Matt Brassey

Matt Brassey is an independent software publisher distributing open source tools through a public GitHub repository, with a catalog currently comprising a single package named agtop. This product is a process monitor purpose-built for AI coding agents, supporting popular tools in that category, including Claude Code, Codex, Aider, Gemini, and Goose. agtop fits within the system monitoring and developer tooling segment of the software market, a category traditionally represented by command-line utilities that display running processes, resource consumption, and activity states in a terminal interface. Where conventional monitors track general operating system processes, agtop applies the same concept to the emerging class of autonomous and semi-autonomous coding assistants, giving users visibility into the agents they have running during development sessions. Typical use cases include software engineers who operate multiple AI agents concurrently across projects and want a consolidated view of their status, teams experimenting with agent-driven workflows who need to observe agent behavior during execution, and developers managing resource usage or troubleshooting agents that stall, loop, or terminate unexpectedly. The tool is also relevant in exploratory and research contexts, where practitioners compare different coding agents side by side and benefit from a single monitoring surface that works uniformly across vendors. As a terminal-oriented utility distributed via GitHub, agtop follows the conventions of developer-focused open source software, targeting users comfortable with command-line environments and self-managed installation. With one package in its catalog, Matt Brassey's publishing activity is concentrated on this niche at the intersection of developer productivity and AI-assisted software engineering, addressing observability needs that arise as AI agents become a routine part of everyday programming workflows.