demo git:20261019.6adf6dcC

Immutable. This exact content never changes and is served at /api/v1/blob/beec4b9c0ad111b8.

# Demo skill

Run `scripts/bash-tool.sh --check` by its resolved path, or as
`bash scripts/bash-tool.sh --check`, the interpreter its shebang names.
Run `sh scripts/posix-tool.sh` freely: its shebang names `sh`.