Runtime security topic hub

AI agent runtime security articles for live action checks and audit evidence

Use this hub for the live-control layer: what to check before a tool executes, what to inspect after a tool returns, how policy becomes runtime enforcement, and what audit evidence should remain.

· 9 articles · 3 guides

Search questions this hub answers

What is AI agent runtime security?

What are pre-tool call and post-tool response checks?

How do runtime controls prevent agent data exfiltration?

What audit evidence should an AI agent security layer keep?

11 min read

AI Security Posture Management (AI-SPM): What It Covers and Where Runtime Takes Over

AI security posture management explained: agent and tool inventory, credential mapping, configuration baselines, posture drift detection, and the runtime gap that posture scans cannot see.

AI Agent SecurityPosture ManagementRuntime Security
11 min read

Guardrails, Sandboxes, and Gateways: AI Runtime Security Compared

Three control families claim the "AI runtime security" label. What inline guardrails, OS sandboxes, and gateways each catch, what each is structurally blind to, and how to combine them.

Runtime SecurityAI Agent SecuritySecurity Tools
12 min read

Prompt Injection Detection: How Pattern Matching, Classifiers, and LLM Judges Compare

Prompt injection detection methods compared: deterministic pattern checks, ML classifiers, and LLM judges - the recall, false-positive, and cost trade each makes, and how to evaluate a detector honestly.

Prompt InjectionAI Agent SecurityRuntime Security
11 min read

Claude Code Security: A Practical Hardening Guide for Local Coding Agents

Six controls that harden Claude Code and other local coding agents: untrusted-input discipline, least privilege, config-write protection, credential scoping, egress limits, and audit evidence.

Claude Code SecurityAI Agent SecurityRuntime Security
12 min read

AI Agent Security Monitoring: Audit Logging, Runtime Telemetry, and Forensics

What an AI agent audit log should actually capture — prompts, tool calls, results, policy decisions — how to keep it tamper-evident, and how to reconstruct an incident from the evidence after something goes wrong.

AI Agent SecurityMonitoringAudit Logging
12 min read

AI Agent Data Exfiltration: Prompt Injection, Tools, and Runtime Defense

How agents leak data: an attacker plants instructions in content the agent reads, the agent retrieves something sensitive, then sends it out through a legitimate tool. What each defense layer can and cannot see along that path.

AI Agent SecurityData ExfiltrationPrompt Injection
10 min read

Agentic Ransomware: What JADEPUFFER Means for AI Agent Security

JADEPUFFER and clean-repo coding-agent exploits show why AI agent security needs runtime action checks, credential boundaries, egress controls, and audit evidence.

Agentic SecurityAI Agent SecurityRuntime Security
12 min read

AI Agent Runtime Security Checklist

A practical checklist for securing AI agents at runtime: inventory tools, scope credentials, inspect inputs, check tool dispatch, screen tool results, verify outputs, keep audit evidence, and roll back safely.

AI Agent SecurityRuntime SecurityChecklist
12 min read

MCP Tool Poisoning: Runtime Defense for AI Agents

MCP tool poisoning explained: poisoned tool descriptions, schemas, metadata, and results; where scanners help; and why runtime dispatch and result checks still matter.

MCP SecurityTool PoisoningRuntime Security

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