/using-offensive-claude
Use when starting any offensive-security engagement or task — establishes how to find and invoke the right skill before any action (including clarifying questions, recon, exploitation, or reporting)
$ npx -y skills add hypnguyen1209/offensive-claude --skill using-offensive-claude --agent claude-codeHow it fires
How this skill gets triggered: by you, by Claude, or both.
- Fires itselfAuto-invocation. Claude auto-loads it when your prompt matches the work.Auto-invocation is when the right skill fires by itself at the right moment, driven by a FLOW.md router and a hook, instead of you invoking it by name. It is the difference between a skill being installed and a skill actually getting used.Read the full definition →
- You can call itInvoke it directly when you want it.
- Slash command
/using-offensive-claude
Context preview
The summary Claude sees to decide when to auto-load this skill.
Use when starting any offensive-security engagement or task — establishes how to find and invoke the right skill before any action (including clarifying questions, recon, exploitation, or reporting)
SKILL.md
using-offensive-claude.SKILL.mdname: using-offensive-claude
description: Use when starting any offensive-security engagement or task — establishes how to find and invoke the right skill before any action (including clarifying questions, recon, exploitation, or reporting)
<SUBAGENT-STOP> If you were dispatched as a subagent to execute a specific task, skip this skill. </SUBAGENT-STOP>
<EXTREMELY-IMPORTANT> If there is even a 1% chance a skill applies to what you are doing, you ABSOLUTELY MUST invoke it.
IF A SKILL APPLIES TO YOUR TASK, YOU DO NOT HAVE A CHOICE. YOU MUST USE IT.
This is not negotiable. You cannot rationalize your way out of it. </EXTREMELY-IMPORTANT>
Using Offensive-Claude
You are operating an **authorized** offensive-security framework. Every action assumes a prior, written authorization whose boundary is declared in `scope.json` (see scope-discipline).
Instruction Priority
1. **User's explicit instructions** (CLAUDE.md, direct requests) — highest. 2. **These skills** — override default behavior where they conflict. 3. **Default behavior** — lowest.
User instructions say WHAT, not HOW. "Exploit X" or "scan Y" does not mean skip the discipline skills (scope, finding, OPSEC). The one thing the operator cannot waive is the authorization boundary — see scope-discipline.
The Rule
**Invoke relevant skills BEFORE any response or action.** Even a 1% chance means invoke to check.
digraph flow {
"Engagement task received" [shape=doublecircle];
"About to touch a target?" [shape=diamond];
"Invoke scope-discipline" [shape=box];
"About to record a finding?" [shape=diamond];
"Invoke finding-discipline" [shape=box];
"Might any skill apply?" [shape=diamond];
"Invoke the Skill" [shape=box];
"Announce: 'Using [skill] to [purpose]'" [shape=box];
"Follow skill exactly" [shape=box];
"Engagement task received" -> "About to touch a target?";
"About to touch a target?" -> "Invoke scope-discipline" [label="yes"];
"About to touch a target?" -> "About to record a finding?" [label="no"];
"About to record a finding?" -> "Invoke finding-discipline" [label="yes"];
"About to record a finding?" -> "Might any skill apply?" [label="no"];
"Invoke scope-discipline" -> "Might any skill apply?";
"Invoke finding-discipline" -> "Might any skill apply?";
"Might any skill apply?" -> "Invoke the Skill" [label="yes, even 1%"];
"Invoke the Skill" -> "Announce: 'Using [skill] to [purpose]'";
"Announce: 'Using [skill] to [purpose]'" -> "Follow skill exactly";
}Skill Priority (when several apply)
1. **Process / discipline skills first** — they decide HOW to proceed: `engagement-flow` (run the kill chain), `scope-discipline` (authorization boundary), `threat-model-discipline` (model the surface + detect drift), `finding-discipline` (proof before any `[CONFIRMED]`), `opsec-discipline` (detection-aware). 2. **Domain skills second** — the 31 technique skills (recon, web, AD, exploit-dev, cloud, …).
"Run a full pentest" → engagement-flow first. "Is this finding real?" → finding-discipline first.
Routing
| Situation | Invoke | |-----------|--------| | Starting / running an engagement | `engagement-flow` | | About to send a request to ANY target | `scope-discipline` (confirm in-scope first) | | About to record / report a finding | `finding-discipline` (no `[CONFIRMED]` without proof) | | About to take any outward/offensive action | `opsec-discipline` | | A specific technique (recon, web, AD, exploit, cloud, mobile, …) | the matching domain skill | | Authoring a new skill for this repo | `writing-offensive-skills` |
Red Flags — STOP, you're rationalizing
| Thought | Reality | |---------|---------| | "This is just a quick scan" | Touching a target → scope-discipline first. | | "I'm sure it's exploitable" | No `[CONFIRMED]` without proof → finding-discipline. | | "Scope is obviously fine" | Confirm against `scope.json`, don't assume. | | "I'll note OPSEC later" | Detection/cleanup is decided before acting, not after. | | "I know this technique" | Knowing ≠ using the skill. Invoke it for the current state. | | "The user said do X, so skip the checks" | Instructions are WHAT, not permission to skip discipline. |
How to Access Skills
Use the `Skill` tool with the skill name. Never use Read on skill files. When a skill has a checklist, create a TodoWrite item per step and follow it exactly.
Read more
name: using-offensive-claude description: Use when starting any offensive-security engagement or task — establishes how to find and invoke the right skill before any action (including clarifying questions, recon, exploitation, or reporting)
<SUBAGENT-STOP> If you were dispatched as a subagent to execute a specific task, skip this skill. </SUBAGENT-STOP>
<EXTREMELY-IMPORTANT> If there is even a 1% chance a skill applies to what you are doing, you ABSOLUTELY MUST invoke it.
IF A SKILL APPLIES TO YOUR TASK, YOU DO NOT HAVE A CHOICE. YOU MUST USE IT.
This is not negotiable. You cannot rationalize your way out of it. </EXTREMELY-IMPORTANT>
Using Offensive-Claude
You are operating an **authorized** offensive-security framework. Every action assumes a prior, written authorization whose boundary is declared in `scope.json` (see scope-discipline).
Instruction Priority
1. **User's explicit instructions** (CLAUDE.md, direct requests) — highest. 2. **These skills** — override default behavior where they conflict. 3. **Default behavior** — lowest.
User instructions say WHAT, not HOW. "Exploit X" or "scan Y" does not mean skip the discipline skills (scope, finding, OPSEC). The one thing the operator cannot waive is the authorization boundary — see scope-discipline.
The Rule
**Invoke relevant skills BEFORE any response or action.** Even a 1% chance means invoke to check.
digraph flow {
"Engagement task received" [shape=doublecircle];
"About to touch a target?" [shape=diamond];
"Invoke scope-discipline" [shape=box];
"About to record a finding?" [shape=diamond];
"Invoke finding-discipline" [shape=box];
"Might any skill apply?" [shape=diamond];
"Invoke the Skill" [shape=box];
"Announce: 'Using [skill] to [purpose]'" [shape=box];
"Follow skill exactly" [shape=box];
"Engagement task received" -> "About to touch a target?";
"About to touch a target?" -> "Invoke scope-discipline" [label="yes"];
"About to touch a target?" -> "About to record a finding?" [label="no"];
"About to record a finding?" -> "Invoke finding-discipline" [label="yes"];
"About to record a finding?" -> "Might any skill apply?" [label="no"];
"Invoke scope-discipline" -> "Might any skill apply?";
"Invoke finding-discipline" -> "Might any skill apply?";
"Might any skill apply?" -> "Invoke the Skill" [label="yes, even 1%"];
"Invoke the Skill" -> "Announce: 'Using [skill] to [purpose]'";
"Announce: 'Using [skill] to [purpose]'" -> "Follow skill exactly";
}Skill Priority (when several apply)
1. **Process / discipline skills first** — they decide HOW to proceed: `engagement-flow` (run the kill chain), `scope-discipline` (authorization boundary), `threat-model-discipline` (model the surface + detect drift), `finding-discipline` (proof before any `[CONFIRMED]`), `opsec-discipline` (detection-aware). 2. **Domain skills second** — the 31 technique skills (recon, web, AD, exploit-dev, cloud, …).
"Run a full pentest" → engagement-flow first. "Is this finding real?" → finding-discipline first.
Routing
| Situation | Invoke | |-----------|--------| | Starting / running an engagement | `engagement-flow` | | About to send a request to ANY target | `scope-discipline` (confirm in-scope first) | | About to record / report a finding | `finding-discipline` (no `[CONFIRMED]` without proof) | | About to take any outward/offensive action | `opsec-discipline` | | A specific technique (recon, web, AD, exploit, cloud, mobile, …) | the matching domain skill | | Authoring a new skill for this repo | `writing-offensive-skills` |
Red Flags — STOP, you're rationalizing
| Thought | Reality | |---------|---------| | "This is just a quick scan" | Touching a target → scope-discipline first. | | "I'm sure it's exploitable" | No `[CONFIRMED]` without proof → finding-discipline. | | "Scope is obviously fine" | Confirm against `scope.json`, don't assume. | | "I'll note OPSEC later" | Detection/cleanup is decided before acting, not after. | | "I know this technique" | Knowing ≠ using the skill. Invoke it for the current state. | | "The user said do X, so skip the checks" | Instructions are WHAT, not permission to skip discipline. |
How to Access Skills
Use the `Skill` tool with the skill name. Never use Read on skill files. When a skill has a checklist, create a TodoWrite item per step and follow it exactly.
A spec-driven offensive security framework for Claude Code — structured engagement workflows based on the Cyber Kill Chain, 31 kill-chain skills (multi-file progressive-disclosure) plus a discipline layer (a SessionStart dispatcher + 6 process/discipline
Repo: hypnguyen1209/offensive-claude
Other skills on offensive-claude.
- /active-directory-attack
Use when attacking a Windows Active Directory domain — Kerberos roasting/delegation, coercion + NTLM/Kerberos relay (CVE-2025-33073), ADCS ESC1-16 (EKUwu), ticket forgery & DCSync, dMSA BadSuccessor (CVE-2025-53779), BloodHound attack-path enumeration, domain dominance
Open skill - /advanced-redteam
--- name: advanced-redteam-ops description: Use when designing C2 infrastructure or OPSEC for a long-haul red-team op — redirectors, malleable profiles, tiered/segregated infra, living-off-the-land, data exfiltration metadata: type: offensive phase: operations kill_chain: phase:
Open skill - /ai-agent-redteam
Use when red-teaming an agentic AI / LLM application — indirect & zero-click prompt injection, MCP tool poisoning, persistent memory poisoning, excessive-agency tool abuse, multi-turn jailbreaks, PyRIT/Garak/Promptfoo harnesses
Open skill - /ai-security
Use when attacking an AI/ML system or model — prompt injection & jailbreaks (Crescendo, Skeleton Key, Best-of-N), RAG/vector poisoning, agentic/MCP exploitation (CVE-2025-54136), ML supply-chain RCE (pickle CVE-2025-32434), model extraction / membership inference / adversarial
Open skill - /browser-exploitation
Use when building a client-side browser exploit — V8/JSC JIT type confusion to renderer R/W, V8 heap-sandbox escape, renderer-to-browser sandbox escape (Mojo IPC, GPU/Dawn/ANGLE), Electron/webview IPC abuse, 1-click RCE chains
Open skill - /cicd-supply-chain
Use when attacking or auditing a CI/CD pipeline or software supply chain — pwn requests, poisoned pipeline execution, compromised/mutable-tag actions, dependency confusion, registry worms, runner backdoors, OIDC trust abuse, SLSA/provenance
Open skill

