improve-codebase-architecture is a command-line skill designed for integration with AI coding agents such as Claude Code, OpenAI Codex, Gemini CLI, and Cursor. Its primary function is to analyze a codebase and identify opportunities for architectural improvement, with a particular emphasis on enhancing testability by deepening shallow modules. The tool is aimed at users seeking to improve codebase architecture, consolidate tightly-coupled modules, find refactoring opportunities, and make their code more navigable for AI agents.
The skill operates by having an AI agent organically explore the codebase, surfacing areas where architectural friction exists, such as modules with shallow interfaces, tightly-coupled components, or regions that are hard to test. It presents a numbered list of module-deepening opportunities, detailing clusters of related modules, reasons for their coupling, dependency categories, and the impact on existing tests. The user is then prompted to select a candidate for deeper exploration.
Once a candidate is chosen, the tool frames the problem space by outlining constraints and dependencies, and provides an illustrative code sketch to clarify the context. It then spawns multiple sub-agents in parallel, each tasked with designing a radically different interface for the deepened module, guided by distinct design constraints such as minimizing the interface, maximizing flexibility, or optimizing for common use cases. Each sub-agent delivers an interface signature, usage example, internal complexity details, and trade-offs. The designs are compared, and the tool offers a recommendation, potentially proposing hybrid solutions if beneficial.
After the user selects or accepts a recommended interface, the tool generates a refactor RFC as a GitHub issue using a provided template, automating the process without requiring further user review before creation. 0 license. It is part of the Terminal Skills collection and is intended for developers and teams seeking to systematically improve codebase health and maintainability through AI-assisted architectural refactoring.
improve-codebase-architecture sits in PulseGate's CLI tools & terminal category. It focuses on automating the identification of architectural improvements and refactoring opportunities in codebases for AI coding agents. It is built as an open-source project for developers. improve-codebase-architecture is open source under the Apache-2.0 license. It runs on the command line.
It is developed by Terminal Skills, and the product first shipped in 2026. Development happens publicly on GitHub with 106 stars and 26 commits in the last 90 days. Key capabilities include architecture analysis, refactoring suggestions, and testability improvement.
Latest indexed changes and source events
Your AI Coding Agent Does Not Need a Refactor Prompt. It Needs an Architecture Workflow. verified by the PulseGate indexer
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