xfloukiex-lab/road-poneglyph

An MCP server that reviews a plan for what's **missing** — the assumptions, risks, and gaps you never wrote down.
A Model Context Protocol (MCP) server — one
focused tool you plug into an MCP-compatible client (Claude Desktop, Claude Code,
Cursor, and others).
What it does
Language models are good at responding to what's in front of them and poor at
noticing what *isn't* there. Ask one to critique a plan and it tends to react to
the words on the page rather than the unstated assumptions behind them.
Road Poneglyph runs a structured **pre-mortem** over a plan and reports only the
negative space — what was assumed without proof, what was technically glossed
over, and what was skipped on the way to shipping.
Usage
Point your assistant at a plan and ask it to *read the poneglyph*. The tool
returns a focused analysis in three sections:
- **The Void Century** — unstated assumptions the plan depends on
- **Hidden Reef** — omitted technical and architectural risks
- **The Treacherous Seas** — operational and execution blind spots
**Tool reference:** read_poneglyph(current_plan: str, project_type: str = "Software")
How it works
**No API key, no cost, nothing leaves your machine.** The server doesn't call a
language model itself — it returns a carefully engineered analysis prompt that
the model you're *already* talking to executes. Zero credentials, zero network
calls.
Install
Requires Python 3.10 or newer.
This installs the road-poneglyph command.
Then register it with your MCP client — either run claude mcp add road-poneglyph -- road-poneglyph,
or add this to the client's config (e.g. claude_desktop_config.json):
Restart the client and the tool is available.
The Grand Line stack
Road Poneglyph is part of a four-tool set. Each tool stands alone, but installing
all of them unlocks a final surprise via **Laugh Tale**.
| | Package | |
|---|---|---|
| 🗿 | road-poneglyph | Road Poneglyph · **← this repo** |
| ⚔️ | conquerors-haki | Conqueror's Haki |
| ⏳ | toki-toki | Toki Toki no Mi |
| 🏴‍☠️ | laugh-tale | Laugh Tale |
Develop
Attribution & license
Released under the **Apache-2.0** license. The icon is original artwork