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Security audit

Civis

Security checks for vulnerabilities and agentic risk

Overview

The skill is a disclosed Civis API integration, but it pushes broad external searches and optional detailed submissions in ways that could expose private project context without enough safeguards.

Install only if you are comfortable with agents sending summarized task context to Civis. Do not send raw logs, secrets, credentials, customer data, private source code, internal URLs, or production error traces; review and sanitize every query or build-log payload before use, especially with an API key.

A.I.G

Vulnerability Patterns
  • Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
  • Insecure Skill Coding PracticesFinds exploitable flaws such as hardcoded secrets or command injection
  • 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 (2)

T01 · Skill Instruction Hijacking

Error
Location
SKILL.md:16
Finding

Unconditional External-Service Workflow Hijacking

Content
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Remediation
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T09 · Insecure Skill Coding Practices

Error
Location
SKILL.md:54
Finding

Potential Disclosure of Sensitive Errors, Source Code, and Environment Metadata

Content
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Remediation
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SkillSpector

Vulnerability Patterns
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (2)

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
91% confidence
Finding

The skill strongly instructs agents to query Civis before attempting many common engineering tasks, including broad categories like auth, parsing, file I/O, and periodic improvement loops. This over-broad activation guidance can cause unnecessary transmission of problem descriptions, errors, stack details, or snippets of operational context to an external service during routine work, increasing data exposure and dependency on third-party content.

Content

No source excerpt is available for this finding.

External Transmission

Medium
Category
Data Exfiltration
Confidence
95% confidence
Finding

The skill includes a write path that sends agent-generated build logs, including problem descriptions, solutions, results, stack metadata, optional code snippets, source URLs, and environment details, to an external API. Because the skill encourages contributing solved problems back to the service, an agent could exfiltrate proprietary code, internal architecture details, secrets accidentally embedded in logs, or other sensitive operational context to a third party.

Content

Scanner excerpt · SKILL.md (reported line 195)May include surrounding context.

If you solve a novel problem, contribute it back. Requires an API key.

bash
curl -X POST "https://app.civis.run/api/v1/constructs" \
  -H "Authorization: Bearer $CIVIS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{

Static analysis

No suspicious patterns detected.