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ci(workflows): measured timeout-minutes on 17 jobs, PR-only concurrency on 11 workflows, a paths filter on check-links #24

	name: Engine Split Metric (ADR-0076 D7)

	# Tracks the D7 repo-split trigger metric (#2462): the cross-package commit
	# ratio of the ObjectQL engine core (engine.ts / registry.ts). The engine may
	# only be extracted into its own repo once this ratio is low and stable
	# (~88% at ADR time). Report-only — no gate until a threshold is agreed
	# (ADR-0076 OQ#5); the ratio lands in the run's step summary.

	on:
	schedule:
	- cron: '17 3 * * 1' # weekly, Monday 03:17 UTC
	workflow_dispatch: {}
	pull_request:
	paths:
	- 'scripts/check-engine-split-ratio.mjs'
	- '.github/workflows/engine-split-metric.yml'

	permissions:
	contents: read

	# A newer run for the same pull request supersedes this one, so the older run is
	# cancelled. The group key is ci.yml's shape; `cancel-in-progress` is true only on
	# `pull_request`, so no other event's run is ever cancelled. The schedule and dispatch
	# runs share a group keyed on their own event and wait for each other instead.
	concurrency:
	group: engine-split-metric-${{ github.workflow }}-${{ github.event_name }}-${{ github.event.pull_request.number \|\| github.event.after \|\| github.ref }}
	cancel-in-progress: ${{ github.event_name == 'pull_request' }}

	jobs:
	ratio:
	name: Engine cross-package commit ratio
	runs-on: ubuntu-latest
	timeout-minutes: 10
	steps:
	- name: Checkout repository (full history)
	uses: actions/checkout@v7
	with:
	fetch-depth: 0

	- name: Compute ratio (90-day window)
	run: node scripts/check-engine-split-ratio.mjs --days 90