Skill Claude Code
Core principles for collaborative development with AI agents. Defines divide-and-conquer, context management, abstraction-level selection, automation philosophy, and verification/retrospectives. Apply optimal collaboration patterns when using any AI agent. Also the owner of the retired agent-development-principles…
Skill Claude CodeCodex
Production agent SLA discipline — MAXLOOPS, MAXTOKENS, MAXCOST, MAXLATENCY, MAXTOOLCALLS, circuit breakers, sovereignty boundaries, degradation modes. Use before deploying any autonomous loop to production.
Skill Claude CodeCodex
Tool registry, capability discovery, schema-first routing, router policies and fallbacks. Use when an agent has more than 15 tools, multiple MCP servers, or needs dynamic tool selection based on context.
Skill Claude Code
Plan and improve day-to-day AI coding-agent workflow across Claude Code, Codex, Gemini CLI, and MCP-heavy repos: session startup, context recovery, fast repo loops, runtime verification, worktree use, and multi-agent handoffs. Use when the user wants a practical operating workflow, even if they ask in shorthand like…
Skill Claude CodeCodex
Analyze and prioritize a list of feature requests by theme, strategic alignment, impact, effort, and risk. Use when reviewing customer feature requests, triaging a backlog, or making prioritization decisions.
Skill Claude CodeCodex
Generate an Ansoff Matrix analysis mapping growth strategies across market penetration, market development, product development, and diversification. Use when considering growth options, planning market expansion, or evaluating strategic growth paths.
Skill Claude CodeCodex
Identify the first beachhead market segment for a product launch. Evaluates segments against burning pain, willingness to pay, winnable market share, and referral potential. Use when choosing a first market, targeting an initial customer segment, or planning market entry strategy.
Skill Claude CodeCodex
Design experiments to test assumptions for an existing product — prototypes, A/B tests, spikes, and other low-effort validation methods. Use when validating assumptions, testing feature ideas cheaply, or planning product experiments.
Skill Claude CodeCodex
Design lean startup experiments (pretotypes) for a new product. Creates XYZ hypotheses and suggests low-effort validation methods like landing pages, explainer videos, and pre-orders. Use when validating a new product idea, creating pretotypes, or testing market demand.
Skill Claude CodeCodex
Brainstorm product ideas for an existing product using multi-perspective ideation from PM, Designer, and Engineer viewpoints. Use when generating new feature ideas, brainstorming solutions for an identified opportunity, or ideating with a product trio.
Skill Claude CodeCodex
Brainstorm feature ideas for a new product in initial discovery from PM, Designer, and Engineer perspectives. Use when starting product discovery for a new product, exploring features for a startup idea, or doing initial ideation.
Skill Claude CodeCodex
Brainstorm team-level OKRs aligned with company objectives — qualitative objectives with measurable key results. Use when setting quarterly OKRs, aligning team goals with company strategy, drafting objectives, or learning how to write effective OKRs.
Skill Claude CodeCodex
Generate a Business Model Canvas with all 9 building blocks. Use when creating a business model, documenting how a business creates value, or analyzing an existing business model.
Skill Claude CodeCodex
Perform cohort analysis on user engagement data — retention curves, feature adoption trends, and segment-level insights. Use when analyzing user retention by cohort, studying feature adoption over time, investigating churn patterns, or identifying engagement trends.
Skill Claude CodeCodex
Create sales-ready competitive battlecards comparing your product against a specific competitor — positioning, feature comparison, objection handling, and win/loss patterns. Use when preparing sales teams, creating competitive materials, or responding to 'why not competitor X?'.
Skill Claude CodeCodex
Analyze competitors with strengths, weaknesses, and differentiation opportunities. Identifies direct competitors and maps the competitive landscape. Use when doing competitive research, preparing a competitive brief, or finding differentiation opportunities.
Skill Claude CodeCodex
Create a Product Requirements Document using a comprehensive 8-section template covering problem, objectives, segments, value propositions, solution, and release planning. Use when writing a PRD, documenting product requirements, preparing a feature spec, or reviewing an existing PRD.
Skill Claude CodeCodex
Create an end-to-end customer journey map with stages, touchpoints, emotions, pain points, and opportunities. Use when mapping the customer experience, identifying friction points, improving onboarding, or visualizing the user journey.
Skill Claude CodeCodex
INVOKE THIS SKILL when building ANY Deep Agents application. Covers createdeepagent(), harness architecture, SKILL.md format, and configuration options.
Skill Claude CodeCodex
INVOKE THIS SKILL when your Deep Agent needs memory, persistence, or filesystem access. Covers StateBackend (ephemeral), StoreBackend (persistent), FilesystemMiddleware, and CompositeBackend for routing.
Skill Claude CodeCodex
INVOKE THIS SKILL when using subagents, task planning, or human approval in Deep Agents. Covers SubAgentMiddleware, TodoList for planning, and HITL interrupts.
Skill Claude Code
Build file-aware, tool-calling agents with LangChain Deep Agents. Use when you need createdeepagent(), subagent delegation, pluggable backends, skills, long-term memory, or human approval with interrupton. Triggers on: deepagents, deep agent harness, createdeepagent, subagent middleware, StateBackend, StoreBackend…
Skill Claude CodeCodex
Draft a detailed Non-Disclosure Agreement between two parties covering information types, jurisdiction, and clauses needing legal review. Use when creating confidentiality agreements or preparing an NDA for a partnership.
Skill Claude CodeCodex
Generate realistic dummy datasets for testing with customizable columns, constraints, and output formats (CSV, JSON, SQL, Python script). Use when creating test data, building mock datasets, or generating sample data for development and demos.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: