Back to work
Blast Shield
Shows what a risky command will change · Developer Tools
A Claude Code mod that holds a risky shell command, shows what it would touch and whether you can undo it, and runs it only when you press Proceed. A fork of Blast Radius, the mod Anthropic's DevRel team shared. The hold-and-ask design is theirs; I widened the coverage and the explanations.
View source on GitHubKey features
- Measures with dry runs where the tool has one, such as git clean -n, kubectl --dry-run=client and terraform plan -destroy
- When a dry run fails, the pane says so and still holds the command
- Cancel has focus, and no answer in 10 minutes refuses the command
Impact
You see the damage before it happens. It reads command text, so the README calls it a safety net and not a permission system.
Tech stack
JavaScript, Claude Code mods