HOL Guard
Overview
Product details compiled from public sources, each with a citation.
- Vendor
- Hashgraph Online2agent
- Description
- Open-source, local-first control for AI coding agents that reviews shell commands, secret access, package installs, and MCP tool calls before they run, and blocks or asks per policy.1agent
- Deployment
- Self-hosted, SaaS3agent
- Status
- Active1agent
Matrix Coverage
Where this product defends, by asset class and NIST CSF function. The Coverage column shows whether each asset is Primary, Secondary, or Adjacent to what the product does. The table omits empty rows and columns.
| Asset class | Identify | Protect | Detect | Coverage | Source |
|---|---|---|---|---|---|
| AI Coding and Orchestration Tools | Primary | 1 | |||
| AI Traffic | Identify: Not covered | Detect: Not covered | Secondary | 1 | |
| Runtime AI Data | Identify: Not covered | Secondary | 1 |
Framework Relevance
These frameworks include controls relevant to the asset classes HOL Guard defends. This is an editorial inference from the AI Defense Matrix asset-level crossmap, not a statement that Hashgraph Online implements these controls or is certified against them.
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| Framework | Asset class | Relevant controls |
|---|---|---|
| NIST IR 8596 | AI Coding and Orchestration Tools | Agents as deployed artifacts (orchestration view; see AI Agent Identities row for the principal view); system prompts and templates |
| AI Traffic | AI data flows; APIs; inference endpoints (traffic side); model registries and dataset sources | |
| Runtime AI Data | Prompts (runtime); inference data | |
| CSA AI Controls Matrix | AI Coding and Orchestration Tools | Application and Interface Security; Supply Chain Management |
| AI Traffic | Infrastructure Security; Interoperability and Portability | |
| Runtime AI Data | Data Security and Privacy Lifecycle Management; Application and Interface Security | |
| ISO 42001 | AI Coding and Orchestration Tools | A.6 AI system life cycle; A.5 Assessing impacts of AI systems |
| AI Traffic | A.8 Information for interested parties; A.9 Use of AI systems; A.10 Third-party and customer relationships | |
| Runtime AI Data | A.7 Data for AI systems; A.8 Information for interested parties | |
| Google SAIF | AI Coding and Orchestration Tools | Secure the AI supply chain; application and pipeline security; agent orchestration controls |
| AI Traffic | Harden and monitor infrastructure; network-level access and egress controls | |
| Runtime AI Data | Expand AI red-teaming; runtime input and output safety; prompt defense | |
| SANS Critical AI Security Guidelines | AI Coding and Orchestration Tools | Secure Agentic Systems and AI Autonomy Controls (defined function scope; execution isolation; API and function-call gating); Limit Model Behavior (focused functionality; access controls outside the model) |
| AI Traffic | Conventional Security Controls (authenticate and control access to inference APIs; API key management); Model I/O Handling (rate limiting; egress output filtering); Monitoring (interaction and API-usage logging) | |
| Runtime AI Data | Model I/O Handling (sanitize, validate, and filter inputs and outputs; segregate user and system prompts; multilayered prompt-injection defense); Conventional Security Controls (protect augmentation and RAG data with vector-store access controls and validation); Data Minimization and Obfuscation (limit sensitive prompt content; context-window management); Limit Model Behavior (AI guardrails) | |
| MITRE ATLAS | AI Coding and Orchestration Tools | AML.T0051 LLM Prompt Injection; AML.T0054 LLM Jailbreak; AML.T0016 Obtain Capabilities (malicious plugins) |
| AI Traffic | AML.T0057 LLM Data Leakage; AML.T0024 Exfiltration via AI Inference API (network-side observation) | |
| Runtime AI Data | AML.T0051 LLM Prompt Injection; AML.T0054 LLM Jailbreak; AML.T0056 Extract LLM System Prompt (system prompt leaks as inference data; the AI Coding and Orchestration Tools row owns it as configuration) | |
| OWASP AI Exchange | AI Coding and Orchestration Tools | Development-time threats: agent framework supply chain; runtime threats: plugin abuse, prompt injection via tools |
| AI Traffic | Runtime threats: data leakage via AI egress; network-level access control gaps | |
| Runtime AI Data | Input threats: prompt injection, adversarial inputs, evasion; runtime threats: RAG poisoning, memory tampering | |
| OWASP LLM Top 10 | AI Coding and Orchestration Tools | LLM01 Prompt Injection; LLM05 Improper Output Handling; LLM07 System Prompt Leakage; LLM10 Unbounded Consumption |
| AI Traffic | LLM10 Unbounded Consumption (cost and rate control); shadow AI egress and output handling | |
| Runtime AI Data | LLM01 Prompt Injection; LLM02 Sensitive Information Disclosure; LLM08 Vector and Embedding Weaknesses; LLM05 Improper Output Handling | |
| OWASP Agentic Security Top 10 | AI Coding and Orchestration Tools | ASI01 Agent Goal Hijack; ASI02 Tool Misuse and Exploitation; ASI05 Unexpected Code Execution (RCE); ASI07 Insecure Inter-Agent Communication; ASI08 Cascading Failures; ASI10 Rogue Agents |
| AI Traffic | ASI07 Insecure Inter-Agent Communication; ASI02 Tool Misuse and Exploitation (egress and tool-invocation scope); ASI04 Agentic Supply Chain Vulnerabilities (MCP and tool-registry trust) | |
| Runtime AI Data | ASI06 Memory & Context Poisoning; ASI01 Agent Goal Hijack (via prompt injection in runtime inputs) |
Provenance
Last sourced 2026-10-31.
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Sources
- HOL Guard GitHub repository
- “HOL Guard reviews agent actions before they run: shell commands, file access, package installs, and MCP tool calls.”
- “Screens supported events for prompt injection and sensitive content.”
- “Inspects server configuration and reviews tool calls through supported hooks and managed proxies.”
- HOL homepage
- HOL Guard product page
Changelog
-
Added to the catalog from the HOL Guard repository and the HOL website.
Found an error? Corrections are welcome. Suggest an edit.