Development plugins

Project rules in .claude/rules/*.md, the directory Claude Code reads natively, one rule per file scoped by a paths: glob list. No manifest and no sync step: Live Rules adds timing only, re-grounding a rule when its content changes mid-session and delivering keyword-scoped rules Claude Code cannot trigger on its own. Disable a rule by renaming it to .md.off.

2 skills · hooks

Jeri - Create CDN loyalty page templates for Shopify theme extensions by replicating the visual style of a reference website

2 skills · 1 command

GitHub の PR を噛み砕いて解説する。レビュー依頼の巡回と、番号や URL で指定した PR (マージ済みも可) の解説に対応し、リポジトリ別のレビュー範囲に照らした解説を HTML で作る (出力言語は設定可能、既定は日本語)

3 skills

Repo-wide git housekeeping before the first prompt of every session, for any git repository. At SessionStart it runs two steps in one process: (1) fetch every branch and tag from the remote and prune stale branch and tag refs so remote-tracking refs match the remote; then (2) attach the worktree - fast-forward the branch this tree is on to the remote's default branch (main, falling back to master) using those just-fetched refs, and populate, attach, and fast-forward every top-level submodule to the superproject's recorded gitlink. Fast-forward only, so a diverged or dirty branch is left as is. Does nothing outside a git repo or in a repo with no remote, never fails a session, and injects one attached-mode summary line for the agent only when the attach step ran. Each step has its own off switch (GIT_PLUGIN_GIT_FETCH_DISABLED, GIT_PLUGIN_WORKTREE_ATTACHED_MODE_DISABLED); any non-empty value disables that step. The latest launch status is kept per session under the OS temp dir and surfaced by the read-only launch-status skill; a read-only recap skill reports branch/tracking-remote/PR state for the superproject and each top-level submodule.

2 skills · hooks

Multi-chain blockchain protocol and on-chain indexing research plugin. Ships three chain-specific skills: blockchain-research:ethereum-researcher (EVM, EIPs, go-ethereum, reth, revm, prysm), blockchain-research:solana-researcher (SVM, SIMDs, PoH, agave, SPL, Anchor), blockchain-research:tempo-researcher (TIP-20, TIP-403, MPP, Simplex BFT, Payment Lanes, Fee AMM, tidx). All skills share a chain-agnostic procedure base (quick / full mode branching, on-demand submodule install, 24-hour update cache, manifest-driven setup). Each skill produces reports via the plugin-level shared MD / HTML templates with Mermaid and inline SVG. Use the relevant chain skill whenever the user is investigating that chain, even without the word 'research'.

3 skills

Microsoft's Playwright MCP server (browser automation + scriptable Playwright code execution) plus a skill teaching efficient agent-driven use. The MCP equivalent of playwright-cli.

1 skill · 2 MCP servers

Guided, project-local first experience that helps beginners start making something real.

2 commands · hooks

Guided, project-local first experience that helps beginners start making something real.

2 commands · hooks

Claude Agent SDK Development Plugin

1 command · 2 agents

Composed meta-cognition suite: hierarchical memory management, reflective learning, and knowledge crystallization for cumulative improvement across sessions.

3 skills

Official OpenAI plugin to run Codex from inside Claude Code: code reviews, adversarial security audits, bug investigations, and full task delegation via /codex: commands.

3 skills

Domain-driven design applied pragmatically, in three skills: EventStorming (collaborative domain discovery, the three formats, the orange-sticky notation), strategic design (ubiquitous language, bounded contexts, subdomains, context mapping), and tactical design (entities, value objects, aggregates, domain events, repositories, domain services, factories), with TypeScript specifics. Composable with your own conventions.

3 skills

Refactoring (Martin Fowler, 2nd edition, with Kent Beck) applied pragmatically, in three skills: the method (the definition, the two hats, why and when to refactor, mechanics in small steps, and self-testing code as a prerequisite), the code smells (the chapter 3 catalogue of bad smells, each pointing to the refactorings that resolve it), and the refactoring catalogue (the full set of moves grouped by category, with condensed mechanics and TypeScript examples). Composable with your own conventions.

3 skills

Interactive debugging, developer experience optimization, and smart debugging workflows

1 command · 2 agents

Three macOS-native UI skills sharing one bundled knowledge corpus (the full macOS 26 'Tahoe'/Liquid Glass HIG library + a token-level DESIGN.md + the macOS 26 UI Extraction & Native Translation framework). `macosify` refits an existing UI to feel authentically AppKit-native on macOS 26, correcting iOS-derived looks (Mac Catalyst / 'Designed for iPad' on Apple Silicon) toward true native. `macos-ui-analyst` (the GlassReader persona) analyses a static macOS 26 screenshot into a structured Native Translation Report (AX-tree inventory + SwiftUI/AppKit mapping) and merges durable learnings into one accumulating knowledge file. `macos-storyboard` reads the entire corpus, then builds an interactive StyleX + Storybook storyboard of a specification's user flows — a reusable design system (tokens → elements → composites) with every screen rendered across happy / empty / loading / error / AI states, using the design-craft and frontend-design skills for bespoke, accessible direction.

3 skills

Search, compare, compose, and install free source-backed React UI from Bitelemon.

2 skills · 1 MCP server

GPG opaque-blob vault (nimvault): list/status/scan secrets; gated add/seal/unseal. Local CLI — no cloud. Pass repo_path to the git root that owns .vault/.

1 skill · 1 command · 1 MCP server

Implement or integrate Resend transactional emails in any Node.js project — complete API reference (21 topics), error handling (26 codes), production templates, and working examples. Framework-agnostic: Next.js, Express, Fastify, or any Node.js 18+.

3 skills

Issues, pull requests and code on GitHub through GitHub's remote MCP server.

3 skills

Build and run FSM-based .agent projects — MCP-driven runtime, dev tooling (init/pack/lint), and an interactive DSL helper, auto-registered on enable.

1 skill · 2 MCP servers

Token-efficient code navigation: read one symbol instead of a whole file, search code semantically, and edit with syntax verification.

1 skill · 1 MCP server · hooks

Scaffolding and codebase visualization CLI. Use when the user wants to start a new project matching a blueprint (Next.js, FastAPI, Python CLI, Go CLI) or visualize a codebase's structure.

1 skill · 2 commands

Jujutsu (jj) for teams of coding agents: skill, MCP server, and hooks.

1 skill · 1 MCP server · hooks

Git operations agents get wrong in ways that silently lose work — resolving merge, rebase and cherry-pick conflicts by both sides' intent, a hook that blocks unnamed stashes, pops by no ref or by position, plain force-pushes and, where a project opts in, pushes to its protected branches, and /git:setup, which writes the project's git-workflow skill and .claude/git.json

2 skills · hooks

Catch the CRAN policy violations that R CMD check misses: audit, auto-fix, and rejection-email response skills backed by 155 CRAN rules (2015 through September 2026).

3 skills

Multi-agent adversarial bug hunting pipeline with scoring

3 skills

Skills and a guard hook for operating agent-testbench: live sessions, plan runs, budgets.

2 skills · hooks

Git workflows: rebase onto the default or stacked parent branch, driving mechanics on a cheap model and escalating conflict resolution to a strong one.

1 skill · 2 agents

Development guidelines for coding agents writing new code, one skill per stack. Skills: develop:dotnet8 (new features and fixes in layered/DDD .NET 8 backends), develop:react (new React/TypeScript components, hooks, and features).

3 skills

Structured narrative commits (/commit) and the post-commit propagation cascade (/ship), with a per-commit cost line and an opt-in git gate that admits a Claude Code session's commits only through /commit or /ship

2 skills · hooks