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Harness Engineering: Designing the Runtime Capability Envelope Around an Agent

This story is from 2026-09-06. It is preserved in the archive; the latest stories are on the live feed.

"Please be careful" is not a security control An agent at a Fortune 500 financial services company had exactly three tools: a document reader, an employee directory lookup, and a payment processor wired into the ERP. A security researcher uploaded a fake invoice during pre-production testing. Corre…

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  1. 2026-09-06 15:10 · DEV Community — AI
    Harness Engineering: Designing the Runtime Capability Envelope Around an Agent

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