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threat-model

MCP threat-model artifact for a scaffolded harness. Reports allowed/denied tools, dangerous permissions count, secrets reachability, network/shell/file-write grants, default-deny posture. Verdict: clean (exit 0) / medium (exit 1) / high (exit 2). The 'enterprise gold' artifact for PR + compliance review.

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查看安装方法

包含的文件(1)

  • SKILL.md2.5 KB

SKILL.md(原文)

安装前可以查看交给 AI 代理的指令内容。

threat-model

Codex skill: MCP threat-model artifact for PR / compliance review (iter 112 → iter 114). User-labelled "enterprise gold."

What it does

Renders the existing mcp-scan findings as a clean threat-model artifact in the shape a security / compliance reviewer wants to see attached to a PR:

MCP Threat Model

  Allowed tools:         3
  Denied tools:          14
  Dangerous permissions: 0
  Secrets reachable:     no
  Network access:        no
  Shell access:          no
  File write:            no
  Default-deny policy:   yes
  Audit log:             yes

Verdict: clean (exit 0)

Same underlying scan as mcp-scan, presented as a single-screen artifact.

VerdictExitTriggers
clean0no dangerous perms, no secret exposure
medium1network OR file-write granted, OR no audit log
high2shell granted OR default-deny OFF OR secrets reachable

The "secrets reachable" heuristic is conservative: true when MCP is in use AND deny rules don't guard .env* AND allow rules include any Read(...) grant.

Usage from Codex

/threat-model path=./my-harness
/threat-model path=./my-harness bundle=true

Equivalent CLI

harness threat-model ./my-harness                # text artifact
harness threat-model ./my-harness --json         # full envelope
harness threat-model ./my-harness --bundle       # ADR-031 schema-1
harness threat-model ./my-harness --out tm.json  # write to file

When to attach this to a PR

  • Adding a new MCP server / tool
  • Loosening a permission allow rule
  • Pulling in a new dependency that exposes shell/network capabilities
  • Any change to .harness/mcp-policy.json or .claude/settings.json permissions

The artifact is small enough to paste verbatim into the PR description.

Related skills

  • validate-harness (iter 22) — release-readiness umbrella (includes mcp-scan)
  • score-harness (iter 114) — broader 0-100 scorecard; MCP safety is one of its 5 dimensions
  • repo-genome (iter 114) — pre-scaffold readiness; MCP risk is one of its 7 sections

See also

  • ADR-022 — MCP primitive · ADR-030 — Discovery Loop · ADR-031 — Bundle Pattern

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中文简介正在准备中。当前显示原文说明。

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中文简介正在准备中。当前显示原文说明。

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中文简介正在准备中。当前显示原文说明。

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中文简介正在准备中。当前显示原文说明。

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中文简介正在准备中。当前显示原文说明。

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中文简介正在准备中。当前显示原文说明。

ruvnet/metaharness7132026年10月22日 更新

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