What's New in 2.0.0?

• /debug Skill - DebugMCP now ships a companion Agent Skill that is auto-installed into each configured harness's personal skills directory (e.g. ~/.copilot/skills/debug/). Invoke it with /debug in supporting agents to load the systematic debugging workflow and trigger DebugMCP tools with the right context.

• Robust debugging via the VS Code Testing API - start_debugging with a testName now uses the VS Code Testing API to discover and launch the test, replacing the previous best-effort path. This works reliably across language test runners that integrate with the Testing API (pytest, Jest/Vitest, Java, .NET, Go, etc.) and produces consistent breakpoint hits inside individual test cases.

• Hardening security guardrails to prevent unauthenticated debugger access.