UAT: TuiMaterializer class missing — A2A event bus subscription not implemented #10320

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opened 2026-04-18 08:42:27 +00:00 by HAL9000 · 0 comments

HAL9000 commented

2026-04-18 08:42:27 +00:00

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Commit Message: feat(tui): implement TuiMaterializer class with A2A event bus subscription
Branch: feat/tui-materializer-a2a-integration

Background and Context

During UAT testing of the TuiMaterializer A2A Integration feature area, it was discovered that the TuiMaterializer class does not exist in the codebase. The spec requires that TuiMaterializer subscribes to the A2A event bus and maps ElementHandle types to Textual widget types.

Evidence of the missing implementation:

src/cleveragents/tui/materializer.py does not exist
A compiled bytecode file src/cleveragents/tui/__pycache__/materializer.cpython-313.pyc exists, indicating the source file was previously present but has been deleted
No TuiMaterializer class is importable from cleveragents.tui
No A2A event bus subscription exists anywhere in the TUI module

Expected Behavior (from spec)

Per the TuiMaterializer A2A Integration specification:

A TuiMaterializer class must exist in src/cleveragents/tui/materializer.py
TuiMaterializer must subscribe to the A2A event bus (A2aEventQueue) on initialization
TuiMaterializer must map ElementHandle types to Textual widget types (ThoughtBlockWidget, ToolCallWidget, ToolResultWidget, TextBlockWidget, ErrorBlockWidget, PermissionQuestionWidget)
The materializer must handle A2A events and update the TUI conversation stream accordingly

Actual Behavior

src/cleveragents/tui/materializer.py does not exist (source file missing)
TuiMaterializer cannot be imported
No A2A event bus subscription is wired in the TUI module
The TUI app (CleverAgentsTuiApp) has no connection to the A2A event system

Steps to Reproduce

from cleveragents.tui.materializer import TuiMaterializer
# ModuleNotFoundError: No module named 'cleveragents.tui.materializer'

Acceptance Criteria

src/cleveragents/tui/materializer.py exists with a TuiMaterializer class
TuiMaterializer subscribes to A2aEventQueue on initialization via subscribe_local()
TuiMaterializer maps ElementHandle types to the correct Textual widget types
TuiMaterializer is exported from cleveragents.tui
A2A event bus subscription is wired in the TUI app startup
All existing tests continue to pass
New Behave BDD scenarios cover TuiMaterializer A2A subscription behavior
Coverage remains >= 97%

Subtasks

Create src/cleveragents/tui/materializer.py with TuiMaterializer class
Implement A2A event bus subscription in TuiMaterializer.__init__
Implement ElementHandle → Textual widget type mapping
Wire TuiMaterializer into CleverAgentsTuiApp startup
Export TuiMaterializer from cleveragents.tui
Add Behave BDD scenarios for A2A subscription behavior
Verify coverage >= 97% via nox -s coverage_report
Run nox (all default sessions), fix any errors

Definition of Done

This issue is complete when:

All subtasks above are completed and checked off.
A Git commit is created where the first line of the commit message matches the Commit Message in Metadata exactly, followed by a blank line, then additional lines providing relevant details about the implementation.
The commit is pushed to the remote on the branch matching the Branch in Metadata exactly.
The commit is submitted as a pull request to master, reviewed, and merged before this issue is marked done.

Automated by CleverAgents Bot
Supervisor: UAT Test Pool | Agent: uat-test-pool-supervisor

## Metadata - **Commit Message**: `feat(tui): implement TuiMaterializer class with A2A event bus subscription` - **Branch**: `feat/tui-materializer-a2a-integration` ## Background and Context During UAT testing of the TuiMaterializer A2A Integration feature area, it was discovered that the `TuiMaterializer` class does not exist in the codebase. The spec requires that `TuiMaterializer` subscribes to the A2A event bus and maps `ElementHandle` types to Textual widget types. Evidence of the missing implementation: - `src/cleveragents/tui/materializer.py` does not exist - A compiled bytecode file `src/cleveragents/tui/__pycache__/materializer.cpython-313.pyc` exists, indicating the source file was previously present but has been deleted - No `TuiMaterializer` class is importable from `cleveragents.tui` - No A2A event bus subscription exists anywhere in the TUI module ## Expected Behavior (from spec) Per the TuiMaterializer A2A Integration specification: - A `TuiMaterializer` class must exist in `src/cleveragents/tui/materializer.py` - `TuiMaterializer` must subscribe to the A2A event bus (`A2aEventQueue`) on initialization - `TuiMaterializer` must map `ElementHandle` types to Textual widget types (ThoughtBlockWidget, ToolCallWidget, ToolResultWidget, TextBlockWidget, ErrorBlockWidget, PermissionQuestionWidget) - The materializer must handle A2A events and update the TUI conversation stream accordingly ## Actual Behavior - `src/cleveragents/tui/materializer.py` does not exist (source file missing) - `TuiMaterializer` cannot be imported - No A2A event bus subscription is wired in the TUI module - The TUI app (`CleverAgentsTuiApp`) has no connection to the A2A event system ## Steps to Reproduce ```python from cleveragents.tui.materializer import TuiMaterializer # ModuleNotFoundError: No module named 'cleveragents.tui.materializer' ``` ## Acceptance Criteria - [ ] `src/cleveragents/tui/materializer.py` exists with a `TuiMaterializer` class - [ ] `TuiMaterializer` subscribes to `A2aEventQueue` on initialization via `subscribe_local()` - [ ] `TuiMaterializer` maps `ElementHandle` types to the correct Textual widget types - [ ] `TuiMaterializer` is exported from `cleveragents.tui` - [ ] A2A event bus subscription is wired in the TUI app startup - [ ] All existing tests continue to pass - [ ] New Behave BDD scenarios cover TuiMaterializer A2A subscription behavior - [ ] Coverage remains >= 97% ## Subtasks - [ ] Create `src/cleveragents/tui/materializer.py` with `TuiMaterializer` class - [ ] Implement A2A event bus subscription in `TuiMaterializer.__init__` - [ ] Implement `ElementHandle` → Textual widget type mapping - [ ] Wire `TuiMaterializer` into `CleverAgentsTuiApp` startup - [ ] Export `TuiMaterializer` from `cleveragents.tui` - [ ] Add Behave BDD scenarios for A2A subscription behavior - [ ] Verify coverage >= 97% via `nox -s coverage_report` - [ ] Run `nox` (all default sessions), fix any errors ## Definition of Done This issue is complete when: - All subtasks above are completed and checked off. - A Git commit is created where the **first line** of the commit message matches the Commit Message in Metadata exactly, followed by a blank line, then additional lines providing relevant details about the implementation. - The commit is pushed to the remote on the branch matching the **Branch** in Metadata exactly. - The commit is submitted as a **pull request** to `master`, reviewed, and **merged** before this issue is marked done. --- **Automated by CleverAgents Bot** Supervisor: UAT Test Pool | Agent: uat-test-pool-supervisor

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2026-04-18 08:46:01 +00:00

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