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sulabhdubey

astra-fable-styleguide-mcp

by sulabhdubey
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TypeScript
Remote

Astra + Fable Style Constitution

Two independent design agents. One governed design standard. Available to humans and machines through MCP.

Architecture

Astra + Fable Style Constitution turns design rules into a versioned, machine-readable contract. Two provider-independent agent roles propose and critique changes; deterministic checks resolve measurable questions; exact candidate hashes prevent fake consensus; humans retain release authority by default.

What it gives you

  • A canonical StyleSpec under /spec.

  • Independent Astra/Fable proposal and cross-review workflow, including an optional one-call product-brief-to-candidate path.

  • Deterministic token, accessibility, component, and governance checks.

  • MCP resources and tools for coding agents.

  • Generated CSS, JSON, and TypeScript artifacts.

  • A human documentation site.

  • Audit-friendly decisions and proposal records.

Related MCP server: eds-mcp-server

Quick verification without external dependencies

The repository includes a dependency-light verification path for the core engine:

npm run verify:core

The full connected build uses pnpm and installs the official MCP SDK, Astro, Zod, ESLint, and TypeScript:

pnpm install
pnpm verify

Production MCP

The production adapter targets MCP 2026-07-28 via the official v2 TypeScript packages and createMcpHandler. The public endpoint is read-oriented by default. Write/release workflows remain governance-gated. When explicitly enabled, generate_style_constitution_candidate can invoke configurable OpenAI/Anthropic-backed roles from a product brief; generated candidates still require exact-hash approvals. The optional release tool is separately disabled by default and requires a distinct human-held approval credential.

Project contract

This server cannot be deployed

One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

Maintenance

ActivityMaintained
ResponsivenessNo issues

Resources

Related MCP Connectors

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