tools-only/X-Skills - Page 31

debugger

Debugging specialist for errors, test failures, and unexpected behavior. Use when encountering issues, bugs, or failures that need root cause analysis.

clinical-research-session

Start a structured clinical research session. Use when users describe research goals, want to analyze cohorts, investigate hypotheses, or need a rigorous research plan. Interviews the user, then produces a research protocol.

m4-api

Use the M4 Python API to query clinical datasets programmatically. Use when writing code to access clinical databases, executing SQL via Python, or performing multi-step data analysis.

comorbidity-score

Calculate Charlson Comorbidity Index (CCI) and Elixhauser Comorbidity Index for hospital admissions. Use for risk adjustment, mortality prediction, case-mix analysis, or comparing comorbidity burden across patient populations.

apache-iv-score

Calculate APACHE IV (Acute Physiology and Chronic Health Evaluation IV) score for ICU mortality prediction. Use for severity assessment, hospital mortality prediction, ICU benchmarking, or case-mix adjustment. eICU has pre-computed scores; MIMIC-IV requires…

synth-api

Use the Synth AI SDK end-to-end for policy optimization (GEPA), graph optimization, eval, and inference

gemini

Send work to Gemini CLI in headless mode. Use when the user wants to run prompts, pipe content, or parse output through `gemini -p`.

codex

Send work to Codex CLI in non-interactive mode. Use when the user wants to run prompts, pipe content, or parse output through `codex exec`.

book-chapter-generator

This skill generates a structured chapter outline for intelligent textbooks by analyzing course descriptions, learning graphs, and concept dependencies. Use this skill after the learning graph has been created and before generating chapter content, to design…

microsim-generator

Creates interactive educational MicroSims using the best-matched JavaScript library (p5.js, Chart.js, Plotly, Mermaid, vis-network, vis-timeline, Leaflet, Venn.js). Analyzes user requirements to route to the appropriate visualization type and generates…

chapter-content-generator

This skill generates comprehensive chapter content for intelligent textbooks after the book-chapter-generator skill has created the chapter structure. Use this skill when a chapter index.md file exists with title, summary, and concept list, and detailed…

asking-clarifying-questions

Use after initial design context is gathered, before brainstorming - resolves contradictions in requirements, disambiguates terminology, clarifies scope boundaries, and verifies assumptions to prevent building the wrong solution

finishing-a-development-branch

Use when implementation is complete, all tests pass, and you need to decide how to integrate the work - guides completion of development work by presenting structured options for merge, PR, or cleanup

playwright-explorer

Use when exploring websites, proving hypotheses about web application behavior, automating browser interactions, or generating E2E tests - investigates page structure through accessibility snapshots, tests assumptions systematically, and coordinates…

project-claude-librarian

Use when completing development phases and project context files may need updating - analyzes what changed since phase start, identifies affected CLAUDE.md or AGENTS.md files, and coordinates updates to maintain accurate project documentation

using-plan-and-execute

Use when starting any conversation - establishes mandatory workflows for finding and using skills, including using Read tool before announcing usage, following brainstorming before coding, and creating task todos for checklists

swarm-task-planner

Creates dependency-based task plans for parallel AI agent execution. Transforms architecture docs and PRDs into priority-ordered tasks with acceptance criteria, sync checkpoints, and quality gates. Uses CLEAR+CoVe task design standards.

doing-a-simple-two-stage-fanout

Use when analyzing a large corpus of text, code, or data that exceeds a single agent's effective context - orchestrates parallel Worker subagents, Critic review subagents, and a final Summarizer subagent with task tracking and failure recovery

functional-core-imperative-shell

Use when writing or refactoring code, before creating files - enforces separation of pure business logic (Functional Core) from side effects (Imperative Shell) using FCIS pattern with mandatory file classification

requesting-code-review

Use when completing tasks, implementing major features, or before merging to verify work meets requirements - dispatches code-reviewer subagent, handles retries and timeouts, manages review-fix loop until zero issues

executing-an-implementation-plan

Use when executing implementation plans with independent tasks in the current session - dispatches fresh subagent for each task, reviews once per phase, loads phases just-in-time to minimize context usage

writing-design-plans

Use after brainstorming completes - writes validated designs to docs/design-plans/ with structured format and discrete implementation phases required for creating detailed implementation plans

investigating-a-codebase

Use when planning or designing features and need to understand current codebase state, find existing patterns, or verify assumptions about what exists; when design makes assumptions about file locations, structure, or existing code that need verification -…

coding-effectively

ALWAYS use this skill when writing or refactoring code. Includes context-dependent sub-skills to empower different coding styles across languages and runtimes.

starting-a-design-plan

Use when beginning any design process - orchestrates gathering context, clarifying requirements, brainstorming solutions, and documenting validated designs to create implementation-ready design documents

writing-implementation-plans

Use when design is complete and you need detailed implementation tasks for engineers with zero codebase context - creates comprehensive implementation plans with exact file paths, complete code examples, and verification steps assuming engineer has minimal…

brainstorming

Use when creating or developing anything, before writing code or implementation plans - refines rough ideas into fully-formed designs through structured Socratic questioning, alternative exploration, and incremental validation

writing-claude-directives

Use when writing instructions that guide Claude behavior - skills, CLAUDE.md files, agent prompts, system prompts. Covers token efficiency, compliance techniques, and discovery optimization.

code-reviewer

Reviews completed project steps against plans and enforces coding standards. Use when a numbered step from a plan is complete, a major feature is implemented, or before creating a PR. Validates plan alignment, code quality, test coverage, and architecture.…

task-bug-fixer

Fixes issues identified by code-reviewer and triggers re-review. Use when code-reviewer returns any issues that need to be addressed before merge approval.

task-implementor-fast

Implements individual tasks from plans with TDD, skill application, verification, and git commits. Use when executing a specific task that requires writing, modifying, or testing code as part of a larger plan.

remote-code-researcher

Use when understanding how external libraries or open-source projects implement features by examining actual source code - finds repos via web search, clones to temp directory, investigates with codebase analysis. Triggers: "how does library X implement Y",…

howto-code-in-typescript

Use when writing TypeScript code, reviewing TS implementations, or making decisions about type declarations, function styles, or naming conventions - comprehensive house style covering type vs interface rules, function declarations, FCIS integration,…

remembering

Advanced memory operations reference. Basic patterns (profile loading, simple recall/remember) are in project instructions. Consult this skill for background writes, memory versioning, complex queries, edge cases, session scoping, retention management,…

down-skilling

Distill Opus-level reasoning into optimized instructions for Haiku 4.5 (and Sonnet). Generates explicit, procedural prompts with n-shot examples that maximize smaller model performance on a given task. Use when user says "down-skill", "distill for Haiku",…

postiz

Use the Postiz CLI to publish posts (create, schedule, upload images) to any configured integrations.

bridge-js

Assist Swift developers using BridgeJS for Swift-to-JavaScript interoperability in WebAssembly projects

medchem

Medicinal chemistry filters. Apply drug-likeness rules (Lipinski, Veber), PAINS filters, structural alerts, complexity metrics, for compound prioritization and library filtering.

neuropixels-analysis

Neuropixels neural recording analysis. Load SpikeGLX/OpenEphys data, preprocess, motion correction, Kilosort4 spike sorting, quality metrics, Allen/IBL curation, AI-assisted visual analysis, for Neuropixels 1.0/2.0 extracellular electrophysiology. Use when…

iso-13485-certification

Comprehensive toolkit for preparing ISO 13485 certification documentation for medical device Quality Management Systems. Use when users need help with ISO 13485 QMS documentation, including (1) conducting gap analysis of existing documentation, (2) creating…