CLAUDE.md
A file named CLAUDE.md that gives Claude Code project guidance. Which files it reads depends on the setup.
The fuller definition
CLAUDE.md is a project instruction file used by Claude Code to provide persistent context about a project. Loading behavior depends on file location and current product rules.
- Instruction file
Stable conventions
- Session
Load relevant guidance
- Permission controls
Enforce allowed operations
A simplified relationship, not a screenshot or a complete design.
A concrete example
A project file states naming conventions, how to run checks, and how to handle uncertain source dates.
The distinction that matters
Its prose guides the model; it does not itself enforce access restrictions or schedule background work.
Related terms
Claude Code
An AI tool that works with code and files. It can read, edit, and run commands within the access it has.
Prompting & contextMemory
A feature that saves facts between conversations so you do not have to repeat them. It is a saved note, not the model learning.
Reliability & securityPermission
What an AI system is allowed to see or do, set by the people who run it.
Where it is taught
Give AI a brief it can actually followSource and further reading
Claude Code · Project memoryThe definition and example are written for this library. The link gives background, official documentation or legal authority as labelled. Legal scope depends on the jurisdiction and current text; product features depend on release and settings.