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Rule Reference

SEC507lintai-ai-securitygovernancehardeningstablemarkdownwarn

AI markdown: shared gh repo create tool grant

AI-native markdown frontmatter grants `Bash(gh repo create:*)` tool access

Public lane
governance
Category
hardening
Provider
lintai-ai-security
Scope
per-file
Surface
markdown
Tier
stable
Severity
warn
Confidence
high
Detection
structural
Remediation
message only
How to read this lane

Shared authority and workflow policy review.

How to read this category

Least-privilege, provenance, or operational hygiene signal.

Activation Model

Preset Activation

These presets explain where this rule appears in the product experience.

governancesidecar lane

Lifecycle

Stable Lifecycle Contract

State

stable

Graduation rationale

Checks AI-native markdown frontmatter for exact GitHub repository creation authority through `allowed-tools`.

Deterministic signal basis

MarkdownSignals exact frontmatter string detection for `Bash(gh repo create:*)` in allowed-tools entries.

Malicious corpus
skill-gh-mutation-allowed-tools
Benign corpus
skill-gh-mutation-specific-safe
structured evidence required remediation reviewed
Canonical note

Structural stable rule intended as a high-precision check with deterministic evidence.

Nearby Signals

Related Rules

SEC352AI markdown: unscoped Bash tool grantAI-native markdown frontmatter grants unscoped Bash tool accessgovernancehardeningmarkdown
SEC423AI markdown: bare Read tool grantAI-native markdown frontmatter grants bare `Read` tool accessgovernancehardeningmarkdown
SEC424AI markdown: bare Write tool grantAI-native markdown frontmatter grants bare `Write` tool accessgovernancehardeningmarkdown
SEC425AI markdown: bare Edit tool grantAI-native markdown frontmatter grants bare `Edit` tool accessgovernancehardeningmarkdown
SEC426AI markdown: bare Glob tool grantAI-native markdown frontmatter grants bare `Glob` tool accessgovernancehardeningmarkdown
SEC427AI markdown: bare Grep tool grantAI-native markdown frontmatter grants bare `Grep` tool accessgovernancehardeningmarkdown

SEC507 / MD-GH-REPO-CREATE-ALLOWED-TOOLS ​

SEC507 flags AI-native markdown frontmatter when allowed-tools grants the exact token Bash(gh repo create:*).

Why It Matters ​

gh repo create provisions new remote repositories. Shared frontmatter should not quietly make repository creation a default capability for every agent that loads the file.

Trigger Shape ​

The rule triggers only when all of these are true:

  • the file is an AI-native markdown instruction surface
  • the path is not fixture-like
  • allowed-tools or allowed_tools contains the exact token Bash(gh repo create:*)

Clean Cases ​

These stay clean:

  • more specific read-only repo commands such as Bash(gh repo view:*)
  • frontmatter without Bash(gh repo create:*)
  • fixture-like examples under test or fixture paths

Example Trigger ​

yaml
allowed-tools:
  - Bash(gh repo create:*)
  - Read

Safer Example ​

yaml
allowed-tools:
  - Bash(gh repo view:*)
  - Read

How To Fix ​

Replace Bash(gh repo create:*) with a narrower reviewed command, or remove shared repository-creation authority from the frontmatter entirely.