SeamShield CLI

SeamShield stops vibe-coded apps shipping with security holes. Every push is checked in about a second, risky changes get a deep review, and fixes go straight back to your AI agent.

This CLI connects your machine and your agents to SeamShield.

Install

npm i -g @seamshield/cli

Or run any command without installing: npx @seamshield/cli <command>. Needs Node 22 or later.

Connect your coding agent

In your repo folder:

npx @seamshield/cli connect

It signs you in (your browser opens), finds Claude Code, Codex or Cursor on this machine, adds SeamShield's MCP server to each one's own config, and turns on the agent guard. The token is written to the agent's config on your machine, never into the repo.

Commands

seamshield connect            # connect your coding agent, in one step
seamshield login              # sign in this device (opens your browser)
seamshield check              # tripwire on your local changes, before you push
seamshield scan [--send]      # mock data, unfinished features, dead code, copy-pasted functions
seamshield issues [--repo x]  # open findings for this repo
seamshield guard install --agent claude-code|codex|cursor
seamshield guard remove  --agent claude-code|codex|cursor

• check and guard run on your machine. Your code is never sent anywhere; only a pass or fail count is reported to SeamShield.
• Agent guard checks each change on your machine and never makes anyone wait. In Claude Code it runs in the background after each edit and only speaks up when something needs fixing. For every agent, including ones SeamShield doesn't know by name, a git pre-push hook checks each push and lets it through (set git config seamshield.block true to stop risky pushes instead).
• scan is free and runs on your machine. On Builder and Team, scan --send shares the list (never the code) and your agent gets each one as a task through MCP (get_tasks).
• Connect your agent to SeamShield's MCP server so it can read and resolve findings. Copy the command from the app: Settings, Agent access.

Links

• Docs: https://seamshield.com/docs
• Security: [email protected]

SeamShield is a THAUMELAN (Pty) Ltd company. MIT licence.