simonw / simonw/tools

Dangerous sys.exit(1) call

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Description

In python/extract_issues.py, an input such as {"range_spec": "invalid_revision..HEAD"} can lead to sys.exit(1). This can be dangerous if the tool is being integrated in a MCP server.

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start in python/extract_issues.py and trace how an invalid range_spec such as invalid_revision..HEAD is handled. Reproduce the case, then verify that handling the invalid input no longer terminates the host MCP server process; check any existing project tests if the file points to them.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
tooling
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Active
Clarity
Mostly clear
Newbie friendliness
52/100

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