require-azure-pipelines-trigger-branches

Require explicit branch filters for Azure Pipelines push triggers.

Targeted pattern scope

• trigger: in azure-pipelines.yml.
• Missing trigger.branches nested filter.

What this rule reports

This rule reports trigger configurations that do not explicitly scope push branches.

Why this rule exists

Branch-scoped push triggers prevent accidental CI overreach or undercoverage when trigger config drifts.

❌ Incorrect

trigger:
  batch: true

✅ Correct

trigger:
  branches:
    include:
      - main

When not to use it

Disable this rule if branch-scoping is intentionally handled outside repository YAML.

Rule catalog ID: R103

Further reading

• Azure Pipelines trigger schema