Expired50% confidenceFactTime unknown
Claude.md is automatically loaded at the start of every new Claude Code session and functions as a persistent system prompt mechanism
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026(expired)
Sources
The Complete Guide to Claude Code's Extension System: A Five-Layer Architecture That Doubles Development Efficiency
bilibiliAIAppWorks
Related Claims
Partially VerifiedClaude Code automatically loads CLAUDE.md in the current working directory and traverses upward to load parent directory configurations.78% similarUnverifiedClaude Code supports a CLAUDE.md file that is automatically loaded on every startup and treated as authoritative system rules with priority higher than prompts typed during conversation.77% similarUnverifiedClaude.md is a persistent instruction file that Cowork automatically reads first each time it begins a task in that folder.76% similar
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