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Security audit

Capacities

Security checks for vulnerabilities and agentic risk

Overview

The skill matches its Capacities note-taking purpose, but its shell examples need review because unsafe value substitution could run unintended local commands.

Review before installing. Use this only with your own Capacities account, keep the API token private, and avoid asking an agent to paste arbitrary note text directly into the provided shell commands. A safer version should build JSON with a structured tool or HTTP client instead of interpolating user content into shell source.

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

Warning
Location
SKILL.md:23
Finding

Shell Command Injection Through Unsafe JSON Payload Templates

Content
View full analysis
Remediation
View remediation

SkillSpector

Vulnerability Patterns
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (5)

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 27)May include surrounding context.

md
### Daily Notes
To add a thought, task, or note to today's daily note:
`curl -X POST https://api.capacities.io/save-to-daily-note -H "Authorization: Bearer $CAPACITIES_API_TOKEN" -H "Content-Type: application/json" -d '{"spaceId": "$CAPACITIES_SPACE_ID", "mdText": "Your note here"}'`

### Web Links
To save a URL to your space:

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 27)May include surrounding context.

md
### Daily Notes
To add a thought, task, or note to today's daily note:
`curl -X POST https://api.capacities.io/save-to-daily-note -H "Authorization: Bearer $CAPACITIES_API_TOKEN" -H "Content-Type: application/json" -d '{"spaceId": "$CAPACITIES_SPACE_ID", "mdText": "Your note here"}'`

### Web Links
To save a URL to your space:

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 31)May include surrounding context.

md
### Daily Notes
To add a thought, task, or note to today's daily note:
`curl -X POST https://api.capacities.io/save-to-daily-note -H "Authorization: Bearer $CAPACITIES_API_TOKEN" -H "Content-Type: application/json" -d '{"spaceId": "$CAPACITIES_SPACE_ID", "mdText": "Your note here"}'`

### Web Links
To save a URL to your space:

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 35)May include surrounding context.

md
### Daily Notes
To add a thought, task, or note to today's daily note:
`curl -X POST https://api.capacities.io/save-to-daily-note -H "Authorization: Bearer $CAPACITIES_API_TOKEN" -H "Content-Type: application/json" -d '{"spaceId": "$CAPACITIES_SPACE_ID", "mdText": "Your note here"}'`

### Web Links
To save a URL to your space:

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 39)May include surrounding context.

md
### Daily Notes
To add a thought, task, or note to today's daily note:
`curl -X POST https://api.capacities.io/save-to-daily-note -H "Authorization: Bearer $CAPACITIES_API_TOKEN" -H "Content-Type: application/json" -d '{"spaceId": "$CAPACITIES_SPACE_ID", "mdText": "Your note here"}'`

### Web Links
To save a URL to your space:

Static analysis

No suspicious patterns detected.