← Back to LearnComparisons

ACSM vs SAST: What's the Difference?

Understand the differences between Agentic Coding Security Management (ACSM) and Static Application Security Testing (SAST), and when to use each approach.

ACSM vs SASTcode securitystatic analysisAI security

Agentic Coding Security Management (ACSM) and Static Code Analysis (SAST) represent two different philosophies about when and how to address code security.

The Fundamental Difference

SAST (Static Application Security Testing) scans code after it's written. You write code, commit it, and the tool analyzes it for vulnerabilities. When it finds something, you get a report and have to go back to fix it.

ACSM (Agentic Coding Security Management) operates during the code generation process. When a coding agent is writing code, ACSM provides security context and guardrails in real-time. This helps to prevent vulnerabilities from being created rather than finding them after the fact.

Different Problems, Different Solutions

SAST was built for a world where humans write all the code at a relatively steady pace. The scan-report-fix cycle relies on the premises that there is adequate time to investigate security findings, and that developers can remember what they were thinking when they wrote the code.

AI coding agents have changed this equation. Code generation happens much faster, and traditional review processes are bottlenecked. A developer might generate multiple features in an afternoon, each one potentially with its own security issues. In the modern day. the SAST backlog grows faster than it can be triaged.

ACSM addresses this by shifting security into the generation process itself. Instead of generating code and finding problems after the fact, the AI agent receives security guidance while it's working. Vulnerabilities are prevented rather than detected.

When Each Makes Sense

SAST remains valuable for:

  • Comprehensive scans of existing codebases
  • Human-written code where generation-time guardrails don't apply
  • Compliance requirements that mandate specific scanning processes.

ACSM is essential when teams are using AI coding agents extensively and need security that keeps pace with generation speed.

Using Both Together

The two approaches complement each other. Corridor provides ACSM for prevention during code generation, catching issues in real-time. Traditional SAST tools provide verification in CI/CD, ensuring nothing slips through and covering human-written code.

Learn More

Secure Your AI Coding Workflow

Ready to implement ACSM in your organization? Corridor provides real-time security guardrails for AI coding agents.