Unverified50% confidenceFactExact time
Claude's custom instructions are an account-level global setting, not a conversation-level personal setting.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/11/2026
First Seen
Valid until: 1/9/2027
Sources
Related Entities
Related Claims
UnverifiedCustom instructions are a set of permanent rules that Claude automatically follows at the start of every new conversation, taking effect globally through the personal preferences field in settings.72% similarUnverifiedThe sub-agent mechanism in Claude Code can bypass the context window limit of a single conversation, allowing different sub-agents to focus on their respective responsibilities.70% similarUnverifiedClaude Code's cross-session communication feature is implemented at the application layer; what Claude sends to Claude is a summary message, and it is limited to within the Claude ecosystem.70% similarUnverifiedThe classifier can see the user's messages and Claude's tool calls, but cannot see Claude's reasoning process, Claude's replies to the user, or tool output results.69% similarUnverifiedBy default, chat and coding sessions of Claude Code Free, Pro, and Max plan users are used to improve the Claude model.68% similar
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