[authoring-antigravity-skills] Need extra configuration to add the license text from the skill

[phaninv]

While practicing "Authoring skills" section in the Code Labs

Level 2: Asset Utilization (license-header-adder)
Below is the snippet to create file with license header:

Create a new file my_script.py with the following python code:

def hello():
print("Hello, World!")

When I tried the prompt with "GPT-OSS 120B (Medium)" as my Gemini model limit was exhausted, it didn't add the license text by default.

Below is the response for the query:
"If I use any other model will it invoke the skills automatically ?
How should I configure the skill to be invoked in my prompt?"

About automatic skill invocation

Question	Answer
Will any other model automatically invoke the license-header-adder skill when a file is created?	No. The skill is not tied to a specific LLM. Skills are explicitly invoked by the agent (i.e., by us). Changing the underlying model does not cause automatic execution of skills.
How to configure the skill to be invoked in a prompt?	Include an explicit instruction in your prompt that calls the skill, e.g.: \nWhen creating a new Python file, first run the `license-header-adder` skill to prepend the appropriate license header.\n The agent will then follow the skill’s steps: read resources/HEADER_TEMPLATE.txt, convert it to # comments for Python, and prepend it to the new file’s contents. You can also create a small wrapper command or sub‑agent that always runs this skill after any write_to_file operation.

If you’d like a more permanent automation (e.g., “every new .py file automatically gets the header”), let me know and I can set up a small helper sub‑agent or script that watches for file‑creation events and runs the license-header-adder skill automatically.