speckit-git-feature

# Create Feature Branch Create and switch to a new git feature branch for the given specification. This command handles **branch creation only** — the spec directory and files are created by the core `/speckit.specify` workflow. ## User Input ```text $ARGUMENTS ``` You **MUST** consider the user input before proceeding (if not empty). ## Environment Variable Override If the user explicitly provided `GIT_BRANCH_NAME` (e.g., via environment variable, argument, or in their request), pass it through to the script by setting the `GIT_BRANCH_NAME` environment variable before invoking the script. When `GIT_BRANCH_NAME` is set: - The script uses the exact value as the branch name, bypassing all prefix/suffix generation - `--short-name`, `--number`, and `--timestamp` flags are ignored - `FEATURE_NUM` is extracted from the name if it starts with a numeric prefix, otherwise set to the full branch name ## Prerequisites - Verify Git is available by running `git rev-parse --is-inside-work-tree 2>/dev/null` - If Git is not available, warn the user and skip branch creation ## Branch Numbering Mode Determine the branch numbering strategy by checking configuration in this order: 1. Check `.specify/extensions/git/git-config.yml` for `branch_numbering` value 2. Check `.specify/init-options.json` for `branch_numbering` value (backward compatibility) 3. Default to `sequential` if neither exists ## Execution Generate a concise short name (2-4 words) for the branch: - Analyze the featur...