feat(tome): graph-backed research engine with metrics harness #55

	name: Type Check (strict mypy, all plugins)

	# Enforces strict mypy across every plugin on each PR. The local
	# pre-commit `run-plugin-typecheck` hook runs the same `make typecheck`
	# (--all) target, but only fires for people who have hooks installed and
	# only on commit. This gate guarantees the whole monorepo is type-checked
	# before merge, so type errors stop accumulating in plugins a given change
	# did not touch.
	#
	# Why per-plugin and not one root mypy run: each plugin is its own
	# src-layout package with its own strict [tool.mypy] config. A single
	# `mypy plugins/` from the root collides on duplicate module names
	# (e.g. abstract.utils). run-plugin-typecheck.sh cd's into each plugin
	# and runs `uv run mypy` in that plugin's environment.

	on:
	push:
	branches: [main, master]
	paths:
	- "plugins/*/.py"
	- "plugins/**/pyproject.toml"
	- "scripts/run-plugin-typecheck.sh"
	- "Makefile"
	- ".github/workflows/typecheck.yml"
	pull_request:
	paths:
	- "plugins/*/.py"
	- "plugins/**/pyproject.toml"
	- "scripts/run-plugin-typecheck.sh"
	- "Makefile"
	- ".github/workflows/typecheck.yml"
	workflow_dispatch:

	concurrency:
	group: typecheck-${{ github.ref }}
	cancel-in-progress: true

	jobs:
	typecheck:
	name: strict mypy across all plugins
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v7

	- name: Set up Python
	uses: actions/setup-python@v6
	with:
	python-version: "3.12"

	- name: Install uv
	uses: astral-sh/setup-uv@v8.3.2

	- name: Run strict type checking
	run: make typecheck

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