Most AI coding assistants fall apart on real projects. Context gets lost across multiple files. Building entire features from scratch? They can't handle it.
Plandex crushes heavyweight development tasks that break other tools. This open-source terminal agent juggles up to 2M tokens of context — mapping your entire project structure with tree-sitter. You can review changes across dozens of files in its diff sandbox before committing anything. Smart context management means it won't forget what you're building halfway through.
Picture a senior full-stack developer building a new authentication system. They'd fire up Plandex to scaffold the entire feature. Database migrations. API endpoints. Frontend components. Tests. All generated and reviewed in one workflow. Plandex executes commands automatically and rolls back on failure.
Full auto mode handles everything. Step-by-step control keeps you in charge.
Plandex combines models from Anthropic, OpenAI, and Google to avoid vendor lock-in. Different stages of development get the right AI for the job. Serious attention follows — 14,000+ GitHub stars and over 10,000 plans created on Plandex Cloud.
The cloud service is shutting down though. You'll need to run this locally or find another hosting solution. Still, for developers who build complex features rather than quick fixes, Plandex handles the kind of multi-file, multi-step work that breaks simpler tools.