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Security audit

Philidor — DeFi Vault Intelligence

Security checks for vulnerabilities and agentic risk

Overview

This skill is a read-only DeFi research integration whose external CLI/API use is coherent with its purpose, but users should understand that wallet analysis queries go to Philidor’s service and the CLI dependency is not pinned.

Install this only if you are comfortable trusting Philidor’s npm CLI and API. Avoid submitting wallet addresses you do not want associated with Philidor service queries, and treat vault recommendations as research support rather than financial advice.

A.I.G

Vulnerability Patterns
  • Insecure DependenciesIntroduces malicious components through unsafe dependency sources
  • 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)

T08 · Insecure Dependencies

Warning
Location
SKILL.md:18
Finding

Unpinned External CLI Dependency

Content
View full analysis
Remediation
View remediation

SkillSpector

Vulnerability Patterns
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (5)

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
91% confidence
Finding

The skill description uses very broad trigger language such as 'find safe DeFi vaults', 'compare yields', and 'analyze a wallet's DeFi positions' without clear boundaries on when the skill should be invoked. In an agent environment, this can cause over-selection of the skill for generic finance or wallet-related requests, leading to unnecessary external tool use and unintended disclosure of user financial context to the Philidor CLI/API.

Content

No source excerpt is available for this finding.

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The skill explicitly encourages running portfolio analysis on a wallet address but does not warn that the address and associated portfolio query will be sent to an external CLI/API. Wallet addresses are sensitive financial identifiers; transmitting them without clear notice or consent can expose a user's holdings, activity patterns, and cross-chain positions to third parties.

Content

No source excerpt is available for this finding.

Whitespace Padding

Medium
Category
Prompt Injection
Confidence
70% confidence
Finding

Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.

Content

Scanner excerpt · SKILL.md (reported line 54)May include surrounding context.

md
Every vault receives a composite risk score from 0 to 10, grouped into three tiers:

| Tier        | Score Range | Meaning                                                                                        |
| ----------- | ----------- | ---------------------------------------------------------------------------------------------- |
| **Prime**   | 8.0 - 10.0  | Institutional-grade. Battle-tested protocols, blue-chip assets, strong governance controls.    |
| **Core**    | 5.0 - 7.9   | Solid fundamentals with some trade-offs in asset quality, audit coverage, or decentralisation. |

Whitespace Padding

Medium
Category
Prompt Injection
Confidence
70% confidence
Finding

Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.

Content

Scanner excerpt · SKILL.md (reported line 336)May include surrounding context.

md
## Error Handling

| Error                   | Cause                                     | Fix                                                                                                                      |
| ----------------------- | ----------------------------------------- | ------------------------------------------------------------------------------------------------------------------------ |
| `Connection refused`    | API server unreachable                    | Check network connectivity. Verify `--api-url` if using a custom endpoint. The default is `https://api.philidor.io`.     |
| `404 Not Found`         | Invalid vault ID, protocol ID, or address | Verify the vault ID exists with `philidor vaults`. Check that the network slug is correct (e.g., `ethereum`, not `eth`). |

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 359)May include surrounding context.

md
## Resources

- **Website**: [https://philidor.io](https://philidor.io)
- **API Documentation**: [https://api.philidor.io/v1/docs](https://api.philidor.io/v1/docs)
- **Risk Methodology**: `philidor risk explain` or [https://philidor.io/risk](https://philidor.io/risk)

Static analysis

No suspicious patterns detected.