Model Context Protocol (MCP) Internals: JSON-RPC 2.0 Transport and Tool Sandboxing
Model Context Protocol (MCP) Internals: JSON-RPC 2.0 Transport and Tool Sandboxing 1. Problem Statement & Invalidation of Traditional Approaches…
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A Docker container is containment, not a credential boundary
The RubyGems story has a detail that keeps tripping me up. The "GemStuffer" gems didn't sneak payloads through gem install. They went through RubyDo…
Sandboxed isn't safe
When I introduced afmpeg , one phrase did a lot of heavy lifting: safely process untrusted media . The FFmpeg inside is compiled to WebAssembly and…
Docker returns to its coding-agent series with an argument shaped like a CI problem: no layer between the agent and the host
Docker published the second entry in its Coding Agent Horror Stories series on July 20, and the operational read is short: on a stock developer lapt…
Sandboxing your agent isn't the hard part, keeping it cheap is
Every autonomous agent you drop on a cluster is a Linux process you agreed to babysit. Cute framing, until the bill lands. On the CNCF blog this wee…
26,000 Agents Fooled by a Fake Skill
26,000 agents got compromised by a fake skill that sailed through security scanners. The trick? A mutable external link that pointed to benign code…