_compiled_model_id(self) -> str | None:
+        value = self.get("last_compiled_model_id")
+        return str(value) if value else None
+
+    def get_last_downloaded_model(self) -> str | None:
+        value = self.get("last_downloaded_model")
+        return str(value) if value else None
+
    def set_last_training_job(self, job_name: str) -> None:
        self.update(last_training_job=job_name)

@@ -48,8 +64,8 @@ class CliStateStore:
        state["training_jobs"] = jobs
        self._write(state)

-    def set_latest_prerelease_model_version(self, version: str) -> None:
-        self.update(latest_prerelease_model_version=version)
+    def set_latest_experiment_model_version(self, version: str) -> None:
+        self.update(latest_experiment_model_version=version)

    def _write(self, state: dict[str, Any]) -> None:
        with open(self.path, "w") as f:
--- a/src/tracking/mlflow.py
+++ b/src/tracking/mlflow.py
@@ -1,21 +1,18 @@
-from __future__ import annotations
-
+import os
 from dataclasses import dataclass
 from typing import Any, Protocol

-from src.aws import mlflow as aws_mlflow
+import mlflow
+from mlflow.tracking import MlflowClient
+
+from src.cloud.mlflow import MlflowTrackingBackend, mlflow_tracking_backend_from_config
 from src.config import Config, MlflowMode


 class Tracker(Protocol):
    def start_training_run(self, training_job: Any, *, region: str, profile: str, role_arn: str) -> str | None: ...

-    def finalize_training_run(
-        self,
-        *,
-        run_id: str | None,
-        training_job_status: Any,
-    ) -> str | None: ...
+    def finalize_training_run(self, *, run_id: str | None, training_job_status: Any) -> str | None: ...


@dataclass(frozen=True)
@@ -29,118 +26,104 @@ class NoopTracker:

@dataclass(frozen=True)
 class MlflowTracker:
-    mlflow: Any
    tracking_uri: str
    experiment_name: str
    registered_model_name: str
    register_trained_models: bool
+    tracking_backend: MlflowTrackingBackend

    @classmethod
    def from_config(cls, cfg: Config) -> Tracker:
        if cfg.mlflow.mode is MlflowMode.disabled:
            return NoopTracker()

-        try:
-            import mlflow
-        except ImportError as e:
-            raise RuntimeError(
-                "MLflow is enabled in config but optional dependencies are not installed. "
-                "Install with: qc-cli[mlflow]"
-            ) from e
+        os.environ.setdefault("MLFLOW_SUPPRESS_PRINTING_URL_TO_STDOUT", "true")

-        if not cfg.mlflow.tracking_server_name:
-            raise RuntimeError("mlflow.tracking_server_name is required when MLflow is enabled.")
+        tracking_server_name = cfg.effective_mlflow_tracking_server_name
+        if not tracking_server_name:
+            raise RuntimeError("MLflow tracking server name could not be resolved.")

-        tracking_uri = aws_mlflow.get_tracking_server_arn(
-            cfg.aws.region,
-            cfg.aws.profile,
-            cfg.mlflow.tracking_server_name,
-        )
-        mlflow.set_tracking_uri(tracking_uri)
-        mlflow.set_experiment(cfg.mlflow.experiment_name)
+        tracking_backend = mlflow_tracking_backend_from_config(cfg)
+
+        tracking_uri = tracking_backend.get_tracking_uri(tracking_server_name)
+        with tracking_backend.auth_env():
+            mlflow.set_tracking_uri(tracking_uri)
+            mlflow.set_experiment(cfg.mlflow.experiment_name)

        return cls(
-            mlflow=mlflow,
            tracking_uri=tracking_uri,
            experiment_name=cfg.mlflow.experiment_name,
            registered_model_name=cfg.mlflow.registered_model_name,
            register_trained_models=cfg.mlflow.register_trained_models,
+            tracking_backend=tracking_backend,
        )

    def start_training_run(self, training_job: Any, *, region: str, profile: str, role_arn: str) -> str | None:
-        run = self.mlflow.start_run(run_name=training_job.job_name)
-        run_id = str(run.info.run_id)
+        with self.tracking_backend.auth_env():
+            run = mlflow.start_run(run_name=training_job.job_name)
+            run_id = str(run.info.run_id)

-        params = {
-            "aws.region": region,
-            "aws.profile": profile,
-            "sagemaker.role_arn": role_arn,
-            "sagemaker.job_name": training_job.job_name,
-            "sagemaker.training_image": training_job.image_uri,
-            "sagemaker.instance_type": training_job.instance_type,
-            "sagemaker.instance_count": training_job.instance_count,
-            "sagemaker.s3_train_uri": training_job.s3_train_uri,
-            "sagemaker.s3_output_path": training_job.s3_output_path,
-            "sagemaker.entry_point": training_job.entry_point,
-            "sagemaker.source_dir": training_job.source_dir,
-        }
-        self._log_params(params)
-        self._log_params({f"hyperparameters.{key}": value for key, value in training_job.hyperparameters.items()})
-        self.mlflow.set_tags(
-            {
-                "qc_cli.stage": "prerelease",
-                "qc_cli.command": "train start",
-                "sagemaker.job_name": training_job.job_name,
-            }
-        )
-        self.mlflow.end_run()
-        return run_id
+            self._log_params(
+                self.tracking_backend.training_run_params(
+                    training_job,
+                    region=region,
+                    profile=profile,
+                    role_arn=role_arn,
+                )
+            )
+            self._log_params({f"hyperparameters.{key}": value for key, value in training_job.hyperparameters.items()})
+            mlflow.set_tags(
+                {
+                    "qc_cli.stage": "experiment",
+                    "qc_cli.artifact_kind": "trained_source",
+                    "qc_cli.source": self.tracking_backend.provider_name,
+                    "qc_cli.command": "train start",
+                    **self.tracking_backend.training_run_tags(training_job),
+                }
+            )
+            mlflow.end_run()
+            return run_id

    def finalize_training_run(self, *, run_id: str | None, training_job_status: Any) -> str | None:
        if not run_id:
            return None

-        with self.mlflow.start_run(run_id=run_id):
-            self._log_params(
-                {
-                    "sagemaker.training_status": training_job_status.status,
-                    "sagemaker.created_at": training_job_status.created,
-                    "sagemaker.modified_at": training_job_status.modified,
-                    "sagemaker.model_artifacts": training_job_status.model_artifacts,
-                    "sagemaker.failure_reason": training_job_status.failure_reason,
-                }
-            )
-            self._log_final_metrics(training_job_status.raw)
-            self.mlflow.set_tag("qc_cli.command", "train status")
+        with self.tracking_backend.auth_env():
+            with mlflow.start_run(run_id=run_id):
+                self._log_params(self.tracking_backend.training_status_params(training_job_status))
+                self._log_final_metrics(training_job_status.raw)
+                mlflow.set_tag("qc_cli.command", "train status")

-            if training_job_status.status != "Completed" or not training_job_status.model_artifacts:
-                self.mlflow.set_tag("qc_cli.training_terminal_status", training_job_status.status)
-                return None
+                if training_job_status.status != "Completed" or not training_job_status.model_artifacts:
+                    mlflow.set_tag("qc_cli.training_terminal_status", training_job_status.status)
+                    return None

-            if not self.register_trained_models:
-                return None
+                if not self.register_trained_models:
+                    return None

-            client = self.mlflow.tracking.MlflowClient()
-            self._ensure_registered_model(client, self.registered_model_name)
-            version = client.create_model_version(
-                name=self.registered_model_name,
-                source=training_job_status.model_artifacts,
-                run_id=run_id,
-                tags={
-                    "qc_cli.stage": "prerelease",
-                    "sagemaker.job_name": training_job_status.name,
-                },
-            )
-            version_number = str(version.version)
-            self._set_alias(client, self.registered_model_name, "prerelease-latest", version_number)
-            self.mlflow.set_tag("qc_cli.registered_model_name", self.registered_model_name)
-            self.mlflow.set_tag("qc_cli.registered_model_version", version_number)
-            return version_number
+                client = MlflowClient()
+                self._ensure_registered_model(client, self.registered_model_name)
+                version = client.create_model_version(
+                    name=self.registered_model_name,
+                    source=training_job_status.model_artifacts,
+                    run_id=run_id,
+                    tags={
+                        "qc_cli.stage": "experiment",
+                        "qc_cli.artifact_kind": "trained_source",
+                        "qc_cli.source": self.tracking_backend.provider_name,
+                        **self.tracking_backend.model_version_tags(training_job_status),
+                    },
+                )
+                version_number = str(version.version)
+                client.set_registered_model_alias(self.registered_model_name, "experiment-latest", version_number)
+                mlflow.set_tag("qc_cli.registered_model_name", self.registered_model_name)
+                mlflow.set_tag("qc_cli.registered_model_version", version_number)
+                return version_number

    def _log_params(self, params: dict[str, Any]) -> None:
        cleaned = {key: str(value) for key, value in params.items() if value is not None}
        if cleaned:
-            self.mlflow.log_params(cleaned)
+            mlflow.log_params(cleaned)

    def _log_final_metrics(self, training_job: dict[str, Any]) -> None:
        metrics = {}
@@ -150,14 +133,10 @@ class MlflowTracker:
            if name and value is not None:
                metrics[str(name)] = float(value)
        if metrics:
-            self.mlflow.log_metrics(metrics)
+            mlflow.log_metrics(metrics)

-    def _ensure_registered_model(self, client: Any, name: str) -> None:
+    def _ensure_registered_model(self, client: MlflowClient, name: str) -> None:
        try:
            client.get_registered_model(name)
        except Exception:
            client.create_registered_model(name)
-
-    def _set_alias(self, client: Any, name: str, alias: str, version: str) -> None:
-        if hasattr(client, "set_registered_model_alias"):
-            client.set_registered_model_alias(name, alias, version)
--- a/uv.lock
+++ b/uv.lock
@@ -210,6 +210,15 @@ wheels = [
    { url = "https://files.pythonhosted.org/packages/06/7c/1e7964f0f267301bb5026fed45369961f7311073412bcd36e09fbe4df0de/aws_cdk_lib-2.253.1-py3-none-any.whl", hash = "sha256:03a6f5080978f9e3576f490d06fbd1f41f159280d34dbca50721de4a19694136", size = 50271288, upload-time = "2026-05-08T16:04:41.956Z" },
 ]

+[[package]]
+name = "backoff"
+version = "2.2.1"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/47/d7/5bbeb12c44d7c4f2fb5b56abce497eb5ed9f34d85701de869acedd602619/backoff-2.2.1.tar.gz", hash = "sha256:03f829f5bb1923180821643f8753b0502c3b682293992485b0eef2807afa5cba", size = 17001, upload-time = "2022-10-05T19:19:32.061Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/df/73/b6e24bd22e6720ca8ee9a85a0c4a2971af8497d8f3193fa05390cbd46e09/backoff-2.2.1-py3-none-any.whl", hash = "sha256:63579f9a0628e06278f7e47b7d7d5b6ce20dc65c5e96a6f3ca99a6adca0396e8", size = 15148, upload-time = "2022-10-05T19:19:30.546Z" },
+]
+
 [[package]]
 name = "blinker"
 version = "1.9.0"
@@ -591,6 +600,18 @@ wheels = [
    { url = "https://files.pythonhosted.org/packages/e3/43/33806117fc8e0992aae890be73990b31d802b66e8a423bf87b80990fce66/databricks_sdk-0.111.0-py3-none-any.whl", hash = "sha256:d14ba186afd2bea03c7157d2f03e0f861a0b8eff528cfdba926d07b9e20384b8", size = 901536, upload-time = "2026-05-25T09:29:58.057Z" },
 ]

+[[package]]
+name = "deprecation"
+version = "2.1.0"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "packaging" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/5a/d3/8ae2869247df154b64c1884d7346d412fed0c49df84db635aab2d1c40e62/deprecation-2.1.0.tar.gz", hash = "sha256:72b3bde64e5d778694b0cf68178aed03d15e15477116add3fb773e581f9518ff", size = 173788, upload-time = "2020-04-20T14:23:38.738Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/02/c3/253a89ee03fc9b9682f1541728eb66db7db22148cd94f89ab22528cd1e1b/deprecation-2.1.0-py2.py3-none-any.whl", hash = "sha256:a10811591210e1fb0e768a8c25517cabeabcba6f0bf96564f8ff45189f90b14a", size = 11178, upload-time = "2020-04-20T14:23:36.581Z" },
+]
+
 [[package]]
 name = "docker"
 version = "7.1.0"
@@ -908,6 +929,41 @@ wheels = [
    { url = "https://files.pythonhosted.org/packages/04/4b/29cac41a4d98d144bf5f6d33995617b185d14b22401f75ca86f384e87ff1/h11-0.16.0-py3-none-any.whl", hash = "sha256:63cf8bbe7522de3bf65932fda1d9c2772064ffb3dae62d55932da54b31cb6c86", size = 37515, upload-time = "2025-04-24T03:35:24.344Z" },
 ]

+[[package]]
+name = "h5py"
+version = "3.16.0"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "numpy" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/db/33/acd0ce6863b6c0d7735007df01815403f5589a21ff8c2e1ee2587a38f548/h5py-3.16.0.tar.gz", hash = "sha256:a0dbaad796840ccaa67a4c144a0d0c8080073c34c76d5a6941d6818678ef2738", size = 446526, upload-time = "2026-03-06T13:49:08.07Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/0f/9e/6142ebfda0cb6e9349c091eae73c2e01a770b7659255248d637bec54a88b/h5py-3.16.0-cp313-cp313-macosx_10_13_x86_64.whl", hash = "sha256:370a845f432c2c9619db8eed334d1e610c6015796122b0e57aa46312c22617d9", size = 3671808, upload-time = "2026-03-06T13:48:19.737Z" },
+    { url = "https://files.pythonhosted.org/packages/b0/65/5e088a45d0f43cd814bc5bec521c051d42005a472e804b1a36c48dada09b/h5py-3.16.0-cp313-cp313-macosx_11_0_arm64.whl", hash = "sha256:42108e93326c50c2810025aade9eac9d6827524cdccc7d4b75a546e5ab308edb", size = 3045837, upload-time = "2026-03-06T13:48:21.854Z" },
+    { url = "https://files.pythonhosted.org/packages/da/1e/6172269e18cc5a484e2913ced33339aad588e02ba407fafd00d369e22ef3/h5py-3.16.0-cp313-cp313-manylinux_2_28_aarch64.whl", hash = "sha256:099f2525c9dcf28de366970a5fb34879aab20491589fa89ce2863a84218bb524", size = 5193860, upload-time = "2026-03-06T13:48:24.071Z" },
+    { url = "https://files.pythonhosted.org/packages/bd/98/ef2b6fe2903e377cbe870c3b2800d62552f1e3dbe81ce49e1923c53d1c5c/h5py-3.16.0-cp313-cp313-manylinux_2_28_x86_64.whl", hash = "sha256:9300ad32dea9dfc5171f94d5f6948e159ed93e4701280b0f508773b3f582f402", size = 5400417, upload-time = "2026-03-06T13:48:25.728Z" },
+    { url = "https://files.pythonhosted.org/packages/bc/81/5b62d760039eed64348c98129d17061fdfc7839fc9c04eaaad6dee1004e4/h5py-3.16.0-cp313-cp313-musllinux_1_2_aarch64.whl", hash = "sha256:171038f23bccddfc23f344cadabdfc9917ff554db6a0d417180d2747fe4c75a7", size = 5185214, upload-time = "2026-03-06T13:48:27.436Z" },
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Author	SHA1	Message	Date
slalom	3846c5d88d	add aws context for MLFlow	2026-06-05 15:52:55 -04:00
slalom	d244150d98	move mlflow to its own command	2026-06-05 11:47:38 -04:00
slalom	d7c7158464	clean main file	2026-06-05 11:25:04 -04:00
slalom	6bc25dc183	restructure config to use Device class directly Also include device validation	2026-06-04 17:28:17 -04:00
samirodr	71a95aa3a7	update description	2026-06-03 17:13:00 -04:00
slalom	a3f3060e13	ai-hub (#3 ) Reviewed-on: #3	2026-06-03 21:06:06 +00:00
slalom	e9ada2612f	Mlflow implementation (#2 ) Reviewed-on: #2	2026-06-02 19:04:23 +00:00