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guard

Combines destructive command warnings with directory-scoped edit restrictions for safer terminal sessions.

107|7|Updated Mar 29, 2026
Search Tags:#production#hooks#bash#safety#freeze#edit boundary#destructive commands
One-click install
npx skills add https://github.com/no-session/pstack --skill guard-no-session
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: guard
Source: https://github.com/no-session/pstack/tree/main/guard
Command: npx skills add https://github.com/no-session/pstack --skill guard-no-session

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve? When working on production systems or debugging live environments, a single destructive command (rm -rf, DROP TABLE, force-push) or an edit to the wrong file can cause serious damage. Guard mode activates two layers of protection at once so you can work with reduced risk. ## Core Features & Use Cases - Destructive Command Warnings: Intercepts dangerous Bash commands like rm -rf, DROP TABLE, and force-push before execution, warning you first (with override option). - Directory-Scoped Edit Boundary: Blocks Edit and Write operations outside a directory you specify, enforced via PreToolUse hooks. - Combined Activation: Merges the /careful and /freeze skills into a single command for maximum safety. - Use Case: You are hotfixing a bug in a live production repo. Activate guard mode scoped to the service directory so accidental edits elsewhere are blocked and any destructive shell command triggers a warning first. ## Quick Start Ask the AI to activate guard mode and restrict edits to your project directory, for example: turn on guard mode and lock edits to the src folder.

Frequently Asked Questions about guard

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I block file edits outside a specific directory?▼

Activate guard mode and provide a directory path when prompted. The skill resolves it to an absolute path, saves it to a freeze state file, and PreToolUse hooks then block Edit and Write operations targeting files outside that boundary.

How do I get warnings before running destructive shell commands?▼

Guard mode hooks into Bash tool calls and checks commands against destructive patterns like rm -rf, DROP TABLE, and force-push before execution. You receive a warning and can choose to override it.

Does guard mode require other skills to be installed?▼

Yes. Guard depends on hook scripts from the sibling careful and freeze skill directories. Both must be installed, which the pstack setup script handles automatically.

How do I turn off the edit boundary after activating guard mode?▼

Run the /unfreeze command to remove the directory edit restriction. To deactivate all protections entirely, end the current session.

Can I override a destructive command warning in guard mode?▼

Yes. Destructive command warnings are advisory and can be overridden by the user. However, edits outside the freeze boundary are hard-blocked until you run /unfreeze or end the session.

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