YAML

yaml-language-server

Schema-aware YAML support for CI pipelines, Docker Compose, Kubernetes manifests, deployment config, and tool settings.

Delivery

bundled npm server

Activation

.yaml and .yml files

Capabilities

Validates indentation, structure, known fields, schema requirements, and malformed values.

Completes schema-backed fields for recognized workflow, compose, Kubernetes, and deployment files.

Reports YAML problems through the Problems panel and editor diagnostics.

Open the repository root because YAML meaning often depends on folder location.

Rely on schema matching for practical, tool-specific validation.

Treat release packaging errors as real dependency inclusion problems.

No schema completions usually means the file does not match a known schema.

Generic diagnostics mean parsing works but tool-specific schema validation is unavailable.

Release failures can come from missing language-server runtime modules.