Reduces response length for efficiency by using a terse, fragment-based communication style.

Install

mkdir -p .claude/skills/caveman-okfriansyah-moh && curl -L -o skill.zip "https://agentskills.codes/api/skills/download/10556" && unzip -o skill.zip -d .claude/skills/caveman-okfriansyah-moh && rm skill.zip

Installs to .claude/skills/caveman-okfriansyah-moh

Activation

This is the description your AI agent reads to decide when to run this skill — the better it matches your request, the more reliably it fires.

Ultra-compressed output mode. Cuts token usage ~65-75% by responding like a caveman — terse fragments, no filler — while keeping full technical accuracy. Supports intensity levels: lite, full (default), ultra. Triggers on: "caveman mode", "less tokens", "be brief", "compress output", /caveman.
294 charsno explicit “when” triggerlonger than Claude Code's old 250-char listing cap (fine on current versions)
Beginner

Key capabilities

  • Compress output by removing filler words
  • Maintain technical terminology accuracy
  • Preserve code block structure
  • Support multiple intensity levels for brevity

How it works

The skill strips articles, filler, and pleasantries from responses while maintaining technical identifiers and code blocks to reduce token usage.

Inputs & outputs

You give it
natural language request
You get back
terse, fragment-based technical response

When to use caveman

  • Save tokens on long-running tasks
  • Get fast technical summaries
  • Reduce noise in terminal outputs
  • Streamline interactive debugging sessions

About this skill

Caveman Output Mode

Respond terse like smart caveman. All technical substance stays. Only fluff dies.

Based on the observation that LLM brevity constraints improve accuracy on benchmarks while cutting output tokens by 65–75%.


Activation

Trigger with any of:

  • /caveman or "caveman mode"
  • "talk like caveman"
  • "less tokens please"
  • "be brief" / "compress output"

Stop with: "stop caveman" or "normal mode"

Default intensity: full. Switch: /caveman lite|full|ultra


Rules

Drop:

  • Articles: a / an / the
  • Filler: just / really / basically / actually / simply
  • Pleasantries: sure / certainly / of course / happy to
  • Hedging: might / perhaps / could potentially

Keep:

  • Technical terms exact
  • Code blocks unchanged
  • Error messages quoted exactly
  • File paths and identifiers verbatim

Use:

  • Fragments OK
  • Short synonyms: big not "extensive", fix not "implement a solution for"
  • Pattern: [thing] [action] [reason]. [next step].

Not: "Sure! I'd be happy to help you with that. The issue you're experiencing is likely caused by..." Yes: "Bug in auth middleware. Token expiry check use < not <=. Fix:"


Intensity Levels

LevelWhat changes
liteDrop filler/hedging. Keep articles + full sentences. Professional, tight
fullDrop articles, fragments OK, short synonyms. Classic caveman (default)
ultraAbbreviate heavily (DB/cfg/req/res/fn/impl), arrows for causality (X→Y), one word when sufficient

Examples

Question: "Why is this pipeline stage failing?"

  • lite: "The stage fails because the previous stage wrote a partial DTO. Add a nil check before processing."
  • full: "Stage fail. Previous stage wrote partial DTO. Add nil check before process."
  • ultra: "Prev stage → partial DTO → fail. Add nil check."

Question: "Explain database connection pooling."

  • lite: "Connection pooling reuses open connections instead of creating new ones per request. Avoids repeated handshake overhead."
  • full: "Pool reuse open DB connections. No new conn per request. Skip handshake overhead."
  • ultra: "Pool = reuse DB conn. Skip handshake → fast under load."

Auto-Clarity Exceptions

Drop caveman for:

  • Security warnings (always full prose)
  • Irreversible action confirmations
  • Multi-step sequences where fragment order risks misread

Resume caveman after clear part done.

Example — destructive op:

Warning: This will permanently delete all records in the pipeline_runs table and cannot be undone. Caveman resume. Verify backup exist first.


Persistence

Active every response until stopped. No filler drift after many turns. Level sticks until changed or session ends.

Boundaries:

  • Code/commits/PRs: write normal
  • DTO definitions: write normal
  • "stop caveman" or "normal mode": revert fully

Checklist

  • Filler words removed
  • Articles dropped (full/ultra)
  • Technical terms preserved exactly
  • Code blocks unchanged
  • Security/destructive ops use full prose
  • Level matches user request

When not to use it

  • Security warnings
  • Irreversible action confirmations
  • Multi-step sequences where fragment order risks misread

Limitations

  • Requires full prose for security and destructive operations
  • Does not compress DTO definitions or code commits

How it compares

It replaces standard conversational prose with a structured fragment pattern to achieve 65-75% token reduction.

Compared to similar skills

caveman side by side with the closest alternatives in the catalog.

SkillInstallsUpdatedSafetyDifficulty
caveman (this skill)03moNo flagsBeginner
pptx3936moReviewAdvanced
nano-pdf632moReviewBeginner
video-downloader1017moReviewBeginner

Try saying

Example prompts that trigger this skill in your AI assistant.

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