# 源码节选（自动生成，非完整文件）

- 源文件: `open-code-review/internal/llm/protocol.go`
- 总行数: 73 | 节选: 头部 30 行 + 2 个关键符号
- 完整源码见 `open-code-review/`（同留档目录）

## 文件头

```go
// SPDX-License-Identifier: Apache-2.0
// Copyright 2026 alibaba/open-code-review Contributors

package llm

import (
	"fmt"
	"strings"
)

// Canonical protocol identifiers understood by the LLM client factory and
// resolver. These are the only values produced by NormalizeProtocol for known
// protocols; downstream code (NewLLMClient switch, resolver branches) compares
// against these constants exclusively.
//
// Naming convention: <vendor>-<flavor>. New built-in protocols should add a
// constant here, extend ValidateProtocol's whitelist, and add a case to
// NewLLMClient.
const (
	// ProtocolAnthropic is the Anthropic Messages API spoken directly to
	// api.anthropic.com (or a compatible gateway).
	ProtocolAnthropic = "anthropic"
	// ProtocolOpenAIChatCompletions is the OpenAI Chat Completions API
	// (/v1/chat/completions). The value "openai" is kept for full backward
	// compatibility with existing config files.
	ProtocolOpenAIChatCompletions = "openai"
	// ProtocolOpenAIResponses is the OpenAI Responses API (/v1/responses),
	// used by GPT-5.x / o-series models.
	ProtocolOpenAIResponses = "openai-responses"
	// ProtocolAnthropicBedrock is the Anthropic Messages API served by AWS
```

## 关键符号（行号 → 定义）

```go
    45  func NormalizeProtocol(raw string) string {
    65  func ValidateProtocol(p string) error {
```