Update agent skills

Signed-off-by: Tomas Pereira de Vasconcelos <tomasvasconcelos1@gmail.com>

Author: tpvasconcelos

.cursor/rules/dropping-and-or-adding-support-for-python-versions/RULES.md

@@ -210,11 +210,10 @@ def _coerce_to_densities(...):
 - Run targeted tests via: `tox -e pytest -- tests/unit/test_foo.py -k "test_bar" --no-cov`
 - The `tests/e2e/artifacts/` directory contains expected Plotly Figure JSON for e2e tests
 
-## .cursor Rules
+## Agent Skills
 
-Check `.cursor/rules` before changing platform or version support. The only
-current rule is for adding or dropping Python versions at
-`.cursor/rules/dropping-and-or-adding-support-for-python-versions/RULES.md`.
+Agent skills live under `skills/`. For Python version support changes, follow
+`skills/dropping-and-or-adding-support-for-python-versions/SKILL.md`.
 
 ## CI/CD Pipeline
 

AGENTS.md

@@ -39,6 +39,7 @@ recursive-include .github *.yml *.yaml
 recursive-include cicd_utils README.md *.py *.sh
 recursive-include misc *.py *.ipynb *.txt *.png
 recursive-include requirements *.txt
+recursive-include skills *.md
 recursive-include tests *.py
 recursive-include tests/e2e/artifacts *.json
 

MANIFEST.in

@@ -0,0 +1,31 @@
+---
+name: dropping-and-or-adding-support-for-python-versions
+description: Update supported Python versions across CI, configs, and docs in line with the official Python support policy. Use when adding or dropping Python version support.
+---
+This project follows the official Python support policy: https://devguide.python.org/versions/
+
+When adding support for a new Python version
+1. Update `.github/workflows/ci.yml` at `jobs.software-tests.strategy.matrix.python-version`.
+2. Update `pyproject.toml` at `project.classifiers`.
+3. Update `docs/reference/changelog.md` at the top of "Unreleased changes" with:
+   "Add support for Python 3.XX, in accordance with the official Python support policy[^1] ({gh-pr}`XXX`)".
+
+When dropping support for an end-of-life Python version
+1. Remove it from the CI pipeline and update the entries listed below.
+2. Update `docs/reference/changelog.md` under an "Unreleased changes" -> "Breaking changes" section with:
+   "Dropped support for Python 3.XX, in accordance with the official Python support policy[^1] ({gh-pr}`XXX`)".
+
+Files to update when dropping support for a Python version
+- `.github/workflows/ci.yml`: `jobs.software-tests.strategy.matrix.python-version`,
+  `jobs.static-checks.steps.with.python-version`.
+- `.github/workflows/release.yml`: `jobs.build.steps.with.python-version`,
+  `jobs.github-release.steps.with.python-version`.
+- `.pre-commit-config.yaml`: `default_language_version.python`.
+- `.readthedocs.yml`: `build.tools.python`.
+- `AGENTS.md`: wherever relevant.
+- `docs/development/contributing.md`: wherever relevant.
+- `Makefile`: `BASE_PYTHON`.
+- `mypy.ini`: `python_version`.
+- `pyproject.toml`: `project.classifiers`, `project.requires-python`.
+- `pyrightconfig.json`: `pythonVersion`.
+- `ruff.toml`: `target-version`.