This skill is Raven's policy enforcer. It runs the same defensive plan as raven-zero-day-defend but with the human pre-authorizing classes of action by policy rather than each individual action. It is the highest-blast-radius skill in the 0-day suite, and the rules below are non-negotiable.
raven-zero-day-auto-prevent is a community-contributed Claude Code skill in the automation sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/zero-day-auto-prevent/ and loads when your prompt matches the skill's trigger.
When to invoke it: Use when the user says "auto-prevent", "auto-block", "auto-quarantine", "policy-driven response", "stop this 0-day now without me clicking through", or asks Raven to execute the Defend plan automatically when criteria are met. Every automatic action terminates at a tool oracle (𝒯) with mandatory approval-gate verification, references a real D3FEND Isolate / Evict / Harden technique id, and emits a tamper-evident audit trail.
The raven-zero-day-auto-prevent Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 146,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).
mkdir -p ~/.claude/skills/zero-day-auto-prevent curl -L https://claudskills.com/skills/zero-day-auto-prevent/SKILL.md \ -o ~/.claude/skills/zero-day-auto-prevent/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/zero-day-auto-prevent/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/zero-day-auto-prevent/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\zero-day-auto-prevent\SKILL.md on Windows. See the full install guide for step-by-step instructions.
Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →
The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.
For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.
SKILL.md from the source repository to ~/.claude/skills/zero-day-auto-prevent/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. raven-zero-day-auto-prevent is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at /learn/what-is-a-claude-skill/.If you reference this skill in a blog post, paper, or documentation, you can cite it as:
@misc{zero-day-auto-prevent-2026,
author = {daemon-blockint-tech},
title = {raven-zero-day-auto-prevent [Claude Code skill]},
year = {2026},
publisher = {ClaudSkills},
url = {https://claudskills.com/skills/zero-day-auto-prevent/}
}Grade A · scanned 2026-07-06 — free static scan against the OWASP Agentic Skills Top 10.
No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›
Browse all General skills in the ClaudSkills registry, or explore these other picks from the same category:
Part of Acreator Store — Adam Lankamer's AI tools: PerfectStudio · Ucaption · UTagger · AutoXPoster · TestYourSkills · AutomationFlows · Au Naturel · Telegram @acreatorstore
SKILL.md files, not affiliated with, endorsed by, or sponsored by Anthropic.