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agent-ergonomics: pin Python 3.12 for cold installs #1

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Merged
docxology merged 1 commit into from
Sep 1, 2026
Merged

agent-ergonomics: pin Python 3.12 for cold installs #1

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1 change: 1 addition & 0 deletions .python-version
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3.12
5 changes: 4 additions & 1 deletion docs/environment.md
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START supports Python 3.10, 3.11, and 3.12. Use the locked `uv` environment
for local commands, CI, and documentation builds so dependency resolution does
not vary between surfaces.
not vary between surfaces. The repo pins the interpreter with
[`.python-version`](../.python-version) (`3.12`) because key dependencies (e.g.
`spacy`) publish no wheel for newer CPythons; without the pin a cold `uv run`
on a 3.14-default machine fails at install time.

```bash
uv sync --all-extras --dev
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