Fixed the bug that crashes the program if no policy file was attached.

[Saaketh0]

A one line fix for #14 . Instead of crashing the program, this fix would just return an empty list of policies, having the same effect as no policy.

In addition, fixed one of the example files to reflect the removal of the "Stub" suffix.

Summary by CodeRabbit

• Bug Fixes

  • Policy publication now proceeds correctly when no policy file is present.
  • Policy rule counts remain available even when no rules have been configured.

• Improvements

  • The example workflow now uses the standard example agent, while deployment and greeting behavior remain unchanged.

[coderabbitai]

📝 Walkthrough

Walkthrough

The Hello World workflow now uses ExampleAgent. Global policy loading now returns an empty rule list when policy.yaml is absent.

Changes

Workflow agent update

Layer / File(s)	Summary
Use ExampleAgent examples/helloworld/workflow/example_workflow.py	The workflow imports and instantiates ExampleAgent instead of ExampleAgentStub.

Policy loading update

Layer / File(s)	Summary
Handle missing policy files ventis/controller/global_controller.py	The missing-policy-file branch returns an empty rule list instead of None.

Estimated code review effort: 2 (Simple) | ~10 minutes

Suggested reviewers: iidsample

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly describes the main change: fixing the crash that occurs when no policy file is attached.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch bug/policy-crashes

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@examples/helloworld/workflow/example_workflow.py`:
- Around line 18-22: Update main after calling ExampleAgent.hello() to treat its
result as a string and return or print greeting directly, removing the
greeting.value() call while preserving the existing workflow behavior.

🪄 Autofix

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 89fb6c6f-80d3-4cb0-9317-59b03823acf3

📥 Commits

Reviewing files that changed from the base of the PR and between 48f7ee7 and e39b1ef.

📒 Files selected for processing (2)

• examples/helloworld/workflow/example_workflow.py
• ventis/controller/global_controller.py

[coderabbitai]

🩺 Stability & Availability | 🔴 Critical | ⚡ Quick win

Update the greeting extraction for ExampleAgent.

ExampleAgent.hello() returns a str, but main still calls greeting.value() at Line 24. This causes an AttributeError for every invocation. Return greeting directly or adapt the workflow to the new return type.

Proposed fix

-    return {"greeting": greeting.value()}
+    return {"greeting": greeting}

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@examples/helloworld/workflow/example_workflow.py` around lines 18 - 22,
Update main after calling ExampleAgent.hello() to treat its result as a string
and return or print greeting directly, removing the greeting.value() call while
preserving the existing workflow behavior.