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    Agent Handoff Contract

    1

    Stop fragile agent chains with structured, versioned, and idempotent handoff contracts for multi-agent systems.

    Free

    6 usesSecurity scanned
    Agent Handoff Contract

    Agent Handoff Contract

    Example session with this skill installed

    Define a handoff contract between a 'Bug Analyzer' agent and a 'Fix Proposer' agent for a GitHub issue workflow.

    • Read your context and instructions
    • Compiled the agent handoff contract
    HANDOFF CONTRACT (Bug Analyzer -> Fix Proposer)
version: 1
input: { issue_id: int, file_path: str, stack_trace: str, root_cause: str }
output: { proposed_fix: str, test_case: str }
idempotency_key: issue_id + "fix_generation"
on_invalid: reject to 'Rework' queue; do not pass to Fix Proposer.

    Connects securely to your tools. The creator never sees your data.

    About this skill

    Eliminate Handoff Failures in Multi-Agent Pipelines

    In multi-agent systems, the most frequent failure point is the handoff. When one agent passed a "blob of prose" to another, intent gets lost, retries cause duplicate actions, and downstream agents fail because of malformed inputs. This developer-centric skill provides a formal framework for establishing Handoff Contracts between agents.

    What it does

    It transforms fragile agent-to-agent communication into a structured, testable, and idempotent handshake. Instead of letting agents "figure it out," this skill forces a defined schema for inputs and outputs, explicit success criteria, and stable idempotency keys to ensure retries are safe.

    Why use this skill

    • Prevent Duplicates: Use idempotency keys to ensure side effects (like sending emails or charging cards) only happen once.
    • Fail Fast: Implement 'on_invalid' logic to catch malformed data at the source before it poisons downstream tasks.
    • Testable Pipelines: Create versioned schemas that allow you to unit test individual agents in your chain.
    • Framework Agnostic: Compatible with LangChain, AutoGen, CrewAI, or custom Python/Node agents.

    The Output

    The skill produces a structured contract definition including versioning, specific data types for input/output, validation logic, and a recovery strategy for invalid transitions. This acts as the "API Specification" for your agent interactions.

    • Defines the contract only: does not provide the execution runtime.
    • Limited to 2-agent handoffs per contract.
    • Requires manual schema syncing between producer and consumer.

    How to use

    1. 1

      Connect your agent to the Agensi MCP

      Copy the prompt and paste it into Claude, ChatGPT, Cursor or any agent that supports MCP. It sets up the connection for you. Manual setup

    2. 2

      Sign in to Agensi

      Your agent shows a sign-in link. Sign in and click Allow.

    3. 3

      Ask for what you need

      Your agent loads this skill and uses it on your task. It always asks before any payment.

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    6 uses

    Times used to date

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    Trust & safety

    Security scan

    Security scan passed 4 months ago

    • Free with an Agensi account

    Permissions

    No special permissions declared or detected

    Listed4 months ago

    What's inside

    Frequently Asked Questions

    It provides a standardized framework of schemas, idempotency keys, and validation logic that replaces unpredictable text-based handoffs with rigid, API-like contracts.

    Yes, this skill is framework-agnostic and designed to integrate seamlessly with LangChain, AutoGen, CrewAI, or any custom Python and Node.js agent implementation.

    The skill includes the core contract definition logic, implementation templates for common handoff scenarios, and a library of 'on_invalid' recovery strategies to handle malformed data.

    The skill uses versioned schemas, allowing you to update specific agents in your pipeline without breaking the entire chain, as downstream agents will only accept data matching their required contract version.

    It is highly recommended for any process involving side effects, such as sending emails, database writes, or financial transactions, where a retry without an idempotency key could cause duplicate actions.

    New in Agents & Orchestration

    Free