Contextual: explain your project once

Contextual is an open source context structure that gives Claude Code and Codex persistent memory of your project. Less guessing, less prompting, and code that fits the first time.

Stay tuned to the channel

Every session starts where the last one ended.

Contextual is a set of plain markdown files that live in your repo. A companion skill builds them from your codebase and keeps them current as you work.

01·Before every task
It reads first
It opens the build plan, features, setup steps and live status before touching code.
02·While it works
It works from facts
It answers from a reliable source, not a guess, so it hallucinates less.
03·After every task
It writes it down
It records what's done and what's next, so the next session picks up there.

Explain your project once.Your agent remembers the rest.

Every session starts where the last one ended.

It reads first

It works from facts

It writes it down