AgentSys is a runtime and orchestration system for AI coding agents, coordinating tasks such as branch management, code review, CI, and deployment through structured workflows and persistent state. It is used with Claude Code, Codex CLI, OpenCode, Cursor, and Kiro. The catalogue entries are AgentSys-related plugins, hooks, settings, skills, and instructions.
Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
git clone --depth 1 https://github.com/agent-sh/agentsysWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/plugins/agent-sh/agentsys/marketplace)<a href="https://agentmods.dev/plugins/agent-sh/agentsys/marketplace"><img src="https://agentmods.dev/badge/plugins/agent-sh/agentsys/marketplace/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/plugins/agent-sh/agentsys/marketplace"><img src="https://agentmods.dev/badge/plugins/agent-sh/agentsys/marketplace.svg" alt="Reviewed on agentmods" width="80" height="20"></a>Grade A, and why
agentsys marketplace scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured today.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 363 lines — stays where its author put it; the contents beside it link to each section on GitHub.
{
"name": "agentsys",
"description": "25 specialized plugins for AI workflow automation - task orchestration, PR workflow, slop detection, code review, drift detection, enhancement analysis, documentation sync, unified static analysis, durable memory, negative behavior memory, skill and system prompt curation, perf investigations, topic research, agent config linting, cross-tool AI consultation, structured AI debate, workflow pattern learning, codebase onboarding, contributor guidance, delegated project delivery with independent review, Zig language support, Mojo language support, and Ada/SPARK language support",
"version": "6.1.1",
"owner": {
"name": "Avi Fenesh",
"url": "https://github.com/avifenesh"
},
"repository": "https://github.com/agent-sh/agentsys",
"keywords": [
"ai",
"llm",
"agents",
"agentic",
"claude-code",
"opencode",
"codex",
"mcp",
"automation",
"workflow",
"code-review",
"multi-agent"
],
"plugins": [
{
"name": "next-task",
"source": {
"source": "url",
"url": "https://github.com/agent-sh/next-task.git",
"commit": "8e5752000b2a57ccb7983c1233fdb19ea1030e58",
"sha": "8e5752000b2a57ccb7983c1233fdb19ea1030e58"
},
"description": "Master workflow orchestrator: autonomous workflow with model optimization (opus/sonnet/haiku), two-file state management, workflow enforcement gates, 8 specialist agents",
"version": "1.3.0",
"category": "productivity",
"homepage": "https://github.com/agent-sh/next-task"
},
{
"name": "prepare-delivery",
"source": {
"source": "url",
"url": "https://github.com/agent-sh/prepare-delivery.git",
"commit": "5df28a4b76aabba42de6d008bdfc68c36f619686",
"sha": "5df28a4b76aabba42de6d008bdfc68c36f619686",
"ref": "v0.3.0"
},
"description": "Pre-ship quality gates: deslop, simplify, agnix, enhance, review loop, delivery validThe plugins it lists here
This marketplace lists 1 plugin kept in the same repository. Each has its own page, its own measurements and its own install command.
What ships with it
1 file beside marketplace.json in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- today Changed ab67b9803970
- 2d ago Changed 32d17840d17f
- 3d ago Changed · +14 lines fc2d959081a4
- 9d ago Changed a8bdc2e52b4e
- 11d ago Changed · +24 lines 2dd68c5648d4
- 19d ago Changed · -13 lines 31eb96401e61
- 24d ago Changed · -6 lines 3f10d4971fca
- 1mo ago First seen · 344 lines scan A a1a9a080264f
agentsys marketplace is a plugin published in the GitHub repository agent-sh/agentsys (1,004 stars, last pushed yesterday), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other plugins, from other repositories
product-discovery-suite
Decide what is worth building, who it serves, and what a useful first version must do.
architecture-suite
Understand the system you have and choose changes with clear boundaries, tradeoffs, and recovery paths.
rp1-dev
Development workflow automation including feature development, code quality, and PR management.
pr-workflow
PR and issue lifecycle — structured planning (CEO/Eng gates), PR creation, code review, issue triage, session handoffs.
coding-skills
Project scaffolding and eight-axis code review with contextual validation and JSONL output.
nah
NAH, Not Another Harness: ticket-driven build loop with cross-vendor code review (architect session, tk tickets, one-ticket-at-a-time developer subagent, GPT reviewer via pi).