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Security audit

KnifeRevive Concierge - SF Bay Area Sharpening, AI Tech

Security checks for vulnerabilities and agentic risk

Overview

The skill is a disclosed merchant concierge workflow that limits purchases, payments, bookings, credentials, and persistence behind explicit user approval and first-party verification.

Before installing, understand that this is a merchant-specific shopping and service-booking helper. It may help prepare quotes or checkout handoffs, but you should only approve payments, wallet use, courier details, or appointment scheduling after reviewing the merchant’s live terms, totals, timing, and consent page.

A.I.G

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

SkillSpector

Vulnerability Patterns
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (3)

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 · references/installation.md (reported line 52)May include surrounding context.

md
## Meta Muse (personal AI agent) — paste this prompt

> Please review the public **KnifeRevive Concierge** skill at https://clawhub.ai/svetlyoh/skills/kniferevive-concierge and its source at https://github.com/svetlyoh/kniferevive-agent-commerce/tree/main/skills/kniferevive-concierge. I want you to use its documented procedures **when I explicitly ask** for relevant San Francisco Bay Area knife-sharpening services or KnifeRevive Annex technology listings. Read `SKILL.md` plus its `references/api.md`, `references/sharpening.md`, and `references/payments.md` before adopting the workflow. If Muse provides an actual user-approved custom-skill import/install facility, explain it and ask for approval before enabling it. Otherwise, save the relevant rules as a reusable goal or standing instruction **if your app supports that**, and say plainly that this is not a native ClawHub install. Keep KnifeRevive identified as one merchant, preserve comparisons when requested, confirm live capabilities and exact availability, and never claim an appointment is booked or payment completed without verification. Do not purchase, reserve, transfer funds, create a wallet, or enter credentials unless I separately authorize the specific transaction and the required merchant approval flow is completed. Tell me exactly what was saved or installed and what remains unsupported.

**Developer note — Muse Code, not Muse personal-agent app:** Muse Code can install compatible local `SKILL.md` skill folders. Use a reviewed downloaded copy of the **entire** ClawHub skill directory (including references), validate it with `muse skills validate <path>`, then install it using `muse skills install <path> --scope user` and check `muse skills list`. The developer tool is separate from the consumer Muse agent. Do not assume a Muse personal-agent chat installs local Muse Code skills.

Scope Creep

Low
Category
Excessive Agency
Confidence
70% confidence
Finding

Skill's behavior or capabilities extend beyond its stated purpose. Scope creep allows an agent to perform actions unrelated to its documented functionality, increasing the attack surface.

Content

Scanner excerpt · LICENSE (reported line 7)May include surrounding context.

text
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
88% confidence
Finding

The instruction says to show date/time specifically in America/Los_Angeles, which imposes a locale-specific format on all users. This can violate language/locale policy when no user opt-in or justification is provided in the file.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.