BUG-HUNT: [error-handling] Missing argument validation in set_commands #6101

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opened 2026-04-09 14:40:38 +00:00 by HAL9000 · 0 comments

HAL9000 commented

2026-04-09 14:40:38 +00:00

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Bug Report: [error-handling] — Missing argument validation in set_commands

Severity Assessment

Impact: Passing invalid arguments (e.g., None for query or a list of incorrect types for commands) could lead to an AttributeError or other unhandled exceptions, causing the TUI to crash.
Likelihood: Medium. While the immediate callers might be safe, this is a public method that could be called from other places in the future with invalid data.
Priority: Medium

Location

File: src/cleveragents/tui/widgets/slash_command_overlay.py
Function/Class: SlashCommandOverlay.set_commands
Lines: 31

Description

The set_commands method in the SlashCommandOverlay class does not perform any validation on its arguments. It directly uses the query and commands arguments without checking if they are of the expected type or if they are None. This can lead to unexpected errors if the method is called with invalid arguments.

Evidence

def set_commands(self, query: str, commands: list[SlashCommandSpec]) -> None:
    filtered = (
        [item for item in commands if item.command.startswith(query)]
        if query
        else list(commands)
    )
    # ...

Expected Behavior

The method should perform validation on its arguments to ensure they are of the expected type and not None. For example, it could raise a TypeError or a ValueError if the arguments are invalid.

Actual Behavior

The method does not perform any argument validation, which can lead to unhandled exceptions if invalid arguments are passed.

Suggested Fix

Add argument validation at the beginning of the method. For example:

if not isinstance(query, str):
    raise TypeError("query must be a string")
if not isinstance(commands, list):
    raise TypeError("commands must be a list")

TDD Note

After this bug issue is verified, a corresponding Type/Testing issue will be
created for TDD. The test will use tags: @tdd_issue, @tdd_issue_,
and @tdd_expected_fail to prove the bug exists before fixing it.

Automated by CleverAgents Bot
Supervisor: Bug Hunting | Agent: bug-hunter

## Bug Report: [error-handling] — Missing argument validation in set_commands ### Severity Assessment - **Impact**: Passing invalid arguments (e.g., `None` for `query` or a list of incorrect types for `commands`) could lead to an `AttributeError` or other unhandled exceptions, causing the TUI to crash. - **Likelihood**: Medium. While the immediate callers might be safe, this is a public method that could be called from other places in the future with invalid data. - **Priority**: Medium ### Location - **File**: `src/cleveragents/tui/widgets/slash_command_overlay.py` - **Function/Class**: `SlashCommandOverlay.set_commands` - **Lines**: 31 ### Description The `set_commands` method in the `SlashCommandOverlay` class does not perform any validation on its arguments. It directly uses the `query` and `commands` arguments without checking if they are of the expected type or if they are `None`. This can lead to unexpected errors if the method is called with invalid arguments. ### Evidence ```python def set_commands(self, query: str, commands: list[SlashCommandSpec]) -> None: filtered = ( [item for item in commands if item.command.startswith(query)] if query else list(commands) ) # ... ``` ### Expected Behavior The method should perform validation on its arguments to ensure they are of the expected type and not `None`. For example, it could raise a `TypeError` or a `ValueError` if the arguments are invalid. ### Actual Behavior The method does not perform any argument validation, which can lead to unhandled exceptions if invalid arguments are passed. ### Suggested Fix Add argument validation at the beginning of the method. For example: ```python if not isinstance(query, str): raise TypeError("query must be a string") if not isinstance(commands, list): raise TypeError("commands must be a list") ``` ### Category error-handling ### TDD Note After this bug issue is verified, a corresponding Type/Testing issue will be created for TDD. The test will use tags: @tdd_issue, @tdd_issue_<this-issue-number>, and @tdd_expected_fail to prove the bug exists before fixing it. --- **Automated by CleverAgents Bot** Supervisor: Bug Hunting | Agent: bug-hunter

HAL9000 referenced this issue

2026-04-09 17:25:53 +00:00

[AUTO-WATCHDOG] System Health Report (Cycle 32) #6184

HAL9000 added the

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2026-04-09 17:28:33 +00:00