[OrcaWin]

	Files	Added	Deleted	Net
Test	0	0	0	0
Prod	1	$\color{#1a7f37}{\Huge{\mathbf{+}}}$​25	$\color{#cf222e}{\Huge{\mathbf{−}}}$​12	$\color{#1a7f37}{\Huge{\mathbf{+}}}$​13

What

The daily CI runner demand report failed for the first time today (run):

Error: Hourly run inventory exceeds API limit; split the interval

PR volume now goes past 1000 workflow runs in some hours (12,132 runs on 2026-10-26). The runs API serves at most 1000 results per query, so hourly windows no longer fit.

This change keeps the 24 hourly windows. Any window with total_count > 1000 is halved recursively until each half fits. Ranges stay inclusive at second granularity, with no overlap and no gaps.

Verification

I ran the patched script locally against the live API for the window that failed (CI_METRICS_END=2026-10-27T04:00:00Z):

• Collected 12,132 runs, all unique run ids.
• Sampled 501 runs and produced the full markdown report.
• pnpm test config/scripts/ci-runner-metrics.test.mjs passes.

After merge, I'll dispatch the workflow once to confirm it on CI.

[coderabbitai]

Walkthrough

The runner demand script now uses collectRuns for each hourly interval. The helper paginates queries with no more than 1,000 runs. When a query exceeds that limit, it divides the interval and combines results. It throws an error when an over-limit interval is shorter than two seconds.

Priority: Normal

Merge Risk: Low · up to 30dde

The report’s new oversized-window behavior lacks a test that would catch dropped runs. Add that targeted test before merging, or accept the bounded coverage gap.

Pre-merge checks: 3 · 2

Failed checks: 2 warnings

Check name	Status	Explanation	Resolution
Description check		The description explains the failure, the recursive interval-splitting change, and verification results. It does not follow the required template because it omits ELI5, Why, Linked Issue, Visual Proof…	Add the required template sections. Include an actual linked issue, or explain the applicable maintainer exception. Add a Visual Proof section with N/A and a reason if there is no UI change. Complete Testing, AI Disclosure when applicable, …
Docstring Coverage		Docstring coverage is 50.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Documentation-only edits and deletions within surv…	Write docstrings for the functions missing them to satisfy the coverage threshold.

Passed checks: 3 passed

Check name	Status	Explanation
Title check		The title clearly summarizes the main change: splitting busy hourly windows in the runner demand report instead of failing.
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

Full details: Description check

Explanation

The description explains the failure, the recursive interval-splitting change, and verification results. It does not follow the required template because it omits ELI5, Why, Linked Issue, Visual Proof or N/A, AI Disclosure, Review, Agent skill upstream boundary, Notes, and Checklist sections.

Resolution

Add the required template sections. Include an actual linked issue, or explain the applicable maintainer exception. Add a Visual Proof section with N/A and a reason if there is no UI change. Complete Testing, AI Disclosure when applicable, Review, Agent skill upstream boundary, Notes, and Checklist items. Rename or map the existing What and Verification content to the corresponding template sections.

Full details: Docstring Coverage

Explanation

Docstring coverage is 50.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Documentation-only edits and deletions within surviving functions are included; unchanged diff context and fully deleted functions are excluded. Analyzed 2 functions across 1 files.

Resolution

Write docstrings for the functions missing them to satisfy the coverage threshold.

Finishing Touches: 💡 1

📝 Generate docstrings: 💡

• Commit to this branch
• Create a new PR

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[coderabbitai]

Nitpick comments: 1

config/scripts/ci-runner-demand.mjs: 1

29-38: Trivial · Maintainability & Code Quality · Quick win

Cover the successful oversized-window split.

collectRunnerDemand returns runs, and the existing run fixture is in scope. The suggested test can pass against the current implementation. Add it to ensure both recursive halves reach the returned inventory.

Suggested fix

 it('paginates jobs and bounds run discovery to 24 complete hours', async () => {
@@
   expect(result.report.workflows[0].runnerMinutes).toBe(505)
 })
 
+it('combines runs from both halves of an oversized window', async () => {
+  const requests = []
+  const firstRun = { ...run, id: 11 }
+  const secondRun = { ...run, id: 12 }
+  const createdRange = (path) => decodeURIComponent(path.match(/created=([^&]+)/)[1])
+
+  const result = await collectRunnerDemand(
+    { CI_METRICS_END: '2026-09-28T04:59:00Z' },
+    async (path) => {
+      requests.push(path)
+      if (path.includes('/jobs')) {
+        return { total_count: 0, jobs: [] }
+      }
+      const runRequests = requests.filter((request) => request.startsWith('actions/runs?'))
+      if (runRequests.length === 1) {
+        return { total_count: 1001, workflow_runs: [] }
+      }
+      if (runRequests.length === 2) {
+        return { total_count: 1, workflow_runs: [firstRun] }
+      }
+      if (runRequests.length === 3) {
+        return { total_count: 1, workflow_runs: [secondRun] }
+      }
+      return { total_count: 0, workflow_runs: [] }
+    }
+  )
+
+  const runRequests = requests.filter((path) => path.startsWith('actions/runs?'))
+  expect(runRequests).toHaveLength(26)
+  expect(runRequests.slice(0, 3).map(createdRange)).toEqual([
+    '2026-09-28T03:00:00.000Z..2026-09-28T03:59:59.000Z',
+    '2026-09-28T03:00:00.000Z..2026-09-28T03:29:59.000Z',
+    '2026-09-28T03:30:00.000Z..2026-09-28T03:59:59.000Z'
+  ])
+  expect(result.runs.map(({ id }) => id)).toEqual([11, 12])
+})

---

Review info

Run configuration

• Source mode: Auto
• Repository: Unavailable
• Branch: Unavailable
• File: No configuration file from this repository applied
• Commit: Unavailable
• Layers: Repository UI
• Review profile: CHILL
• Plan: Advanced
• Run ID: 394ddc5a-20d6-4e51-9c5a-05e014e15ca6

Commits

Reviewing files that changed from the base of the PR and between 755bbfa and 30dde6e.

Files selected for processing: 1

• config/scripts/ci-runner-demand.mjs

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