Description Craft
Diagnose and rewrite a SKILL.md frontmatter description so Claude reliably triggers the skill at the right moment. Use when a skill fails to trigger, triggers on the wrong tasks, or when writing a new skill and asking "is this description good". Returns a diagnosis, a rewritten description, and why the rewrite fires better.
Karpathy Coding
Behavioral overlay for coding tasks — surface assumptions, keep code minimal, make surgical changes, define verifiable success criteria. Use when writing, editing, refactoring, debugging, or implementing code. Activates Karpathy's four LLM-pitfall gates on every coding turn. Biases toward caution over speed. Skips for trivial edits.
Simplicity Audit
Review code for premature abstraction, speculative features, and over-engineering. Use when the user asks "is this overcomplicated", "simplify this", "does this need all these layers", "review for over-engineering", "flatten this", or pastes a file asking for a complexity review. Returns a complexity ratio, flagged patterns, and a flattened rewrite for the worst offender.
Goal Criteria
Transform a vague task into verifiable success criteria with a checkable plan. Use when the user says "define success", "what should I check", "how do I know it works", "how do I test this", or hands over a loose imperative like "fix the auth system", "make it faster", or "clean this up". Returns a plan where each step pairs with a verification method, plus a rollback criterion.
Surgical Diff
Review a code diff for scope creep, drive-by changes, and style drift. Use when the user pastes a diff, asks "review this diff", "did I change too much", "is this change surgical", or wants to audit an AI-generated patch before merging. Returns flagged lines, scope analysis, a minimal-diff proposal, and a verdict.
Skill Graph
Map how multiple SKILL.md files interact, conflict, or compose. Use when the user pastes a list of skills, a skills directory structure, or asks to audit a skill collection for redundancy, trigger-keyword overlap, or composition gaps. Returns a conflict matrix, redundancy flags, and recommended merges or splits.
Token Budget Check
Pre-flight check a prompt, message, or instruction for token cost and waste before it is sent. Use when the user asks to check, estimate, pre-flight, size-up, or budget a prompt before sending. Returns an estimated token count, a waste breakdown, and a ranked list of cuts with a proposed lean rewrite.
Vixero Council
Convene a 6-lens council (correctness, adversary, maintainer, performance, integration, contrarian) with a judge that synthesizes a verdict. Use when the user says "convene council", "council review", "review from all angles", or needs multi-lens review before a high-stakes commit. Returns lens findings, surfaced disagreements, minority report, verdict with calibrated confidence.
Assumption Surface
Extract hidden assumptions from a task request before any work begins. Use when the user says "before you start", "think this through", "what would you assume", "what am I missing", "is this clear enough to build", or when a one-line request triggers multiple implementation choices. Returns ranked assumptions by blast radius, minimum questions to proceed, and candidate interpretations.
Skill Compress
Rewrite a verbose SKILL.md or prompt into its lean equivalent without changing behavior. Use when the user asks to compress, shrink, tighten, minify, rewrite-lean, or optimize the token count of a skill or prompt. Preserves triggers, output format, and hard rules. Reports before/after token counts.
Token Audit
Score a SKILL.md, prompt, or system message for token waste. Use when the user asks to audit, measure, benchmark, score, or evaluate token efficiency of a skill, prompt, or agent instruction. Returns a 0-100 score, six-axis breakdown, and ranked specific cuts with token-savings estimates.
Lean Response
Activate lean response mode for the current conversation. Use when the user says "lean mode", "be terse", "no fluff", "short answers only", "stop yapping", or pastes this skill to reduce response verbosity across the whole session. Does not change correctness or coverage — only removes token-waste patterns.