cadi-core

Core types and utilities for the CADI (Content-Addressed Development Interface) system.

About CADI

CADI is a universal build and distribution system that treats all artifacts as content-addressed chunks. It enables:

• Multi-representation support: Source code → WASM IR → binaries → containers
• Content addressing: All artifacts identified by SHA256 hashes
• Registry federation: Distribute chunks across multiple registries with trust policies
• Provenance tracking: Security attestations and build receipts
• LLM optimization: Hierarchical summaries and semantic embeddings

cadi-core

This crate provides the foundational types and utilities used throughout the CADI ecosystem:

Core Types

• Chunk: Base unit of content-addressed data with metadata
• ChunkId: SHA256-based content identifiers
• Manifest: Collection metadata and dependency graphs
• ChunkMetadata: Title, description, keywords, author, license
• BuildReceipt: Build provenance and attestation
• SecurityAttestation: Signature and verification metadata

Features

• Serialization/deserialization with serde (JSON, YAML)
• UUID generation for tracking
• Timestamp handling with chrono
• Hash computation with SHA2
• Error handling with thiserror

Installation

Add this to your Cargo.toml:

[dependencies]
cadi-core = "1.0"

Basic Usage

use cadi_core::{Chunk, ChunkMetadata};
use std::collections::HashMap;

// Create chunk metadata
let metadata = ChunkMetadata {
    title: Some("My Code Chunk".to_string()),
    description: Some("A reusable code component".to_string()),
    keywords: vec!["rust".to_string(), "library".to_string()],
    ..Default::default()
};

// Create a chunk
let chunk = Chunk {
    id: "abc123def456".to_string(),
    content: "fn hello() { println!(\"Hello, World!\"); }".as_bytes().to_vec(),
    metadata,
    content_type: "application/rust".to_string(),
    timestamp: chrono::Utc::now(),
    ..Default::default()
};

Integration with Other CADI Crates

• cadi-builder: Build chunks from source code
• cadi-registry: Publish and retrieve chunks from registries
• cadi-scraper: Automatically scrape projects into chunks

Documentation

Full API documentation available at docs.rs/cadi-core

License

MIT License - See LICENSE file in the repository