fix: If top_p is not provided, ignore it

[seefs001]

Summary by CodeRabbit

• Bug Fixes
  • Corrected initialization of a sampling parameter for Claude Opus models in adaptive and extended thinking modes so defaults are applied consistently.

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 3244cdc4-cec0-42c0-8154-aab8c19e606b

📥 Commits

Reviewing files that changed from the base of the PR and between 267c99b and be8a623.

📒 Files selected for processing (1)

• relay/claude_handler.go

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Walkthrough

Removed explicit assignments that set TopP = 0 in two Claude thinking-related code paths; all other parameter initializations and control flow remain unchanged.

Changes

Cohort / File(s)	Summary
Claude handler relay/claude_handler.go	Removed explicit TopP = 0 assignments in two thinking-related branches (adaptive thinking and ThinkingAdapterEnabled with -thinking suffix). Other initializations (e.g., OutputConfig, Temperature, Thinking, model adjustments) unchanged.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~4 minutes

Possibly related PRs

• Update relay-claude.go #1385: Modifies TopP/TopK behavior for the Claude "-thinking" path and is directly related to TopP handling.

Poem

🐰 I hop through code at break of dawn,
A quiet tweak — a zero's gone.
Defaults now hum where numbers slept,
Claude thinks on, no zero kept. ✨

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: conditionally setting TopP to 1 when not provided for Claude models, which matches the code modification in claude_handler.go.

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