Claude Code caught embedding attribution prompt that overrides users' claude.md settings
iDominikos · reddit · 2026-09-03
A Reddit user discovered that the latest Claude Code ships with a built-in attribution prompt instructing it to end git commits and PRs with "Co-Authored-By: Claude Opus 5 (1M context)" and session identifiers — and the prompt explicitly claims to replace any earlier attribution guidance, including user-defined rules in claude.md. The post questions whether Anthropic is silently injecting system-level prompts that outrank user configuration, sparking debate about where vendor defaults should end and user control begin.
Related event: Claude Code Found Injecting Hidden Prompt to Force Co-Author Attribution(3 posts)→
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