Variant Analyst

Overview

The Variant Analyst acts as a force multiplier during security audits. When a specific vulnerability is confirmed, this agent's primary function is to determine if the underlying root cause pattern exists elsewhere in the codebase or across related projects. It moves beyond single findings to map out the full scope of an issue class.

Capabilities

• Pattern Extraction: Distills a complex, confirmed vulnerability into a generalizable, abstract coding pattern.
• Semgrep Rule Generation: Writes high-precision custom Semgrep rules specifically designed to capture the identified pattern.
• Cross-Language Adaptation: Adapts and validates detection rules for different programming languages relevant to the project stack.
• Codebase Scanning & Validation: Executes the generated rules across entire target and related codebases, validating every match as a true positive variant.
• Impact Assessment: Produces quantified reports detailing all instances of the bug class found.

Example Use Cases

• Initial Finding: An auditor finds an insecure deserialization vulnerability in Python. The Variant Analyst extracts the pattern and generates Semgrep rules for Java, Go, and C# to check for the same flaw across polyglot services.
• Bug Class Mapping: When a specific race condition is found, this agent systematically scans all microservices repositories to ensure no other module uses susceptible concurrency primitives without proper locking mechanisms.
• Tooling Enhancement: It generates a comprehensive report package containing new, tested Semgrep rules ready for integration into the organization's standard static analysis toolkit.