Installable, permission-bounded, multi-platform agent skills & subagents for Claude Code, Codex, Copilot & Gemini/Antigravity — 125 skills + 73 subagents across 18 departments, with a validation harness, native plugin marketplace, and full upstream attribution. by FluxonLab.
Skill Claude CodeCodex
Guided, section-by-section Art Bible authoring. Creates the visual identity specification that gates all asset production. Run after /brainstorm is approved and before /map-systems or any GDD authoring begins.
Skill Claude CodeCodex
Analyzes game balance data files, formulas, and configuration to identify outliers, broken progressions, degenerate strategies, and economy imbalances. Use after modifying any balance-related data or design. Use when user says 'balance report', 'check game balance', 'run a balance check'.
Skill Claude CodeCodex
Guided game concept ideation — from zero idea to a structured game concept document. Uses professional studio ideation techniques, player psychology frameworks, and structured creative exploration.
Skill Claude CodeCodex
Performs an architectural and quality code review on a specified file or set of files. Checks for coding standard compliance, architectural pattern adherence, SOLID principles, testability, and performance concerns.
Skill Claude CodeCodex
Reviews a game design document for completeness, internal consistency, implementability, and adherence to project design standards. Run this before handing a design document to programmers.
Skill Claude CodeCodex
Estimates task effort by analyzing complexity, dependencies, historical velocity, and risk factors. Produces a structured estimate with confidence levels.