fix(self-evolving-tools): keep bare object schemas empty

[santhreal]

normalize_schema turned {"type":"object"} into a schema with a nested properties type object.

Keep bare object schemas empty.

[coderabbitai]

Warning

Review limit reached

@santhreal, you've reached your PR review limit, so we couldn't start this review.

Next review available in: 48 minutes

Enable usage-based reviews in Billing to review now. Otherwise, wait until the next included review is available.
You're only billed for reviews past your plan's rate limits ($0.25/file).

How can I continue?

After more reviews become available, a review can be triggered using the @coderabbitai review command as a PR comment. Alternatively, push new commits to this PR.

To avoid repeated limits, reduce automatic review volume by pausing incremental auto-reviews earlier, using label-based review opt-in, excluding WIP or generated PR titles, or requesting reviews manually when the PR is ready. If your team needs uninterrupted high-volume reviews, an organization admin can enable usage-based reviews.

How do review limits work?

CodeRabbit enforces per-developer PR review limits for each organization. Most developers receive the normal plan review availability.

For paid Pro and Pro+ PR reviews, CodeRabbit uses adaptive limits for sustained high-volume activity. When a developer's recent PR review activity reaches the 95th percentile or higher among CodeRabbit users, additional reviews become available more gradually as earlier reviews age out of the rolling window.

Please refer docs for additional details.

Review details

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro Plus

Run ID: dc8ebc2e-720a-44af-ab6e-3bda0579fc4a

📥 Commits

Reviewing files that changed from the base of the PR and between 7fb5692 and 5d82595.

📒 Files selected for processing (2)

• chapter8/self-evolving-tools/test_normalize_schema_bare_object.py
• chapter8/self-evolving-tools/tool_manager.py

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

---

_{Comment @coderabbitai help to get the list of available commands.}

[bojieli]

This fixes the bare-object case by rebuilding every type=object schema from only type, properties, and required. That silently drops valid existing keywords such as description, additionalProperties, and $defs; the previous valid-object path preserved them. Please copy the original object schema and default only the missing properties field, with a regression test that verifies extra schema metadata is retained.