#ai-agents #mcp #llm #orchestration

systemprompt-extension

Extension framework for systemprompt.io - register custom modules, providers, and APIs

26 releases

new 0.1.11 Feb 10, 2026
0.1.10 Feb 8, 2026
0.0.14 Jan 27, 2026

#601 in Machine learning

49 downloads per month
Used in 24 crates (18 directly)

BSL-1.0 license

200KB
5.5K SLoC

systemprompt.io

Production infrastructure for AI agents

systemprompt.ioGitHubDocumentation


systemprompt-extension

Extension framework for systemprompt.io - register custom modules, providers, and APIs.

Crates.io Documentation License: FSL-1.1-ALv2

Overview

Part of the Shared layer in the systemprompt.io architecture.

Provides the infrastructure for building and loading systemprompt.io extensions. Extensions can add new routes, services, and capabilities to the platform.

Installation

Add to your Cargo.toml:

[dependencies]
systemprompt-extension = "0.0.1"

Quick Example

use systemprompt_extension::prelude::*;

struct MyExtension;

impl Extension for MyExtension {
    fn id(&self) -> &str { "my-extension" }
    fn name(&self) -> &str { "My Extension" }
    fn version(&self) -> &str { "1.0.0" }
}

register_extension!(MyExtension);

Feature Flags

Feature Default Description
web Yes HTTP API routes via Axum
plugin-discovery No Dynamic plugin loading

Key Types

  • ExtensionContext - Runtime context for extensions
  • ExtensionError - Error types for extension operations
  • ExtensionLoader - Registration and loading system

Dependencies

  • async-trait - Async trait support
  • axum - Router types (optional, with web feature)
  • inventory - Compile-time extension registration
  • reqwest - HTTP client (optional, with web feature)

License

FSL-1.1-ALv2 - See LICENSE for details.

Dependencies

~9–26MB
~264K SLoC