Skill Trust Decision
introspection-debugger
Skill implements legitimate debugging functionality but contains multiple undeclared sensitive capabilities: arbitrary shell execution, filesystem write at extracted paths, and external network transmission of full error reports including stack traces.
Most direct threat evidence
01
Skill presented as debugging framework in SKILL.md Entry · SKILL.md
02
Hides shell execution capability from documentation stealth · SKILL.md
03
Executes arbitrary shell commands via execAsync Escalation · introspection-debugger.js
Why this conclusion was reached
2/4 dimensions flagged Block
Declared vs actual capability
3 undeclared or violating capabilities were inferred.
Review
Hidden execution and egress
2 lower-risk artifacts were extracted and still need context.
Block
Attack chain and severe findings
The report includes 5 attack-chain steps and 2 severe findings.
Pass
Dependencies and supply chain hygiene
Dependencies are present but no obvious high-risk issue stands out.
Attack Chain
01
Skill presented as debugging framework in SKILL.md
Entry · SKILL.md:1
02
Hides shell execution capability from documentation
stealth · SKILL.md:1
03
Executes arbitrary shell commands via execAsync
Escalation · introspection-debugger.js:225
04
Writes files to arbitrary paths extracted from errors
Escalation · introspection-debugger.js:137
05
Exfiltrates full error reports with stack traces to external webhook
Impact · introspection-debugger.js:263
What drove the risk score up
Undeclared shell execution +20
execAsync runs arbitrary shell commands (npm install, chmod) not mentioned in SKILL.md
Undeclared filesystem WRITE +15
Creates files at paths extracted from error messages without declaring this capability
Undeclared network exfiltration +15
Sends full error reports with stack traces to arbitrary webhook URLs
Arbitrary dependency installation +10
npm install without version pinning - supply chain risk
Documentation mismatch +10
SKILL.md does not mention shell commands, file writes to extracted paths, or webhook POST requests
Most important evidence
High Doc Mismatch
Undeclared shell command execution
The skill executes arbitrary shell commands via exec() function (npm install, chmod +x) but SKILL.md does not declare any shell execution capabilities. This violates transparency requirements.
introspection-debugger.js:225 Document shell execution as a declared capability with clear use cases in SKILL.md
High Doc Mismatch
Undeclared network transmission
The notificationHook can POST full error reports including stack traces to arbitrary external URLs. This is data exfiltration capability not declared in SKILL.md.
introspection-debugger.js:263 Document network transmission capability and advise users to only use trusted internal webhooks
Medium Priv Escalation
Unrestricted file creation at extracted paths
The createMissingFile fix method extracts file paths from error messages and writes files to those paths. This could be exploited to write files to arbitrary locations if error messages are crafted.
introspection-debugger.js:137 Implement path validation to restrict file writes to workspace directory only
Medium Supply Chain
Dependency installation without version pinning
The installDependency method runs 'npm install <moduleName>' without specifying versions, allowing installation of latest versions which could introduce malicious dependencies.
introspection-debugger.js:159 Pin to major version ranges or require explicit user approval for installation
Medium Data Exfil
Full error context including stack traces transmitted externally
Error reports sent via notificationHook include full stack traces which may contain sensitive information like file paths, environment context, or internal logic.
introspection-debugger.js:293 Redact or allow users to configure which fields are included in external reports
Declared capability vs actual capability
Filesystem Block
Declared NONE
→ Inferred WRITE
introspection-debugger.js:137 fs.writeFileSync(filePath, content) Shell Block
Declared NONE
→ Inferred WRITE
introspection-debugger.js:225 execAsync(cmd, options) Network Block
Declared NONE
→ Inferred WRITE
introspection-debugger.js:263 fetch.request with POST method to notificationHook Environment Pass
Declared NONE
→ Inferred NONE
— Suspicious artifacts and egress
Medium External URL
https://clawhub.ai/user/danihe001 skill-card.md:7
Medium External URL
https://clawhub.ai/danihe001/introspection-debugger skill-card.md:27
Dependencies and supply chain
| Package | Version | Source | Known vuln | Notes |
|---|---|---|---|---|
| Node.js built-ins | N/A | builtin | No | Uses only built-in modules: fs, path, child_process, events |
File composition
4 files · 660 lines
JavaScript 1 files · 526 linesMarkdown 2 files · 129 linesJSON 1 files · 5 lines
Files of concern · 2
introspection-debugger.js Undeclared shell command execution · Undeclared network transmission · Unrestricted file creation at extracted paths · Dependency installation without version pinning · Full error context including stack traces transmitted externally
skill-card.md https://clawhub.ai/user/danihe001 · https://clawhub.ai/danihe001/introspection-debugger
Other files · SKILL.md · _meta.json
Security positives
No credential harvesting detected (does not iterate os.environ for secrets)
No base64 obfuscation or anti-analysis techniques found
No access to sensitive paths like ~/.ssh, ~/.aws, or .env
No reverse shell, C2 communication, or persistence mechanisms
Legitimate use case for AI agent self-diagnosis and repair