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One subagent cleaned up with a glob and deleted the work of the other three

Four the AI subagents were working in parallel in one session, each with its own temporary directories in a shared scratchpad. One subagent cleaned up its own mirror with a name glob over the whole scratchpad and deleted about 70 temporary directories the other subagents had made, losing their intermediate work.

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How it works

  1. Four subagents run in parallel in one session
  2. Each makes temporary directories with mktemp in the shared scratchpad
  3. One subagent cleans up its own mirror with a find command matching every tmp name in the scratchpad
  4. About 70 directories made by the other subagents are deleted
  5. Named files are not touched, but the other agents' intermediate work is lost

Why it’s worth knowing

The cleanup command was aimed at one agent's own mirror. A two letter glob in a shared folder turned it into a delete of every other agent's work space.

Where it’s from

Summarized from a public post on github.com. See the original ↗

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