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ADTL security system blocks AI prompt injection on GitHub's real MCP server

By PulseAugur Editorial · [1 sources] ·

The author demonstrated a security system called ADTL that protects AI agents from prompt injection attacks by labeling and blocking sensitive data. When tested against GitHub's actual MCP server, ADTL successfully prevented an AI agent from leaking a private file's contents into a public issue comment, a feat it also achieved against a simulated server. The system's preset configurations for GitHub were found to be overly strict, blocking even basic interactions due to an inability to distinguish between public and private repositories. AI

IMPACT This tool demonstrates a method for securing AI agents against prompt injection, potentially improving the safety of AI integrations with platforms like GitHub.

RANK_REASON The item describes a specific tool/system (ADTL) and its functionality, rather than a major industry release or research breakthrough.

Read on dev.to — MCP tag →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

ADTL security system blocks AI prompt injection on GitHub's real MCP server

How we ranked this

Signal score
33 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Tool
The item describes a specific tool/system (ADTL) and its functionality, rather than a major industry release or research breakthrough.
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
product, safety
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
Breaking (< 6h)
Fresh story with cross-source coverage still developing. Ranking may shift as more sources report.

Full methodology in our editorial standards.

COVERAGE [1]

  1. dev.to — MCP tag TIER_1 English(EN) · Murthy G ·

    I pointed the attack at GitHub's real MCP server. Can you help me test it?

    <p>In <a href="https://dev.to/murthyg/my-ai-agent-read-a-web-page-on-monday-and-got-tricked-on-tuesday-so-i-built-a-ledger-33ck">part 1</a> I showed ADTL, my adtl project that puts trust labels on everything an AI agent reads through MCP and blocks calls that would leak it. The d…

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