Overview
OPENCNTX is a local-first tool for keeping project knowledge and giving AI only the context it needs. It is intended to avoid explaining a project from scratch in every new AI conversation, by keeping useful knowledge locally, selecting context for one task, and retaining a clear place to resume. The project describes three places with clear jobs: a local workspace for context, sources, decisions, skills, agent instructions, technical knowledge, evidence and roadmaps; GitHub as a recommended remote copy for selected files and version history; and a notes app as a readable view for explanations, linked knowledge, progress and roadmaps.
OPENCNTX packages and verifies files. The current release also provides a local knowledge layer for hierarchical sources, full-text search, typed links, explainable results, technique memory, safe adoption and provider-neutral footers. It does not run an AI or interpret chat intent. Installation requires Python 3.11–3.14, Git and pipx, and no account, API key or built-in model is required. Commands include opencntx init, opencntx pack -- preview, opencntx pack, and opencntx verify.
Users choose files in opencntx.toml and inspect .opencntx/latest/CONTEXT.md before sharing. Verification proves matching bytes, not truth or task success, and the user decides what leaves the computer. GitHub holds only committed and pushed files, and the notes app is a presentation layer, not a second OPENCNTX store.
Pricing
Free
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Use Cases
- Users use OPENCNTX to keep project knowledge locally and select context for one task.
- Users use OPENCNTX to package and verify files for AI context.
- Users use OPENCNTX to preview selected files and build a small context package.
- Users use OPENCNTX to record evidence and preserve the next step.
- Users use OPENCNTX to maintain a local knowledge layer with full-text search and typed links.
- Users use OPENCNTX to keep readable summaries and linked roadmaps in a notes app.
- Users use OPENCNTX to install a hash-verified release wheel with Python, Git and pipx.
- Users use OPENCNTX to choose files in opencntx.toml and inspect CONTEXT.md before sharing.
Features
AI assistant
Natural language interface
Workflow automation
Reviews
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FAQ
How does a context package work?
The site points to the How it works guide.
Which command or recovery route do I need?
The site points to Install or update, Commands, and Troubleshooting guides.
What is delivered versus planned?
The site points to Releases and Roadmap.