claude-red is a library of structured skills that give Claude specialized offensive-security methods for areas such as web vulnerabilities, shellcode, exploit development, and identity systems. It is intended for authorized red-team work, bug-bounty triage, security research, CTF preparation, and operator training. Its catalogue contains the project's skills for loading these security specializations into Claude.
Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add SnailSploit/Claude-Red --skill offensive-advanced-redteamgit clone --depth 1 https://github.com/SnailSploit/Claude-RedWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/snailsploit/claude-red/offensive-advanced-redteam)<a href="https://agentmods.dev/skills/snailsploit/claude-red/offensive-advanced-redteam"><img src="https://agentmods.dev/badge/skills/snailsploit/claude-red/offensive-advanced-redteam.svg" alt="Measured on agentmods" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 5 findings, up to critical
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- critical YARA Match · line 633 YARA rule matched a known malware signature (reverse shell, backdoor, ransomware, C2 framework, or info stealer).Fix: Remove the malware payload or compromised file entirely. Investigate how it entered the skill and audit all other artifacts for additional indicators of compromise.
- high YARA Match · line 335 YARA rule matched a known malware signature (reverse shell, backdoor, ransomware, C2 framework, or info stealer).Fix: Remove the malware payload or compromised file entirely. Investigate how it entered the skill and audit all other artifacts for additional indicators of compromise.
- medium Privilege Escalation · line 111 Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
- medium Privilege Escalation · line 186 Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
- medium Data Exfiltration · line 120 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00146 | $0.06264 |
| Opus 5 | $0.00073 | $0.03132 |
| Sonnet 5 | $0.00029 | $0.01253 |
| Haiku 4.5 | $0.00015 | $0.00626 |
Grade A, and why
offensive-advanced-redteam scanned grade A with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Asks for rootlowPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
sudo certbot certonly --standalone -d ops-portal.example.com Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -s "https://sitereview.bluecoat.com/resource/lookup" \ How it starts
The opening of the file, as written. The whole thing — 641 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Advanced Red Team Operations
Red team engagements simulate real-world adversaries against an organization's people, processes, and technology. Unlike penetration tests that maximize vulnerability discovery in a fixed scope, red team operations test detection and response capabilities by pursuing specific objectives while evading defenders. You operate under rules of engagement that define what is in bounds, and every action you take must be deliberate, documented, and reversible. This skill covers the full engagement lifecycle from initial planning through final debrief.
Quick Workflow
- Negotiate scope, rules of engagement, and deconfliction procedures with the client.
- Build tiered attack infrastructure with redirectors, aged domains, and valid TLS.
- Configure C2 profiles to blend with the target's legitimate traffic patterns.
- Execute the attack chain while maintaining strict OPSEC and logging every action.
- Collect and stage data with encryption; maintain chain of custody throughout.
- Evade endpoint and network defenses using tested bypass techniques.
- Document findings with MITRE ATT&CK mappings and deliver structured reporting.
- Conduct purple team debrief to validate detection gaps and remediation.
Engagement Planning
Every red team engagement begins with planning that protects both the operator and the client. Skipping this phase leads to scope disputes, legal exposure, and operational failures.
Scope and Objectives
Define what you are testing and what success looks like. Common objective types include data exfiltration (retrieve specific records from a database), domain dominance (obtain Domain Admin or equivalent), business process disruption (demonstrate ability to halt a critical workflow), and physical access (gain entry to a restricted area).
Document explicitly what is out of scope: production systems that cannot tolerate downtime, third-party SaaS platforms without authorization, destructive actions, and social engineering of specific individuals (executives, legal counsel).
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 8d ago First seen · 641 lines · 146 tokens per session scan A d5e1d178728c
offensive-advanced-redteam is a skill published in the GitHub repository SnailSploit/Claude-Red (3,040 stars, last pushed 8d ago), licensed MIT. It adds 146 tokens to every session and 6,264 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it A with 2 findings (asks for root, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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