web-reader-pro

• Outcome: Pass
• Latest audit: May 28, 2026 · 1:13 PM UTC
• Version: 1.0.0

Overview

This appears to be a legitimate web-reading skill, with important but expected risks around third-party URL fetching, local caching, and optional helper-tool installation.

Install only if you are comfortable with requested URLs being fetched through Jina when Tier 1 is used, extracted content being cached locally, and the optional Scrapling setup installing or invoking npm/npx tooling. Avoid sensitive internal URLs unless you configure a local-only tier, use a limited Jina key, and clear cache or learning data after sensitive use.

SkillSpector

Vulnerability Patterns

• Data Exfiltration: External Transmission, Env Variable Harvesting, File System Enumeration
• Excessive Agency: Unrestricted Tool Access, Autonomous Decision Making, Scope Creep
• Behavioral AST: exec() Call, eval() Call, Dynamic Import
• MCP Least Privilege: Underdeclared Capability, Wildcard Permission, Missing Permission Declaration
• Prompt Injection: Instruction Override, Hidden Instructions, Exfiltration Commands

Findings (7)

subprocess module call

Medium

• Category: Dangerous Code Execution

Content

]
        
        try:
            result = subprocess.run(
                scrapling_cmd,
                capture_output=True,
                text=True,

• Confidence: 91% confidence
• Finding: The code executes an external `scrapling` binary via `subprocess.run` using a user-controlled URL as input. Although it avoids `shell=True`, invoking an external program expands the trust boundary: a compromised or unexpected binary, or a downstream tool that interprets the URL unsafely, can lead to arbitrary code execution or unsafe network access from the agent environment.

Lp3

Medium

• Category: MCP Least Privilege
• Confidence: 92% confidence
• Finding: The skill advertises and relies on capabilities including network access, environment-variable access, file read/write, and shell execution, but does not declare permissions or warn users about this operational scope. That creates a transparency and consent problem: a user may invoke what appears to be a simple web reader without realizing it can access local state, persist data, and execute external tooling.

Context-Inappropriate Capability

Medium

• Confidence: 88% confidence
• Finding: The skill's advertised role is web reading, but it achieves part of that by executing an external local binary. In an agent setting, that is materially more dangerous than pure HTTP fetching because it introduces supply-chain, path-hijack, and local-execution risk that may not be visible to users or policy controls.

Missing User Warnings

Medium

• Confidence: 95% confidence
• Finding: The skill description says it fetches and extracts web content using Jina as a primary tier, but does not warn that requested URLs and potentially associated request metadata may be transmitted to a third-party service. This omission can cause privacy, confidentiality, and compliance issues if users submit internal, sensitive, or non-public URLs assuming all processing is local.

Missing User Warnings

Medium

• Confidence: 94% confidence
• Finding: Listing an external-service API key in the environment variables without a matching warning obscures the fact that content extraction may depend on a remote provider and that user-supplied URLs may leave the local environment. This increases the risk of accidental data disclosure and misuse in environments with strict privacy or data residency requirements.

Missing User Warnings

Medium

• Confidence: 90% confidence
• Finding: The script performs package installation from the network and creates an executable wrapper in ~/.local/bin, changing the user's environment and persistence state. While this appears to be a legitimate installer, these actions can introduce unreviewed code into the system and leave behind a command that will execute npx-fetched code later, especially risky because the package version is not pinned and user consent is implicit rather than explicit.

Missing User Warnings

Medium

• Confidence: 92% confidence
• Finding: The Jina tier transmits user-supplied URLs to an external third-party service (`r.jina.ai`) without any runtime consent or clear user-facing disclosure. In a web-reading skill, this is contextually significant because requested URLs may be sensitive, internal, or private, and using a third-party reader changes the data exposure model.

Static analysis

No suspicious patterns detected.