Manifold

Manifold is a macOS application designed to streamline working with large language models, giving users precise control over data access. Key features include: • Granular control over file and email visibility for each model • On-device PII redaction using Privacy Filter • Local storage of contextual file history and audit logs • Reusable context across different models and chat sessions • Open-source under Apache 2.0 license This tool allows users to select exactly what information each model (such as Claude or Codex) can access, be it specific files, messages, or entire folders and mailboxes governed by custom rules. All shared context, version history, and interaction logs are stored locally on your Mac, ensuring data privacy and portability without reliance on cloud services. This local-first approach means your work and data remain under your direct control, surviving across different models and future updates. Manifold is engineered for professionals who value data governance and efficiency in their interactions with large language models. It's ideal for developers, researchers, and content creators working with sensitive information or requiring consistent historical context without repetitive setup. The application facilitates a secure and organized environment for leveraging the capabilities of these models on your desktop.