By StackOneHQ
Prompt-injection and jailbreak detection for tool results via on-device ML classifier. Installs as a PostToolUse hook and flags risky content to Claude.
Agent plugins made by StackOne — integration infrastructure for AI agents, plus a prompt-injection defense hook.
# Add the marketplace
/plugin marketplace add stackonehq/agent-plugins
# Browse the catalog interactively (Discover tab)
/plugin
# Install any plugin (one per skill)
/plugin install stackone-platform@stackone-agent-plugins
/plugin install stackone-connect@stackone-agent-plugins
/plugin install stackone-agents@stackone-agent-plugins
/plugin install stackone-connectors@stackone-agent-plugins
/plugin install stackone-cli@stackone-agent-plugins
/plugin install stackone-unified-connectors@stackone-agent-plugins
/plugin install stackone-defender@stackone-agent-plugins
# Install all skills (works with Claude Code, Cursor, Codex, Windsurf, etc.)
npx skills add stackonehq/agent-plugins
# Install a specific skill
npx skills add stackonehq/agent-plugins@stackone-agents
| Plugin | Category | What it does | When to use |
|---|---|---|---|
stackone-platform | Integrations | API keys, accounts, logs, debugging | "Set up StackOne", "list my accounts", "debug API errors" |
stackone-connect | Integrations | Account linking via Connect Sessions and the Hub component | "Connect a provider", "embed the integration picker" |
stackone-agents | Integrations | Build AI agents with TypeScript/Python SDK, MCP, or A2A | "Add StackOne tools to my agent", "set up MCP" |
stackone-cli | Integrations | Custom connector development and deployment | "Build a custom connector", "deploy my connector" |
stackone-connectors | Integrations | Discover connectors, actions, and integration capabilities | "Which providers does StackOne support?" |
stackone-unified-connectors | Integrations | Build unified connectors that transform provider data into standardized schemas | "Start unified build for [provider]", "map fields to schema" |
stackone-defender | Security | Detect prompt injection and jailbreak attacks in tool results using local ML | "Scan for prompt injection", "is this text safe?", "protect my agent" |
Each plugin includes a focused skill, step-by-step workflows, concrete examples, and troubleshooting.
agent-plugins/
├── .claude-plugin/
│ └── marketplace.json # Marketplace manifest — lists all plugins
└── plugins/
├── integrations/
│ ├── stackone-platform/
│ ├── stackone-connect/
│ ├── stackone-agents/
│ ├── stackone-connectors/
│ ├── stackone-cli/
│ └── stackone-unified-connectors/
└── security/
└── stackone-defender/ # ships its own hooks/, scripts/, package.json
Each plugin directory contains its own .claude-plugin/plugin.json, a skills/<name>/ folder, and (for stackone-defender) the PostToolUse hook config plus ML scripts.
These skills teach workflows while pointing to live documentation for details that change frequently:
references/ directories for detailed lookup tables loaded on demandStackOne publishes a machine-readable documentation index at docs.stackone.com/llms.txt — agents can fetch this to discover all available documentation pages.
@stackone/ai)stackone-ai)@stackone/cli)@stackone/hub)MIT
Executes bash commands
Hook triggers when Bash tool is used
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npx claudepluginhub stackonehq/agent-plugins --plugin stackone-defenderNotifications for AI coding agents — banners + sounds when Claude finishes or pauses for permission
Build and deploy custom StackOne connectors using the CLI and Connector Engine. Covers the full workflow from init through deployment.
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Account linking with StackOne Connect Sessions and the Hub React component — full flow from session creation to webhook handling.
Build AI agents that call StackOne-linked accounts using TypeScript SDK, Python SDK, MCP server, or A2A protocol. Supports OpenAI, Vercel AI SDK, Claude, LangChain, CrewAI, PydanticAI.
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Harness-native ECC operator layer - 67 agents, 271 skills, 92 legacy command shims, reusable hooks, rules, selective install profiles, and production-ready workflows for Claude Code, Codex, OpenCode, Cursor, and related agent harnesses
Feature development with code-architect/explorer/reviewer agents, CLAUDE.md audit and session learnings, and Agent Skills creation with eval benchmarking from Anthropic.
Production-grade engineering skills for AI coding agents — covering the full software development lifecycle from spec to ship.
Permanent coding companion for Claude Code — survives any update. MCP-based terminal pet with ASCII art, stats, reactions, and personality.