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Diagnosis · Code

dev

Local development guide for the Happy monorepo.

Examining code for the line that is wrong

Works with
ClaudeChatGPTGeminiClaude CodeCodexCursorCopilotGemini CLI
Setup
Upload one file
About a minute in Claude. One command in coding tools.
Contains
Instructions only
Text files — no scripts or programs.
Maintained
Last change 4 Oct 2026
On the repository’s main branch.

What it does

Happy is a pnpm monorepo. Everything uses pnpm workspaces — do not use npm or yarn directly.

When your AI uses it

Use when the user types /dev, asks how to "build", "start dev", "install locally", or "run the ___ package"

You don’t need to name it. Ask for the job in your own words — your AI loads the skill when the request matches.

What it can touch

  • No script files in its folder

    Its folder holds text, not programs — but the instructions do tell your AI to run commands (see below).

    How we know

    Listed the one file in the skill’s folder on GitHub; none is a script or program.

  • Installs other software

    Following it will install packages (npm, pip, brew or similar). Those come from their own publishers, not from this skill.

    How we know

    The SKILL.md contains package-install commands.

  • 2 smaller things worth knowing

    Contains commands that delete or overwrite; Removes macOS download protection from a file. Usually legitimate — listed so nothing is hidden.

    How we know

    Contains commands that delete or overwrite — SKILL.md line 132; Removes macOS download protection from a file — SKILL.md line 139. Read 2026-10-05, commit dafe9a5.

    SKILL.md, line 132 ↗SKILL.md, line 139 ↗
  • No serious risk pattern found

    Launch7’s automated check read all 1 text files in this skill and matched none of its serious risk patterns. This is not a guarantee: a check like this can miss new or disguised tricks, and the author can change the files after the check.

    How we know

    Read 2026-10-05, commit dafe9a5 by pipeline/trust/analyze.py — 40+ patterns for hidden text, prompt injection, downloads that run, credential access and more. It reads; it never runs the skill.

  • Recently maintained

    Its repository has had changes recently.

    How we know

    Last push to slopus/happy: 2026-10-04 (1 days before the scan).

Read automatically from the skill’s own files on GitHub on 5 Oct 2026. Launch7 does not run or manually review skills: this lists what the check saw, and nothing here means “safe”. How we check

Add it to your AI

Supported. Upload it once in Claude’s settings. Works on every plan, including Free.

  1. Built in your browser from the SKILL.md on GitHub — nothing passes through Launch7.

  2. In Claude, open Customize → Skills, press +, then Create skill → Upload a skill, and choose the .zip.

  3. Make sure code execution is switched on (Settings → Capabilities). Skills need it.

  4. Start a new chat and ask for the job in your own words — Claude picks the skill up when it fits.

How Claude does this: support.claude.com · checked 28 Sep 2026 · “Supported” means documented by the vendor; Launch7 has not run it end to end

  • control-flow

    Analyze and design control flows and data structures.

    slopusInstructions only
  • maintain

    Maintain the slopus/happy open source project.

    slopusInstalls other software
  • metrics-graphana

    Query and manage Grafana dashboards and Prometheus metrics for Happy infrastructure.

    slopusInstalls other software
  • sessions

    Search and ask questions about coding agent session history across Claude Code, Codex, and Cursor.

    slopusIncludes 4 scripts
  • terminal-emulator

    Test interactive CLI/TUI applications using @microsoft/tui-test.

    slopusInstalls other software