STOP REPEATING YOURSELF TO AI.
KOS keeps the context behind your work, so you don’t have to explain everything again. Pick up where you left off across sessions and supported AI tools.
Markdown-first · Provider-neutral · Obsidian-compatible
Keeps your context together
Context ends up scattered across sessions and tools
Decisions in old chats, requirements in documents, reasons only in your head. Each new AI session gets whichever pieces you remember to paste in.
- Chat threads
- Decisions and their reasons, hard to find a week later
- Documents
- Requirements that drift from what was agreed
- Repositories
- Constraints that only the code reveals
- Your memory
- Everything that never got written down
Return to a project where you left it
One week on a synthetic billing project. The decisions and handoff carry the work between sessions, whichever supported tool you open next.
- Monday
A decision is recorded
You and an AI tool settle the migration order. The decision goes into the project with its reason.
- Thursday
A new session starts informed
A different supported tool reads the brief, decisions, and last handoff before it suggests anything.
- Friday
The week ends with a handoff
What is done, what is open, and what comes next, written for whoever picks it up.
Your context stays in files you control
Plain Markdown
KOS context is Markdown on a filesystem you choose. Read it, edit it, back it up, and version it with the tools you already use.
Provider-neutral
The same maintained context works with supported AI tools. Changing tools doesn't mean starting your projects over.
Obsidian-compatible
You can open and edit KOS files in Obsidian. It is a compatible interface, not a requirement and not a partnership.
Local files don't guarantee local processing. An AI tool that reads your context may send it to its provider. Read the security boundaries
Start with the Starter Kit. Grow into Pro. Extend with Power-Ups.
All three build on KOS Core, the shared technical foundation. Core isn't an edition and isn't sold separately.
Give your AI the context it needs to work with you
Start with the free, open-source Starter Kit. Set up one project and see what changes in your next session.
Questions
KOS keeps your projects, knowledge, decisions, and workflows as durable context in Markdown files, so you can use that context with supported AI tools instead of rebuilding it each session.
No. KOS files are ordinary Markdown. Obsidian is a compatible interface for reading and editing them if you want one. KOS is not an Obsidian product or partner, and your setup may still need other software listed in the release prerequisites.
Yes. Starter Kit v1.2.0 is free and Apache-2.0 licensed. It installs KOS Community 1.0.0 using the Core 1.0.0 contract; Pro is not required.