Date: 2026-09-10

Environment variables

Environment variables provide process configuration and credentials only where the current source reads them. They are not a portable settings API.

Use the current implementation

Use the package source and installed help to identify accepted variables. Set secrets through a protected host mechanism, verify the selected configuration without printing values, and clear temporary variables after use.

Boundaries and safety

Never paste environment dumps into issues or prompts. An unrecognized variable may be ignored, and a recognized variable may be overridden by CLI arguments or policy.