Running `start_debugging` tool in VS Code Insiders does not return and agents keep waiting indefinitely.
Nobody has claimed this yet.
Assessment
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Newbie friendliness
- 42/100
- Issue type
- Bug
- Clarity
- Mostly clear
- Activity status
- Quiet
- Tech stack
- csharp, typescript, vscode
- Domain
- devtools, testing-qa
Research direction
Start by reproducing the reported flow in VS Code Insiders with a C# xUnit project: run add_breakpoint, then call start_debugging with the shown fileFullPath, workingDirectory, and testName inputs. Trace the start_debugging entry point and capture where the call stops returning; done means the tool returns a result instead of leaving the agent waiting indefinitely.
Written by the indexing model from the issue text.
Description
This happens specifically when trying to debug a specific C# xUnit test using VS Code Insiders and GitHub Copilot.
How to reproduce:
- Ask the GitHub Copilot agent to place a breakpoint and start debugging a specific test in a C# xUnit project using VS Code Insiders.
- The agent successfully runs
add_breakpointtool. - The agent makes a tool call to
start_debuggingusing input like that:
{
"fileFullPath": "/path/to/project/test.cs",
"workingDirectory": "/path/to/project",
"testName": "Test_Should_Do_Something"
}
- The agent keeps waiting indefinitely for the tool call to return any results.
- Dominant language
- TypeScript
- Stars
- 511
- Forks
- 60
- Avg merge
- 2d 1h
- Merged PRs (30d)
- 18
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
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