Meridian Skills MCP server

Meridian MCP

Dynamic task routing via orbital mechanics. Domain-agnostic — candidates can be tools, prompts, documents, products, or any routable entity.

Per request, an LLM (Llama-3.3-70B via GitHub Models' free tier) emits N candidate routing entries. A deterministic classifier extracts a 9-scalar physics signature from each candidate's content alone — no curated lookup: mass (log-scaled body length × keyword count), scope, independence, crossdomain affinity (token-domain entropy across three star systems), fragmentation, drag, depratio (max sibling Jaccard), lagrangepotential, coherencetime (g⁽¹⁾-style autocorrelation over the candidate's token stream — added in 3.1.0), plus orbital and optical parameters (semi-major axis, eccentricity, inclination, period, perihelion, aphelion, mean anomaly; wavelength, polarization, amplitude, phase). Six per-class scoring rules assign a celestial body class by argmax: planet, moon, trojan, asteroid, comet, or irregular.

The class-scoring rules:

score_planet    = min(mass, scope, independence)^1.5
score_moon      = 2 · max(0, ½ - independence) · 𝟙[parent] · (1 - mass/2)
score_trojan    = dep_ratio · 𝟙[parent] · (1 - fragmentation)
score_asteroid  = 2.5 · max(0, 0.55 - mass) · scope · independence
score_comet     = drag · cross_domain · (1 - dep_ratio)
score_irregular = 0.85 · cross_domain · fragmentation

class(p) = argmax_c score_c(p)

Output: a deterministically ranked list with route_score, full classification, and decision rule per candidate. Wire format: Model Context Protocol over stdio or Streamable HTTP. Stdio shim is ~5 KB. Tested with Claude Code, Cursor, Windsurf, Goose, Continue, Grok custom connectors, ChatGPT custom MCPs, and Claude.ai connectors.

3.0 — renamed from meridian-skills-mcp. The classifier was always domain-agnostic; the "skills" framing biased the LLM prompt toward AI-agent capabilities. v3 drops that framing across the prompt, code, branding, and npm name. Migration: npm i -g meridian-orbital (the old package is deprecated; both binaries are still named meridian-mcp / meridian-mcp-http so client configs keep working). The hosted HTTP MCP at mcp.ask-meridian.uk/mcp continues to work — URL unchanged.

Install (stdio — Claude Code / Cursor / Windsurf)

npm install -g meridian-orbital
claude mcp add meridian meridian-mcp

Same install works in Cursor, Windsurf, Goose, Continue, and any MCP client that speaks stdio.

You'll need a GitHub personal access token with the Models: read permission (free tier). Generate one at https://github.com/settings/personal-access-tokens/new and export it:

export MERIDIAN_GITHUB_TOKEN=github_pat_...

(The MCP also picks up plain GITHUB_TOKEN if you have one already in your environment.)

Use as a Grok connector

A hosted Streamable-HTTP variant lives at https://mcp.ask-meridian.uk/mcp with full OAuth 2.1 + PKCE so it slots into any host that requires a connector URL — Grok's custom MCP connectors, ChatGPT custom MCPs, Claude.ai connectors. No npm install, no PAT entry from your side, no infra.

In Grok's "Add custom connector" dialog, paste these:

Shortened. The full README is on GitHub.