Syntax Validation: Stage/Job/Step Hierarchy and Task Format Errors

Problem/Feature Description

A developer on a distributed team has written their first Azure DevOps pipeline. The pipeline fails to queue in Azure DevOps with a generic "YAML parsing error" message. The developer suspects there are multiple structural issues but cannot identify them from the error message alone.

Validate the pipeline syntax below. Identify every structural and schema violation, explain each error clearly, and produce a corrected version of the file.

Output Specification

Produce:

• A corrected azure-pipelines.yml with all syntax errors fixed
• A syntax-report.md listing each error with: the location (stage/job/step name or line reference), the rule violated, and the correction applied

Input Files

The following file is provided as input.

=============== FILE: inputs/azure-pipelines.yml =============== trigger:

• main

stages:

• stage: CI jobs:

  • job: Test steps:
    • task: Npm inputs: command: 'install'
    • task: Npm@1 inputs: command: 'test'
    • script: echo "Tests passed"
  • job: Build dependsOn: Test steps:
    • task: Docker@2 inputs: command: buildAndPush repository: myrepo/myimage dockerfile: Dockerfile containerRegistry: myServiceConnection

• stage: CD dependsOn: jobs:

  • job: Deploy steps:
    • task: AzureWebApp@1 inputs: azureSubscription: $(AZURE_SUBSCRIPTION) appName: my-app package: '$(System.DefaultWorkingDirectory)/**/*.zip'