12 Best Pentest AI Agents Alternatives in 2026 (Free & Paid)
Pentest AI Agents is 50 Claude Code subagents for authorized penetration testing, scope-gated, priced at open source. If it is too expensive, missing a feature or simply not for you, these are the strongest alternatives we have reviewed.
1
Large plugin marketplace of specialist subagents, skills and commands for Claude Code
★ 40k · +192 this week · MIT · updated 2026-10-01
8.8/10
What it does wshobson/agents is a plugin marketplace of ready-made building blocks for agentic coding. It started as a Claude Code subagent collection and has grown into a catalogue of 94 plugins that together hold roughly 200 specialist agents, over 180 Agent Skills, more than 100 slash commands and a set of multi-agent orchestration workflows. The specialists cover architecture, individual… Read more →
Pros
- Huge range of specialists
- Organised as small installable plugins
- Actively maintained
Cons
- Easy to install too much
- Large catalogue takes time to explore
Pricing: Free · subagents plugins
2
160+ production-ready Claude Code subagents organised by category
★ 25k · +137 this week · MIT · updated 2026-09-21
8.3/10
What it does Awesome Claude Code Subagents, maintained by the team behind the VoltAgent framework, is a curated catalogue of more than 160 Claude Code subagents. Each subagent is a Markdown file with a focused role, a description that tells Claude when to delegate to it, a list of allowed tools and a preferred model. The aim is to give… Read more →
Pros
- Well organised by category
- Easy to copy single agents
Cons
- Quality varies between agents
Pricing: Free · subagents
3
Official Microsoft plugins for building Power Platform apps, pages and flows with Claude Code or Copilot
★ 947 · +19 this week · MIT · updated 2026-10-02
8.0/10
What it does Power Platform Skills is Microsoft's official plugin marketplace for building on the Power Platform with Claude Code or GitHub Copilot CLI. It is a set of plugins, one per Power Platform service, each providing skills, agents and commands. With them an agent can scaffold and deploy Power Pages code sites, build model-driven and canvas apps, generate code… Read more →
Pros
- First-party and frequently updated
- Covers pages, model/canvas/code apps, MCP tools and flows
- Installer sets up prerequisites and auto-update
Cons
- Needs PAC CLI, Azure and a Dataverse environment
- Power Pages telemetry is on by default
Pricing: Open source · power-platform power-apps power-pages microsoft plugins
4
An orchestrated dev team of Claude Code subagents with a tech-lead coordinator
★ 4.4k · MIT · updated 2025-10-30
7.6/10
What it does Awesome Claude Agents turns Claude Code into a small development team. Instead of a loose pile of specialists, it is built around orchestration: a tech-lead orchestrator breaks a feature into steps and hands each one to the most suitable specialist for your stack, while a team configurator works out which specialists your project should use in the… Read more →
Pros
- Orchestrator pattern out of the box
- Framework specialists
Pricing: Free · subagents orchestration
5
Subagents for a rapid product studio: engineering, design, marketing and ops
★ 12k · +-4 this week · updated 2025-07-28
7.5/10
What it does Contains Studio Agents is a set of Claude Code subagents modelled on the departments of a small app studio that ships in six-day sprints. Rather than focusing only on code, it gives a solo builder or tiny team stand-ins for engineering, design, marketing, product, project management, operations and testing roles. What is inside / how it works… Read more →
Pros
- Covers product, design and marketing too
- Clear role definitions
Cons
- Less active than the biggest collections
Pricing: Free · subagents product
6
175+ Codex-native .toml subagents across 13 development categories
★ 6.3k · +33 this week · MIT · updated 2026-09-21
7.5/10
What it does Awesome Codex Subagents is a curated catalogue of specialized subagent definitions written for OpenAI's Codex CLI. Each subagent is a narrow expert (an API designer, a backend developer, a security auditor, a docs researcher, and so on) that Codex can delegate part of a task to, so the main session stays focused while the specialist works in… Read more →
Pros
- Large, categorized bench of task-specific Codex experts
- Codex-native format with per-agent model routing and sandbox modes
Cons
- Definitions are community-contributed and unaudited for security or correctness
- Codex only, and requires explicit delegation
Pricing: Open source · codex subagents awesome-list code-review toml
7
A 70-agent pipeline that runs Claude Code through staged, human-gated product development
★ 102 · MIT · updated 2026-10-02
7.5/10
What it does great_cto is an orchestration layer on top of Claude Code that turns a single prompt into a full staged product-development pipeline, run by 70 specialist agents rather than one generalist session. An independent model reviews each stage before the next one builds on it, and three decisions are deliberately kept in human hands: what gets built, how… Read more →
Pros
- Structures Claude Code into a staged pipeline (brief, architecture, implementation, deployment) with an independent model reviewing each stage and three explici
- Spending caps refuse rather than silently warn, and commands like /save, /resume, /review and /trace give visibility and control over a long-running multi-agent
Cons
- 70-agent orchestration adds real token/API cost on top of whatever model you run it with, and the staged checkpoints mean it suits deliberate builds more than q
Pricing: Free · claude-code-plugin subagent-pipeline agentic-coding cost-tracking spec-driven
8
Pi extension for foreground and background subagents with review and research agents
★ 3.8k · +54 this week · MIT · updated 2026-10-02
7.0/10
What it does pi-subagents, by Nico Bailon, is an extension for the Pi coding agent that lets it delegate work to focused child agents. The parent Pi session starts a child with its own job, then brings the result back. Children can run in the foreground and stream into the conversation, or in the background in a detached runner that… Read more →
Pros
- Ready-made scout, worker, reviewer and oracle agents
- Background runs with a live fleet inspector
- Extensive docs and a doctor command
Cons
- Only works with the Pi agent, not the apps in this directory
Pricing: Open source · pi-extension subagents code-review background-agents orchestration
9
Skills and tools that let any coding agent mod almost any PC game you own
★ 1.8k · +312 this week · MIT · updated 2026-09-30
7.0/10
What it does Universal Modder is a collection of Agent Skills, a CLI, and an MCP server that let an AI coding agent mod almost any PC game you own — reconnaissance on the game engine, reverse engineering of its file formats, AI-generated replacement assets, testing the mod in-game, and producing a showcase video of the result. What is inside… Read more →
Pros
- Covers the full modding loop end to end: engine recon, reverse engineering, AI-generated art/3D/audio via fal, asset conversion, in-game testing, and showcase v
- Works with any agent that reads Agent Skills or AGENTS.md, not locked to one vendor, and installs through existing plugin marketplaces
Cons
- Niche use case outside typical app/web development; reverse-engineering game files can run into a game's EULA or anti-cheat terms depending on the title, which
Pricing: Free · agent-skills game-modding reverse-engineering mcp claude-code-plugin
10
Plugin marketplace of skills, hooks, agents and MCP configs for four coding agents
★ 1.2k · +6 this week · Apache-2.0 · updated 2026-10-02
7.0/10
What it does Claude Codex Settings, maintained by Fatih Cagatay Akyon, is a plugin marketplace of skills, hooks, subagents, commands and MCP configurations for AI coding tools. It began as a personal setup and is now split into many small plugins, so you install only the pieces you want instead of copying a whole configuration folder. A shared CLAUDE.md with… Read more →
Pros
- Install only the plugins you need instead of a whole config
- Same review and writing helpers across Claude Code, Codex, Gemini and Cursor
- Updated very frequently
Cons
- Quality and relevance vary across a very broad plugin list
- Several plugins install hooks that run on every write or commit
Pricing: Open source · claude-code-plugin hooks skills codex mcp-config
11
Maps and documents codebases of any size with parallel Claude Code subagents
★ 739 · +7 this week · MIT · updated 2026-05-13
7.0/10
What it does Cartographer maps and documents a codebase so that coding agents can navigate it without reading every file. The classic mode is a Claude Code plugin that orchestrates parallel Sonnet subagents: it scans the file tree with token counts, plans how to split the work across budgets, spawns subagents that each analyse a slice, then synthesises their reports… Read more →
Pros
- Generates a detailed architecture map and only re-analyses changed modules
- Adds a queryable SQLite code graph and MCP wrapper in v2
Cons
- Spawns Sonnet subagents and can use significant tokens
- Claude Code only; no separate LICENSE file despite MIT claim
Pricing: Open source · codebase-mapping documentation subagents code-graph mcp
12
Self-learning skill layer for Claude Code that distills, merges and prunes skills from your real sessions
★ 7.2k · +2.6k this week · MIT · updated 2026-10-02
6.5/10
What it does Autoharness is a Claude Code plugin that writes and maintains skills for you, based on the work you actually do. It watches your sessions through hooks and counts tool calls. Once a session has done enough real work, a background reflection looks at what happened and decides whether a new skill is worth keeping. It can also… Read more →
Pros
- Learns and maintains skills automatically from real work
- Touches only its own skills, leaving yours untouched
- Keeps a ledger and evidence for every change
Cons
- Background reflection spawns extra sessions and uses more tokens
- Claude Code only, needs python3 on Linux or macOS
Pricing: Open source · agent-skills claude-code plugin self-learning automation