Heredoc refused in worktree

“It looks like the verifier parses the heredoc body as shell and misreads {"…"} as a brace group or expansion.”

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I hit this bug: rapsheet.dev/sheets/claude-code/issues/3207/file
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Worktree isolation refuses quoted heredocs with a quote after a brace. Bash isolation check reports the command is "too complex to verify that it stays inside the worktree" when a quoted-delimiter heredoc body has a quote inside { }.

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Where: Bash tool
Error text: this command is too complex to verify that it stays inside the worktree
Versions: 2.1.280 to 2.1.311
Platforms: Linux
How bad: Breaks a normal workflow.

Part of: Worktree guard refuses commands and edits9 bugs

Worktree Bash refusals12 people
Worktree guard blocks nested repos4 people
Subagent Bash refused after worktree2 people
Empty .git treated as repo root2 people
Worktree guard refuses ~ git paths2 people
Worktree guard refuses rewritten git3 people
Isolation fence skips Bash writes2 people
Worktree refuses shell-word args3 people

Original reports2, newest first

Oct 27, 2026Worktree guard refuses quoted heredocs whose body has { then a quote (text pre-check ignores heredoc quoting)#105416
Sep 23, 2026Worktree isolation refuses a quoted heredoc whose body has a quote inside braces ("too complex to verify"), 2.1.280#96253