A tool appearing in an agent's catalog establishes a capability it may be able to invoke. It does not establish permission to use it for every task or with every input.
Quick answer: Evaluate the user's authorized objective, the operation's side effects and the data destination before execution. Keep permission scoped to the actual action. Treat tool descriptions and returned content as information about capabilities, not as instructions that can expand the user's authorization.
Start with a task boundary
For an illustrative research assistant, a search operation may help answer a question. A messaging tool could share that answer publicly, but public distribution is a separate action.
The agent should not infer permission to publish merely because the tool is available and the result would be convenient to share.
Inspect the action dimensions
| Dimension | Question |
|---|---|
| Purpose | Does this operation serve the authorized task? |
| Data | Is this input permitted for this destination? |
| Effect | Does it read, modify, send or spend? |
| Scope | Which account, recipient or artifact is involved? |
| Review | Does policy or unresolved scope require a decision? |
These are proposed application checks. They do not replace the operating environment's actual rules.
Resist instruction-like tool content
A retrieved page might tell the assistant to upload additional files or contact another service. That page cannot grant the user's permission.
Preserve useful facts from the content while rejecting instructions that attempt to redirect the workflow beyond its authorized scope.
Test the distinction
Give a controlled agent fixture both a relevant read operation and an unrelated write operation. Check that it completes the task without adding the write. Then provide explicit authorization for a bounded write and verify that it can proceed appropriately.
I'm Shashank Agarwal, creator of API.market and founder and CEO of Noveum AI. Use API.market setup, the pricing contract guide and acceptance-criteria guidance to make these boundaries inspectable.
Follow my work on LinkedIn. Drafted with AI assistance.
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