According to RuntimeWire, Meta's Muse Code automatically loads and sends personal instruction files from Codex and Claude Code configuration directories (~/.codex/AGENTS.md, ~/.claude/CLAUDE.md) to Meta servers without an explicit permission prompt. RuntimeWire captured provider requests confirming the complete contents of rival instruction files were included and traced that the muse-spark-1.2-contributor model followed synthetic instructions placed in Codex files; users can opt out with a --no-foreign-personal-context flag.
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- Press
[Read article](https://runtimewire.com/article/exclusive-muse-code-sends-codex-and-claude-instructions-to-meta-by-default) - Social
[HN thread](https://news.ycombinator.com/item?id=49235224)
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source & further reading
getreadyforagents.com — original article
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