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network-reachability

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Mis à jour22 juillet 2026 à 22:27

Use when a network probe, DNS lookup, HTTP fetch, or nmap scan reports the target host or the internet is unreachable. Stops further probing and reports a target-readiness blocker with useful diagnostics.

Installation

Installer avec Codex ou Claude Copiez ce prompt, collez-le dans Codex, Claude ou un autre assistant, puis laissez-le vérifier la page du skill et l'installer pour vous.

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Source

justsml

justsml/ExploitHunter.app

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Métiers associésSOC

Basé sur la classification professionnelle SOC

Administrateurs de réseaux et de systèmes informatiquesProfessions informatiques et mathématiques·SOC 15-1244

SKILL.md

readonly

name	network-reachability
description	Use when a network probe, DNS lookup, HTTP fetch, or nmap scan reports the target host or the internet is unreachable. Stops further probing and reports a target-readiness blocker with useful diagnostics.

Network Reachability & Circuit Breaker

Use this skill as an early circuit breaker when a network probe fails to reach the target host or the internet at large. A failed probe is a signal, not a reason to retry blindly.

When To Use

Trigger this procedure whenever a network-touching step reports the target host or the internet is unreachable:

DNS failure (ENOTFOUND, EAI_AGAIN, "name resolution failed", "Temporary failure in name resolution").
Connection refused (ECONNREFUSED, port closed).
No route to host (ENETUNREACH, "Network is unreachable", "No route to host").
Host seems down (nmap "Host seems down", no response to probes).
Fetch-level network errors (fetch failed, Failed to fetch, NetworkError).

Procedure

STOP further probing immediately. Do not retry automatically or escalate to a broader scan against the same unreachable host.
Classify the boundary correctly. This is a target-readiness, routing, or harness failure unless separate evidence proves otherwise; it is not a security finding about the target.
Report the failure in chat. Include the exact operation, normalized error, target, timestamp, and the workspace/network boundary from which it was attempted. Preserve raw output in expandable diagnostics.
Offer one practical recovery step. Ask the user to start the target, correct its address/network attachment, or retry the same bounded baseline after readiness is restored. Do not suspend the run with a menu of speculative scans.
Record the blocker so the research plan reflects reality and does not loop on the same unavailable target.

Guardrails

Stay within the approved network profile and target scope. Never bypass egress iptables rules to force reachability.
Do not auto-escalate from a failed probe to a heavier scan. A broader scan is a separate, evidence-backed decision after basic target readiness is restored.

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Network Reachability & Circuit Breaker

Use this skill as an early circuit breaker when a network probe fails to reach the target host or the internet at large. A failed probe is a signal, not a reason to retry blindly.

When To Use

Trigger this procedure whenever a network-touching step reports the target host or the internet is unreachable:

DNS failure (ENOTFOUND, EAI_AGAIN, "name resolution failed", "Temporary failure in name resolution").

Connection refused (ECONNREFUSED, port closed).

No route to host (ENETUNREACH, "Network is unreachable", "No route to host").

Host seems down (nmap "Host seems down", no response to probes).

Fetch-level network errors (fetch failed, Failed to fetch, NetworkError).

Procedure

STOP further probing immediately. Do not retry automatically or escalate to a broader scan against the same unreachable host.

Classify the boundary correctly. This is a target-readiness, routing, or harness failure unless separate evidence proves otherwise; it is not a security finding about the target.

Report the failure in chat. Include the exact operation, normalized error, target, timestamp, and the workspace/network boundary from which it was attempted. Preserve raw output in expandable diagnostics.

Offer one practical recovery step. Ask the user to start the target, correct its address/network attachment, or retry the same bounded baseline after readiness is restored. Do not suspend the run with a menu of speculative scans.

Record the blocker so the research plan reflects reality and does not loop on the same unavailable target.

Guardrails

Stay within the approved network profile and target scope. Never bypass egress iptables rules to force reachability.

Do not auto-escalate from a failed probe to a heavier scan. A broader scan is a separate, evidence-backed decision after basic target readiness is restored.