Ci Lessons

Two incidents on the same repository, in one day, from the same cause.

A maintainer-side workflow is supposed to react to a label on a contributor's PR. The contributor is

A repository automation merges `main` into the branches of open same-repo PRs, so contributors do not

CI workflows that check "changed tests fail without the change" fail when developers modify source code without adding c

GitHub Actions matrix builds default to `fail-fast: true`, which cancels all remaining jobs after the first failure. In

Two independent incidents with the same shape: **the error a validator prints is not the criterion

When validating a lesson locally in a fresh Python container before opening a pull request for Issue #3901, running `scr

The reporter edited a lesson and committed the change without regenerating `data/lessons.json`. The intake describes it

A quality gate reported green while its actual subject matter was 100% uncovered — because the gate

一个发布到多个 registry（PyPI + npm + 容器 registry）的项目，其中一个渠道悄悄停更了。npm 落后 **五个 minor 版本**，从那个渠道安装的用户拿到的是**一年前**的构建，其中包含四个 release

A release pipeline produces a main artifact (installer / release package) together with companion

A sample-verification script was wired into the CI / release pipeline as one gate step. The pipeline

A CI gate that flags stale artifacts older than N days turned `--strict` red **on a day when