Analyze Linux support archives (sosreport / supportconfig) for Azure VMs directly from VS Code Chat. This extension bundles the RCA Tool MCP server (supportfile_mcp) and the rca_cli analyzer and registers them with VS Code's Model Context Protocol integration, so the tools appear automatically in Agent mode.

What you get

Once installed, the server rca-tool is contributed automatically. In the Chat view (Agent mode), the following tools become available under rca-tool:

list_parsers — list the available detectors/parsers
analyze_archive — run the analyzer over a support archive
summarize_findings — produce a high-level summary of detected issues

Example prompt:

Summarize the findings in path/to/sosreport.tar.xz

How it works

The extension ships a platform-specific build of two native binaries under bin/:

supportfile_mcp — the stdio MCP server
rca_cli — the analyzer the server shells out to

On activation the extension registers an McpServerDefinitionProvider that launches supportfile_mcp over stdio and points it at the bundled rca_cli via the RCA_CLI_BIN environment variable.

Settings

Setting	Description
`rcaTool.mcpServerPath`	Absolute path to a `supportfile_mcp` binary to use instead of the bundled one.
`rcaTool.rcaCliPath`	Absolute path to an `rca_cli` binary to use instead of the bundled one.