The bullet in `prompts/REPO_POLICIES.md` that requires a `Dockerfile` said every Dockerfile installs its prerequisites by running `script/bootstrap`, while the canonical Go `Dockerfile` never runs it.
The bullet now says the gate phases and the build stage start from their pinned base images and install what those images lack either inline, as the Go example does for `git`, or by running `script/bootstrap`, as the `prompts` repo's own `Dockerfile` does for its yarn packages. The development environment stage, the final stage of a non-server repo, runs `script/bootstrap`. The new repo checklist says the same.
Model: opus-5-5