Bug: run_shell_command fails with 'Cannot read properties of undefined (reading \'publish\')'

[sehoon38]

What happened?

When Gemini CLI attempts to run git checkout or git branch commands via the run_shell_command tool, it fails with an internal tool error: Cannot read properties of undefined (reading 'publish'). This happens consistently for branch creation/switching commands.

What did you expect to happen?

The tool should execute the shell command (git checkout -b <branch> or similar) successfully and return the command output.

Client information

Client Information

macOS
gemini-cli-core 0.35.0-nightly

Login information

n/a

Anything else we need to know?

This error is blocking automated PR creation workflows since the agent cannot create or switch to new branches when trying to use the GitHub Issue/PR creator skills.

[aishaneeshah]

From @SandyTao520 -->

The previous analysis above was incorrect.

The real root cause was in packages/core/src/scheduler/policy.ts. The code was using the spread operator on the AgentLoopContext instance (which is usually a Config instance):

const deps = { ...context, toolInvocation };

In JavaScript, the spread operator only copies own enumerable properties. It does not copy prototype getters. Since messageBus and config are defined as getters on the Config prototype, they were missing from the resulting deps object. This caused deps.messageBus to be undefined, leading to the crash when the code later attempted to call .publish() on it.

This only triggered when the user selected "Always allow" because that is the path that invokes updatePolicy. Auto-allowed commands bypass this logic.

Fix:
Explicitly map the required properties from the context instead of spreading the object:

const deps = {
  config: context.config,
  messageBus: context.messageBus,
  toolInvocation,
};