Glitchless for DeepSeek Harness

Let your agent understand your players. Glitchless is game observability for coding agents. Your game sends how each play session went (frame times and what caused each hitch, errors, levels, where players quit, your own events), and your agent reads it: what's wrong this week, which error hits the most players, whether last night's build fixed the stutter on level 2.

This plugin adds Glitchless to DeepSeek Harness (DSH):

• 30 tools from the glitchless-mcp server, shown to the model as mcp__glitchless__*: ranked findings, frame times by level and device, errors, one session's timeline, your game's own events and funnels, bug reports players sent, store reviews and revenue, each game's dashboard, playtest bots, share links, and its alerts (which rules are on, the weekly summary, and findings you accept as known).
• 3 skills, also as slash commands:

Skill	What it does
glitchless-setup	Adds Glitchless to a game in Unity, Godot, Unreal, Three.js, Phaser, Babylon.js, PlayCanvas or GameMaker: the SDK, levels, events, bots, privacy settings
glitchless-dashboard	Works out what you want to know about your game, adds what's needed to measure it, and designs its dashboard
glitchless-triage	Finds the problem that hits the most players, fixes it, and checks the fix with the next version

Install

dsh plugin --profile web add glitchless-dsh

Restart DSH. Use --profile tui or --profile headless for those profiles. DSH runs the server with npx, so Node.js 22 or newer has to be on your PATH.

Sign in

Ask DSH to "sign in to Glitchless". It calls glitchless_sign_in, which shows a link and a code; approve the code in the Glitchless dashboard and the agent reaches every game in your workspace. No key goes in a config file: the server keeps a workspace key in ~/.config/glitchless/credentials.json, readable only by you, and npx -y glitchless-mcp logout deletes it. You need a Glitchless account, which is free to start. A new workspace has a demo game, so you can try it before your game sends anything.

Use it

Open DSH in your game's folder and say:

• "Set up Glitchless for my game" (the glitchless-setup skill)
• "What's wrong with my game this week?"
• "Build my game a dashboard: I want to know where players quit and which mode they play"

Tested with DSH 0.2.1-rc.5 and DeepSeek V4.1 Flash on macOS.

Permissions

The tools read your games' data and can create a game, save a game's dashboard and make or revoke read-only share links. They act as you, with your role in the workspace, and never delete data or touch billing or people. Settings → Keys & access in the dashboard lists and revokes the key. glitchless_playtest runs bots against a build on your computer, and the setup skill edits your game's code when you ask it to.

Self-hosted

Glitchless is open source, and its server runs on your own machine: docker run -p 7777:7777 -v glitchless-data:/data ghcr.io/glitchless-gg/glitchless. DSH doesn't pass keys from its own environment to MCP servers, so give the server's address and key to the glitchless-mcp row. Add this to the end of your profile's patch file, ~/.dsh/profiles/web/cordis.patch.yml (it replaces the row's whole config, so keep the other lines):

- id: glitchless-mcp
  config:
    serverName: glitchless
    transport: stdio
    command: npx
    args: ['-y', 'glitchless-mcp']
    cwd: !!js process.cwd()
    toolCallTimeoutMs: 600000
    failOnStartupError: false
    env:
      GLITCHLESS_URL: http://localhost:7777
      GLITCHLESS_API_KEY: gl_sk_…

Links

• glitchless.gg · Docs and source · Privacy · support@glitchless.gg
• The same skills for Claude Code, Codex, Cursor and Antigravity are in the Glitchless repo.

MIT licensed.