Plugin marketplace

sinon

Claude catalog view for the Sinon marketplace.

3 · ririnto/sinon21 pluginsMITupdated today

Add this marketplace

Then install any plugin below by name — each page has its exact command.

spring

claudecodex

Spring development skills for Boot, Web, Data, transactions, security, messaging, Cloud, and Batch workflows.

26 skills · 1 agent

3

Coordinate workspace and Git workflow across worktree management, working-tree hygiene, merge and rebase strategies, commit conventions, and Git-contained change descriptions.

6 skills · 3 agents

3

workgraph

claudecodex

A dependency-free plugin that injects advisory Main Agent and bounded node context contracts in Claude Code and Codex.

8 skills

3

java

claudecodex

Java development skills for language design, testing, dependency management, performance, and concurrency.

5 skills · 1 agent · LSP

3

Prometheus and Grafana plugin with practical skills for alert-rule design, recording-rule support, promtool validation, dashboard JSON authoring, and Grafana mixin workflows for version-controlled observability assets.

6 skills · 1 agent

3

reactor

claudecodex

Project Reactor plugin with practical skills for Flux and Mono composition, scheduler selection, Sinks and ConnectableFlux hot-source design, and reactor-test workflows with StepVerifier, TestPublisher, PublisherProbe, and virtual time.

4 skills · 1 agent

3

herdr

claudecodex

Control Herdr, a terminal multiplexer for coding agents.

4 skills

3

kotlin

claudecodex

Kotlin development skills for idiomatic language design, coroutines, Flow, and testing workflows.

3 skills · LSP

3

harness

claudecodex

Shared implementation, review, and installation guidance for agent-driven engineering work across pnpm, Gradle, Maven, uv, Go, Rust, and shell projects.

3 skills

3

jvm

claudecodex

JVM development assistant with shared skills for tooling workflows, runtime diagnostics, and garbage-collection guidance.

3 skills

3

tlaplus

claudecodex

Skills for creating and modifying TLA+ specifications.

3 skills

3

codegraph-plugin

claudecodex

CodeGraph CLI and MCP tools with automatic project initialization, indexing, and local Git exclusion.

1 MCP server · hooks

3

codex-app-server

claudecodex

MCP tools for inspecting and driving the running Codex app-server.

1 skill · 1 MCP server

3

netty

claudecodex

Netty and Reactor Netty plugin with practical skills for high-performance network applications, bootstrap and pipeline design, ByteBuf and codec handling, and reactive HTTP/TCP/UDP workflows with Reactor Netty.

2 skills

3

Spec-first workflow: research unknowns, write abstract requirements in SPEC.md, get approval, implement, verify completeness.

1 skill · 1 agent

3

Desktop observation and automation MCP tools driven by native accessibility trees.

1 MCP server

3

clear-writing

claudecodex

Clear, relevant writing with readable Markdown, dependency diagrams, and precise mathematical relationships.

1 skill

3

ddgs-plugin

claudecodex

DDGS web search and content extraction MCP tools.

1 MCP server

3

document-creator

claudecodex

Skills for authoring AI-consumable engineering documents with structured requirements, scenarios, and acceptance criteria. Currently provides SPEC.md creation.

1 skill

3

stop-slop

claudecodex

Prose skill that removes predictable AI writing patterns from drafting, editing, and review.

1 skill

3

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Shows how many plugins this repo ships, and links here.

claude & codex plugins21 plugins