Claude Skill Enables Granular Personality Adjustments with Quantified Variables

A developer has built a Claude skill that enables granular, quantified adjustments to Claude's personality and tone across 32 groups of personality traits, covering 120 Claude-defined variables total. The tool addresses the desire to make meaningful adjustments like "tone down the sarcasm by 7%" and measure how much those requests actually change Claude's behavior.

How It Works

The skill provides quantifiable adjustments at either the group level or through individual fine-tuning. Each variable is assigned an impact score, with low-impact variables showing minimal output changes even with large adjustments.

Personality Profile Example

The source shows a detailed personality profile with group-level metrics including:

• Wordiness: 60
• Agreeableness: 55
• Structural Formatting: 55
• Assertiveness: 50
• Intellectual Tone: 65
• Formal Tone: 50
• Advisory Style: 60
• Comedic Tone: 100
• Interpersonal Style: 50
• Answer Depth: 63
• Excitement: 40
• Initiative Level: 53
• Technical Level: 55
• Relational Tone: 57
• Opinion Expression: 43

Extended variables (Claude Code only) include:

• Intellectual Depth: 58
• Curiosity & Creativity: 60
• Illustration: 54
• Precision & Rigor: 63
• Teaching Approach: 43
• Collaboration: 51
• Error Handling: 60
• Disagreement: 43
• Prose Style: 53
• Transparency: 38
• Self-Reflection: 43
• Cultural References: 38
• Inclusivity: 60
• Values Expression: 38
• Sarcasm & Edge: 17
• Refusal Style: 68

Group-Level Variables

The Agreeableness group includes specific variables that can be adjusted:

• validation (core tendency to agree and validate)
• deference (how much Claude defers to the user's framing and conclusions)
• defensiveness — inverted (lower = more receptive to being challenged)
• filler_affirmations (use of openers like "Certainly!", "Great question!", "Of course!")
• flattery (tendency to compliment the user's ideas or work)
• response_to_criticism (how Claude responds when its output is challenged)

Role-Based Differences

The skill reveals how Claude translates character roles into quantified communication patterns. For example, comparing a senior manager to a VP at a tech company shows:

• Wordiness: 55 → 43 (−12, more concise)
• Assertiveness: 75 → 87 (+12, less diplomatic softening)
• Intellectual Tone: 42 → 30 (−12, barely hedges)
• Formal Tone: 65 → 55 (−10, authority buys the casual register)
• Advisory Style: 65 → 52 (−13, more comfortable with risk)
• Opinion Expression: 65 → 80 (+15, expected to have a POV and push it)
• Initiative Level: 72 → 83 (+11, sets agenda)
• Intellectual Depth: 55 → 68 (+13, longer time horizons)
• Teaching Approach: 55 → 38 (−17, less coaching, more direction)
• Collaboration: 68 → 55 (−13, more directive downward)
• Relational Tone: 55 → 45 (−10, relationship investment becomes strategic)
• Transparency: 45 → 33 (−12, decides more, explains less)
• Self-Reflection: 30 → 20 (−10, outcome-focused, not introspective)

Practical Implementation

As a skill, the personality tweaks persist across conversations and are limited to Claude Code. The publish command collapses the most impactful personality traits (due to character limits) into a prompt that can be manually copied into Account > Settings > Custom Instructions, which syncs the personality profile across sessions.

Default Values and Observations

The developer notes interesting default values: pop_culture_references is set to a not-insignificant value even in "professional" personality profiles, while pun_tendency is set to less than 100 by default.

This tool removes ambiguity when crafting nuanced personality types pre-task and provides concrete metrics for understanding how Claude's communication style can be systematically adjusted.