| 1 | # last30days-pp-mcp |
| 2 | |
| 3 | Go MCP server that wraps the last30days Python engine for Claude Desktop. Packaged as a `.mcpb` bundle (drag-drop install into Claude Desktop). |
| 4 | |
| 5 | 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. |
| 6 | |
| 7 | ## Architecture |
| 8 | |
| 9 | - `cmd/last30days-pp-mcp/` - server entry point |
| 10 | - `internal/engine/` - `embed.FS` of the Python engine + cache extractor + subprocess wrapper |
| 11 | - `internal/tools/` - MCP tool handlers (currently `research`) |
| 12 | - `internal/engine/vendored/` - mirror of `skills/last30days/scripts/`, generated by `scripts/sync-engine.sh` (gitignored). Lives inside the engine package because `//go:embed` cannot reach files outside its own package directory. |
| 13 | - `manifest.json` - MCPB v0.3 manifest consumed by Claude Desktop and `printing-press bundle` |
| 14 | |
| 15 | ## Local build |
| 16 | |
| 17 | ```bash |
| 18 | # Mirror the Python engine into vendored/. |
| 19 | bash scripts/sync-engine.sh |
| 20 | |
| 21 | # Build for the current host. |
| 22 | go build -ldflags "-X main.Version=dev" -o build/last30days-pp-mcp ./cmd/last30days-pp-mcp |
| 23 | |
| 24 | # Package as a .mcpb (requires the printing-press binary on PATH). |
| 25 | printing-press bundle . --skip-build --binary build/last30days-pp-mcp |
| 26 | ``` |
| 27 | |
| 28 | The output `.mcpb` lands at `build/last30days-pp-mcp-<os>-<arch>.mcpb`. Drag it into Claude Desktop's Extensions panel to install. |
| 29 | |
| 30 | ## Runtime requirements |
| 31 | |
| 32 | End users need Python 3.12+ on PATH. The bundle ships the engine source but relies on the host interpreter. |
| 33 | |
| 34 | ## Versioning |
| 35 | |
| 36 | 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. |
| 37 |