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Guardrails for AI coding agents — block catastrophic tool calls before they run. Semantic, agent-neutral, near-zero false positives.

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# Use via CDN

jsDelivr

jsDelivr serves any public GitHub repository as a CDN with zero setup. Pick a version and a file to get a ready-to-paste link and snippet.

Command Glossary

Commands referenced in this DOCs, explained below.

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brew install

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Install a Homebrew formula or cask.

brew install {{formula|cask}}

Install a formula/cask:

brew install {{[-s|--build-from-source]}} {{formula}}

Build and install a formula from source (dependencies will still be installed from bottles):

brew install {{[-n|--dry-run]}} {{formula|cask}}

Download the manifest, print what would be installed but don't actually install anything:

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claude

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An agent-based coding tool that understands your code base and helps you code faster through natural language commands.

claude prompt

Execute with prompt:

claude update

Update `claude`:

claude mcp list

Get the list of specified MCP servers:

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crontab

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Schedule cron jobs to run on a time interval for the current user.

crontab -e

[e]dit the crontab file for the current user:

sudo crontab -e -u {{user}}

[e]dit the crontab file for a specific [u]ser:

crontab {{path/to/file}}

Replace the current crontab with the contents of the given file:

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git push

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Push commits to a remote repository.

git push

Send local changes in the current branch to its default remote counterpart:

git push {{remote_name}} {{local_branch}}

Send changes from a specific local branch to its remote counterpart:

git push {{[-u|--set-upstream]}} {{remote_name}} {{local_branch}}

Send changes from a specific local branch to its remote counterpart, and set the remote one as the default push/pull target of the local one:

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git reset

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Undo commits or unstage changes by resetting the current Git HEAD to the specified state.
If a path is passed, it works as "unstage"; if a commit hash or branch is passed, it works as "uncommit".

git reset

Unstage everything:

git reset {{path/to/file1 path/to/file2 ...}}

Unstage specific file(s):

git reset {{[-p|--patch]}} {{path/to/file}}

Interactively unstage portions of a file:

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npm install

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Install Node packages.

npm {{[i|install]}}

Install dependencies listed in `package.json`:

npm {{[i|install]}} {{package_name}}@{{version}}

Download a specific version of a package and add it to the list of dependencies in `package.json`:

npm {{[i|install]}} {{package_name}} {{[-D|--save-dev]}}

Download the latest version of a package and add it to the list of dev dependencies in `package.json`:

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npm

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JavaScript and Node.js package manager.
Manage Node.js projects and their module dependencies.
Some subcommands such as `install`, `run`, etc. have their own usage documentation.

npm init {{[-y|--yes]}}

Create a `package.json` file with default values (omit `--yes` to do it interactively):

npm {{[i|install]}}

Download all the packages listed as dependencies in `package.json`:

npm {{[i|install]}} {{package_name}}@{{version}}

Download a specific version of a package and add it to the list of dependencies in `package.json`:

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pip install

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Install Python packages.

pip install {{package1 package2 ...}}

Install one or more packages:

pip install {{package1 package2 ...}} {{[-U|--upgrade]}}

Upgrade all specified packages to the latest version, installing any that are not already present:

pip install {{package}}=={{version}}

Install a specific version of a package:

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systemctl enable

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Enable systemd services.
See also: `systemctl revert`.

systemctl enable {{unit}}

Enable a service to run on boot:

systemctl enable {{unit}} --now

Enable a service to run on boot and start it now:

systemctl enable {{unit}} --user

Enable a user unit to run on login:

// repository documentation