MCP: add system.log + system.info + viewer.shutdown#5997
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system.log returns the last N lines (default 100, capped at 1000) of the existing rotating-file spdlog output — opens the file fresh each call, no new sink. Lines come pre-formatted; LLM substring-matches `[error]` etc. client-side if it wants level filtering. system.info wraps the existing GetSystemInfoJson() (Version/OS/CPU/GPU/ memory/window). Json::Value -> nlohmann::json via StreamWriterBuilder. viewer.shutdown calls Viewer::stopEventLoop() so the MCP response can flush before the event loop exits on the next frame. Re-launch via the gateway's `launch` tool. system.runPython is intentionally not here — it'll land on the private MeshInspectorCode layer where access can be gated on user permission. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
adalisk-emikhaylov
approved these changes
Apr 27, 2026
Fedr
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Apr 27, 2026
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Follow-up to the merged scene/viewer/ui/tools MCP work (#5972, #5980, #5982, #5996). Adds two
system.*tools for host-environment observability and oneviewer.shutdownfor clean process exit.Tools
system.log({maxLines})— last N pre-formatted spdlog lines (default 100, cap 1000) from the existing rotating-file sink. Opens the file fresh each call; no new sink. Returns[]when file logging is disabled. LLM substring-matches[error]/[warn]client-side if it wants level filtering.system.info— snapshot ofMR::GetSystemInfoJson()(the same data behind the About dialog):Version,OS Version,CPU Info,Graphics Info,Memory Info,Window Info,Process Memory.Versionis prefixed with\"Debug:\"on Debug builds.viewer.shutdown— callsViewer::stopEventLoop()from the GUI thread; the MCP response flushes before the event loop exits next frame. The gateway's existinglaunchtool brings MI back up.system.runPythonis intentionally not in this PR — it'll land on the private MeshInspectorCode layer where access can be gated on user permission.Verification (live)
system.logdefault → 100 lines includingMCP server started on port 7887.system.log {maxLines:5}→ exactly 5 lines.system.info→{Version: \"Debug: Apr 24 2026\", OS Version: ..., CPU Info: ..., Graphics Info: ..., Memory Info: ..., Window Info: ..., Process Memory: ...}.viewer.shutdown→{}response delivered, MI process exits with code 0; the gateway'slaunchbrings it back.🤖 Generated with Claude Code