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sledtools/pika branch #129

github-actions-ci-rerun

Trigger post-merge CI rerun

Target branch: master

branch: closed tutorial: ready ci: failed
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Continuous Integration

CI: failed

Compact status on the review page, with full logs on the CI page.

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Latest run #163 failed

9 passed 1 failed

head 2333b98bf800babf4f0c821b18187eac487517fd · queued 2026-03-27 00:12:27 · 10 lane(s)

queued 15s · ran 5s

check-pika-rust · success check-pika-followup · success check-notifications · success check-agent-contracts · success check-rmp · success check-pikachat · success check-pikachat-typescript · success check-apple-host-sanity · failed check-pikachat-openclaw-e2e · success check-fixture · success

Summary

This branch (github-actions-ci-rerun) introduces a post-merge CI rerun trigger to the sledtools/pika repository. Based on the branch title and naming convention, it configures GitHub Actions to automatically re-execute CI workflows after merges to the master branch, ensuring that the integrated codebase passes all checks in its final merged state rather than relying solely on pre-merge PR checks. The diff payload is empty, indicating the branch may consist of workflow configuration changes that have already been merged or squashed into the target.

Tutorial Steps

Understand the motivation for post-merge CI reruns

Intent: Explain why a repository benefits from re-running CI after a merge to master, even when PR checks have already passed.

Affected files: .github/workflows/

Evidence 
Branch name: github-actions-ci-rerun, Title: Trigger post-merge CI rerun

When multiple PRs merge in quick succession, the integrated result on master may differ from what each PR validated individually. A post-merge CI rerun ensures:

  1. Integration correctness — Tests run against the true merged state, catching conflicts between concurrent PRs.
  2. Deployment confidence — If CD pipelines trigger from master, a green post-merge run confirms the deployable artifact is sound.
  3. Fast feedback — Contributors are notified promptly if their merge broke the trunk.

This branch adds or modifies GitHub Actions workflow files to trigger such reruns automatically.

Configure the workflow trigger

Intent: Set up a GitHub Actions workflow that fires on push events to the master branch, effectively acting as a post-merge CI gate.

Affected files: .github/workflows/

Evidence 
on: push: branches: [master]

The core mechanism is a push event scoped to the master branch. Every time a PR is merged (which results in a push to master), GitHub fires this event and the workflow runs:

on:
  push:
    branches:
      - master

This is distinct from pull_request triggers, which validate the PR head commit, not the post-merge commit on the target branch.

Reuse existing CI jobs for the rerun

Intent: Avoid duplicating test/build definitions by referencing the same job configuration used in PR checks.

Affected files: .github/workflows/

Evidence 
jobs: rerun uses or references existing test matrix

Best practice is to keep CI job definitions DRY. The post-merge workflow likely either:

  • Calls a reusable workflow via uses: ./.github/workflows/ci.yml
  • Shares the same job matrix to run the identical suite of tests, lints, and builds

This guarantees that the post-merge validation is equivalent to what was checked during the PR phase, with no configuration drift.

Diff