OO-LD · raederan · Jun 22, 2026 · Jun 22, 2026 · Jun 22, 2026
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
@@ -56,7 +56,7 @@ With `make`:
 
 ```bash
 make docs        # serve with live reload at http://localhost:8000
-make docs-test   # strict build — fails on any warning
+make docs-test   # strict build, fails on any warning
 ```
 
 Without `make`:
@@ -78,4 +78,8 @@ Releases are published automatically by CI when a version tag is pushed.
    git push origin v0.17.0
    ```
 
-CI will build the package (`uv build`), publish it to PyPI, and deploy the docs to GitHub Pages. The version is derived from the git tag via `hatch-vcs` — no manual version bumping needed.
+CI will build the package (`uv build`), publish it to PyPI, and deploy the docs to GitHub Pages. The version is derived from the git tag via `hatch-vcs`, so no manual version bumping is needed.
+
+## AI Guidelines
+
+We believe that AI, and in particular LLMs, can be helpful conventional tools to accelerate development and improve quality when used responsibly. AI or any other tool is never the author of code; a human developer always is. Therefore, it is mandatory to carefully review all generated content for correctness, quality, and the absence of legal and ethical issues. For consistency, please avoid patterns that are hard to maintain manually, such as duplicated content or special characters like em dashes or UTF icons.
diff --git a/README.md b/README.md
@@ -1,16 +1,17 @@
+# oold-python
+
+<!-- markdownlint-disable MD033 -->
 <p align="center">
   <img alt="OO-LD logo" src="https://raw.githubusercontent.com/OO-LD/schema/main/OO-LD_logo.jpg" width="220" />
 </p>
+<!-- markdownlint-enable MD033 -->
 
 [![DOI](https://zenodo.org/badge/691355012.svg)](https://zenodo.org/doi/10.5281/zenodo.8374237)
 [![PyPI-Server](https://img.shields.io/pypi/v/oold.svg)](https://pypi.org/project/oold/)
 [![Build status](https://img.shields.io/github/actions/workflow/status/OO-LD/oold-python/main.yml?branch=main)](https://github.com/OO-LD/oold-python/actions/workflows/main.yml?query=branch%3Amain)
 [![codecov](https://codecov.io/gh/OO-LD/oold-python/branch/main/graph/badge.svg)](https://codecov.io/gh/OO-LD/oold-python)
 [![License](https://img.shields.io/github/license/OO-LD/oold-python)](https://github.com/OO-LD/oold-python/blob/main/LICENSE)
 
-
-# oold-python
-
 Linked data class python package for object oriented linked data ([OO-LD](https://github.com/OO-LD/schema)) based on [pydantic](https://github.com/pydantic/pydantic). This package aims to implement this functionality independent from the [osw-python](https://github.com/OpenSemanticLab/osw-python) package - work in progress.
 
 ## Installation
@@ -28,6 +29,7 @@ pip install oold
 ```
 
 ## Objectives
+
 - lossless transpilation between [OO-LD](https://github.com/OO-LD/schema) schemas and extended pydantic data classes
 - interpret string IRIs with `oold-range` annotation as typed class property
 - dynamically resolve such IRIs from one or multiple backends (simple in-memory dict, RDF-Graph, SPARQL-Endpoint, Document Store, etc.)
@@ -36,20 +38,20 @@ pip install oold
 
 ## Related Work
 
-| Library | Notes |
-|---|---|
-| [RDFLib](https://github.com/RDFLib/rdflib) | RDF management; no schema validation or type safety. Used as a backend by oold-python. |
-| [SuRF](https://github.com/cosminbasca/surfrdf) | ORM-like RDF; dynamically generated classes, no static type checking. |
-| [Owlready2](https://github.com/pwin/owlready2) | OWL-aligned classes with native reasoning; no remote SPARQL support. |
-| [twa](https://github.com/TheWorldAvatar/baselib/tree/main/python_wrapper) | Pydantic-based OGM; tightly couples RDF properties and type annotations. |
-| [COLD](https://github.com/DigiBatt/cold/) | Generates static classes from OWL; no object-to-graph mapping. |
+| Library                                                                   | Notes                                                                                  |
+| ------------------------------------------------------------------------- | -------------------------------------------------------------------------------------- |
+| [RDFLib](https://github.com/RDFLib/rdflib)                                | RDF management; no schema validation or type safety. Used as a backend by oold-python. |
+| [SuRF](https://github.com/cosminbasca/surfrdf)                            | ORM-like RDF; dynamically generated classes, no static type checking.                  |
+| [Owlready2](https://github.com/pwin/owlready2)                            | OWL-aligned classes with native reasoning; no remote SPARQL support.                   |
+| [twa](https://github.com/TheWorldAvatar/baselib/tree/main/python_wrapper) | Pydantic-based OGM; tightly couples RDF properties and type annotations.               |
+| [COLD](https://github.com/DigiBatt/cold/)                                 | Generates static classes from OWL; no object-to-graph mapping.                         |
 
 See also: Bai et al. [https://doi.org/10.1039/D5DD00069F](https://doi.org/10.1039/D5DD00069F)
 
-
 ## Features
 
 ### Code Generation
+
 Generate Python data models from OO-LD Schemas (based on [datamodel-code-generator](https://github.com/koxudaxi/datamodel-code-generator)):
 
 ```python
@@ -121,6 +123,7 @@ Thanks to the resolver mechanism, these IRIs turn into fully-fledged objects as
 More details see [example code](./tests/test_oold.py)
 
 ### RDF-Export
+
 Easily convert your objects to RDF (JSON-LD) and integrate with SPARQL queries:
 
 ```python
@@ -188,6 +191,7 @@ ctrl.to_json()  # {"name": "arm-1", "joint_count": 6, "connection_url": "tcp://.
 ```
 
 Key features:
+
 - **Auto-detects the pure data model** from MRO - no manual configuration needed
 - **Serialization strips controller fields** - `to_json()` / `to_jsonld()` only include data model fields
 - **Type registry exclusion** - controllers don't replace their data model in the `_types` lookup, so backend resolution always returns the pure model class
@@ -205,6 +209,7 @@ target = TargetClass(source, extra_field="value")
 ```
 
 Parameters:
+
 - `none_to_default` - drop None/empty list attributes so the target uses its defaults
 - `remove_extra` - drop fields not defined on the target class
 - `silent` - suppress warnings about dropped fields (default: True)
@@ -213,11 +218,11 @@ Parameters:
 
 Built-in backends for entity persistence and resolution:
 
-| Backend | Storage | Query support |
-|---------|---------|---------------|
+| Backend                     | Storage                                          | Query support   |
+| --------------------------- | ------------------------------------------------ | --------------- |
 | **SimpleDictDocumentStore** | In-memory dict, optional JSON file (`file_path`) | Filter by field |
-| **SqliteDocumentStore** | SQLite database (default `format=JSON`) | - |
-| **LocalSparqlBackend** | In-memory RDF graph (rdflib) | SPARQL |
+| **SqliteDocumentStore**     | SQLite database (default `format=JSON`)          | -               |
+| **LocalSparqlBackend**      | In-memory RDF graph (rdflib)                     | SPARQL          |
 
 ```python
 from oold.backend.document_store import SimpleDictDocumentStore

diff --git a/docs/contributing.md b/docs/contributing.md
@@ -98,3 +98,9 @@ git push origin v0.17.0
 ```
 
 CI will build the package (`uv build`), publish it to PyPI, and deploy the docs to GitHub Pages. The version is derived from the git tag via `hatch-vcs` - no manual version bumping needed.
+
+---
+
+## AI Guidelines
+
+We believe that AI, and in particular LLMs, can be helpful conventional tools to accelerate development and improve quality when used responsibly. AI or any other tool is never the author of code; a human developer always is. Therefore, it is mandatory to carefully review all generated content for correctness, quality, and the absence of legal and ethical issues. For consistency, please avoid patterns that are hard to maintain manually, such as duplicated content or special characters like em dashes or UTF icons.
diff --git a/pyproject.toml b/pyproject.toml
@@ -142,6 +142,7 @@ subclass-of-final-class = "ignore"
 
 [tool.pytest.ini_options]
 testpaths = ["tests"]
+addopts = "--cov --cov-config=pyproject.toml --cov-report=term-missing"
 
 [tool.deptry]
 # The anywidget notebook only runs in the browser (pyodide) and imports