AI Agents will rapidly become ubiquitous in every industry. Unfortunately, they open users to a plethora of new vulnerabilities. Locking them down across containers, pods, or VMs normally demands deep kernel level skills and endless tuning. Capsule's Agent Security Runtime slips underneath the agent, watches each system call as it happens, and stops anything that gets flagged as malicious. Capsule generates tailored security profiles that adapt to agent tooling updates, gives observability into raw syscall traces for deep troubleshooting, and writes an untamperable, hash-chained log that makes auditing simple.