Online Jenkins Pipeline Validator

This tool analyzes Jenkinsfiles to verify syntax, structure, and compatibility for both Declarative and Scripted pipelines. It does not execute pipelines; it provides a static assessment that users can trust to catch issues before run-time. The analysis yields a pass/fail result, a structured list of errors with line and column hints, and remediation guidance for each issue.\n\nThe core logic builds an AST-like representation of the Jenkinsfile, validates mandatory blocks (for Declarative: agent, stages, steps, post; for Scripted: node, stage blocks, and steps), and applies a configurable rule set to detect common anti-patterns and deprecated constructs. External plugin behavior is not executed, but plugin usage patterns may be flagged when detectable from the script. Outputs are designed for integration with CI checks and developer review systems.\n\nThis tool benefits DevOps engineers, release engineers, and CI/CD teams who want early quality gates. By surfacing exact locations of errors and concrete fixes, it reduces back-and-forth debugging and accelerates pull requests and build promotions. Optional checks can include Jenkins version compatibility hints, parallel stage validation, and when-syntax evaluation, providing guidance on whether a pipeline will behave as expected across environments. The tool's outputs are structured for automation (e.g., JSON results) and can be consumed by other tooling in your CI/CD ecosystem. Use cases include pre-commit validation, pull request gates, and linting as part of a repository's quality suite.