code_config

code_config reads and writes CLAUDE.md files — the instruction files that configure AI agent behavior for a project. It provides structured access to sections without loading the entire file, and saves changes to memory automatically.

Usage

code_config(action="sections")
code_config(action="read", section="Code Quality")
code_config(action="write", section="New Rule", content="Always validate inputs with Zod.")
code_config(action="append", section="Code Quality", content="- Prefer early returns over nested conditionals")

Parameters

Parameter	Type	Default	Description
action	"sections" | "read" | "write" | "append"	required	Operation to perform
section	string	—	Section heading to read or write
content	string	—	Content for write and append actions

Actions

Action	Description
sections	List all section headings in CLAUDE.md
read	Return the content of a specific section
write	Replace a section’s content
append	Add content to the end of a section

When to use

• Update project rules without reading and rewriting the full file
• Add a new rule discovered during a session
• Read a specific section of config without loading 8,000 tokens

Note

Changes made via code_config are automatically saved to code_memory, so the updated rules persist across sessions.