[matifali]

The copilot_model variable was restricted to a hardcoded enum of three models (claude-sonnet-4, claude-sonnet-4.5, gpt-5). Models change fast and this validation was blocking users from using newer models.

Changes

• Remove validation block from copilot_model variable in main.tf
• Update variable description to indicate any Copilot-supported model can be used
• Replace enum validation test with a test that verifies arbitrary model strings are accepted
• Bump module version to 0.4.1 in README examples

Closes #832

🤖 This PR was created with the help of Coder Agents, and needs a human review. 🧑‍💻

[Copilot]

Pull request overview

This PR removes hardcoded copilot_model enum validation in the Copilot module so users can specify any GitHub Copilot-supported model string without being blocked by outdated allowlists.

Changes:

• Removed the copilot_model variable enum validation and updated its description to allow any Copilot-supported model.
• Updated Terraform tests to confirm arbitrary model strings are accepted and still produce the expected environment variable behavior.
• Bumped README example module version pins to 0.4.1.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
registry/coder-labs/modules/copilot/main.tf	Removes strict model allowlist validation and updates variable description.
registry/coder-labs/modules/copilot/copilot.tftest.hcl	Replaces allowlist-based test coverage with a custom-model acceptance plan test.
registry/coder-labs/modules/copilot/README.md	Updates module version pins in examples to 0.4.1.

[35C4n0r]

LGTM!