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Security audit

Generate artist-backed illustrations by Antekirt

Security checks for vulnerabilities and agentic risk

Overview

The skill does what it claims, but it needs review because it can send an API key and user prompts to a configurable network destination and may trigger on broad image requests.

Install only if you intend to use Antekirt and are comfortable sending prompts and generation metadata to its API. Set ANTEKIRT_BASE_URL exactly to https://api.antekirt.com, avoid running it in environments where that variable could be overridden, and watch for unintended activation from generic image-generation prompts because requests can consume credits.

A.I.G

Vulnerability Patterns
  • Insecure Skill Coding PracticesFinds exploitable flaws such as hardcoded secrets or command injection
  • 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
Findings (1)

T09 · Insecure Skill Coding Practices

Error
Location
scripts/antekirt.js:6
Finding

API Key Disclosure Through an Unrestricted Configurable API Origin

Content
View full analysis
Remediation
View remediation

SkillSpector

Vulnerability Patterns
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (14)

Ae1

High
Category
analysis-evasion
Confidence
100% confidence
Finding

Referenced artifact was not completely inspected

Content

Scanner excerpt · SKILL.md (reported line 33)May include surrounding context.

md
> **Note:** Node.js network access is required to run the `antekirt.js` script. In sandboxed environments where Node.js DNS resolution is unavailable, use the `

Ae1

High
Category
analysis-evasion
Confidence
100% confidence
Finding

Referenced artifact was not completely inspected

Content

Scanner excerpt · SKILL.md (reported line 39)May include surrounding context.

md
> **Note:** Node.js network access is required to run the `antekirt.js` script. In sandboxed environments where Node.js DNS resolution is unavailable, use the `

Ae1

High
Category
analysis-evasion
Confidence
100% confidence
Finding

Referenced artifact was not completely inspected

Content

Scanner excerpt · SKILL.md (reported line 46)May include surrounding context.

md
> **Note:** Node.js network access is required to run the `antekirt.js` script. In sandboxed environments where Node.js DNS resolution is unavailable, use the `

Ae1

High
Category
analysis-evasion
Confidence
100% confidence
Finding

Referenced artifact was not completely inspected

Content

Scanner excerpt · SKILL.md (reported line 51)May include surrounding context.

md
> **Note:** Node.js network access is required to run the `antekirt.js` script. In sandboxed environments where Node.js DNS resolution is unavailable, use the `

Ae1

High
Category
analysis-evasion
Confidence
100% confidence
Finding

Referenced artifact was not completely inspected

Content

Scanner excerpt · SKILL.md (reported line 65)May include surrounding context.

md
> **Note:** Node.js network access is required to run the `antekirt.js` script. In sandboxed environments where Node.js DNS resolution is unavailable, use the `

Ae1

High
Category
analysis-evasion
Confidence
100% confidence
Finding

Referenced artifact was not completely inspected

Content

Scanner excerpt · SKILL.md (reported line 72)May include surrounding context.

md
> **Note:** Node.js network access is required to run the `antekirt.js` script. In sandboxed environments where Node.js DNS resolution is unavailable, use the `

Ae1

High
Category
analysis-evasion
Confidence
100% confidence
Finding

Referenced artifact was not completely inspected

Content

Scanner excerpt · SKILL.md (reported line 103)May include surrounding context.

md
> **Note:** Node.js network access is required to run the `antekirt.js` script. In sandboxed environments where Node.js DNS resolution is unavailable, use the `

Ae1

High
Category
analysis-evasion
Confidence
100% confidence
Finding

Referenced artifact was not completely inspected

Content

Scanner excerpt · SKILL.md (reported line 113)May include surrounding context.

md
> **Note:** Node.js network access is required to run the `antekirt.js` script. In sandboxed environments where Node.js DNS resolution is unavailable, use the `

Undeclared Tool Scope

Medium
Category
MCP Least Privilege
Confidence
95% confidence
Finding

The skill explicitly requires environment variables and network access, but it does not declare any tool scope such as permissions or allowed-tools. That omission can cause the runtime to grant broader capabilities than users expect, reducing transparency around secret access and outbound network use.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
97% confidence
Finding

The trigger phrases include very common requests like 'draw', 'illustrate', and 'generate an image', which are likely to match ordinary user prompts outside a deliberate invocation of this skill. In context, the skill can consume API credits and transmit user prompts to an external service, so overbroad triggering increases the chance of unintended activation and data disclosure.

Content

No source excerpt is available for this finding.

External Transmission

Medium
Category
Data Exfiltration
Confidence
50% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 56)May include surrounding context.

Alternative (curl):

bash
curl -s "https://api.antekirt.com/api/v1/artists?limit=25" \
  -H "x-api-key: <your_api_key>"

External Transmission

Medium
Category
Data Exfiltration
Confidence
50% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 88)May include surrounding context.

Alternative (curl):

bash
curl -s "https://api.antekirt.com/api/v1/artists?limit=25" \
  -H "x-api-key: <your_api_key>"

External Transmission

Medium
Category
Data Exfiltration
Confidence
50% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 94)May include surrounding context.

Alternative (curl):

bash
curl -s "https://api.antekirt.com/api/v1/artists?limit=25" \
  -H "x-api-key: <your_api_key>"

External Transmission

Medium
Category
Data Exfiltration
Confidence
60% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 88)May include surrounding context.

Alternative (curl):

bash
# Step 1 — submit generation
curl -s -X POST "https://api.antekirt.com/api/v1/generations/image" \
  -H "x-api-key: <your_api_key>" \
  -H "content-type: application/json" \
  -d '{"artistId": "<uuid>", "prompt": "bowl of spaghetti"}'

Static analysis

No suspicious patterns detected.