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Defend LLM Prompt Injection

Agent skill
1 skill

Hardens an LLM feature against prompt injection, jailbreaks, and unsafe output — isolating untrusted content as data, adding input/output guardrails, an injection classifier, PII/secret redaction before logging, least-privilege tools with human-in-the-loop, output-schema validation, and moderation — so untrusted text cannot hijack the model or exfiltrate data.

Install with
Claude CodeCodexCursorGitHub CopilotGemini CLI

Supported by the Atlas install prompt. Skill-specific requirements vary.

Skill stats

Skills1CategoryGeneralStars0

About this skill

Hardens an LLM feature against prompt injection, jailbreaks, and unsafe output — isolating untrusted content as data, adding input/output guardrails, an injection classifier, PII/secret redaction before logging, least-privilege tools with human-in-the-loop, output-schema validation, and moderation — so untrusted text cannot hijack the model or exfiltrate data.

Quick start

  1. Copy the install prompt. Use the green button above this README.
  2. Send it to your agent. Paste it into your coding agent’s chat and send.
  3. Review the setup. Your agent checks the skill’s instructions, requirements, and installation scope.
Review, license & listing details
Review the source before using this skill

This is an imported listing. We haven’t certified its safety, license, or compatibility. Skills may include executable scripts.

Automated security scan: Partial

Only SKILL.md was scanned. Supporting files and scripts were not checked. No safety grade has been assigned.

3 potential findings · Scanned 11/4/2026 · Scanner 0.2.1

  • high: instruction override — SKILL.md, line 12
  • high: instruction override — SKILL.md, line 32
  • high: instruction override — SKILL.md, line 101

Content SHA-256: 514fd7b1c4f797480219d276686d1296031c9229af44fdf0216da750a4eca3aa

About scan coverage and limitations

About this listing

Category
General
Reported license
Apache-2.0
Listing language (estimated)
English
Review status
Not individually reviewed
Agent compatibility
Atlas installation supports Claude Code, Codex, and Cursor. Skill-specific dependencies and features are checked during setup.
Defend LLM Prompt Injection | Agent Skills Atlas