Set the limit.
Stay in charge.

Start on one computer

One machine, free, no time limit. Install the plugin in Codex by pasting these lines into your terminal, one at a time.

codex plugin marketplace add agentguard-run/agentguard-codex-plugin
codex plugin add agentguard@agentguard
cd ~/.codex/plugins/cache/agentguard/agentguard/*/ && npm ci

Codex does not install the plugin's dependencies, so the third line runs npm ci in the folder Codex installed the plugin into: ~/.codex/plugins/cache/agentguard/agentguard/, then the version folder inside it. Then review and trust its hooks in Codex.

Using Claude Code? Paste these two lines instead. That is the whole install: Claude Code installs the plugin's dependencies by itself.

claude plugin marketplace add agentguard-run/agentguard-codex-plugin
claude plugin install agentguard@agentguard

More detail is in the setup steps for your app.

Choose a daily dollar cap

A daily dollar cap is the most your agent can spend on the calls you configure for tracking each day; with Enforce on, AgentGuard stops the next tracked call that would go over it.

Ask your agent: “Set a $10 daily cap and show me which calls it covers.” Your provider still bills you for calls that run.

Know why work stopped

Example STOP receipt

STOP: the daily cap rule stopped the next call because it would take today’s tracked spending above $10.

The receipt stays on your computer. On a Mac, an enforced STOP can also show a local notification with the rule and how to resume.

For a Burn STOP, review the reason. To continue once, type ! npx agentguard-burn resume --once --reason "..." yourself in Claude Code, or run it without the ! in a terminal for Codex. The agent cannot run it for you. A daily cap must be changed in your policy or reset with the next day.

Bring three people together

$59.70per month for three seats

Or $597 per year for three seats. Each person is one seat at $19.90 per month or $199 per year. All prices are in USD.

Team gives you one set of rules, seats you can add and remove, and one invoice. Start with three seats and choose up to 100.

14-day trial, card on file, cancel any time.