Changelog

Track the evolution of the Hikigai Platform. New features, improvements, and fixes.

SDK Docs

v1.5.1

NEWJuly 2026

Cloud Event Bus, Multi-Cloud Deploy & Realtime Push

  • Broker-neutral CloudEvents bus with transactional outbox
  • Multi-cloud deploy for agents, apps, and MCP servers on GCP and AWS
  • Tenant webhooks with HMAC-signed CloudEvents deliveries
  • Realtime event push over WebSocket with Redis backplane
Added
  • •Cloud Event Bus with CloudEvents 1.0 envelope and in-memory, GCP Pub/Sub, and AWS EventBridge adapters
  • •Transactional outbox with background relay and publish-time schema validation
  • •SuperAdmin DLQ list/peek/redrive and bounded replay APIs, plus an operator CLI and audited bus events
  • •Event bus infrastructure — EventBridge, SQS queues/DLQs, queue-depth autoscaling, and lag alarms
  • •Admin Event Bus page for outbox health, dead letters, replay, and telemetry
  • •Event bus consumer with handler registry for audit, webhooks, and broadcast, plus idempotent processing so each event is handled once
  • •Standalone SQS long-poll worker for autoscaled AWS event delivery
  • •Project-scoped webhook subscriptions with HMAC-SHA256 signatures, exponential backoff retries, and SSRF URL protection
  • •Console Webhooks tab — signing secret, pattern picker, pause/rotate/delete, test ping, delivery status, and redelivery
  • •Realtime push over WebSocket with Redis pub/sub backplane and bus-driven job SSE with polling fallback
  • •Expanded event catalog for agent deploy/delete, invocation completed, and storage object create/delete
  • •Admin Version page for platform release notes and SDK package versions
  • •Multi-cloud deployment — apps, agents, and MCP servers deploy to GCP or AWS
  • •Bring-your-own-cloud (BYOC) project credentials for AWS and GCP; platform-managed credentials when none are attached
  • •Console and SDK cloud target picker with provider, service, region, and schema-validated settings
Improved
  • •Safer concurrent outbox relay on Postgres
  • •Redis-backed publish-token and stream limiter with in-process fallback
Fixed
  • •Console Webhooks no longer trigger auto-logout on authenticated calls
  • •Deployment ImportError from incompatible mcp and google-adk package versions

v1.5.0

NEWJuly 2026

Multimodal Invoke, Rooms & Playground

  • Multimodal agent invoke — images, audio, video, and documents
  • Project-scoped WebSocket Rooms for realtime pub/sub
  • In-project Playground to test agents with form or JSON input
  • Realtime publish tokens and live modality support
Added
  • •Central model registry for provider and modality capabilities, with multimodal attachments on invoke
  • •Non-text invoke outputs returned by reference as artifacts
  • •Realtime publish tokens, TURN ephemeral credentials, per-project stream caps, and stream start/stop audit events
  • •WebSocket Rooms with presence, bounded replay, Redis backplane, and SDK RoomSession clients
  • •Project-scoped Playground with Form/JSON input, multimodal attachments, and publish-token minting
  • •API reference documentation for Rooms naming, creation, and lifecycle
Improved
  • •Modalities extended to text, audio, image, video, and document with central validation
  • •Provider inference at invoke sites instead of brittle string matching
  • •Python and Node SDKs updated; invoke forwards attachments to Cloud Run
  • •Personal-name redaction in PHI scrubbing
  • •Project Playground modality options and console session auth for Playground
Changed
  • •Playground moved into project scope; global playground route redirects to projects
  • •SDK scopes derived from project membership when a project header is present
Fixed
  • •Rooms router registration so the API starts cleanly

v1.0.0

NEWMay – June 2026

Platform GA — App Deploy, MCP Servers, Identity & Compliance

  • End-to-end App Deployment from GitHub (CodeBuild → ECR → ECS)
  • Full MCP server deployment platform with ALB and registry
  • HIPAA compliance auditing and marketplace lifecycle
  • AWS Cognito SSO, End-User Identity, jobs, storage, and sessions
Added
  • •App Deployment from GitHub with framework detection, Dockerfile generation, live build logs, and auto-deploy webhooks
  • •MCP server deployment platform with eight-phase orchestrator, AWS infrastructure, ALB routing, and console deploy experience
  • •End-to-end HIPAA compliance auditing and marketplace lifecycle management
  • •AWS Cognito SSO with Google and GitHub federated authentication
  • •Node.js AgentSDK and AppSDK with documentation and frontend integration
  • •End-User Identity Service — Cognito Auth-as-a-Service with export and import
  • •Background job queue and Session Context Store across REST API and SDKs
  • •Object storage features and API endpoints
  • •Unified MCP Registry consolidating EHR, Wearable, and Marketplace connectors
  • •Subdomain-per-deployment routing for apps and MCP servers
  • •Live bidirectional streaming and agent modality support
  • •Per-user GitHub App installation for team deployments
Improved
  • •Role management and permissions; project detail tab navigation
  • •MCP marketplace submission, moderation, metrics, and connector monitoring
  • •Agent deployment with job queue integration and storage/job clients in SDKs
  • •Environment variables with platform-injected vars and .env import
Fixed
  • •Project ID required on invoke and deploy APIs
  • •Project-scoped connector resolution and agents listing
  • •Orphaned Cognito users recovered on signup, with rollback of partial creates
  • •HIPAA audit JSON parsing and model validation
Changed
  • •App and MCP auto-deploy from the shared GitHub App webhook
  • •Data Connectors renamed to EHR Connectors; marketplace revocation for agents and MCP servers

v0.5.0

IMPROVEDMarch – April 2026

Healthcare Ecosystem, Streaming & Hardened Security

  • Healthcare agent ecosystem standards end-to-end
  • Bidirectional WebSocket streaming via ADK / Gemini Live
  • MCP Registry, connectors, and clinical documentation tooling
  • Security remediations and Alembic migration framework
Added
  • •Healthcare agent ecosystem standards implemented end-to-end
  • •Clinical manifest, SDK-to-DB bridge, and agent confidence score metrics
  • •Bidirectional WebSockets via ADK with multimodal audio streaming and more stable Cloud Run deployments
  • •MCP Registry with connector catalog and local/remote transport support
  • •Clinical documentation and transcription tooling delivered end-to-end
  • •Personalization plugin with ADK agents; Gemini Live transcription toggle
  • •Dynamic role management and platform-wide permissions
  • •Google SSO consolidation and sample healthcare agent deployments
  • •OpenTelemetry observability and ECS Fargate deployment workflows
  • •AgentSDK and hikigai-core published for TestPyPI
Improved
  • •Direct Agent Invoke and Deploy APIs hardened
  • •RBAC permission resolution and project authorization toast system
  • •Connector system refactored for wearable and data categories
  • •Cookie-based session recovery for cross-tab auth persistence
Fixed
  • •Full Alembic migration framework replacing ad-hoc schema creation
  • •Removed unauthenticated admin seed, wildcard CORS, and hardcoded secrets
  • •HIPAA audit IP spoofing prevention; prompt-injection guard on custom instructions
  • •Rate limiter in-memory fallback; BYOK encryption with per-value random salt
  • •AgentSDK deployment polling now tracks deployment status correctly

v0.3.0

NEWFebruary 2026

Multi-Agent Orchestration, RBAC & SDK Split

  • Monolithic SDK split into AgentSDK and AppSDK
  • Config-based multi-agent deployment with nested sub-agents
  • Fine-grained RBAC and multi-member API keys
  • Edit Agent / redeploy flow and API key lifecycle
Added
  • •SDK split into AgentSDK and AppSDK with documentation
  • •Fine-grained RBAC with multi-member API keys
  • •Config-based multi-agent deployment with nested sub-agent support
  • •Agent orchestration with root/sub-agents and nesting limits
  • •Edit Agent and redeployment flow, including API-key redeploy
  • •API key lifecycle management with permission-based revocation
  • •Multi-agent architecture visualization and deployment wizard sub-agent model selection
  • •Example clinical agent pipelines for lab and procedure insights
Improved
  • •Project visibility, API key UX, and agent deletion cleanup
  • •Dashboard stats for active and inactive projects and agents
  • •BYOK enforcement for SDK overrides with clearer deployment errors
Fixed
  • •Workflow agent deployment and sub-agent rendering
  • •Project-scoped Cloud Run cleanup on deployment
  • •Project member field mismatch and legacy project migration

v0.1.0

NEWJanuary 2026

Initial Platform Release

  • Hikigai Platform foundation — agents, projects, and marketplace
  • SDK with project-scoped deployments and required config fields
  • BYOK support and Get Started / Deploy documentation
  • Agent details UX and authentication persistence
Added
  • •Core platform for deploying and managing healthcare AI agents, projects, and marketplace listings
  • •SDK requiring project_id, display_name, version, and timeout for agent deployments
  • •Full-lifecycle bring-your-own-key (BYOK) support across deploy and invoke
  • •Get Started documentation and config-based deployment walkthrough
  • •Agent marketplace with detailed descriptions and a full agent details experience
  • •RBAC and API key architecture docs; onboarding and project creation flow guides
  • •Improved deployment flow and project management
Fixed
  • •Authentication persistence and token expiration issues
  • •Agent deployment association and dashboard visibility
  • •Cloud Run deployer now activates the GCP service account from application credentials

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