Go MCP server that wraps the last30days Python engine for Claude Desktop. Packaged as a .mcpb bundle (drag-drop install into Claude Desktop).
The MCP server exposes a single research tool that mirrors the /last30days <topic> slash command available in Claude Code. At runtime the binary extracts the vendored Python engine into a per-user cache and shells out to python3 to produce the synthesis input Claude renders.
cmd/last30days-pp-mcp/- server entry pointinternal/engine/-embed.FSof the Python engine + cache extractor + subprocess wrapperinternal/tools/- MCP tool handlers (currentlyresearch)internal/engine/vendored/- mirror ofskills/last30days/scripts/, generated byscripts/sync-engine.sh(gitignored). Lives inside the engine package because//go:embedcannot reach files outside its own package directory.manifest.json- MCPB v0.3 manifest consumed by Claude Desktop andprinting-press bundle
# Mirror the Python engine into vendored/.
bash scripts/sync-engine.sh
# Build for the current host.
go build -ldflags "-X main.Version=dev" -o build/last30days-pp-mcp ./cmd/last30days-pp-mcp
# Package as a .mcpb (requires the printing-press binary on PATH).
printing-press bundle . --skip-build --binary build/last30days-pp-mcpThe output .mcpb lands at build/last30days-pp-mcp-<os>-<arch>.mcpb. Drag it into Claude Desktop's Extensions panel to install.
End users need Python 3.12+. The bundle ships the engine source but relies on the host interpreter and does not install Python. By default the server looks up python3 on PATH; set LAST30DAYS_PYTHON to an explicit Python executable when the default lookup is not suitable.
MCP research denies browser-cookie access by default by passing --no-browser-cookies. Set LAST30DAYS_MCP_ALLOW_BROWSER_COOKIES to 1, true, yes, or on (case-insensitive) to remove that MCP-layer denial. Empty, false, unset, and unrecognized values keep the denial in place. Enabling this variable does not create consent: browser-cookie use still requires the engine's separately recorded consent and configuration.
The research tool passes --research-only, so topics such as setup remain research queries and cannot invoke administrative commands. Preflight and research resolve save destinations through the engine's --resolve-save-dir query, including trusted .env configuration. Set save=false to suppress research file saves.
The MCPB manifest.json version is hand-bumped in the same PR that ships engine changes worth releasing. Release CI stamps the Go binary's main.Version from the tag.