A robust framework for registering multi-language function handlers and binding them to diverse event sources within the Openclaw Skills ecosystem.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install iii-functions-triggers
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install iii-functions-triggers using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is Functions & Triggers?
The Functions and Triggers capability is a core component of the Openclaw Skills architecture, providing a serverless-like runtime for building distributed, event-driven systems. It allows developers to register asynchronous handlers across TypeScript, Python, and Rust, enabling seamless cross-language interoperability. By abstracting the complexities of serialization, routing, and delivery, this skill ensures that workers can focus on business logic while the engine manages the communication fabric.
At its heart, this skill facilitates the creation of a unified compute layer where functions are identified by unique IDs. These functions can be triggered by a variety of event sources, including HTTP requests, cron schedules, durable subscribers, or state changes. Whether you are building a simple API or a complex multi-agent workflow, these Openclaw Skills primitives provide the necessary scaffolding for high-performance orchestration.
Functions & Triggers Use Cases
- Creating multi-language microservices where TypeScript, Python, and Rust functions coexist and interact.
- Implementing event-driven triggers for scheduled tasks, real-time streams, and pub/sub messaging.
- Building robust API gateways by wrapping external endpoints as callable function IDs with HTTP triggers.
- Orchestrating durable background processing using enqueued trigger actions for resilient task execution.
- Standardizing interface discovery through automated request and response schema generation across different programming environments.
How Functions & Triggers Works
- The worker process initiates a connection to the central engine using the registerWorker primitive, identifying itself within the Openclaw Skills network.
- Developers define specific logic as functions and register them with a unique namespace-based ID using registerFunction.
- Event sources are bound to these functions through registerTrigger, defining how and when the handler should be executed (e.g., via a cron expression or an HTTP path).
- When a trigger condition is met, the engine automatically routes the payload to the correct worker and executes the associated function handler.
- Functions can invoke other registered functions synchronously or asynchronously using the trigger primitive, supporting complex, nested workflows across the entire system.
Functions & Triggers Setup
To implement these Openclaw Skills in your project, follow the registration pattern for your preferred language. Ensure your worker is connected to the engine before registering handlers.
# Example of connecting a worker and registering a function
# Use the respective SDK for TypeScript, Python, or Rust
registerWorker('ws://localhost:49134', { workerName: 'my-service-worker' });
registerFunction('utility::process-data', async (input) => {
// Implementation logic here
return { status: 'success' };
});
Configure triggers to bind the function to an external or internal event source:
registerTrigger({
type: 'cron',
function_id: 'utility::process-data',
config: { expression: '0 * * * *' }
});
Functions & Triggers Data Schema & Taxonomy
The Openclaw Skills framework uses a structured set of primitives to manage function and trigger lifecycles. Data is organized by unique function IDs and specific trigger configurations.
| Primitive | Purpose | Key Metadata |
|---|---|---|
| registerWorker | Connects the runtime to the engine | workerName, URL |
| registerFunction | Registers a logic handler | ID, request_format, response_format |
| registerTrigger | Binds an event to a function | type (http, cron, etc.), config, metadata |
| trigger | Invokes a function | function_id, payload, action (Sync, Void, Enqueue) |
Functions can declare their input and output schemas using JSON Schema (Draft 7 or 2020-12), which is often auto-generated from native types like Pydantic models or Rust structs.
Functions & Triggers Advanced Features
- Multi-language orchestration allowing a TypeScript function to trigger a Rust-based computational worker.
- Automated schema registration using schemars for Rust and Pydantic type hints for Python to facilitate auto-documentation.
- Durable task execution via TriggerAction.Enqueue, ensuring tasks are retried and managed via persistent queues.
- Advanced HTTP trigger configurations including middleware function support and custom API path mapping.
- Metadata tagging for triggers to allow for sophisticated filtering, priority management, and ownership tracking within the Openclaw Skills engine.
SKILL.md
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