How should the SPECIFY FEATURE environment variables be configured?

[migodev42]

Description

I am seeking clarification on the correct way to implement the SPECIFY_FEATURE environment variable within spec-kit. Currently, I am attempting to isolate or prioritize specific features during execution, but the configuration does not seem to be recognized by the system.

Attempted Configurations

I have tried the following methods to define the variable, but neither has yielded the expected results:

1. Via .env file:
   Added the following line to the root .env file:

SPECIFY_FEATURE="xxx-feature"

2. Via Agent Definition (e.g., QWEN.md):
   Included the variable within the metadata/configuration section of the Agent file:

SPECIFY_FEATURE="xxx-feature"

Observed Behavior

Despite these definitions, the system appears to ignore the SPECIFY_FEATURE flag, when I use /speckit.specify it always create a new branch.

Questions

• What is the intended scope and priority for the SPECIFY_FEATURE variable?
• Is there a specific syntax or a different configuration file (e.g., a global config or CLI flag) required to make this effective?