Skill community
Risk level
high
65/100

Using Git Worktrees

Using Git Worktrees is a community-maintained skill from obra/superpowers. Anomity scores its risk at 65 out of 100 (high). It matches 1 dangerous capability combination.

filesystem:read filesystem:write shell:execute

Analysis summary

Using Git Worktrees is a community-maintained skill from obra/superpowers. Anomity scores its risk at 65 out of 100 (high). It matches 1 dangerous capability combination.

Using Git Worktrees is a workspace-management skill from the Superpowers plugin that creates isolated git worktrees for feature work, keeping each branch in its own directory rather than constantly stashing and switching in a single checkout. It is intended for any task that needs isolation from the current workspace state — running a long-form refactor while continuing to ship hotfixes from main, executing an implementation plan in parallel with other work, or letting the agent operate without disturbing the user's local edits.

Functionally, the skill reads the current repository state to determine where to base the new worktree, writes a new worktree directory plus tracking metadata, and shells out to git through the Claude Code Bash tool to create, list, and clean up worktrees. It does not request network or credential access.

The skill is community trust and uses three declared capabilities — filesystem read, filesystem write, and shell execute. Shell execution is the one that lights up the larger risk signal, but because the shell calls are scoped to git operations and the skill is part of a well-known plugin, the practical risk is contained. It does match one half of the data-exfiltration dangerous combination on its own; the combination only activates when the running agent also has outbound network access.

Why this entry scored 65 out of 100

This profile starts at the catalog's neutral base of 50. Because the entry is community-maintained, trust adjusts the score by -10. Declared high-risk capabilities add +20 (capped at +30). It matches 1 dangerous capability combination, which contributes additional severity weight. The clamped result is 65, placing it in the high band.

See the full scoring formula →

Findings

  • Established community project Trust offset
    Contribution to score: -10
  • 2 high-risk capabilities: filesystem:write, shell:execute Critical
    Contribution to score: +20
  • Persistence + execution risk (medium) Medium
    Evidence
    Shell execution plus filesystem write means the agent can plant persistent backdoors (e.g. modifying startup scripts).
    Contribution to score: +5

Capabilities

Every capability the entry declares, with the security implication of each.

  • filesystem:read Filesystem read
    Can read files on the host system. Used for context, indexing, or analysis.
  • filesystem:write Filesystem write
    Can create, edit, or delete files on the host system. High-impact capability — anything from helpful edits to planting persistence.
  • shell:execute Shell execution
    Can run arbitrary shell commands. Combined with network access this becomes effectively a remote shell.

Dangerous combinations matched

Capability pairings that compound into well-known attack patterns.

  • Persistence + execution risk medium
    Shell execution plus filesystem write means the agent can plant persistent backdoors (e.g. modifying startup scripts).
    shell:execute filesystem:write