{{Skill}} Skill Security Model

{{One-paragraph intro: name the runtime files, the trust-bucket decomposition, and state "Each bucket enumerates all six STRIDE categories with the in-code mitigations that address them."}}

See also: repo-wide STRIDE model. This skill participates in the repository-wide threat model recorded in docs/security/security-model.md and is registered in its Skill Security Models section. In the copied SECURITY.md, link to the repo model with a relative path such as ../../../../docs/security/security-model.md.

Executive Summary

{{2-4 sentences: what the skill does, its highest-risk behavior, and the overall residual-risk posture.}}

Security Posture Overview

Dimension	Value
Runtime surface	{{e.g., REST CLI; environment credentials; subprocess}}
Trust buckets	{{count and one-line list, e.g., B1 CLI→API, B2 credentials, B3 caller}}
Credentials	{{what secrets are handled and how}}
Network egress	{{endpoints reached, transport}}
Open residual gaps	{{count}} ({{highest severity}})

Contents

• System Description
• Trust Boundaries
• Assets
• Adversaries
• Bucket B1: {{name}}
• Enterprise Readiness Gaps
• References

System Description

Components

1. {{runtime file}} — {{role}}
2. {{runtime file}} — {{role}}

Data Flow

flowchart TD
    subgraph HOST["Operator Workstation / Runner (trust zone)"]
        CLI["{{skill}} CLI"]
        Credentials["Credentials<br/>(env / token store)"]
        OUT["Output files"]
    end
    subgraph EXT["External Service / Tool (network boundary)"]
        API["{{external API or tool}}"]
    end
    CLI -->|"reads"| Credentials
    CLI -->|"request (HTTPS/TLS)"| API
    API -->|"response (untrusted)"| CLI
    CLI -->|"writes"| OUT

Trust Boundaries

Boundary Diagram

┌───────────────────────────────────────────────────────────┐
│ TRUST BOUNDARY: Operator Workstation / Runner             │
│  ┌─────────────┐   ┌──────────────┐   ┌────────────────┐  │
│  │ {{skill}}   │   │ Credentials  │   │ Output files   │  │
│  │ CLI         │   │ (env/store)  │   │                │  │
│  └─────────────┘   └──────────────┘   └────────────────┘  │
└───────────────────────────┬───────────────────────────────┘
                            │ TLS
        ┌────────────────────▼────────────────────┐
        │ TRUST BOUNDARY: External Service / Tool  │
        │  ┌────────────────────────────────────┐  │
        │  │ {{external API or tool}}           │  │
        │  └────────────────────────────────────┘  │
        └──────────────────────────────────────────┘

Boundary Descriptions

Boundary	Assets Protected	Controls Enforced
{{Workstation/Runner}}	{{credentials, outputs}}	{{env handling, file perms}}
{{External Service}}	{{request/response integrity}}	{{TLS, no-redirect opener, response caps}}

Assets

Id	Asset	Lifetime	Notes
A1	{{asset}}	{{lifetime}}	{{notes}}

Adversaries

Id	Adversary	In-scope mitigations
ADV-a	{{adversary}}	{{mitigations}}

Bucket B1: {{name}}

Spoofing

• {{mitigation}}

Tampering

• {{mitigation}}

Repudiation

• {{mitigation, or "Not applicable. ."}}

Information Disclosure

• {{mitigation}}

Denial of Service

• {{mitigation}}

Elevation of Privilege

• {{mitigation}}

Risk Rating

Threat	Likelihood	Impact	Residual Risk	Status
{{threat}}	{{Low/Med/High}}	{{Low/Med/High}}	{{Low/Med/High}}	{{Mitigated / Partially Mitigated / Accepted}}

Enterprise Readiness Gaps

The following are known limitations recorded so operators can make informed deployment decisions. Severity ratings are the project's own assessment and are not equivalent to a CVSS score.

Id	Gap	Severity	Status
G-{{CAT}}-1	{{gap}}	{{Category-Level, e.g., InfoDisc-Med}}	{{disposition}}

For an active issue tracker entry covering these gaps, see the hve-core issues list.

References

• STRIDE Threat Model
• {{relevant OWASP list, e.g., OWASP Top 10 / LLM Top 10}}
• {{the skill's external API/tool security docs}}
• Repository security model — docs/security/security-model.md

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