AI markdown: `Bash(chown:*)` tool grant

AI-native markdown frontmatter grants `Bash(chown:*)` authority

Activation Model

Preset Membership

This rule is part of the builtin activation graph through these preset memberships.

previewmembership

skillsmembership

Lifecycle

State

stable_gated

Graduation rationale

Checks AI-native frontmatter for explicit wildcard chown grants in shared allowed-tools policy.

Deterministic signal basis

MarkdownSignals exact frontmatter token detection for `Bash(chown:*)` inside allowed-tools or allowed_tools.

Malicious corpus

skill-chown-allowed-tools

Benign corpus

skill-chown-allowed-tools-specific-safe

structured evidence required remediation reviewed

Canonical note

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

Nearby Signals

SEC352AI markdown: unscoped Bash tool grantAI-native markdown frontmatter grants unscoped Bash tool accessmarkdownstable

SEC417AI markdown: unpinned pip git installAI-native markdown installs Python packages from an unpinned `git+https://` sourcemarkdownstable

SEC428AI markdown: unsafe Read path grantAI-native markdown frontmatter grants `Read(...)` over an unsafe repo-external pathmarkdownstable

SEC429AI markdown: unsafe Write path grantAI-native markdown frontmatter grants `Write(...)` over an unsafe repo-external pathmarkdownstable

SEC430AI markdown: unsafe Edit path grantAI-native markdown frontmatter grants `Edit(...)` over an unsafe repo-external pathmarkdownstable

SEC431AI markdown: unsafe Glob path grantAI-native markdown frontmatter grants `Glob(...)` over an unsafe repo-external pathmarkdownstable

SEC468 / MD-CHOWN-ALLOWED-TOOLS flags AI-native markdown frontmatter that grants blanket chown authority through allowed-tools.

Why this matters:

Bash(chown:*) gives broad ownership-changing authority as a default shared capability
the grant is wider than a reviewed ownership-update workflow
shared instructions should prefer a narrow scoped command instead of open-ended ownership changes

Triggers:

yaml

allowed-tools: Bash(chown:*)

Does not trigger:

yaml

allowed-tools: Bash(chown root:staff ./bin/tool)

Remediation:

replace Bash(chown:*) with a narrower reviewed ownership-change command or remove the grant entirely