Caveman MCP — Anwendungsfälle, Installieren & Live-Demo

Warum nutzen

Hauptfunktionen

Three intensity modes: Lite / Full / Ultra (+ Classical Chinese)
~65% average output-token savings (repo benchmarks)
Sub-skills: /caveman-commit, /caveman-review, /caveman-compress
Cross-platform: Claude Code, Cursor, Codex, Gemini, Windsurf, Cline, Copilot
Eval suite in-repo showing accuracy preserved, not just shorter

Live-Demo

In der Praxis

caveman-skill.replay ▶ bereit

0/0

Installieren

Wählen Sie Ihren Client

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

{
  "mcpServers": {
    "caveman-skill": {
      "command": "claude",
      "args": [
        "plugin",
        "marketplace",
        "add",
        "JuliusBrussee/caveman"
      ],
      "_inferred": false
    }
  }
}

Öffne Claude Desktop → Settings → Developer → Edit Config. Nach dem Speichern neu starten.

~/.cursor/mcp.json · .cursor/mcp.json

{
  "mcpServers": {
    "caveman-skill": {
      "command": "claude",
      "args": [
        "plugin",
        "marketplace",
        "add",
        "JuliusBrussee/caveman"
      ],
      "_inferred": false
    }
  }
}

Cursor nutzt das gleiche mcpServers-Schema wie Claude Desktop. Projektkonfiguration schlägt die globale.

VS Code → Cline → MCP Servers → Edit

{
  "mcpServers": {
    "caveman-skill": {
      "command": "claude",
      "args": [
        "plugin",
        "marketplace",
        "add",
        "JuliusBrussee/caveman"
      ],
      "_inferred": false
    }
  }
}

Klicken Sie auf das MCP-Servers-Symbol in der Cline-Seitenleiste, dann "Edit Configuration".

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "caveman-skill": {
      "command": "claude",
      "args": [
        "plugin",
        "marketplace",
        "add",
        "JuliusBrussee/caveman"
      ],
      "_inferred": false
    }
  }
}

Gleiche Struktur wie Claude Desktop. Windsurf neu starten zum Übernehmen.

~/.continue/config.json

{
  "mcpServers": [
    {
      "name": "caveman-skill",
      "command": "claude",
      "args": [
        "plugin",
        "marketplace",
        "add",
        "JuliusBrussee/caveman"
      ]
    }
  ]
}

Continue nutzt ein Array von Serverobjekten statt einer Map.

~/.config/zed/settings.json

{
  "context_servers": {
    "caveman-skill": {
      "command": {
        "path": "claude",
        "args": [
          "plugin",
          "marketplace",
          "add",
          "JuliusBrussee/caveman"
        ]
      }
    }
  }
}

In context_servers hinzufügen. Zed lädt beim Speichern neu.

claude mcp add caveman-skill -- claude plugin marketplace add JuliusBrussee/caveman

Einzeiler. Prüfen mit claude mcp list. Entfernen mit claude mcp remove.

Anwendungsfälle

Praxisnahe Nutzung: Caveman

Get crisp one-line commit messages for every patch

👤 Anyone tired of 8-paragraph AI-written commits ⏱ ~5 min beginner

Wann einsetzen: Claude writes a commit message, and it's a novel. You want it to say 'fix: off-by-one in pagination' and stop.

Voraussetzungen

Caveman plugin installed — claude plugin marketplace add JuliusBrussee/caveman && claude plugin install caveman@caveman

Ablauf

Commit with caveman-commit

/caveman-commit — write a commit message for the staged changes.✓ Kopiert

→ One-line conventional commit; no body unless genuinely needed
Ship a branch of small commits

For the 4 staged files, use /caveman-commit per file — atomic commits, one line each.✓ Kopiert

→ git log shows 4 short commits

Ergebnis: Readable git log; bisect-friendly commits.

Fallstricke

Lost nuance when a message should be longer (e.g. breaking changes) — Override per-commit: 'write the full version, not caveman, this is a breaking change'

Kombinieren mit: git · github

Review a PR with one-line actionable comments

👤 Reviewers (and reviewees who dislike AI walls of text) ⏱ ~15 min beginner

Wann einsetzen: You're doing a quick pass and want pointed nits, not lectures.

Ablauf

Run caveman-review

/caveman-review — go through the diff. One line per comment.✓ Kopiert

→ Inline comments read like 'rename x → userId for consistency with api/users.ts'
Escalate when needed

On the auth file specifically, switch off caveman for a full-length security review.✓ Kopiert

→ Long-form only where the stakes justify it

Ergebnis: Faster review cycles; reviewees don't dismiss comments as noise.

Fallstricke

One-liners miss nuance on architectural changes — Architectural changes aren't Caveman's job — use default mode for those

Kombinieren mit: github

Shrink CLAUDE.md and memory notes by 40–50% without losing intent

👤 Anyone whose CLAUDE.md grew past 5k tokens ⏱ ~10 min intermediate

Wann einsetzen: Your project memory is eating context every session and you know it could be tighter.

Ablauf

Compress in place

/caveman-compress CLAUDE.md — keep rules and facts, cut the prose.✓ Kopiert

→ File shrinks ~46%; no rule deleted
Audit the diff

Show the diff. Any rule that changed meaning?✓ Kopiert

→ Per-change verdict; rollbacks if intent drifted
Commit

/caveman-commit — single-line commit for the compression✓ Kopiert

→ 'chore: compress CLAUDE.md (-46%)'

Ergebnis: Same rules, half the tokens.

Fallstricke

Compression drops a subtle caveat — Always diff-review after compressing rule files; intent loss is the main risk

Kombinieren mit: filesystem

Kombinationen

Mit anderen MCPs für 10-fache Wirkung

caveman-skill + git

Terse commit workflow

Stage the change, then /caveman-commit, then git push.✓ Kopiert

caveman-skill + github

Caveman PR reviews at scale

For the 5 PRs in my review queue, /caveman-review each; post only actionable comments.✓ Kopiert

caveman-skill + claude-mem-skill

Shrink memory transcripts without losing decisions

/caveman-compress the claude-mem notes for this project; flag anything where meaning shifted.✓ Kopiert

Werkzeuge

Was dieses MCP bereitstellt

Werkzeug	Eingaben	Wann aufrufen	Kosten
/caveman	mode: Lite\|Full\|Ultra\|文言文	Toggle mode for the current task	free
/caveman-commit	staged diff (implicit)	At commit time; preserves staging	small model call
/caveman-review	PR diff	Quick review pass	small model call per file
/caveman-compress	file path	Shrink memory / rules files; diff-review before saving	small model call

Kosten & Limits

Was der Betrieb kostet

API-Kontingent: None
Tokens pro Aufruf: By design — negative; saves tokens
Kosten in €: Free (MIT)
Tipp: Use Ultra only on genuinely mechanical output (commits, tags); leave design discussions in default mode

Sicherheit

Rechte, Secrets, Reichweite

Credential-Speicherung: None

Datenabfluss: None — pure prompt shaping; no telemetry

Ultra mode can drop disclaimers and safety caveats. Don't use Ultra for legal, medical, or security advice output.

Fehlerbehebung

Häufige Fehler und Lösungen

Output still verbose after enabling Caveman

Most clients run Caveman per-turn; put /caveman Full at the top of each session or add it to CLAUDE.md

Prüfen: First reply should feel distinctly terse

Caveman-commit returns multi-paragraph body

Usually triggers when the diff is genuinely large or breaks API. For true one-liner, add '—force-oneline'.

Prüfen: Re-run with --force-oneline

Classical Chinese mode outputs garbled

Rare; usually a font / terminal issue, not the skill. Pipe to a file and open in an editor that supports CJK.

Alternativen

Caveman vs. andere

Alternative	Wann stattdessen	Kompromiss
System prompt with 'be terse'	You want it without a plugin	Inconsistent; Caveman's intensity levels + benchmarks give measurable results
Custom slash commands	You only need one of the sub-behaviors (e.g. terse commits)	Reinventing the wheel

Mehr

Ressourcen

📖 Offizielle README auf GitHub lesen

🐙 Offene Issues ansehen

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