feat(server): implement A2A JSON-RPC 2.0 wire format and _cleveragents/ extension method routing #9648

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opened 2026-04-15 01:16:29 +00:00 by HAL9000 · 0 comments

HAL9000 commented

2026-04-15 01:16:29 +00:00

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Metadata

Commit message: feat(server): implement A2A JSON-RPC 2.0 wire format and extension method routing
Branch name: feat/v3.8.0-a2a-jsonrpc-wire-format
Parent Epic: #8677
Milestone: v3.8.0

Background and Context

The A2A protocol uses JSON-RPC 2.0 as its wire format. The _cleveragents/ extension methods need to be routed correctly to enable agent-to-agent communication. This issue implements the foundational wire format and routing layer that all A2A transport mechanisms depend on.

Expected Behavior

Current Behavior

No A2A JSON-RPC 2.0 wire format or _cleveragents/ extension method routing exists.

Expected Behavior

A2A JSON-RPC 2.0 wire format is fully implemented (request, response, error objects)
_cleveragents/ extension method routing correctly dispatches to registered handlers
Request/response serialization and deserialization works correctly end-to-end

Acceptance Criteria

A2A JSON-RPC 2.0 wire format is implemented (request, response, error message types)
_cleveragents/ extension method routing is functional and dispatches correctly
Request/response serialization works correctly for all message types
Integration tests pass with coverage >= 97%

Subtasks

Implement A2A JSON-RPC 2.0 message format (request, response, error)
Implement _cleveragents/ extension method routing
Implement request/response serialization/deserialization
Write integration tests
Verify coverage >= 97%

Definition of Done

This issue should be closed when:

A2A JSON-RPC 2.0 wire format is fully implemented and reviewed
_cleveragents/ extension method routing is functional and tested
All integration tests pass with >= 97% coverage
Code has been reviewed and merged into the feat/v3.8.0-a2a-jsonrpc-wire-format branch
Parent Epic #8677 dependency is satisfied by this implementation

Automated by CleverAgents Bot
Supervisor: Epic Planning | Agent: epic-planning-pool-supervisor [AUTO-EPIC-5]

## Metadata - **Commit message:** `feat(server): implement A2A JSON-RPC 2.0 wire format and extension method routing` - **Branch name:** `feat/v3.8.0-a2a-jsonrpc-wire-format` - **Parent Epic:** #8677 - **Milestone:** v3.8.0 ## Background and Context The A2A protocol uses JSON-RPC 2.0 as its wire format. The `_cleveragents/` extension methods need to be routed correctly to enable agent-to-agent communication. This issue implements the foundational wire format and routing layer that all A2A transport mechanisms depend on. ## Expected Behavior ### Current Behavior No A2A JSON-RPC 2.0 wire format or `_cleveragents/` extension method routing exists. ### Expected Behavior - A2A JSON-RPC 2.0 wire format is fully implemented (request, response, error objects) - `_cleveragents/` extension method routing correctly dispatches to registered handlers - Request/response serialization and deserialization works correctly end-to-end ## Acceptance Criteria - [ ] A2A JSON-RPC 2.0 wire format is implemented (request, response, error message types) - [ ] `_cleveragents/` extension method routing is functional and dispatches correctly - [ ] Request/response serialization works correctly for all message types - [ ] Integration tests pass with coverage >= 97% ## Subtasks - [ ] Implement A2A JSON-RPC 2.0 message format (request, response, error) - [ ] Implement `_cleveragents/` extension method routing - [ ] Implement request/response serialization/deserialization - [ ] Write integration tests - [ ] Verify coverage >= 97% ## Definition of Done This issue should be closed when: 1. A2A JSON-RPC 2.0 wire format is fully implemented and reviewed 2. `_cleveragents/` extension method routing is functional and tested 3. All integration tests pass with >= 97% coverage 4. Code has been reviewed and merged into the `feat/v3.8.0-a2a-jsonrpc-wire-format` branch 5. Parent Epic #8677 dependency is satisfied by this implementation --- **Automated by CleverAgents Bot** Supervisor: Epic Planning | Agent: epic-planning-pool-supervisor [AUTO-EPIC-5]