From SDLC to ADLC: why application security needs coding agent governance

As coding agents become embedded in software development, the passage argues that organizations need a clearly accountable owner for governing their actions, rather than leaving responsibility divided among AI governance, platform, security operations, and application security teams. It contends that application security should own policy and auditability for agent behavior because its remit has historically expanded from code scanning to dependency, pipeline, and software-factory security. The proposed agentic development lifecycle introduces autonomous agent sessions that can plan, access credentials, install packages, execute code, and make external connections, creating risks that may only be visible across a sequence of actions rather than in individual artifacts. Because agent behavior is non-deterministic, the passage advocates deterministic, policy-as-code controls such as lifecycle hooks that allow, block, or escalate consequential actions. Platform teams would continue operating agent infrastructure, SOC teams would retain broad detection responsibilities, and governance committees would define organizational intent, while AppSec would define, verify, and document controls through agent inventories, action-level policies, and records of agent activity.

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