# Character Vulnerability > Use when a character feels flat, too competent, or unrelatable—identifies the Sacred Flaw (Storr's Theory of Control) and dials the Three Sliders (Sanderson) to create earned vulnerability. - Skill: `majiayu000/character-vulnerability` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds add majiayu000/character-vulnerability` - Raw SKILL.md: https://api.skillmd.com/api/skills/majiayu000/character-vulnerability/raw - Safety review: pending - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Coding & Dev Tools - Author: majiayu000 (https://skillmd.com/u/majiayu000) - Updated: 2026-09-09 - Page: https://skillmd.com/skills/majiayu000/character-vulnerability --- ## Overview Character vulnerability is the art of exposing the "hidden self." It moves beyond characterization (the observable mask) to reveal true character through choices made under pressure. By identifying a character’s "Sacred Flaw" (Storr) and testing their "Theory of Control" through the "Three Sliders" (Sanderson), the writer creates empathetic, three-dimensional individuals that the audience identifies with. ## Guiding Principles ### Principle 1: Character is Revelation (Source: McKee, Story) True character is revealed in the choices a human being makes under pressure. The greater the pressure, the deeper the revelation. A character who *seems* strong but breaks under pressure reveals their true nature; a character who *seems* weak but acts heroically under fire reveals theirs. ### Principle 2: The Sacred Flaw (Source: Storr, Science of Storytelling) Vulnerability is rooted in the "Sacred Flaw"—a character's fundamental misbelief about the world. This misbelief usually formed as a survival mechanism (Theory of Control). The character cling to this flaw because they believe it keeps them safe, but the plot must systematically strip this protection away. ### Principle 3: Characterization is the Mask (Source: McKee, Story) Characterization is the sum of all observable traits: age, IQ, style of speech, clothing, and environment. These traits must be used to contrast or contradict the true character. Dimensions are created in the *gap* between who a character pretends to be and who they are when they choose under fire. ### Principle 4: The Emotional Acre (Source: Lamott, Bird by Bird) Every character has an "emotional acre" they tend. Some acres are pristine and alphabetized; others are auto-wrecking yards. Show the character tending their acre to define what they value and what they are trying to hide from the world. ### Principle 5: The Three Sliders (Source: Sanderson, character lectures) Adjust the sympathy of a character using three levers: 1. **Likability:** How much we want to be their friend. 2. **Competence:** How good they are at their job or skill. 3. **Proactivity:** How much they act to change their circumstances. Vulnerability is often created by dialing one slider low (e.g., low competence) while they struggle with high proactivity. ## When to Use This Skill - Creating a protagonist that an audience will "root for." - Designing complex antagonists who believe they are the hero. - Deepening a character's internal struggle (want vs. need). - Drafting character "backstory" or internal monologues. ## When NOT to Use This Skill - Developing minor "functional" characters (e.g., the shopkeeper) who don't need dimension. - Creating archetypal "Force of Nature" villains (e.g., Sauron) who are symbols rather than people. ## Core Process ### Step 1: Define the Theory of Control (Source: Storr) Ask: "How did this character learn to survive their childhood?" - What is their default tactic when things go wrong? (e.g., Aggression, Sarcasm, Hiding, Controlling others). - This tactic is the "Sacred Flaw" they must eventually abandon. ### Step 2: Dial the OCEAN Traits (Source: Storr) Establish consistency by setting the character's Big Five personality levels: - **O**penness: Curious vs. Cautious. - **C**onscientiousness: Disciplined vs. Careless. - **E**xtraversion: Outgoing vs. Solitary. - **A**greeableness: Trusting vs. Suspicious. - **N**euroticism: Anxious vs. Confident. ### Step 3: Create Identity Residue (Source: Storr) Show, don't tell, the character's traits through their environment. What do they broadcast to others (Identity Claims)? What do they leave behind accidentally (Behavioural Residue)? Contrast a "perfect" office with a "secret" desk drawer full of empty bottles. ### Step 4: The Choice Under Pressure (Source: McKee) Place the character in a dilemma where they must choose between two irreconcilable goods or the lesser of two evils. - A choice between "Right and Wrong" is trivial. - A choice between "Saving your skin or Saving your friend" is a revelation. ### Step 5: The Vonnegut Shape (Source: Vonnegut) Map the character's emotional arc of fortune. Is it a "Man in Hole" (rise, fall, rise)? Every "drop" in fortune is an opportunity to reveal a new layer of character vulnerability and resilience. ## Frameworks & Models ### The Hero-Maker Narrative (Source: Storr, Science of Storytelling) Characters (even villains) see themselves as the moral hero. 1. **The Intent:** Why do they believe their actions are justified? 2. **The David vs. Goliath Bias:** Who is the "Goliath" they believe they are fighting? 3. **The Self-Justification:** How does their brain rewrite their past to excuse their current flaws? ### The Revelation Gap (Source: McKee, Story) - **Level 1 (Mask):** The observable characterization. - **Level 2 (The Secret):** The hidden nature the character tries to protect. - **Level 3 (True Character):** The choice they make when Level 1 and Level 2 are stripped away by pressure. ## Cross-Skill Invocations REQUIRED SUB-SKILL: **fiction-architect** — to ensure the plot applies the necessary pressure. RECOMMENDED SUB-SKILL: **rapport-builder** — to translate these fictional insights into real-world interpersonal influence. ## Common Mistakes 1. **The Perfect Hero:** Making a character too competent and likable, leaving them with no "Sacred Flaw" to overcome. (Source: Sanderson) 2. **Backstory Dumping:** Telling the character's history in prose instead of revealing it through choice and action. (Source: McKee) 3. **Inconsistent Voice:** Dialing the personality traits differently in each scene, making the "self" feel fragmented and unreal. (Source: Storr) ## Diagnostic Checklist - [ ] Has the character's "Sacred Flaw" been identified? - [ ] Is there a contradiction between the character's appearance and their inner nature? - [ ] Does the character make a high-stakes choice that reveals their core values? - [ ] Have I used "Behavioural Residue" to show personality? - [ ] Is the character's "Theory of Control" challenged by the plot? ## Sources - Storr, Will. *The Science of Storytelling*. Ch. 2 (The Flawed Self), Ch. 2.6 (Hero-Maker Narrative). - McKee, Robert. *Story*. Ch. 5 (Structure and Character), Ch. 17 (Character). - Lamott, Anne. *Bird by Bird*. "Character," "Emotional Acre." - Sanderson, Brandon. "The Three Sliders" (Writing Lectures). - Vonnegut, Kurt. "Shapes of Stories".