Investigate why code was written a certain way. Use when tracing decision history through git blame, commit logs, PRs, and issues to understand the reasoning behind code changes.

Make better decisions using structured frameworks and mental models

Decision rules for Claude Code skills, scripts, MDs, and workflows - project-agnostic patterns

Systematic decision tree and epic generation through Socratic discovery

Fix build issues for matched functions in the Melee decompilation project. Use this skill when builds are failing due to header mismatches, signature issues, or caller updates needed after a function has been matched. Invoked with /decomp-fixup [function_name] or automatically when diagnosing build failures.

Break a phase into atomic beads and sub-beads for agent execution.

Break a goal into subgoals, constraints, and acceptance criteria. Use when planning complex work, creating work breakdown structures, or defining requirements.

Decomposition-reconstruction is a two-phase analytical technique: first, break a complex system into atomic components and understand their relationships; second, either recombine components in better

Decrypt MCP tokens for remote sessions

Manage global hiring and payroll with Deel's international workforce platform.

Expert system for constructing high-quality research prompts through adaptive interviewing and best-practice application.

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This skill enables GitHub repository documentation exploration using DeepWiki API directly via curl. Use when researching repository structure, understanding library APIs, or asking questions about open-source projects. MCP server not required.

DeepWiki MCP server for AI-powered GitHub repository documentation and

Implement mitigations, create input filters, design output guards, and build defensive prompting for LLM security

Production-grade defensive Bash scripting for server automation, monitoring, and DevOps tasks. Emphasizes safety, error handling, idempotency, and logging.

Integration expertise for major DeFi protocols including Uniswap, Aave, Compound, Chainlink, Curve, and Balancer. Supports swaps, liquidity provision, lending, borrowing, oracles, and flash loans.

Designs DeFi trading systems for perpetual futures, liquidity provision, and automated strategies with risk management and MEV protection.

'Create a BRAND_GUIDELINES.md that defines how to communicate with your customer. Requires CUSTOMER.md to exist first. Covers voice, tone, language rules, messaging framework, and copy patterns.'

Create well-defined issues (bugs, features, tasks) using Socratic questioning to eliminate ambiguity. Use when creating new Linear or Jira issues, when the user mentions Linear, Jira, or needs to define work items with proper acceptance criteria and relationships.

'Creates personalized X/Twitter growth strategy through guided interview. Based on algorithm-derived principles (exposure equation, phase model). Use when asked about X growth, Twitter strategy, building audience, or social media presence.'

Defines standard TypeScript interfaces for Appwrite Collections. Use when creating new models for Tours, Users, or Bookings to ensure full type safety.

Add custom actions and interactions to Plutonium resources

Delegate tasks to external LLM services (Gemini, Qwen) with quota, logging, and error handling.

Guidelines for safely deleting dictionary entries while properly updating indexes and cross-references.

Ensure artifacts, validation, and rollout readiness for handoff.

Book flights, manage SkyMiles, check flight status, and access Delta Air Lines services

Central skill registry for demeter project. Use to discover available skills, understand skill conventions, and find the right skill for a task.

do not use this skill

Domain-Driven Design patterns and architecture for Deno TypeScript applications. Use when building complex business logic, implementing bounded contexts, or structuring large-scale Deno applications with clear separation of concerns.

Check dependencies for known vulnerabilities using npm audit, pip-audit, etc. Use when package.json or requirements.txt changes, or before deployments. Alerts on vulnerable dependencies. Triggers on dependency file changes, deployment prep, security mentions.

Pattern for deprecating external dependencies while maintaining backward compatibility. Trigger: removing Java/FIJI/MATLAB, deprecating optional deps

Diagnose and heal dependency issues in ANY package manager, ANY language. Use when facing version conflicts, security vulnerabilities, or dependency bloat.

This skill helps evaluate whether a programming language dependency should be added to a project by analyzing multiple quality signals and risk factors.

Guide installation of project dependencies and toolchains. Use when a junior developer is stuck setting up the environment.

Manage project dependencies effectively. Use when adding, updating, or auditing dependencies. Covers version management, security scanning, and lockfiles.

Identifies dependencies between GitHub issues and creates appropriate cross-references. Use when you need to map issue relationships, find blockers, or organize work order based on dependencies.

Audit dependencies for licensing, security, and maintenance risk. Use when a senior developer needs risk assessment.

Scans project dependencies for known vulnerabilities, outdated packages, and license compliance issues. Supports vulnerability scanning (CVE detection), SBOM generation, license compliance checking, and supply chain security analysis across multiple ecosystems (npm, pip, cargo, go, maven, etc.). Trigger keywords: dependency scan, vulnerability, CVE, Snyk, Dependabot, Renovate, npm audit, cargo audit, pip-audit, safety, outdated packages, SBOM, software bill of materials, license compliance, supply chain, security advisory, transitive dependency, lock file.

Detect new imports in modified files and auto-install missing dependencies. Works with npm, uv, pip, cargo, go mod, and other package managers. Triggers after code implementation to keep manifests in sync.

Smart dependency management for any language. Auto-detects project type, applies safe updates automatically, prompts for major versions, diagnoses and fixes dependency issues.

Designs deployment strategies and configurations for applications

'Step-by-step plan for deploying a Next.js app to Vercel'

Deploy containerized applications to AWS ECS/Fargate. Use when deploying containers to AWS, managing ECS services, or setting up Fargate tasks. Covers task definitions and ECR.

Deploy to Cloudflare edge platform. Use when deploying static sites to Pages, serverless functions to Workers, or configuring CDN/DNS. Covers Wrangler CLI.

Deploys a component (frontend, backend, or landing) using SST. Use when deploying to AWS, pushing to dev or prod environments.

Guide user through actual deployment steps for their application. This skill should be used when a project is ready to deploy to production. Walks through pre-deployment checks, deployment execution, and post-deployment verification. Supports VPS/Docker, Cloudflare Pages, fly.io, and Hostinger Shared Hosting.

deploy-npm