detecting-indirect-prompt-injection SKILL.md skillF
detecting-indirect-prompt-injection from adriannoes/awesome-agentic-ai is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add adriannoes/awesome-agentic-ai/detecting-indirect-prompt-injection@v1.0Pins v1.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- F, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- adriannoes/awesome-agentic-ai
- Path
cursor-claude-codex/skills/anthropic-cybersecurity-skills/skills/detecting-indirect-prompt-injection/SKILL.md- Versions recorded
- 1
- Latest version
- v1.0, committed Jun 25, 2026
- Size
- 10,786 bytes
- Repository stars
- 69
- License
- MIT
Detect and defend against prompt injection hidden in documents, web pages, and images consumed by an agent.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Detecting Indirect Prompt Injection > **Authorized-use-only notice:** Scripts in this skill scan untrusted content for injection payloads and run detector models. Run scanning only on data you are authorized to process, and treat any extracted payloads as live untrusted input — never paste them back into a privileged LLM context. ## Overview Indirect prompt injection (MITRE ATLAS **AML.T0051.001**, OWASP **LLM01:2025**) occurs when an LLM-powered agent ingests external content — a web page it browses, a PDF or email it summarizes, an image it OCRs, a tool result it reads — and that content contains hidden instructions the model then follows as if they came from the developer or user. Because the agent treats *all* tokens in its context window as equally authoritative, an attacker who controls any consumed artifact can hijack the agent's behavior: exfiltrate conversation history, redirect tool calls, leak secrets, or pivot through connected systems. …
Read the whole file at its exact version.
How to install
mdr add adriannoes/awesome-agentic-ai/detecting-indirect-prompt-injection@sha256:5d3ff2354f45e2c1The line at the top of this page pins the label v1.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_bv7g5aqvpxaun6s7)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jun 25, 2026.
Audit of the latest version
- FAIL, critical: No zero-width or bidi control characters (matched: )
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (10786 bytes)
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
adriannoes/awesome-agentic-ai · 69 stars · license MIT · pushed 2026-10-10 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_bv7g5aqvpxaun6s7 GET https://markdownregistry.com/api/v1/resolve?ref=adriannoes/awesome-agentic-ai/detecting-indirect-prompt-injection GET https://markdownregistry.com/api/v1/blob/5d3ff2354f45e2c1012c6af8105c6588b501bfd05c564d9027ea853bfad2c5bf
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.