VS Code Quickstart

Install a Packata Language Support VSIX for your platform using Extensions: Install from VSIX, then open a trusted folder with an ODCS 3.2.0 or Data Package v2 YAML/JSON descriptor. The package bundles its server and runtime; see the extension installation instructions.

Validate a descriptor

  1. Open the descriptor or select it in Packata → Data Contracts.
  2. Run Packata: Validate… from the Command Palette or file context menu.
  3. Select Schema, Semantic, or both, then press Enter.
  4. Read categorized findings in Problems and per-check outcomes in Packata Validation.

Schema validates the descriptor, not dataset rows. A schema-only success says Schema checks passed · Semantic not run. The semantic checklist explains the second layer. Neither layer reads dataset contents.

The picker remembers confirmed choices per workspace and format across restarts. Escape preserves them. Packata: Run Last Validation, or the editor status-bar action with its scope tooltip, repeats them. Edits mark results outdated; rerunning replaces their diagnostics. See the VS Code reference for blocked checks, cancellation and execution errors.

To preview a local or public/pre-signed HTTP/HTTPS CSV, TSV, PSV or Excel resource, run Packata: Preview Resource Data… or right-click a supported asset in the tree. Select a resource and a positive maximum number of data rows (default 20). The table shows columns, types and the bounded sample; loading can be canceled. See the preview scope and transfer limits.