[tsvikas]

Summary

Follow-up to #79, which backed out of num_workers = "auto" in [tool.mypy] and passed --num-workers auto only in CI, because validate-pyproject rejects the value: SchemaStore's mypy schema still types num_workers as an integer.

This puts the setting back in the config, so local mypy runs are parallel too, and relaxes the pre-commit hook instead.

Changes

• pyproject.toml.jinja: add num_workers = "auto" to [tool.mypy].
• .pre-commit-config.yaml.jinja: pass --disable-plugins mypy -- to the validate-pyproject hook. Only the mypy schema is skipped; the other tool schemas (ruff, uv, pytest, ...) are still validated. A TODO marks it for removal once SchemaStore accepts "auto".
• ci.yml.jinja: drop --num-workers auto from the mypy step, since the config now covers it.

Testing

just test passes: all seven generated projects render, and the Validate pyproject.toml hook passes in each with num_workers = "auto" present.

🤖 Generated with Claude Code

[sourcery-ai]

Hey - I've found 1 issue

Prompt for AI Agents

Please address the comments from this code review:

## Individual Comments

### Comment 1
<location path="project_name/pyproject.toml.jinja" line_range="189" />
<code_context>
 [tool.mypy]
 files = ["src", "tests"]
 mypy_path = "stubs"
+num_workers = "auto"
 # set the platform
 python_version = "3.{{ python_min }}"
</code_context>
<issue_to_address>
**Pre-commit mypy stays serial**

When the pre-commit mypy hook runs, the pre-commit mypy hook passes `--config-file ''`, so it does not load `[tool.mypy]` and never sees `num_workers = "auto"`; that local mypy entry point continues using the default worker count.

Allow that hook to read the project config, or pass `--num-workers auto` explicitly if it must remain config-free.
</issue_to_address>

Sourcery assessment

Approval pending. 1 finding to address first.

Blocking findings: project_name/pyproject.toml.jinja:189

---

Sourcery is free for open source - if you like our reviews please consider sharing them ✨

• X
• Mastodon
• LinkedIn
• Facebook

[sourcery-ai]

🟡 Medium · Pre-commit mypy stays serial

When the pre-commit mypy hook runs, the pre-commit mypy hook passes --config-file '', so it does not load [tool.mypy] and never sees num_workers = "auto"; that local mypy entry point continues using the default worker count.

Allow that hook to read the project config, or pass --num-workers auto explicitly if it must remain config-free.

Prompt for AI agents

In `project_name/pyproject.toml.jinja` at line 189:

**Pre-commit mypy stays serial**

When the pre-commit mypy hook runs, the pre-commit mypy hook passes `--config-file ''`, so it does not load `[tool.mypy]` and never sees `num_workers = "auto"`; that local mypy entry point continues using the default worker count.

Allow that hook to read the project config, or pass `--num-workers auto` explicitly if it must remain config-free.