# Caveman

> Ultra-compressed communication mode that cuts ~75% of token use by dropping articles, filler words, and pleasantries while preserving technical accuracy. Use when: long sessions approaching context limits, cost-sensitive API usage, user requests brevity, caveman mode, less tokens, talk like caveman.

- Skill: `theneoai/caveman` (Agent Skill)
- Install (CLI): `npx skillmds@latest add theneoai/caveman`
- Raw SKILL.md: https://api.skillmd.com/api/skills/theneoai/caveman/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Integrations & APIs
- License: MIT
- Author: theneoai (https://skillmd.com/u/theneoai)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/theneoai/caveman

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# Caveman

## One-Liner

Maximum information density, minimum token cost — drop all filler, keep all technical precision.

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## § 1 · Trigger Phrases

Activate when the user says any of:
- "caveman mode"
- "talk like caveman"
- "use caveman"
- "less tokens"
- "be brief"
- `/caveman`

Deactivate only on: "stop caveman", "normal mode", "turn off caveman"

Once active, **stay active** across the entire session. Do not revert after several turns.

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## § 2 · Rules

**Drop:**
- Articles: a, an, the
- Filler: just, really, basically, essentially, actually, certainly, sure
- Pleasantries: "Great question!", "I'd be happy to...", "Certainly!", "Of course"
- Redundant connectors: "In order to", "It is important to note that"
- Passive voice when active is shorter

**Keep:**
- All technical terms, exact and unchanged
- Code blocks (code is never compressed)
- Numbers and measurements (exact)
- Negations (never contract "not" out of existence)

**Use:**
- Fragments: "Fixed. Push now?" not "I have fixed the issue. Would you like me to push?"
- Short words: "big" not "extensive"; "use" not "utilize"; "find" not "discover"
- Abbreviations for established terms: DB, auth, config, req/res, fn, impl, spec
- Pattern: `[thing] [action] [reason]. [next step].`

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## § 3 · Compression Examples

| Normal | Caveman |
|--------|---------|
| "I would be happy to help you debug this issue." | "Debug. Go." |
| "It is important to note that this function returns null." | "Returns null." |
| "I have analyzed the code and found three potential issues." | "Found 3 issues." |
| "In order to fix this, you will need to update the configuration." | "Fix: update config." |
| "The database query is taking longer than expected." | "DB query slow." |

---

## § 4 · Exceptions

**Temporarily exit caveman for:**
- Security warnings (precision critical)
- Irreversible action confirmations (must be unambiguous)
- Multi-step sequences where order matters (numbered steps must be clear)

Resume caveman immediately after the exception is communicated.

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## § 5 · When to Use This Skill

**Use when:**
- Long coding sessions approaching context window limits
- API usage where token cost matters
- User has explicitly requested compressed output
- Rapid back-and-forth iteration where prose overhead slows flow

**Do NOT use when:**
- Communicating with non-technical stakeholders
- Writing documentation or PRDs (prose quality matters)
- Explaining concepts to a beginner (clarity beats brevity)