Elsai Agents — Release Notes

v0.1.0

Release Date: 2025

Initial release of the Elsai Agent Framework, built on the Strands Agents SDK.

Installation

pip install --extra-index-url https://elsai-agents.elsai.ai/root/ elsai-agents==0.1.0

Optional extras:

# With A2A support
pip install --extra-index-url https://elsai-agents.elsai.ai/root/ "elsai-agents[a2a]==0.1.0"

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Core agent runtime

• Agent class — Single entry point for creating and running agents with any supported LLM
• Agent loop — Automatic tool-call/response cycle with configurable max iterations
• Streaming — Token-by-token and event-stream output
• Structured output — Typed responses via Pydantic models

Tools

• @tool decorator — Convert any Python function into an agent tool
• MCP Tools — Connect agents to any MCP server
• Built-in tools — File I/O, HTTP, calculator, and more

Multi-agent

• Graph — DAG-based agent pipelines with conditional routing
• Swarm — Dynamic agent handoffs with shared context
• Workflow — Sequential and parallel agent pipelines
• Agent as Tool — Nest agents inside other agents
• Agent-to-Agent (A2A) — Remote agent calls over HTTP via A2AServer and A2AAgent

Memory and sessions

• SessionManager — Persist and restore agent conversation state across runs
• File and S3 storage backends for session persistence

Lifecycle and control

• Hooks — BeforeAgentCallEvent, AfterAgentCallEvent, BeforeToolCallEvent, AfterToolCallEvent
• Interrupts — Pause and resume agent execution mid-loop
• Retry strategies — ModelRetryStrategy with exponential backoff

Plugins

• AgentSkills — Load reusable skill sets from SKILL.md files
• LLMSteeringHandler — Pre/post-call LLM guardrails (Proceed / Guide / Interrupt)
• ContextOffloader — Automatic offloading of large context to external storage