# Claude Code users, change this setting if you use subagents.

*Published on: Sat, 10 Oct 2026 09:56:53 GMT*

Claude Code users, change this setting if you use subagents.

Claude has prompt caching with a 1-hour TTL, but that’s only for the main agent. Subagents get just 5 minutes by default.

If you use long-running subagents, I recommend increasing their cache TTL to 1 hour.

Just add this to ~/.claude/settings.json:

"subagentPromptCacheTtl": "1h"

Not sure why this isn’t the default.

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