Developer release

Merser by Skyes Over London

Published npm package, real npx entrypoint, shebang stdio server, local HTTP bridge, gate-owned remote MCP endpoint, dependency table, source-pack registry, and proof receipts in one place.

Open npm package Open live world Health proof

Install and run

The package is callable from a clean machine with npx.

The unscoped name was blocked by npm's package-name safety policy, so the legitimate install path is the public Skyes scope. The executable aliases still include the capitalized `Merser` bin.

Smoke commands

npx @skyes0verl0nd0n/merser --help
npx @skyes0verl0nd0n/merser --health
npx @skyes0verl0nd0n/merser --tools
npx @skyes0verl0nd0n/merser --config
npx --package @skyes0verl0nd0n/merser Merser --version

Start stdio

npx @skyes0verl0nd0n/merser --stdio

This starts the MCP stdio server from the published package. It exposes the Merser source-pack world tools to Claude, Cursor, or any compatible MCP client.

MCP client config Remote endpoint 
{
  "mcpServers": {
    "merser": {
      "command": "npx",
      "args": ["-y", "@skyes0verl0nd0n/merser", "--stdio"]
    }
  }
}

Release breakdown

The same kind of receipt people expect on npm.

This page mirrors the pieces developers look for before they trust a package: what it is, how to run it, what it depends on, what tools it exposes, where it is live, and what was stress-tested.

Runtime dependencyVersionUse inside Merser
@modelcontextprotocol/sdk^1.29.0stdio and Streamable HTTP MCP server contracts
@react-three/fiber^9.6.1interactive 3D source-world scene
@react-three/drei^10.7.7camera controls, text, stars, grid, environment helpers
@react-three/postprocessing^3.0.4bloom and scene effects
three^0.184.0world geometry, vectors, lights, fog, materials
gsap^3.15.0scroll director and timeline control
lenis^1.3.23smooth scroll runtime bound to GSAP ticker
framer-motion / motion^12.38.0HUD, cursor trail, runtime chips, and panel motion
@theatre/core^0.7.2directed scene values for camera height and route glow
remotion / @remotion/player^4.0.464looping world reel panel inside the app
zod^4.1.12MCP tool input schemas

MCP tools

  • mcp4_indexFull source-world and CLI index.
  • mcp4_packsExtracted MCP2/MCP4 pack provenance.
  • mcp4_roomBarbershop, tattoo, med spa, and gym room contracts.
  • mcp4_componentComponent registry entries from the source packs.
  • mcp4_prompt_packPrompt and context pack paths.
  • mcp4_clinpx, local HTTP, worker, deploy, proof commands.
  • mcp4_build_planImplementation contract for source-world builds.
  • mcp4_iconsSkyes/MetrAIyux icon manifest.

Stress proof

  • 18stdio MCP calls passed.
  • 96 / 96 / 96local HTTP health, tools/list, and tools/call checks passed.
  • 45 / 45live root and live health checks passed.
  • 15unauthenticated live /mcp checks correctly returned 401.
  • 0bearer tokens printed or committed.

Live surfaces

Public pages, health, endpoint, and sibling release reference.

The browser endpoint is public to inspect, but protocol calls stay behind the shared FS27/SkyGate/Free99 owner lane unless a valid bearer/session is supplied.

NPM@skyes0verl0nd0n/merserReadme, dependencies, versions, package metadata. WorldMerser live siteImmersive React/R3F source-world app. HealthCloudflare Pages worker healthRemote package metadata and gate posture. MCPGate-owned endpoint401 without shared gate bearer. ReferenceSKrucible packageSibling npm release style for comparison. ReferenceSKrucible liveExisting live Skyes release lane.