g2g

Command identity and discovery

The command, project, module, repository, formula and this skill are all g2g. The tool was once called gt2gh, and that name survives only where it is a historical fact: tags and release assets published under it, and the tap's formula_renames.json, which is what migrates installs made under the old name. Do not reintroduce it anywhere else.
At the start of a task, reuse a usable command already resolved in the task context. Otherwise discover it once locally: try g2g --version, then gt2gh --version, which is worth one attempt only for an install predating the rename. Select the first that succeeds. If neither works, say the user must run brew install shhac/tap/g2g or provide a built binary; do not assume either exists.
Record the selected command and use it for every later invocation. Do not re-detect unless it fails or the environment changes.