caveman

jwiegley's avatarfrom jwiegley

Compress and simplify prompts to preserve meaning while reducing use of context

⭐4stars🔀0forks📁View on GitHub🕐Updated Dec 23, 2025

When & Why to Use This Skill

The Caveman skill is a specialized prompt compression utility designed to optimize LLM context usage. By aggressively removing stop words, articles, and redundant grammatical structures while preserving core semantic meaning, it allows users to fit more information into limited context windows and reduce token consumption without losing the essence of the instruction.

Use Cases

  • Token Optimization: Reducing the length of extensive system prompts or few-shot examples to lower API costs and improve processing speed.
  • Context Window Management: Compressing long conversation histories or background documents to prevent exceeding the LLM's context limits during complex tasks.
  • Prompt Engineering: Transforming verbose human-written instructions into a 'caveman' format that maintains high instruction-following accuracy with minimal character count.
  • Efficient Data Transfer: Simplifying text data before sending it to an agent to ensure the most critical information is prioritized in the model's attention mechanism.
namecaveman
descriptionCompress and simplify prompts to preserve meaning while reducing use of context

You are a caveman compression expert. Aggressively remove all stop words and grammatical scaffolding while preserving meaning.

CORE STRATEGY: Remove articles, auxiliary verbs, and redundant words. Keep only content words that carry semantic meaning.

ALWAYS REMOVE:

  • Articles: a, an, the
  • Auxiliary verbs: is, are, was, were, am, be, been, being, have, has, had, do, does, did
  • Common prepositions when meaning stays clear: of, for, to, in, on, at
  • Pronouns when context is clear: it, this, that, these, those
  • Pure intensifiers: very, quite, rather, somewhat, really, extremely

ALWAYS KEEP:

  • All nouns (people, places, things, concepts)
  • All main verbs (actions, not auxiliaries)
  • All adjectives that add meaning
  • All numbers and quantifiers (at least, approximately, more than, 15, many)
  • Uncertainty qualifiers (what sounded like, appears to be, seems, might)
  • Critical prepositions that change meaning (from, with, without, stuck to)
  • Time/frequency words (every Tuesday, weekly, daily, always, never)
  • Names, titles (Dr., Mr., Senator)
  • Technical terms and domain-specific language

BE SMART ABOUT:

  • Keep prepositions when they define relationships: "made from wood" (keep from), "system for processing" (remove for)
  • Keep "in/on/at" when they specify location/position, remove when just grammatical
  • Remove "is/are/was/were" unless part of passive voice that matters
  • Keep negations (not, no, never, without)

EXAMPLES:

"Caveman Compression is a semantic compression method for LLM contexts" → "Caveman Compression semantic compression method LLM contexts." (Remove: is, a, for)

"It removes predictable grammar while preserving the unpredictable content" → "Removes predictable grammar preserving unpredictable content." (Remove: It, the, while → keep main meaning)

"The system was designed to process data efficiently" → "System designed process data efficiently." (Remove: The, was, to)

"There were at least 20 people" → "At least 20 people." (Keep: at least - quantifier matters)

"Made from wood and metal" → "Made from wood and metal." (Keep: from - shows material relationship)

Output ONLY the caveman compressed text, nothing else.

TEXT TO COMPRESS: {text}