diagnosing-mcp

85 / 100 · Low risk

Fine to try.

By asgeirtj/system_prompts_leaks (GitHub) · coding · 71,387 stars · scanned at commit 2209631

Use to diagnose and fix ZCode MCP (Model Context Protocol) server configuration problems in the ZCode client. Applies when an MCP server will not connect, its tools (mcp__server__tool) do not appear, it shows as disabled or failed, connections time out, a command cannot be found, template variables are not expanded, or a server defined in a configuration file has no effect. Provides configuration locations, how to inspect status in Settings, common pitfalls, and a step-by-step localization and …

Works with any agent that supports SKILL.md skills.

What this skill can do

Downloads and installs other software

The author does not mention this.

Found in 3 places.

GLM/skills/diagnosing-mcp/SKILL.md, line 46"command": "npx",
GLM/skills/diagnosing-mcp/SKILL.md, line 742. **`command not found`** — the server shows `failed` with an error such as `spawn npx ENOENT`. The `command` is not on `PATH`, or a relative path was not reso
GLM/skills/diagnosing-mcp/SKILL.md, line 8614. **Settings → MCP crashes after JSON editing with `command.trim is not a function`** — the saved server has a non-string `command`, usually OpenCode-style `c

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'diagnosing-mcp' ] || [ -L ~/.agents/skills/'diagnosing-mcp' ]; then echo 'A skill folder named diagnosing-mcp already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/asgeirtj/system_prompts_leaks' "$d" && git -C "$d" checkout --quiet '2209631d6d3da737c22159ed03c5127734b187f3' -- 'GLM/skills/diagnosing-mcp' && mkdir -p ~/.agents/skills && cp -R "$d"/'GLM/skills/diagnosing-mcp' ~/.agents/skills/'diagnosing-mcp' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'diagnosing-mcp' ~/.claude/skills/'diagnosing-mcp' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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Score history

Date	Version	Score
2026-11-14	`2209631`	85
2026-11-10	`fc0108f`	85

Also found in

Identical copies of this skill exist at:

ZCodium-project/ZCodium/apps/zcode-cli/packages/zcode-guide-plugin/skills/diagnosing-mcp
zai-org/ZCode/apps/zcode-cli/packages/zcode-guide-plugin/skills/diagnosing-mcp