AI Agent Permissions And Least Privilege
AI agent permissions (least privilege): AI agent permissions are the accounts, data and actions an agent is allowed to use, and least privilege is the security rule that each agent should get only what its job requires. NIST defines least privilege as limiting access to the minimum necessary to accomplish assigned tasks.
Why It Matters More For Agents
OWASP names “excessive agency” as a top risk for AI apps and traces it to three causes: too many tools, too much access and too much freedom to act without checks. An agent that can only draft quotes can’t be tricked into emptying a mailbox.
Three Layers To Decide
Which apps: the scheduling agent needs your calendar, not your bank. Which actions: read and draft freely, send only with your approval. Which people: who on the team can give this agent work.
Start Narrow, Widen With Evidence
Give a new agent one app and one job. Look over a week of its work. If it’s accurate, add the next app. Adding access after a good run is easy; pulling it back after a problem is harder.
Review It Like Staff Access
When a job changes, the agent’s access should change with it. A regular look at which agents can use which apps catches leftovers, like an agent that can still reach a supplier portal you stopped using.
Side By Side
| Agent’s job | Needs | Doesn’t need |
|---|---|---|
| Inbox sorter | Read and label email, write drafts | Sending, deleting, other accounts |
| Invoice chaser | Accounting app (view), email drafts | Bank account, payment buttons |
| Lead logger | Inquiry inbox, CRM (add and edit) | Deleting CRM records, billing settings |
| Social drafter | Brand files, draft posts | Publishing without your OK |
Worth Remembering
- Give each agent only the apps, actions and data its job needs.
- Too much access, too many tools and too much freedom are the three risks.
- Start with one app and widen after a good run.
- Review agent access whenever a job changes.
In Octopus Prime
In Octopus Prime you connect an app once at Settings › Connections and pick which agents can use it, so each agent reaches only its own apps. Sending, publishing, deleting and moving money wait for your OK by default. On the Business plan, admins also get shared vaults and access limits for the team.
From $10/month 30 days free No credit card
Questions
Isn’t it easier to give the agent access to everything?
Easier on day one, riskier every day after. A mistake or a trick can only reach what the agent can reach.
What if the app has no read-only option?
Then the approval step does the limiting: the agent prepares changes, and the risky ones wait for you.
Should each agent have its own access?
Yes. Separate agents with separate access keep a problem with one from spreading to the others.
How often should I review agent access?
Whenever a job changes, and on a regular schedule, the same way you’d review an employee’s access.
AI agents that work in your apps. On computers you own.
From $10/month 30 days free No credit card
