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open-coder-ai/refname-filename-metachar

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Refuses names a shell, CI step or git can misread. Paths a change adds or renames into (commit, agent writes), and branches and tags pushed (pre-push), with command substitution, an IFS expansion, a backtick, ; & | < >, a double quote, a backslash, a control or bidi character, a base64-decode shape, a leading dash or trailing space or dot in a segment, or a '..' segment; a ref also with a full commit id's shape. A guard refuses git and file commands creating such names. No waiver. Friction, not a boundary.