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Security audit

Water Tracker

Security checks for vulnerabilities and agentic risk

Overview

This water-tracking skill is coherent and local-only, but it can persist hydration, routine, and health-related context in local files.

Install only if you are comfortable with a local hydration journal that may include weight, routine, exercise, and health-condition context. Review or delete ~/Clawic/data/water/ if you do not want that history retained, and do not rely on the skill as a substitute for medical care when symptoms are serious or you have fluid restrictions.

Vulnerability Patterns
  • Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
  • Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
  • Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
  • Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
  • Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs
Vulnerability Patterns
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (5)

Missing User Warnings

High
Category
Not specified by scanner
Confidence
98% confidence
Finding

The skill directs the agent to persist newly revealed personal, health, activity, and clinician-related information into config and memory files automatically, with no explicit warning or opt-in. This is particularly sensitive because the stored data includes health conditions and inferred routines, making unauthorized retention more privacy-invasive than ordinary preference storage.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
92% confidence
Finding

The activation scope is broad enough to trigger on routine, ambiguous mentions of drinking or mild symptoms that commonly appear in unrelated conversations. In an agentic system, this can cause the skill to engage unnecessarily, create unsolicited health guidance or persistent logging, and crowd out more appropriate skills, increasing the chance of unsafe or privacy-impacting misfires.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
94% confidence
Finding

The 'When To Use' section includes a default trigger for nearly any hydration-related mention, which makes accidental activation likely. Because this skill stores health-related context and may provide hydration advice, over-triggering raises the risk of incorrect advice in the wrong context and unnecessary collection of sensitive behavioral data.

Content

No source excerpt is available for this finding.

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
75% confidence
Finding

Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Content

Scanner excerpt · memory-template.md (reported line 58)May include surrounding context.

text

- Keys, types, and defaults: the Configuration table in SKILL.md. An absent key means the default.
- config = what the user declared; memory = what the agent observed. An observation never overwrites a declared preference without confirmation.

## Status Values

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
96% confidence
Finding

The skill explicitly instructs the agent to read from and create persistent files in a user directory without any user-facing disclosure or consent step. Because these files hold behavioral and health-related context, silent access and persistence can violate user expectations and expose sensitive personal data if the environment, logs, or downstream agents are compromised.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.