ai agent guardrail software
Recent window: last 5.4 months (2026-05-01 → 2026-10-11), compared with the prior 5.4 months.
AI agent guardrail software monitors, restricts, and steers autonomous agent behavior at runtime through tool-call permission gates, loop prevention, and budget controls. Software engineers, platform teams, and enterprise security leads use these tools to safely run autonomous coding and workflow agents without risk of destructive actions. Unlike standard LLM firewalls that focus on text prompt moderation, these platforms specifically govern operational permissions, external tool execution, and agentic workflows.
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Pulled from real Hacker News comment threads on this niche's launches.
Members
| Name | Source | Upvotes ▼ | Launched |
|---|---|---|---|
| DeadBolt | PH | 1 | 2026-10-12 |
| Busbar v1.6.0 | PH | 1 | 2026-09-30 |
| NullRun | PH | 1 | 2026-09-16 |
| TokenControlPlane | PH | 1 | 2026-09-15 |
| AgentGate Labs | PH | 1 | 2026-10-13 |
| Prove Before Act | PH | 1 | 2026-10-06 |
| Agent Control | PH | 1 | 2026-09-13 |
| DotSpend | PH | 1 | 2026-10-02 |
| Isonapse | PH | 1 | 2026-09-10 |
| Vigilator | PH | 1 | 2026-09-14 |
| Aethra Runtime defence | PH | 1 | 2026-09-12 |
| Paveo | PH | 1 | 2026-10-11 |
| Guard Starter | PH | 1 | 2026-09-25 |