By cmgramse
Core skills library for Claude Code: TDD, debugging, collaboration patterns, and proven techniques
You MUST use this before any creative work - creating features, building components, adding functionality, or modifying behavior. Explores user intent, requirements and design before implementation.
Use when facing 2+ independent tasks that can be worked on without shared state or sequential dependencies
Use when you have a written implementation plan to execute in a separate session with review checkpoints
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
Use when receiving code review feedback, before implementing suggestions, especially if feedback seems unclear or technically questionable - requires technical rigor and verification, not performative agreement or blind implementation
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This repository (skill-development) is the skill factory for iurFriend: the centralized environment where all Claude Code plugins are developed, tested, and refined. It is structured as a plugin marketplace (iurfriend-skills), but the primary activity is building and refining skills, not distributing them. Forward-going, marketplace-distributable skills ship as plugins (single- or multi-skill) per Anthropic's canonical shape.
First stop for anyone (AI or human) doing skill work — read these three before touching anything:
CLAUDE.md— the de-facto orientation doc: the full plugin catalog, plugin architecture, credential/contract/orchestrator doctrine, and the development workflow.PATTERNS.md— Layer-0 canonical index of every binding doctrine, principle, R-decision, and shared contract (routes to the sources in.agents/andconcepts/skills-ecosystem/).AGENTS.md— the Codex / Opencode parity entry-point; mirrors CLAUDE.md's catastrophic-invariant summary for non-Claude harnesses.The README below is the marketplace-facing front door. The canonical rules live in the three files above — this README orients, it does not govern.
25 marketplace plugins (plus the resident iurfriend-skill-patterns carrier, counted separately) across the marketing operating system and supporting web/management/observability tooling — brand extraction, funnel and conversion design, SEO, content creation, concept development, measurement and optimisation, site building/design/review/refactor, solution architecture, team and finance operations, data-collection engineering, creative media and podcast generation, voice, and LLM observability operators (LangFuse, MLflow).
Plus a vendored (third-party) tier — 18 vetted-external developer-tooling and productivity plugins imported for iurFriend employees (superpowers, beads, cloudflare, n8n-skills, supabase, obsidian-skills, defuddle, impeccable, extract-design, agent-browser, using-entire, frontmatter-generation, asana, and the official agent-sdk-dev / claude-code-setup / claude-md-management / feature-dev / mcp-server-dev). These are not factory-built: each is copied verbatim from a permissively-licensed upstream (MIT/Apache-2.0, or license flagged UNCONFIRMED), carries its LICENSE + UPSTREAM.md, and is listed in the auditable VENDORED.md register. The Anthropic docx/xlsx/pdf/pptx document skills are proprietary and not vendored; they are approved for install directly on iurFriend laptops — see EXTERNAL-PLUGINS.md (the companion register to VENDORED.md) for the exact install commands. Full vendored per-plugin catalog: the Vendored plugins section in CLAUDE.md.
For the authoritative, per-plugin catalog with one-line purposes, see the Plugins in This Marketplace table in CLAUDE.md. It is kept current; this README does not duplicate it.
Every top-level entry, one line each. Plugin directories are listed collectively (each is a self-contained plugin — see the canonical layout in CLAUDE.md § Plugin Architecture); the per-plugin catalog is in CLAUDE.md.
npx claudepluginhub cmgramse/skill-development --plugin superpowersMLflow GenAI observability and evaluation operator — onboarding, tracing instrumentation, trace/session analysis, agent evaluation, metrics, and docs search.
Local podcast studio — turns any source (topic, URL, PDF, markdown, repo) into a finished branded episode: research, multi-voice script, Gemini TTS, music mix, show notes, and cover image. Ships the podcast-studio orchestrator skill and a /podcast command. Brand-as-config via show profiles; decoupled from any cloud control plane.
Rendering presenter — brainstorms, selects, and renders the most impactful visualisations for producer artifacts or ad-hoc data into self-contained (or interactive) reports. Emits frontmatter-free presentation siblings under presentation-sibling-contract@1. A strict presenter: it represents data and producer-supplied interpretations, never computes new findings, scores, deltas, or verdicts.
Comprehensive feature development workflow with specialized agents for codebase exploration, architecture design, and quality review
Project bootstrap operating layer for Codex, Claude Code, and OpenCode: Beads setup, audit logging, AGENTS.md, CLAUDE.md, project rules, and orchestrator/executor/reviewer roles.
Core skills library for Claude Code: TDD, debugging, collaboration patterns, and proven techniques
Superpowers Plus core skills library for Claude Code: planning, execution routing, TDD, debugging, and collaboration workflows
Harness-native ECC plugin for engineering teams - 67 agents, 277 skills, 93 legacy command shims, reusable hooks, rules, MCP conventions, and operator workflows for Claude Code plus adjacent agent harnesses
Supergraph enforces a complete, evidence-based coding pipeline — scan → plan → TDD → fix → verify → review — grounded in real codebase analysis at every step. It combines AST dependency graphs, LSP-level code intelligence, and a structured skill chain so Claude never guesses about impact before making a change.
Claude harness - A harness for solo developers (Vibecoders) to handle full-cycle contract development.
Plugin-safe Claude Code distribution of Antigravity Awesome Skills with 1,850 supported skills.