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Security audit

treeline

Security checks for vulnerabilities and agentic risk

Overview

The skill appears finance-focused and not malicious, but it installs an unpinned native CLI and tells the agent to persist financial context without clear consent controls.

Install only if you trust Treeline's release channel and are comfortable with the agent reading your local financial database. Before use, verify the CLI source/version independently, avoid allowing automatic upgrades from latest links, and do not let the agent store financial preferences or account meanings in memory unless you explicitly choose what is saved.

Vulnerability Patterns
  • Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
  • 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
  • Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
Findings (2)

T03 · Remote Payload Retrieval and Execution

Error
Location
SKILL.md:6
Finding

Mutable External Executables Are Downloaded Without Integrity Verification

Content
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Remediation
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T09 · Insecure Skill Coding Practices

Warning
Location
SKILL.md:210
Finding

Sensitive Financial Context Is Directed Into Persistent Agent Memory Without Explicit Consent

Content
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Remediation
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Vulnerability Patterns
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (1)

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
75% confidence
Finding

Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Content

Scanner excerpt · SKILL.md (reported line 173)May include surrounding context.

tl demo on|off # Toggle demo mode (sample data)

text

> **Tip:** `--dry-run` variants are read-only and safe to run without confirmation. Use them to preview before asking the user to confirm the actual operation.

**Use `tl compact` if the user mentions slow queries** — it optimizes the database.

Static analysis

No suspicious patterns detected.