provisioning/.migration/knowledge/ENV_MAPPING_CARD.md

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# ENV → Accessor Mapping (Token-Efficient Reference)
## Critical Mappings
### Core Variables
```nushell
$env.PROVISIONING → (get-base-path)
$env.PROVISIONING_DEBUG → (is-debug-enabled)
$env.PROVISIONING_OUT → (get-provisioning-out)
$env.PROVISIONING_ARGS → (get-provisioning-args)
$env.PROVISIONING_MODULE → (get-provisioning-module)
$env.PROVISIONING_NAME → (get-provisioning-name)
```
### Path Variables
```nushell
$env.PROVISIONING_PROVIDERS_PATH → (get-providers-path)
$env.PROVISIONING_TASKSERVS_PATH → (get-taskservs-path)
$env.PROVISIONING_TOOLS_PATH → (get-tools-path)
$env.PROVISIONING_TEMPLATES_PATH → (get-templates-path)
```
### Runtime Variables (Keep as ENV)
```nushell
$env.PROVISIONING_ARGS # Command arguments - KEEP
$env.PROVISIONING_OUT # Output redirection - KEEP
$env.NOW # Timestamps - KEEP
$env.CURRENT_* # Context variables - KEEP
```
## Usage Pattern
```nushell
# Always wrap in parentheses
let value = ((get-function-name) | default "fallback")
```