fix(review): prevent empty deep reviews

[luckyPipewrench]

Deep reviews use xhigh reasoning, but the existing 25,000-token shared ceiling can be consumed entirely by reasoning, leaving no visible review. Raise the shared ceiling to 64,000 and pin the deep reasoning settings in the runner tests. Default reviews are unchanged.

Summary by CodeRabbit

• Enhancements
  • Deep reviews can now generate more comprehensive responses with a larger output limit.
  • Improved reasoning quality for deep review results.

[coderabbitai]

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Review details

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: e3c6aad9-0083-4fda-bb71-9477f04eebab

📥 Commits

Reviewing files that changed from the base of the PR and between a2f60ed and af2a2c0.

📒 Files selected for processing (1)

• tests/test_pr_review_routing.py

📝 Walkthrough

Walkthrough

Deep reviews now allow up to 64,000 completion tokens and use xhigh reasoning effort. Fast-mode settings and timeout values remain unchanged.

Changes

Deep review settings

Layer / File(s)	Summary
Update deep review configuration scripts/pr-review.py	DEEP_MAX_COMPLETION_TOKENS increases from 25000 to 64000. DEEP_REASONING_EFFORT changes from medium to xhigh. Fast-mode settings remain unchanged.

Estimated code review effort: 1 (Trivial) | ~2 minutes

🚥 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 purpose of increasing deep-review limits to prevent empty reviews.
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 fix/deep-review-contract

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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 `@scripts/pr-review.py`:
- Around line 55-56: Update the expected deep reasoning effort in the deep-mode
routing test in test_pr_review_routing.py to match DEEP_REASONING_EFFORT, which
is now "xhigh", while preserving the existing routing assertions.

🪄 Autofix

Fix all unresolved CodeRabbit comments on this PR:

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

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 8ed9d550-b16b-42ed-b078-8d8685cc618f

📥 Commits

Reviewing files that changed from the base of the PR and between c1f98ea and a2f60ed.

📒 Files selected for processing (1)

• scripts/pr-review.py