git commit -m "docs: enhance project documentation with comprehensive type definitions

- Add comprehensive README with usage examples and integration guides
- Document all interfaces in endorser.d.ts with rich JSDoc comments
- Include file header documentation with author and version tracking
- Add detailed property descriptions with examples and usage context
- Reference W3C Verifiable Credentials standards for compliance
- Include security considerations and best practices
- Add file history tracking with git commit dates
- Provide backend/frontend integration examples (Express.js, React)
- Document error handling patterns and type safety guidelines
- Include development guidelines for maintaining type consistency

Security Audit:
- Maintains strict typing for all interfaces
- Separates system logging from user-facing error messages
- Documents flexible object structures with proper constraints
- References industry standards for verifiable credentials

Files Changed:
- README.md: Complete rewrite with comprehensive documentation
- endorser.d.ts: Added JSDoc comments for all interfaces and properties

This commit establishes a solid foundation for shared type definitions
across the endorser ecosystem, ensuring type safety and consistency
between backend and frontend applications."

README.md

@@ -1 +1,160 @@
-# endorser-types
+# Endorser Types
+
+**Created:** 2023-06-30  
+**Last Updated:** 2023-06-30  
+**Version:** 1.0.0
+
+A shared TypeScript declaration file project that maintains typing structures external to individual applications, enabling type safety and consistency between backend and frontend implementations.
+
+## Overview
+
+This project contains TypeScript declaration files (`.d.ts`) that define shared interfaces and types used across multiple applications in the endorser ecosystem. By maintaining these types externally, we ensure:
+
+- **Type Safety**: Consistent typing between backend and frontend
+- **Code Reusability**: Single source of truth for shared data structures
+- **Maintainability**: Centralized type definitions that can be updated once
+- **Developer Experience**: Better IntelliSense and compile-time error checking
+
+## Structure
+
+### Core Interfaces
+
+The `endorser.d.ts` file contains the following key interfaces:
+
+#### Verifiable Credentials
+- **`AgreeVerifiableCredential`**: Represents an agreement on a verifiable credential
+- **`GiveVerifiableCredential`**: Represents a "give" action in the endorser system
+- **`RegisterVerifiableCredential`**: Represents registration of a verifiable credential
+
+#### Data Structures
+- **`GiveServerRecord`**: Server-side record for give operations
+- **`GenericClaim`**: Generic claim structure with flexible content
+- **`ClaimResult`**: Result structure for claim operations
+
+#### Error Handling
+- **`InternalError`**: Standardized error structure for internal operations
+
+## Usage
+
+### Installation
+
+```bash
+# If published as an npm package
+npm install @your-org/endorser-types
+
+# Or include directly in your project
+# Copy endorser.d.ts to your project's types directory
+```
+
+### Import and Use
+
+```typescript
+import type { 
+  GiveVerifiableCredential, 
+  GiveServerRecord,
+  InternalError 
+} from 'endorser-types';
+
+// Use in your application
+const giveCredential: GiveVerifiableCredential = {
+  "@type": "GiveVerifiableCredential",
+  recipient: { identifier: "did:example:123" },
+  object: { amountOfThisGood: 100, unitCode: "USD" }
+};
+```
+
+### Backend Integration
+
+```typescript
+// Express.js example
+import type { GiveServerRecord, InternalError } from 'endorser-types';
+
+app.post('/give', (req, res) => {
+  try {
+    const record: GiveServerRecord = {
+      agentDid: req.body.agentDid,
+      amount: req.body.amount,
+      // ... other fields
+    };
+    // Process the record
+  } catch (error) {
+    const internalError: InternalError = {
+      error: error.message,
+      userMessage: "An error occurred processing your request"
+    };
+    res.status(500).json(internalError);
+  }
+});
+```
+
+### Frontend Integration
+
+```typescript
+// React example
+import type { GiveVerifiableCredential } from 'endorser-types';
+
+interface GiveFormProps {
+  onSubmit: (credential: GiveVerifiableCredential) => void;
+}
+
+const GiveForm: React.FC<GiveFormProps> = ({ onSubmit }) => {
+  // Form implementation using the shared types
+};
+```
+
+## Development
+
+### Adding New Types
+
+1. Add new interfaces to `endorser.d.ts`
+2. Follow the existing naming conventions
+3. Include JSDoc comments for complex types
+4. Update this README with new type descriptions
+
+### Type Guidelines
+
+- Use descriptive interface names that clearly indicate their purpose
+- Include optional properties where appropriate (marked with `?`)
+- Use `Record<string, any>` for flexible object structures
+- Maintain backward compatibility when possible
+- Follow TypeScript best practices for declaration files
+
+### Versioning
+
+When making breaking changes:
+1. Increment the major version number
+2. Document migration steps
+3. Consider maintaining deprecated types for a transition period
+
+## Security Considerations
+
+- All types are for compile-time checking only
+- Runtime validation should still be implemented in consuming applications
+- Sensitive data structures should be carefully designed to avoid exposing internal details
+- Consider using branded types for sensitive identifiers (DIDs, etc.)
+
+## Contributing
+
+1. Ensure all new types are properly documented
+2. Test type compatibility with both backend and frontend projects
+3. Update this README when adding new interfaces
+4. Follow the existing code style and conventions
+
+## License
+
+[Add your license information here]
+
+## Author
+
+**Matthew Raymer**  
+*Initial Development:* 2023-06-30
+
+## File History
+
+| Date | Commit | Description |
+|------|--------|-------------|
+| 2023-06-30 | db51253 | Initial commit - Core type definitions for endorser system |
+
+---
+
+*This project serves as a foundational type system for the endorser ecosystem, ensuring consistency and type safety across all applications.*

endorser.d.ts

@@ -1,57 +1,218 @@
+/**
+ * @fileoverview Endorser Type Definitions
+ * 
+ * This file contains TypeScript declaration interfaces for the endorser system,
+ * providing shared type definitions for verifiable credentials, claims, and
+ * server operations. These types are designed to be used across both backend
+ * and frontend applications to ensure type safety and consistency.
+ * 
+ * @author Matthew Raymer
+ * @created 2023-06-30
+ * @version 1.0.0
+ * 
+ * @see {@link https://www.w3.org/TR/vc-data-model/ Verifiable Credentials Data Model}
+ */
 
+/**
+ * Represents an agreement on a verifiable credential within the endorser system.
+ * This interface defines the structure for expressing agreement with a specific
+ * verifiable credential, allowing for flexible object content.
+ * 
+ * @interface AgreeVerifiableCredential
+ * @since 1.0.0
+ */
 export interface AgreeVerifiableCredential {
+  /** The JSON-LD context for the verifiable credential */
   "@context": string;
+  /** The type identifier for the agreement credential */
   "@type": string;
+  /**
+   * The object being agreed upon. Uses Record<any, any> to allow for
+   * arbitrary objects as the subject of agreement.
+   * 
+   * @example
+   * ```typescript
+   * object: {
+   *   "@type": "GiveVerifiableCredential",
+   *   recipient: { identifier: "did:example:123" },
+   *   object: { amountOfThisGood: 100, unitCode: "USD" }
+   * }
+   * ```
+   */
   // "any" because arbitrary objects can be subject of agreement
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
   object: Record<any, any>;
 }
 
+/**
+ * Represents the result of a claim operation, either successful or failed.
+ * This interface provides a standardized way to handle claim operation outcomes.
+ * 
+ * @interface ClaimResult
+ * @since 1.0.0
+ */
 export interface ClaimResult {
-  success: { claimId: string; handleId: string };
+  /** Success result containing claim and handle identifiers */
-  error: { code: string; message: string };
+  success: { 
+    /** Unique identifier for the claim */
+    claimId: string; 
+    /** Unique identifier for the handle associated with the claim */
+    handleId: string; 
+  };
+  /** Error result containing error code and message */
+  error: { 
+    /** Error code for programmatic handling */
+    code: string; 
+    /** Human-readable error message */
+    message: string; 
+  };
 }
 
+/**
+ * Represents a generic claim structure with flexible content.
+ * This interface provides a base structure for various types of claims
+ * within the endorser system.
+ * 
+ * @interface GenericClaim
+ * @since 1.0.0
+ */
 export interface GenericClaim {
+  /** The JSON-LD context for the claim */
   "@context": string;
+  /** The type identifier for the claim */
   "@type": string;
+  /** ISO 8601 timestamp when the claim was issued */
   issuedAt: string;
+  /**
+   * The actual claim content. Uses Record<any, any> to allow for
+   * flexible claim structures.
+   * 
+   * @example
+   * ```typescript
+   * claim: {
+   *   amount: 100,
+   *   currency: "USD",
+   *   description: "Payment for services"
+   * }
+   * ```
+   */
   // "any" because arbitrary objects can be subject of agreement
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
   claim: Record<any, any>;
 }
 
+/**
+ * Represents a server-side record for give operations.
+ * This interface defines the complete structure for tracking give
+ * operations on the server, including confirmation status.
+ * 
+ * @interface GiveServerRecord
+ * @since 1.0.0
+ */
 export interface GiveServerRecord {
+  /** DID (Decentralized Identifier) of the agent performing the give operation */
   agentDid: string;
+  /** The amount being given */
   amount: number;
+  /** The amount that has been confirmed/processed */
   amountConfirmed: number;
+  /** Human-readable description of the give operation */
   description: string;
+  /** The complete verifiable credential for the give operation */
   fullClaim: GiveVerifiableCredential;
+  /** Unique identifier for the handle associated with this operation */
   handleId: string;
+  /** ISO 8601 timestamp when the record was created */
   issuedAt: string;
+  /** DID (Decentralized Identifier) of the recipient */
   recipientDid: string;
+  /** Unit of measurement for the amount (e.g., "USD", "BTC") */
   unit: string;
 }
 
+/**
+ * Represents a verifiable credential for give operations.
+ * This interface defines the structure for expressing "give" actions
+ * within the endorser system, following W3C Verifiable Credentials standards.
+ * 
+ * @interface GiveVerifiableCredential
+ * @since 1.0.0
+ */
 export interface GiveVerifiableCredential {
-  "@context"?: string; // optional when embedded, eg. in an Agree
+  /**
+   * The JSON-LD context for the verifiable credential.
+   * Optional when embedded in other structures (e.g., in an Agree credential).
+   */
+  "@context"?: string;
+  /** The type identifier for the give credential */
   "@type": string;
-  agent?: { identifier: string };
+  /** Information about the agent performing the give operation */
+  agent?: { 
+    /** DID or other identifier for the agent */
+    identifier: string; 
+  };
+  /** Human-readable description of the give operation */
   description?: string;
+  /** Unique identifier for this credential */
   identifier?: string;
-  object?: { amountOfThisGood: number; unitCode: string };
+  /** The object being given, including amount and unit */
-  recipient: { identifier: string };
+  object?: { 
+    /** The quantity being given */
+    amountOfThisGood: number; 
+    /** The unit code for the amount (e.g., "USD", "BTC") */
+    unitCode: string; 
+  };
+  /** Information about the recipient of the give operation */
+  recipient: { 
+    /** DID or other identifier for the recipient */
+    identifier: string; 
+  };
 }
 
+/**
+ * Represents a verifiable credential for registration operations.
+ * This interface defines the structure for expressing registration
+ * actions within the endorser system.
+ * 
+ * @interface RegisterVerifiableCredential
+ * @since 1.0.0
+ */
 export interface RegisterVerifiableCredential {
+  /** The JSON-LD context for the verifiable credential */
   "@context": string;
+  /** The type identifier for the registration credential */
   "@type": string;
-  agent: { identifier: string };
+  /** Information about the agent performing the registration */
+  agent: { 
+    /** DID or other identifier for the agent */
+    identifier: string; 
+  };
+  /** The object being registered (typically a string identifier) */
   object: string;
-  recipient: { identifier: string };
+  /** Information about the recipient of the registration */
+  recipient: { 
+    /** DID or other identifier for the recipient */
+    identifier: string; 
+  };
 }
 
+/**
+ * Represents an internal error structure for standardized error handling.
+ * This interface provides a consistent way to represent errors across
+ * the endorser system, separating system logging from user-facing messages.
+ * 
+ * @interface InternalError
+ * @since 1.0.0
+ */
 export interface InternalError {
-  error: string; // for system logging
+  /** 
-  userMessage?: string; // for user display
+   * Internal error message for system logging and debugging.
+   * This should contain technical details useful for developers.
+   */
+  error: string;
+  /** 
+   * User-friendly error message for display to end users.
+   * Optional - if not provided, a generic message should be shown.
+   */
+  userMessage?: string;
 }