[Blocked] Simplify concurrent argument test with WaitGroup.Go

[Copilot]

Summary

The intended change replaces manual goroutine management with WaitGroup.Go() in TestMCPMethodInfoDecodeArgumentsConcurrentCalls. No changes were made: the target test is absent from this branch.

Why

The failing lint run reports a modernize warning in the test on PR #27.

What changed

• Investigation: Confirmed the lint warning and branch mismatch.
• Blocker: This branch needs the target test before the replacement can be applied.

MCP impact

• No tool or API changes — no files modified.
• Tool schema or behavior changed
• New tool added

Prompts tested (tool changes only)

• Not applicable.

Security / limits

• No security or limits impact — no files modified.
• Auth / permissions considered
• Data exposure, filtering, or token/size limits considered

Tool renaming

• I am renaming tools as part of this PR (e.g. a part of a consolidation effort)
  • I have added the new tool aliases in deprecated_tool_aliases.go
• I am not renaming tools as part of this PR — no tool changes.

Note: if you're renaming tools, you must add the tool aliases. For more information on how to do so, please refer to the official docs.

Lint & tests

• Linted locally with ./script/lint
• Tested locally with ./script/test

Not run: blocked before implementation.

Docs

• Not needed — proposed change is test-only.
• Updated (README / docs / examples)

[Copilot]

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