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11 changes: 11 additions & 0 deletions .github/workflows/mkdocs-build.yml
Original file line number Diff line number Diff line change
@@ -0,0 +1,11 @@
name: MkDocs Build (RationAI Standard)
on:
push:
branches:
- main
pull_request:
types: [opened, synchronize, reopened]

jobs:
run:
uses: RationAI/.github/.github/workflows/mkdocs-build.yml@main
24 changes: 14 additions & 10 deletions README.md
Original file line number Diff line number Diff line change
Expand Up @@ -58,6 +58,7 @@ asyncio.run(main())
Classify an image using the specified model.

**Parameters:**

- `model`: The name of the model to use for classification
- `image`: The image to classify (must be uint8 RGB image)
- `timeout`: Optional timeout for the request (defaults to 100 seconds)
Expand All @@ -69,6 +70,7 @@ Classify an image using the specified model.
Segment an image using the specified model.

**Parameters:**

- `model`: The name of the model to use for segmentation
- `image`: The image to segment (must be uint8 RGB image)
- `timeout`: Optional timeout for the request (defaults to 100 seconds)
Expand Down Expand Up @@ -101,6 +103,7 @@ Generate a heatmap for a whole slide image using the specified model.
Check quality of a whole slide image.

**Parameters:**

- `wsi_path`: Path to the whole slide image
- `output_path`: Directory to save output masks
- `config`: Optional `SlideCheckConfig` for the quality check
Expand All @@ -113,6 +116,7 @@ Check quality of a whole slide image.
Check quality of multiple slides concurrently.

**Parameters:**

- `wsi_paths`: List of paths to whole slide images
- `output_path`: Directory to save output masks
- `config`: Optional `SlideCheckConfig` for the quality check
Expand All @@ -126,6 +130,7 @@ Check quality of multiple slides concurrently.
Generate a QC report from processed slides.

**Parameters:**

- `backgrounds`: List of paths to background (slide) images
- `mask_dir`: Directory containing generated masks
- `save_location`: Path where the report HTML will be saved
Expand All @@ -148,16 +153,16 @@ import rationai

async def process_images_with_semaphore(image_paths, model_name, max_concurrent):
semaphore = asyncio.Semaphore(max_concurrent)

async def bounded_segment(client, path):
async with semaphore:
image = load_image(path)
image = Image.open(path).convert("RGB")

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medium

The Image object from the Pillow library is used here, but from PIL import Image is missing from this code snippet. This will cause the example to fail. Please add the import at the beginning of the snippet.

return await client.models.segment_image(model_name, image)

async with rationai.AsyncClient() as client:
tasks = [bounded_segment(client, path) for path in image_paths]
results = await asyncio.gather(*tasks)

return results

# Process up to 16 images concurrently
Expand All @@ -174,16 +179,16 @@ from rationai import AsyncClient

async def process_with_as_completed(image_paths, model_name, max_concurrent):
semaphore = asyncio.Semaphore(max_concurrent)

async def bounded_request(client, path):
async with semaphore:
image = load_image(path)
image = Image.open(path).convert("RGB")

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medium

Similar to the previous example, Image is used here without being imported. Please add from PIL import Image to make this code snippet runnable.

return path, await client.models.segment_image(model_name, image)

async with AsyncClient(models_base_url="http://localhost:8000") as client:
tasks = {asyncio.create_task(bounded_request(client, path)): path
tasks = {asyncio.create_task(bounded_request(client, path)): path
for path in image_paths}

for future in asyncio.as_completed(tasks):
path, result = await future
print(f"Processed {path}")
Expand All @@ -192,7 +197,6 @@ async def process_with_as_completed(image_paths, model_name, max_concurrent):
asyncio.run(process_with_as_completed(image_paths, "model-name", max_concurrent=16))
```


Start with a conservative limit and monitor server resources to find the optimal value for your setup.

## Configuration
Expand Down
44 changes: 44 additions & 0 deletions docs/index.md
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# RationAI Python SDK

Python SDK for interacting with RationAI pathology image analysis services (classification, segmentation, and QC).

[Quick start](learn/get-started/quick-start.md)

[How it works](learn/how-it-works.md)

[API reference](reference/client.md)

## What you can do

- Run image classification and segmentation via `client.models`.
- Run quality-control workflows via `client.qc`.
- Choose sync (`Client`) or async (`AsyncClient`) depending on your app.

## Minimal examples

### Model example

```python
from PIL import Image

import rationai

image = Image.open("path/to/image.jpg").convert("RGB")

with rationai.Client() as client:
result = client.models.classify_image("model-name", image)
print(result)
Comment on lines +29 to +30
Copy link

Copilot AI Feb 2, 2026

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Code blocks should use spaces for indentation, not tabs. The rest of the codebase and documentation (including quick-start.md and README.md) consistently uses spaces. Please replace tabs with 4 spaces to maintain consistency.

Copilot uses AI. Check for mistakes.
```

### QC example

```python
import rationai

with rationai.Client() as client:
xopat_url = client.qc.check_slide(
wsi_path="/data/slides/slide.svs",
output_path="/data/qc-output/slide-001",
)
Comment on lines +39 to +42
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Copilot AI Feb 2, 2026

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Code blocks should use spaces for indentation, not tabs. The rest of the codebase and documentation (including quick-start.md and README.md) consistently uses spaces. Please replace tabs with 4 spaces to maintain consistency.

Copilot uses AI. Check for mistakes.
print(xopat_url)
```
170 changes: 170 additions & 0 deletions docs/learn/get-started/quick-start.md
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# Quick start

## Sync vs Async clients

This SDK provides two clients:

- `rationai.Client` (sync): Uses blocking HTTP requests. Best for scripts, notebooks, CLIs, or when your code is already synchronous.
- `rationai.AsyncClient` (async): Uses non-blocking HTTP requests (`await`). Best when you already have an `asyncio` event loop (FastAPI, async workers) or you want to run many requests concurrently.

Both clients expose the same high-level resources:

- `client.models` for image classification/segmentation
- `client.qc` for quality control endpoints

### What’s the actual difference?

- **Sync** calls (e.g. `client.models.classify_image(...)`) block the current thread until the request completes.
- **Async** calls (e.g. `await client.models.classify_image(...)`) yield control back to the event loop while the network request is in flight, so other tasks can run.

### Lifecycle (important)

- Prefer using context managers so connections are closed:
- sync: `with rationai.Client(...) as client: ...`
- async: `async with rationai.AsyncClient(...) as client: ...`
- If you don’t use `with`, call `client.close()` (sync) / `await client.aclose()` (async).

For details on what is sent over the wire (compression, payloads), see: [How it works](../how-it-works.md).

## API at a glance

### Models

#### `client.models.classify_image`

Signature:

`classify_image(model: str, image: PIL.Image.Image | numpy.typing.NDArray[numpy.uint8], timeout=...) -> float | dict[str, float]`

- `model`: Model name / path appended to `models_base_url`.
- `image`: **uint8 RGB** image (PIL or NumPy array of shape `(H, W, 3)`).
- `timeout`: Optional request timeout (defaults to the client’s timeout).
- Returns: classification result from JSON (often `float` for binary, or `dict[class, prob]`).

#### `client.models.segment_image`

Signature:

`segment_image(model: str, image: PIL.Image.Image | numpy.typing.NDArray[numpy.uint8], timeout=...) -> numpy.typing.NDArray[numpy.float16]`

- `model`: Model name / path appended to `models_base_url`.
- `image`: **uint8 RGB** image (PIL or NumPy array of shape `(H, W, 3)`).
- `timeout`: Optional request timeout (defaults to the client’s timeout).
- Returns: `float16` NumPy array with shape `(num_classes, height, width)`.

### Quality control (QC)

#### `client.qc.check_slide`

Signature:

`check_slide(wsi_path: os.PathLike[str] | str, output_path: os.PathLike[str] | str, config: SlideCheckConfig | None = None, timeout=3600) -> str`

- `wsi_path`: Path to a whole-slide image (evaluated by the QC service).
- `output_path`: Directory where the QC service should write masks (evaluated by the QC service).
- `config`: Optional `SlideCheckConfig` (see reference types).
- `timeout`: Request timeout (default is 3600 seconds).
- Returns: xOpat URL as plain text.

#### `client.qc.generate_report`

Signature:

`generate_report(backgrounds: Iterable[os.PathLike[str] | str], mask_dir: os.PathLike[str] | str, save_location: os.PathLike[str] | str, compute_metrics: bool = True, timeout=...) -> None`

- `backgrounds`: Iterable of slide/background image paths.
- `mask_dir`: Directory containing generated masks.
- `save_location`: Path where the report HTML should be written.
- `compute_metrics`: Whether to compute aggregated metrics (default: `True`).
- Returns: nothing.

## Synchronous client

```python
from PIL import Image
import rationai

image = Image.open("path/to/image.jpg").convert("RGB")

with rationai.Client() as client:
result = client.models.classify_image("model-name", image)
print(result)
```

## Asynchronous client

```python
import asyncio
from PIL import Image
import rationai

image = Image.open("path/to/image.jpg").convert("RGB")

async with rationai.AsyncClient() as client:
result = await client.models.classify_image("model-name", image)
print(result)
```

### Concurrency with the async client

Use `asyncio` concurrency when you need to process many images. A semaphore is the simplest way to cap concurrency so you don’t overload the server.

```python
import asyncio
from PIL import Image
import rationai

async def classify_many(paths: list[str], model: str, *, max_concurrent: int = 8) -> list[object]:
sem = asyncio.Semaphore(max_concurrent)

async def one(client: rationai.AsyncClient, path: str) -> object:
async with sem:
image = Image.open(path).convert("RGB")
return await client.models.classify_image(model, image)

async with rationai.AsyncClient() as client:
return await asyncio.gather(*(one(client, p) for p in paths))
```

## Common pitfalls

- **PIL image mode**: ensure RGB.

```python
image = Image.open(path).convert("RGB")
```

- **NumPy dtype/shape**: the services expect `uint8` RGB images.

```python
import numpy as np

assert arr.dtype == np.uint8
assert arr.ndim == 3 and arr.shape[2] == 3
```

- **Forgetting to close clients**: prefer `with ...` / `async with ...`.

- **Too much async concurrency**: cap with a semaphore (start small like 4–16) to avoid server overload/timeouts.

- **Timeouts**: segmentation/QC can take longer. Increase per-request timeout if needed.

```python
result = client.models.segment_image("model", image, timeout=300)
```

- **QC paths are server-side**: `wsi_path` / `output_path` must exist where the QC service runs.

## Configuration

You can override service URLs and timeouts:

```python
from rationai import Client

client = Client(
models_base_url="http://localhost:8000",
qc_base_url="http://localhost:8001",
timeout=300,
)
```
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