[auxesis]

Summary

CI for this repository cost about $4,000 a month on Blacksmith runners at the pace of October 2026. The budget is $1,000 a month, shared with other repositories. This pull request records how we plan to get under it, in two decision records and a glossary. It changes no code.

Changes

• ADR 0002: light jobs move to GitHub-hosted runners. Those runners cost nothing for this public repository. Heavy jobs move to RunsOn. RunsOn starts a machine in our own AWS account for each job.
• ADR 0003: checks split into push checks and gate checks. Push checks run on every push to a pull request. Gate checks are the expensive ones. They run once, in merge queues on main and next.
• .github/CONTEXT.md: a glossary of the CI terms the two records use, such as "selector job", "summary job", and "early run".
• CONTEXT-MAP.md: a link to the new glossary.

Verification

No check covers these files, because they are documents only. The pull request stacked on this one passes pnpm run test:scripts with these files in its tree.

Related

• No GitHub issue.
• ci(test-eql): run the Postgres suite only for changes to EQL #1417 is stacked on this branch. It is the first change that follows these records.

Review notes

• The figures come from Blacksmith's and GitHub's billing reports for October 2026, and from the job records in GitHub's API.
• Nothing here takes effect until the follow-up pull requests land.

[changeset-bot]

⚠️ No Changeset found

Latest commit: 5ca9913

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[coderabbitai]

Important

Draft PR not reviewed

Draft PRs are not automatically reviewed by default.

• Trigger a manual review

To automatically review draft PRs, update your CodeRabbit configuration:

reviews:
  auto_review:
    drafts: true

• Autofix · Keep fixing CodeRabbit findings and required CI, and resolving merge conflicts

_{Comment @coderabbitai help to get the list of available commands.}