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Security audit

reddit-data

Security checks for vulnerabilities and agentic risk

Overview

The skill is mostly a disclosed Reddit data API integration, but it also points agents toward enabling broader Superagnt platform tool families beyond the Reddit purpose.

Install only if you are comfortable sending Reddit research targets and your Superagnt credential to Superagnt's hosted service. Treat the Reddit endpoints as purpose-aligned, but review or avoid the broader MCP platform/tool-enablement guidance unless you explicitly want those extra Superagnt capabilities.

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
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (7)

Missing User Warnings

Medium
Confidence
88% confidence
Finding
The skill sends user-supplied queries, usernames, post URLs, and subreddit identifiers to an external third-party API, but it does not warn about privacy implications or data handling. Users may unknowingly transmit sensitive research targets, internal investigation terms, or personal data to the service.

External Transmission

Medium
Category
Data Exfiltration
Content
One call proves the key, the credit balance, and this source end to end:

```bash
curl -s https://api.superagnt.com/v1/credits \
  -H 'Authorization: Bearer $SUPERAGNT_API_KEY'
```
Confidence
50% confidence
Finding
Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

External Transmission

Medium
Category
Data Exfiltration
Content
One call proves the key, the credit balance, and this source end to end:

```bash
curl -s https://api.superagnt.com/v1/credits \
  -H 'Authorization: Bearer $SUPERAGNT_API_KEY'
```
Confidence
50% confidence
Finding
Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

External Transmission

Medium
Category
Data Exfiltration
Content
One call proves the key, the credit balance, and this source end to end:

```bash
curl -s https://api.superagnt.com/v1/credits \
  -H 'Authorization: Bearer $SUPERAGNT_API_KEY'
```
Confidence
50% confidence
Finding
Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Description-Behavior Mismatch

Medium
Confidence
90% confidence
Finding
The skill is presented as a narrowly scoped Reddit-data integration, but it also promotes broader platform capabilities such as workspace database, files, webhooks, queues, and enrichment. This scope expansion can mislead agents or operators into granting access to unrelated capabilities, increasing privilege and data exposure beyond the stated purpose.

Context-Inappropriate Capability

Medium
Confidence
93% confidence
Finding
The document explicitly encourages users to discover and enable unrelated MCP tool families via agnt_tools_search and agnt_tools_enable, which exceeds the Reddit-data purpose of the skill. In an agent setting, this can facilitate capability creep and unintentionally broaden the tool surface available to the model.

External Transmission

Medium
Category
Data Exfiltration
Content
is never charged without a human confirming in the dashboard.

```bash
curl https://api.superagnt.com/v1/platforms
```

## Links
Confidence
86% confidence
Finding
This external call is part of the broader platform upsell section rather than the Reddit-data function of the skill. In context, it nudges users or agents toward enumerating additional platform capabilities unrelated to the declared scope, which can increase available attack surface and encourage overbroad enablement.

Static analysis

No suspicious patterns detected.