WebMCP tool community agent-skill
Risk level
critical
100/100

webmcpify ↗

webmcpify is a community-maintained WebMCP tool from TueJon. Anomity scores its risk at 100 out of 100 (critical). It matches 3 dangerous capability combinations.

filesystem:read filesystem:write shell:execute network:outbound

Analysis summary

webmcpify is a community-maintained WebMCP tool from TueJon. Anomity scores its risk at 100 out of 100 (critical). It matches 3 dangerous capability combinations.

webmcpify is an agent skill that takes an existing web application, inventories what it does, proposes a WebMCP tool surface for it, then implements and verifies those tools. It is a code-generation workflow rather than a runtime component: you point an agent at your app and it writes the registrations.

The capability profile follows from that. It reads and writes files in the repository it is applied to, runs commands to verify its work, and reaches the network for model calls — the combination Anomity flags as a full-control pattern, which is normal for any coding agent skill and is why it belongs behind review rather than autopilot. The output deserves a second look too: an agent deciding which of your app's operations should become agent-callable is a security design decision being made by a model.

Why this entry scored 100 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 3 dangerous capability combinations, which contribute additional severity weight. The clamped result is 100, placing it in the critical 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
  • Data exfiltration risk (high) High
    Evidence
    Shell execution combined with outbound network access can exfiltrate arbitrary data from the machine.
    Contribution to score: +15
  • 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
  • Full-control risk (critical) Critical
    Evidence
    Shell + filesystem write + network is effectively a remote shell on the employee machine.
    Contribution to score: +25

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.
  • network:outbound Outbound network
    Can make outbound network requests. Required for hosted model providers and remote APIs; also the path for data exfiltration if combined with read access.

Dangerous combinations matched

Capability pairings that compound into well-known attack patterns.

  • Data exfiltration risk high
    Shell execution combined with outbound network access can exfiltrate arbitrary data from the machine.
    shell:execute network:outbound
  • 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
  • Full-control risk critical
    Shell + filesystem write + network is effectively a remote shell on the employee machine.
    shell:execute filesystem:write network:outbound