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johndoe6345789 48135c81e6 feat: Propagate workflow plugins to Go, Rust, C++, and Mojo

Multi-language workflow plugin system following Python's structure:
- Each plugin in its own directory with implementation + package.json
- Category-level package.json manifests listing all plugins
- Consistent interface: run(runtime, inputs) -> outputs

Languages added:
- Go: math, string, logic, list, dict, var, convert (25+ plugins)
- Rust: math, string, logic, list, convert, var (50+ functions)
- C++: header-only math, string, logic, var, convert (30+ plugins)
- Mojo: math, string, list with systems programming features

Python structure fixed:
- Reorganized flat files into plugin subdirectories
- Added package.json metadata to all 120+ plugins
- Added missing backend category (15 plugins)
- Category manifests with plugin lists

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

2026-01-21 18:42:14 +00:00

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Rust Workflow Plugins

High-performance Rust plugins for MetaBuilder workflow engine.

Plugin Interface

// All plugins implement this signature
pub fn run(runtime: &mut Runtime, inputs: &HashMap<String, Value>) -> PluginResult;

The runtime object provides:

store - Workflow state storage (persists between nodes)
context - Shared context (clients, configuration)

Category	Plugins	Purpose
convert	to_string, to_number, to_boolean, to_json, parse_json, to_list, to_object	Type conversion
list	concat, length, slice, reverse, first, last, at, contains, index_of, unique	List operations
logic	and, or, not, xor, equals, gt, gte, lt, lte, is_in	Boolean logic
math	add, subtract, multiply, divide, modulo, power, abs, round	Arithmetic
string	concat, split, replace, upper, lower, trim, length, contains, starts_with, ends_with	String manipulation
var	get, set, delete, exists, keys, clear	Variable management

Building

cd workflow/plugins/rust
cargo build --release

Example Usage

In Workflow JSON

{
  "version": "2.2.0",
  "nodes": [
    {
      "id": "process-data",
      "type": "operation",
      "op": "rust.list.unique",
      "params": {
        "list": [1, 2, 2, 3, 3, 3, 4]
      }
    }
  ]
}

Performance

Rust plugins offer:

100-1000x faster than Python for CPU-bound operations
Zero-cost abstractions - no runtime overhead
Memory safety - guaranteed by compiler
Native FFI - can be called from any language

Best for:

High-performance data processing
Memory-intensive operations
Bulk transformations (1M+ items)
Security-critical operations

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