           0            20            40            60                                          empty.        project  : ______________________    author   : ______________________    version  : v0.1.0-draft    revised  : 2026.04.14    §        : mcp-contract      FIG 0 — TEMPLATE 

Plate 004 MCP Contract, 2026

JIB-004

MCP Contract

Project structure for non-trivial Claude extensions. v0.1.0-draft.

Medium: Specification
Year: 2026
Status: In progress
Availability: Free to install

§ Overview

MCP Contract is a project-structure template for Claude extensions past the single-file stage. Layers, manifest, contracts, a reference implementation. The v0.1.0-draft spec is in active revision.