Nexus-skills MCP — Сценарии использования, Установка & Живое демо

Зачем использовать

Ключевые функции

Persistent .nexus-map/ knowledge base per repo
File structure, dependency graph, import + call-site tracking
Change-impact radius queries
Incremental updates — re-run only on changed files
Tool-calling LLMs consume the map to answer precise questions
Works with Copilot, Cursor, Claude Code, and generic agents

Живое демо

Как выглядит на практике

nexus-skill.replay ▶ готово

0/0

Установка

Выберите клиент

~/Library/Application Support/Claude/claude_desktop_config.json · Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "nexus-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/Haaaiawd/Nexus-skills",
        "~/.claude/skills/Nexus-skills"
      ],
      "_inferred": true
    }
  }
}

Откройте Claude Desktop → Settings → Developer → Edit Config. Перезапустите после сохранения.

~/.cursor/mcp.json · .cursor/mcp.json

{
  "mcpServers": {
    "nexus-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/Haaaiawd/Nexus-skills",
        "~/.claude/skills/Nexus-skills"
      ],
      "_inferred": true
    }
  }
}

Cursor использует ту же схему mcpServers, что и Claude Desktop. Конфиг проекта приоритетнее глобального.

VS Code → Cline → MCP Servers → Edit

{
  "mcpServers": {
    "nexus-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/Haaaiawd/Nexus-skills",
        "~/.claude/skills/Nexus-skills"
      ],
      "_inferred": true
    }
  }
}

Щёлкните значок MCP Servers на боковой панели Cline, затем "Edit Configuration".

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "nexus-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/Haaaiawd/Nexus-skills",
        "~/.claude/skills/Nexus-skills"
      ],
      "_inferred": true
    }
  }
}

Тот же формат, что и Claude Desktop. Перезапустите Windsurf для применения.

~/.continue/config.json

{
  "mcpServers": [
    {
      "name": "nexus-skill",
      "command": "git",
      "args": [
        "clone",
        "https://github.com/Haaaiawd/Nexus-skills",
        "~/.claude/skills/Nexus-skills"
      ]
    }
  ]
}

Continue использует массив объектов серверов, а не map.

~/.config/zed/settings.json

{
  "context_servers": {
    "nexus-skill": {
      "command": {
        "path": "git",
        "args": [
          "clone",
          "https://github.com/Haaaiawd/Nexus-skills",
          "~/.claude/skills/Nexus-skills"
        ]
      }
    }
  }
}

Добавьте в context_servers. Zed перезагружается автоматически.

claude mcp add nexus-skill -- git clone https://github.com/Haaaiawd/Nexus-skills ~/.claude/skills/Nexus-skills

Однострочная команда. Проверить: claude mcp list. Удалить: claude mcp remove.

Сценарии использования

Реальные сценарии: Nexus-skills

How to onboard to an unfamiliar codebase fast

👤 Engineers joining a new team or team inheriting a codebase ⏱ ~60 min intermediate

Когда использовать: Day one in a repo you've never seen; you want a map before making changes.

Предварительные требования

Skill installed — git clone https://github.com/Haaaiawd/Nexus-skills ~/.claude/skills/nexus-skills

Поток

Build the map

Use nexus-skills to scan this repo and build .nexus-map/.✓ Скопировано

→ Progress output + map files produced
Get the tour

Using .nexus-map, tell me: entry points, top 10 most-imported modules, and any orphaned files.✓ Скопировано

→ Repo overview keyed to actual files
Dig into a subsystem

Show me the payments subsystem — files, dependencies, external calls.✓ Скопировано

→ Scoped subsystem view

Итог: A factual mental model of the repo built in under an hour.

Подводные камни

Map goes stale after big merges — Re-run nexus update; it's incremental

Check blast radius before changing a core function

👤 Engineers about to touch a widely-used utility ⏱ ~30 min intermediate

Когда использовать: You're about to rename or change the signature of a function and want to see every call site.

Предварительные требования

.nexus-map/ already built — Run once per repo; incremental after

Поток

Query impact

What calls formatCurrency(), and what would break if I change the signature to accept a locale?✓ Скопировано

→ Call-site list with each caller's likely break mode
Generate migration

Produce the minimal diff across all call sites to add the new locale param with a sensible default.✓ Скопировано

→ Multi-file patch

Итог: A change with known blast radius and a prepared diff.

Find dead code and unused exports

👤 Engineers cleaning up before a refactor ⏱ ~40 min intermediate

Когда использовать: Before a refactor you want to know what's truly unused.

Поток

Query map

Using .nexus-map, list files with no imports from elsewhere, and exports with no external references.✓ Скопировано

→ Ranked list with confidence per finding
Verify

For the top 10 candidates, double-check by searching for string-based usage (reflection, dynamic imports).✓ Скопировано

→ Filtered list with false-positive caveats

Итог: A dead-code delete list you can actually ship.

Подводные камни

Dynamic imports look dead statically — Always run the string-based sweep before deleting

Комбинации

Сочетайте с другими MCP — эффект x10

nexus-skill + claude-code-owasp-skill

Security-impact queries: where does tainted input flow?

Using nexus-map, trace every call path from the /ingest endpoint into the DB layer. Then OWASP review those paths.✓ Скопировано

Инструменты

Что предоставляет этот MCP

Инструмент	Входные данные	Когда вызывать	Стоимость
build_map	repo_root	Once per repo initially	compute (local)
update_map	changed_files	After large merges	compute (local)
query_structure	question	Answering structure questions	Claude tokens
change_impact	symbol or file	Before breaking changes	Claude tokens
dead_code	-	Pre-refactor cleanup	Claude tokens

Стоимость и лимиты

Во что обходится

Квота API: None
Токенов на вызов: Map build is local compute (fast); queries consume Claude tokens
Деньги: Free
Совет: Build once, query often. Re-build only when repo shape changes materially.

Безопасность

Права, секреты, радиус поражения

Хранение учётных данных: No credentials. .nexus-map/ is local by default.

Исходящий трафик: Map building is local. Querying sends map snippets to Claude.

Add .nexus-map/ to .gitignore unless your team agrees to share it — it's a detailed map of the codebase.

Устранение неполадок

Частые ошибки и исправления

Map build crashes on monorepos

Run per-package rather than on the root; nexus supports a scope flag

Queries return stale results after edits

Run nexus update on the changed files; incremental is cheap

Language not recognized

Check supported languages in nexus docs; some frameworks need explicit parser config

Альтернативы

Nexus-skills в сравнении

Альтернатива	Когда использовать	Компромисс
SourceGraph / Cody	You need hosted code intelligence at org scale	Paid; not local
tree-sitter + custom queries	You want full control	Much more build time

Ещё

Ресурсы

📖 Читать официальный README на GitHub

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