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Version History

This page documents the version history of the Artinet SDK, highlighting breaking changes and important updates that may affect your integration.

Migration Guides

0.5.x to 0.5.4 Migration

If you're upgrading to 0.5.4, be aware of the following breaking changes:

  1. Method Name Changes: Core methods have been renamed to align with message-based approach:
  2. sendTask → sendMessage
  3. sendTaskSubscribe → sendStreamingMessage

  4. Update push notification config methods to tasks/pushNotificationConfig/set and tasks/pushNotificationConfig/get

  5. Schema Import Paths: Import paths have been refactored to use new schema structure under schemas/a2a

  6. Deprecated Submodules: The a2a-samples and mcp-use submodules have been removed

0.3.x to 0.5.0 Migration

If you're upgrading from 0.3.x to 0.5.0, be aware of the following breaking changes:

  1. SystemError Constructor: The data parameter in the SystemError constructor and all specific error factory functions (e.g., PARSE_ERROR(), INVALID_PARAMS(), TASK_NOT_FOUND()) is now mandatory.

  2. Express Server Refactoring: The createExpressServer utility has been refactored:

  3. No longer accepts a port parameter.
  4. No longer creates or returns an http.Server instance.

  5. Server starting is now handled within A2AServer.start() only.

  6. Type Definition Changes: Optional properties are now defined using type? instead of type | null.

  7. Task Status Initialization: When a task is initiated, the initial task status no longer includes a message: null field.

  8. Error Messaging: Generic METHOD_NOT_FOUND() errors have been replaced with more specific PUSH_NOTIFICATION_NOT_SUPPORTED() errors.

Detailed Version History

Changelog

All notable changes to the @artinet/sdk package will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[0.5.4] - 2025-06-12

Added

  • New ExecutionContext interface for enhanced parameter management across services
  • MCPExecutionContext and NLWebExecutionContext interfaces for protocol-specific request handling
  • New schema organization under schemas/a2a directory for improved code structure

Changed

  • BREAKING: Renamed core methods to align with message-based approach:
  • sendTask → sendMessage
  • sendTaskSubscribe → sendStreamingMessage
  • Updated push notification config methods to tasks/pushNotificationConfig/set and tasks/pushNotificationConfig/get
  • Refactored import paths to use new schema structure under schemas/a2a
  • Enhanced error handling and validation for message parameters across the codebase
  • Updated documentation to reflect new method names and functionalities

Removed

  • Deprecated submodules for a2a-samples and mcp-use

[0.5.2] - 2025-05-25

Added

  • New artinet.v0 namespace in src/utils/deployment/agents.ts providing taskManager, connect, and agent utilities. These are designed for agents running in sandboxed or managed environments, offering a standardized way to interact with the host system for task execution, inter-agent communication, and external API calls.
  • Corresponding types for the new agent utilities in src/types/proxy.ts: TaskProxy, TaskManagerProps, TaskManager, ConnectProps, ConnectAPICallback, ClientProxy, ClientProps, ClientFactory.
  • New exports path ./agents in package.json to expose the artinet.v0 utilities.
  • New example file examples/nested-deployment.ts demonstrating how to use artinet.v0.agent for an agent to call another agent, and artinet.v0.taskManager for managing the agent's lifecycle.
  • New dev-pack script in package.json for easier local development and packaging.

Changed

  • Refactoring:
    • src/client/interfaces/client.ts has been moved to src/types/client.ts.
    • src/server/interfaces/context.ts has been moved to src/types/context.ts.
    • Internal type imports throughout the codebase have been updated to reflect these changes.
  • Examples examples/code-deployment.js and examples/code-deployment.ts have been updated to use the new artinet.v0.taskManager and artinet.v0.connect utilities instead of the deprecated proxy functions.
  • Updated @types/node dependency to ^20.17.50.

Deprecated

  • The taskHandlerProxy and fetchResponseProxy functions in src/utils/deployment/task-wrapper.ts are now deprecated. Developers should migrate to the new artinet.v0.taskManager and artinet.v0.connect utilities respectively.

Removed

  • Removed json-schema-to-typescript from devDependencies as it's no longer directly used.

Fixed

  • Minor wording update in the "QUICK-AGENT FAQs" section of README.md for clarity on searching by registrationId/agentId.

[0.5.1] - 2025-05-12

Added

  • fullDeployment utility (src/utils/deployment/full-deployment.ts): Enables direct deployment of bundled agent code and its AgentCard to the Artinet platform. Requires an ARTINET_API_KEY.
  • New comprehensive test suite for deployment features (tests/deployment.test.ts), covering testDeployment and fullDeployment.
  • Agents registered via A2AServer.registerServer() or register: true now include tags: ["a2a"] in their registration payload.

Changed

  • The handler property in A2AServerParams (used to pass the agent's core logic) was previously documented and used in some examples as taskHandler. This has been corrected to handler consistently. While taskHandler might have worked due to object flexibility, handler is the intended property name.
  • Clarified type description for ServerDeploymentRequestParams.dependencies to note it is "currently unsupported".
  • Clarified type description for BaseServerDeploymentResponseParams.deploymentId regarding its value in full deployments.

Fixed

  • Improved error handling in A2AClient during agentCard() fetching:
    • Validates parsed URLs before use.
    • Ensures AgentCard objects contain a name property.
  • Enhanced error logging in src/transport/rpc/parser.ts to include error.message for SystemError instances.
  • Prevented agent registration via register() utility if the AgentCard.url is localhost, 127.0.0.1, or empty, returning an empty string instead of attempting registration.
  • Corrected an issue in an example in README.md where taskHandler was used instead of handler for the A2AServer constructor (matches the breaking change clarification above).
  • Minor stability improvement in testDeployment utility's event handling logic.

[0.5.0] - 2025-05-10

Added

  • A2AServer.getExpressApp(): New method to access the underlying Express application instance, allowing for more flexible server customization and middleware integration.
  • More specific error messages for various RPC errors (e.g., TASK_NOT_FOUND, INVALID_PARAMS, PARSE_ERROR), providing better debugging information and context.

Changed

  • BREAKING: The data parameter in the SystemError constructor and all specific error factory functions (e.g., PARSE_ERROR(), INVALID_PARAMS(), TASK_NOT_FOUND()) is now mandatory. This change aims to enhance error reporting by ensuring contextual information is always provided with errors.
  • BREAKING: Refactored the createExpressServer utility (src/server/lib/express-server.ts):
    • It no longer accepts a port parameter.
    • It no longer creates or returns an http.Server instance (i.e., it doesn't call app.listen()). It now solely configures and returns the Express app instance.
    • The responsibility of starting the HTTP server is now fully handled within the A2AServer.start() method, which uses the app configured by createExpressServer.
  • Updated numerous TypeScript type definitions in src/types/schema.ts to more strictly define optional properties. Many properties that were previously type | null are now just type?, and JSDoc @default null comments have been removed. This aligns with standard TypeScript practices where optional properties are either present with a value or absent (undefined), rather than being explicitly null.
  • When a task is initiated via A2AServer.sendTaskAndStore(), the initial task status (Task.status) no longer includes a message: null field.
  • In src/server/lib/state.ts, when creating a new task object during loadState, sessionId and metadata properties are assigned directly if provided, without defaulting to null if they are undefined.
  • Replaced generic METHOD_NOT_FOUND() errors with more specific PUSH_NOTIFICATION_NOT_SUPPORTED() errors in defaultSetTaskPushNotificationMethod and defaultGetTaskPushNotificationMethod when the agent's card indicates that push notifications are not supported.

Removed

  • The test file tests/deployment.test.ts has been removed. The testDeployment utility and related "Quick-Agents" features remain.

Improved

  • The documentation section in README.md regarding agent code deployment has been renamed from "Agent Code Deployment (Beta)" to "Quick-Agents (Alpha)". This section includes updated descriptions, code examples for bundling and testing agents, and a new FAQ.
  • Server startup logging in A2AServer now consistently uses logInfo for messages like "A2A Server started and listening".

[0.4.1] - 2025-05-08

Added

  • Utility for bundling agent code using esbuild (src/utils/deployment/bundler.ts).
  • Task handler wrapper (taskHandlerProxy) and fetchResponseProxy for streamlined agent deployment logic (src/utils/deployment/task-wrapper.ts, examples/task-wrapper.js).
  • Test deployment functionality (testDeployment) to test agent deployments in a sandboxed environment (src/utils/deployment/test-deployment.ts).
  • New types for server deployment requests and responses (ServerDeploymentRequestParams, ServerDeploymentResponse, etc. in src/types/extended-schema.ts).
  • Comprehensive tests for the new bundler and deployment features (tests/bundler.test.ts, tests/deployment.test.ts).
  • Example agents demonstrating code deployment: examples/code-deployment.js and examples/code-deployment.ts.
  • esbuild dependency for bundling.

Changed

  • BREAKING: Updated rootDir in tsconfig.json to src and declarationDir to ./dist/types. This changes the output structure for type declarations.
  • Type declaration paths in package.json updated to dist/types/index.d.ts to reflect tsconfig.json changes.
  • Deprecated JSONRPCSuccessResponse, JSONRPCErrorResponse in src/types/extended-schema.ts in favor of the more general JSONRPCResponse.
  • Enhanced error logging in src/transport/rpc/parser.ts by adding response data to parse errors.

[0.3.0] - 2025-04-28

Added

  • Server option register: boolean in A2AServerParams to automatically register the agent with the A2A Registry on startup (default: false).
  • A2AServer.registerServer() method to manually trigger agent registration.
  • Server option fallbackPath: string in A2AServerParams to customize the fallback endpoint for serving the Agent Card (defaults to /agent-card). The standard /.well-known/agent.json endpoint remains.
  • Client constructor option fallbackPath: string in A2AClient to specify a custom path when fetching the Agent Card if the standard paths fail.

Changed

  • BREAKING: Renamed server configuration type from A2AServerOptions to A2AServerParams for consistency.
  • Updated dependencies to latest versions:
    • eventsource-parser to ^3.0.1. Adapted streaming logic (handleEventStream) to use EventSourceMessage type from this library.
    • express to ^5.1.0.
    • jayson to ^4.2.0.
    • node:16 to node:22
    • ES2020 to ES2022
  • Updated various code examples in documentation for improved clarity and consistency (README.md, examples/).

Improved

  • Refactored server JSON-RPC method handling:
    • Introduced createJSONRPCMethod helper for wrapping A2A method logic with dependency injection and error handling.
    • Exported default implementations for standard A2A methods (e.g., defaultSendTaskMethod) from lib/middleware/a2a-methods.js.
    • Provided defaultCreateJSONRPCServer factory demonstrating standard server setup. This simplifies advanced server customization.
  • Significantly revised and expanded README.md documentation:
    • Updated Features, Class Documentation, and Usage sections.
    • Added detailed section on Server Registration & Discovery.
    • Corrected and clarified Advanced Server Customization examples.
  • Updated test suite to incorporate tests for new server registration and fallback path functionalities.

0.2.0 - 2025-04-25

Fixed

  • Fixed TypeScript errors related to the eventsource-parser package imports
  • Updated imports to use the correct types from eventsource-parser v1.1.1
  • Properly typed the EventSourceMessage as ParsedEvent
  • Refactored createParser implementation to match the package's API
  • Fixed streaming response handler to use the correct event type checking

Changed

  • Updated tsconfig.json to add isolatedModules: true for better compatibility with ts-jest
  • Modified package.json test scripts to include NODE_OPTIONS=--experimental-vm-modules flag to support ES modules in Jest tests

Improved

  • Expanded test suite to achieve 80% code coverage
  • Added tests for all client methods
  • Added robust error handling tests
  • Added tests for streaming functionality
  • Added tests for push notification configuration
  • Added tests for edge cases in agent card fetching and capability detection

0.1.0 - 2025-04-22

Added

  • Initial release of the @artinet/sdk package
  • Implementation of the Agent2Agent (A2A) Protocol client
  • Support for sending tasks, retrieving statuses, and canceling operations
  • Support for streaming responses and push notifications
  • Comprehensive test suite and documentation