skill-stijnman-grok-custom-skills-exposed-service-triage · by Install
$ agentstack add skill-stijnman-grok-custom-skills-exposed-service-triage ✓ scanned · ✓ verified — works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
Verified badge
Passed review? Show it. Paste this badge into your README — it links to the public security report.
Links to your public security report.[](https://agentstack.voostack.com/security/report/skill-stijnman-grok-custom-skills-exposed-service-triage) Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming — see below.
We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps — measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.
How agent discovery & health will work →About
Exposed Service Triage
When to Use
- User says exposed port or task matches this capability
- User says what is listening or task matches this capability
- User says fix exposed service or task matches this capability
- User says open port or task matches this capability
Workflow
- Run read-only listener inventory (ss -tln, fuser) on user machine.
- Map ports to processes; classify MCP-related vs system vs unknown.
- Present findings table with risk tier and plain-language explanation.
- Recommend: bind 127.0.0.1, disable service, or firewall rule.
- Before stopping/disabling any service: hitl-approver required.
- Never run aggressive remote scans or attack exposed services.
Integrations
defensive-mcp-audithitl-approver
Error Handling
| Failure | Response | |---------|----------| | Cannot identify process | Report port and binding; suggest sudo ss -tlnp with user consent. | | User requests aggressive scan | Decline; offer defensive audit only. |
Gotchas
- Common OS services on 0.0.0.0 may be intentional; explain before recommending disable.
Safety & Ethics (Publication-Ready)
This skill is designed for public distribution. Constraints:
- Read-only discovery first; service changes only after HITL approval.
- No denial-of-service, exploitation, or unauthorized access attempts.
- Remediation is documented steps for the user or admin to apply.
Prohibited actions
- No unauthorized access, malware, or harmful automation
- No silent exfiltration of data, credentials, or telemetry
- No destructive system changes without hitl-approver
- No publication of user PII or environment secrets in outputs
Example
Input: User request matching triggers above. Output: Structured result per workflow; local artifacts only unless user opts in.
Source & license
This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: Stijnman
- Source: Stijnman/grok-custom-skills
- License: MIT
Install and usage instructions live in the source repository linked above.
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Versions
- v0.1.0 Imported from the upstream source.