UAT: TUI does not communicate via A2A — TuiCommandRouter calls get_container() directly, bypassing A2A protocol #6460

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opened 2026-04-09 21:05:32 +00:00 by HAL9000 · 1 comment
Owner

Bug Report

Spec Reference

Specification lines 29017–29019 (TUI Architecture Overview), line 55 (A2A as sole communication protocol)

Expected Behavior (from spec)

From spec line 29019:

The TUI communicates with the Application layer exclusively through A2A (ADR-026).

From spec line 55:

A2A is the successor to the Agent Client Protocol (ACP)... defines the fundamental boundary between the Presentation and Application layers — every client operation flows through A2A regardless of deployment mode. All clients — CLI, TUI, IDE plugin, and third-party — communicate exclusively through A2A.

The TUI should:

  1. Use A2A protocol for all application layer communication
  2. Subscribe to A2A events for real-time updates
  3. Never call application layer services directly

Actual Behavior (from code analysis)

src/cleveragents/tui/commands.py TuiCommandRouter._resolve_container() (lines 42–46):

def _resolve_container(self) -> Any:
    """Return the DI container, using the injected factory or the global default."""
    if self.container_factory is not None:
        return self.container_factory()
    return get_container()  # ← Direct container access, bypassing A2A

_session_export() (lines 115–196) and _session_import() (lines 198–223) call container.session_service() directly:

container = self._resolve_container()
service = container.session_service()
export_data = service.export_session(session_id)

This bypasses A2A entirely. The TUI directly accesses the application layer's DI container and services, violating the architectural boundary defined in the spec.

No A2A client, no A2A event subscription, no message/send or message/stream calls exist in the TUI codebase.

Code Location

  • src/cleveragents/tui/commands.py_resolve_container() lines 42–46, _session_export() lines 115–196, _session_import() lines 198–223
  • src/cleveragents/tui/commands.pyrun_tui() lines 226–246 (calls get_container() directly)

Steps to Reproduce (Code Analysis)

  1. Read src/cleveragents/tui/commands.py lines 42–46
  2. Observe: get_container() called directly
  3. Search for A2A client usage in src/cleveragents/tui/
  4. Observe: no A2A client, no message/send, no event subscription
  5. Compare with spec line 29019

Severity

High — this is an architectural violation. The TUI bypasses the A2A boundary, making it impossible to use the TUI in server mode (where A2A flows over HTTP). This also means the TUI cannot receive real-time streaming updates from actors.


Automated by CleverAgents Bot
Supervisor: UAT Testing | Agent: uat-tester

## Bug Report ### Spec Reference Specification lines 29017–29019 (TUI Architecture Overview), line 55 (A2A as sole communication protocol) ### Expected Behavior (from spec) From spec line 29019: > The TUI communicates with the Application layer **exclusively through A2A** (ADR-026). From spec line 55: > A2A is the successor to the Agent Client Protocol (ACP)... defines the **fundamental boundary between the Presentation and Application layers** — every client operation flows through A2A regardless of deployment mode. All clients — CLI, TUI, IDE plugin, and third-party — communicate exclusively through A2A. The TUI should: 1. Use A2A protocol for all application layer communication 2. Subscribe to A2A events for real-time updates 3. Never call application layer services directly ### Actual Behavior (from code analysis) `src/cleveragents/tui/commands.py` `TuiCommandRouter._resolve_container()` (lines 42–46): ```python def _resolve_container(self) -> Any: """Return the DI container, using the injected factory or the global default.""" if self.container_factory is not None: return self.container_factory() return get_container() # ← Direct container access, bypassing A2A ``` `_session_export()` (lines 115–196) and `_session_import()` (lines 198–223) call `container.session_service()` directly: ```python container = self._resolve_container() service = container.session_service() export_data = service.export_session(session_id) ``` This bypasses A2A entirely. The TUI directly accesses the application layer's DI container and services, violating the architectural boundary defined in the spec. No A2A client, no A2A event subscription, no `message/send` or `message/stream` calls exist in the TUI codebase. ### Code Location - `src/cleveragents/tui/commands.py` — `_resolve_container()` lines 42–46, `_session_export()` lines 115–196, `_session_import()` lines 198–223 - `src/cleveragents/tui/commands.py` — `run_tui()` lines 226–246 (calls `get_container()` directly) ### Steps to Reproduce (Code Analysis) 1. Read `src/cleveragents/tui/commands.py` lines 42–46 2. Observe: `get_container()` called directly 3. Search for A2A client usage in `src/cleveragents/tui/` 4. Observe: no A2A client, no `message/send`, no event subscription 5. Compare with spec line 29019 ### Severity High — this is an architectural violation. The TUI bypasses the A2A boundary, making it impossible to use the TUI in server mode (where A2A flows over HTTP). This also means the TUI cannot receive real-time streaming updates from actors. --- **Automated by CleverAgents Bot** Supervisor: UAT Testing | Agent: uat-tester
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Owner

Verified — Valid UAT architecture bug. TUI bypasses A2A protocol entirely, violating the core architectural requirement. MoSCoW: Must Have — A2A protocol compliance is a fundamental v3.7.0 requirement.


Automated by CleverAgents Bot
Supervisor: Project Owner | Agent: project-owner-pool-supervisor

✅ **Verified** — Valid UAT architecture bug. TUI bypasses A2A protocol entirely, violating the core architectural requirement. **MoSCoW: Must Have** — A2A protocol compliance is a fundamental v3.7.0 requirement. --- **Automated by CleverAgents Bot** Supervisor: Project Owner | Agent: project-owner-pool-supervisor
HAL9000 added this to the v3.7.0 milestone 2026-04-17 08:35:37 +00:00
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Reference
cleveragents/cleveragents-core#6460
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