Update jsconfig.json and package.json to correct open-sse path references from relative to local directory.

This commit is contained in:
decolua
2026-01-05 10:37:09 +07:00
parent 3857598de4
commit e35421beb1
39 changed files with 6846 additions and 6 deletions

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// Format identifiers
export const FORMATS = {
OPENAI: "openai",
OPENAI_RESPONSES: "openai-responses",
OPENAI_RESPONSE: "openai-response",
CLAUDE: "claude",
GEMINI: "gemini",
GEMINI_CLI: "gemini-cli",
CODEX: "codex",
ANTIGRAVITY: "antigravity"
};

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import { register } from "../index.js";
import { FORMATS } from "../formats.js";
// Create OpenAI chunk helper
function createChunk(state, delta, finishReason = null) {
return {
id: `chatcmpl-${state.messageId}`,
object: "chat.completion.chunk",
created: Math.floor(Date.now() / 1000),
model: state.model,
choices: [{
index: 0,
delta,
finish_reason: finishReason
}]
};
}
// Convert Claude stream chunk to OpenAI format
function claudeToOpenAIResponse(chunk, state) {
if (!chunk) return null;
const results = [];
const event = chunk.type;
switch (event) {
case "message_start": {
state.messageId = chunk.message?.id || `msg_${Date.now()}`;
state.model = chunk.message?.model;
state.toolCallIndex = 0; // Reset tool call counter for OpenAI format
console.log("🔍 ----------- toolCallIndex", state.toolCallIndex);
results.push(createChunk(state, { role: "assistant" }));
break;
}
case "content_block_start": {
const block = chunk.content_block;
if (block?.type === "text") {
state.textBlockStarted = true;
} else if (block?.type === "thinking") {
// console.log("🧠 Thinking block started");
state.inThinkingBlock = true;
state.currentBlockIndex = chunk.index;
results.push(createChunk(state, { content: "<think>" }));
} else if (block?.type === "tool_use") {
// OpenAI format: tool_calls index must be independent and start from 0
const toolCallIndex = state.toolCallIndex++;
const toolCall = {
index: toolCallIndex,
id: block.id,
type: "function",
function: {
name: block.name,
arguments: ""
}
};
// Map Claude content_block index to OpenAI tool_call index
state.toolCalls.set(chunk.index, toolCall);
results.push(createChunk(state, { tool_calls: [toolCall] }));
}
break;
}
case "content_block_delta": {
const delta = chunk.delta;
if (delta?.type === "text_delta" && delta.text) {
results.push(createChunk(state, { content: delta.text }));
} else if (delta?.type === "thinking_delta" && delta.thinking) {
// Stream thinking content
results.push(createChunk(state, { content: delta.thinking }));
} else if (delta?.type === "input_json_delta" && delta.partial_json) {
const toolCall = state.toolCalls.get(chunk.index);
if (toolCall) {
toolCall.function.arguments += delta.partial_json;
// Include both index and id for better client compatibility
results.push(createChunk(state, {
tool_calls: [{
index: toolCall.index,
id: toolCall.id,
function: { arguments: delta.partial_json }
}]
}));
}
}
break;
}
case "content_block_stop": {
if (state.inThinkingBlock && chunk.index === state.currentBlockIndex) {
// console.log("✅ Thinking block ended");
results.push(createChunk(state, { content: "</think>" }));
state.inThinkingBlock = false;
}
state.textBlockStarted = false;
state.thinkingBlockStarted = false;
break;
}
case "message_delta": {
if (chunk.delta?.stop_reason) {
state.finishReason = convertStopReason(chunk.delta.stop_reason);
// Send the final chunk with finish_reason immediately
results.push({
id: `chatcmpl-${state.messageId}`,
object: "chat.completion.chunk",
created: Math.floor(Date.now() / 1000),
model: state.model,
choices: [{
index: 0,
delta: {},
finish_reason: state.finishReason
}]
});
state.finishReasonSent = true;
}
// Usage is now extracted in stream.js extractUsage()
break;
}
case "message_stop": {
// CLIProxyAPI and OpenAI standard: message_stop should send the final chunk with finish_reason
// This ensures proper signaling to the client that the response is complete
// Only send a chunk if we haven't already sent the finish_reason in message_delta
// In some cases, finish_reason might not have been sent yet
if (!state.finishReasonSent) {
const finishReason = state.finishReason || (state.toolCalls?.size > 0 ? "tool_calls" : "stop");
results.push({
id: `chatcmpl-${state.messageId}`,
object: "chat.completion.chunk",
created: Math.floor(Date.now() / 1000),
model: state.model,
choices: [{
index: 0,
delta: {},
finish_reason: finishReason
}],
...(state.usage && {
usage: {
prompt_tokens: state.usage.input_tokens || 0,
completion_tokens: state.usage.output_tokens || 0,
total_tokens: (state.usage.input_tokens || 0) + (state.usage.output_tokens || 0)
}
})
});
state.finishReasonSent = true;
}
break;
}
}
return results.length > 0 ? results : null;
}
// Helper: stop thinking block if started
function stopThinkingBlock(state, results) {
if (!state.thinkingBlockStarted) return;
results.push({
type: "content_block_stop",
index: state.thinkingBlockIndex
});
state.thinkingBlockStarted = false;
}
// Helper: stop text block if started
function stopTextBlock(state, results) {
if (!state.textBlockStarted || state.textBlockClosed) return;
state.textBlockClosed = true;
results.push({
type: "content_block_stop",
index: state.textBlockIndex
});
state.textBlockStarted = false;
}
// Convert OpenAI stream chunk to Claude format
function openaiToClaudeResponse(chunk, state) {
if (!chunk || !chunk.choices?.[0]) return null;
const results = [];
const choice = chunk.choices[0];
const delta = choice.delta;
// First chunk - ALWAYS send message_start first
if (!state.messageStartSent) {
state.messageStartSent = true;
state.messageId = chunk.id?.replace("chatcmpl-", "") || `msg_${Date.now()}`;
if (!state.messageId || state.messageId === "chat" || state.messageId.length < 8) {
state.messageId = chunk.extend_fields?.requestId ||
chunk.extend_fields?.traceId ||
`msg_${Date.now()}`;
}
state.model = chunk.model || "unknown";
state.nextBlockIndex = 0;
results.push({
type: "message_start",
message: {
id: state.messageId,
type: "message",
role: "assistant",
model: state.model,
content: [],
stop_reason: null,
stop_sequence: null,
usage: { input_tokens: 0, output_tokens: 0 }
}
});
}
// Handle reasoning_content (thinking) - GLM, DeepSeek, etc.
const reasoningContent = delta?.reasoning_content || delta?.reasoning;
if (reasoningContent) {
// Stop text block before thinking
stopTextBlock(state, results);
// Start thinking block if needed
if (!state.thinkingBlockStarted) {
state.thinkingBlockIndex = state.nextBlockIndex++;
state.thinkingBlockStarted = true;
results.push({
type: "content_block_start",
index: state.thinkingBlockIndex,
content_block: { type: "thinking", thinking: "" }
});
}
// Send thinking delta
results.push({
type: "content_block_delta",
index: state.thinkingBlockIndex,
delta: { type: "thinking_delta", thinking: reasoningContent }
});
}
// Handle regular content
if (delta?.content) {
// Stop thinking block before text
stopThinkingBlock(state, results);
// Start text block if needed
if (!state.textBlockStarted) {
state.textBlockIndex = state.nextBlockIndex++;
state.textBlockStarted = true;
state.textBlockClosed = false;
results.push({
type: "content_block_start",
index: state.textBlockIndex,
content_block: { type: "text", text: "" }
});
}
// Send text delta
results.push({
type: "content_block_delta",
index: state.textBlockIndex,
delta: { type: "text_delta", text: delta.content }
});
}
// Tool calls
if (delta?.tool_calls) {
for (const tc of delta.tool_calls) {
const idx = tc.index ?? 0;
if (tc.id) {
// Stop thinking and text blocks before tool use
stopThinkingBlock(state, results);
stopTextBlock(state, results);
// New tool call
const toolBlockIndex = state.nextBlockIndex++;
state.toolCalls.set(idx, { id: tc.id, name: tc.function?.name || "", blockIndex: toolBlockIndex });
results.push({
type: "content_block_start",
index: toolBlockIndex,
content_block: {
type: "tool_use",
id: tc.id,
name: tc.function?.name || "",
input: {}
}
});
}
if (tc.function?.arguments) {
const toolInfo = state.toolCalls.get(idx);
if (toolInfo) {
results.push({
type: "content_block_delta",
index: toolInfo.blockIndex,
delta: { type: "input_json_delta", partial_json: tc.function.arguments }
});
}
}
}
}
// Finish
if (choice.finish_reason) {
// Stop all open blocks
stopThinkingBlock(state, results);
stopTextBlock(state, results);
// Close tool call blocks
for (const [, toolInfo] of state.toolCalls) {
results.push({
type: "content_block_stop",
index: toolInfo.blockIndex
});
}
results.push({
type: "message_delta",
delta: { stop_reason: convertFinishReason(choice.finish_reason) },
usage: { output_tokens: 0 }
});
results.push({ type: "message_stop" });
}
return results.length > 0 ? results : null;
}
// Convert Claude stop_reason to OpenAI finish_reason
function convertStopReason(reason) {
switch (reason) {
case "end_turn": return "stop";
case "max_tokens": return "length";
case "tool_use": return "tool_calls";
case "stop_sequence": return "stop";
default: return "stop";
}
}
// Convert OpenAI finish_reason to Claude stop_reason
function convertFinishReason(reason) {
switch (reason) {
case "stop": return "end_turn";
case "length": return "max_tokens";
case "tool_calls": return "tool_use";
default: return "end_turn";
}
}
// Register
register(FORMATS.CLAUDE, FORMATS.OPENAI, null, claudeToOpenAIResponse);
register(FORMATS.OPENAI, FORMATS.CLAUDE, null, openaiToClaudeResponse);

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import { register } from "../index.js";
import { FORMATS } from "../formats.js";
import { DEFAULT_THINKING_GEMINI_SIGNATURE } from "../../config/defaultThinkingSignature.js";
import {
UNSUPPORTED_SCHEMA_CONSTRAINTS,
DEFAULT_SAFETY_SETTINGS,
convertOpenAIContentToParts,
extractTextContent,
tryParseJSON,
generateRequestId,
generateSessionId,
generateProjectId,
cleanJSONSchemaForAntigravity
} from "../helpers/geminiHelper.js";
// ============================================
// REQUEST TRANSLATORS: OpenAI -> Gemini/GeminiCLI/Antigravity
// ============================================
// Core: Convert OpenAI request to Gemini format (base for all variants)
function openaiToGeminiBase(model, body, stream) {
const result = {
model: model,
contents: [],
generationConfig: {},
safetySettings: DEFAULT_SAFETY_SETTINGS
};
// Generation config
if (body.temperature !== undefined) {
result.generationConfig.temperature = body.temperature;
}
if (body.top_p !== undefined) {
result.generationConfig.topP = body.top_p;
}
if (body.top_k !== undefined) {
result.generationConfig.topK = body.top_k;
}
if (body.max_tokens !== undefined) {
result.generationConfig.maxOutputTokens = body.max_tokens;
}
// Build tool_call_id -> name map
const tcID2Name = {};
if (body.messages && Array.isArray(body.messages)) {
for (const msg of body.messages) {
if (msg.role === "assistant" && msg.tool_calls) {
for (const tc of msg.tool_calls) {
if (tc.type === "function" && tc.id && tc.function?.name) {
tcID2Name[tc.id] = tc.function.name;
}
}
}
}
}
// Build tool responses cache
const toolResponses = {};
if (body.messages && Array.isArray(body.messages)) {
for (const msg of body.messages) {
if (msg.role === "tool" && msg.tool_call_id) {
toolResponses[msg.tool_call_id] = msg.content;
}
}
}
// Convert messages
if (body.messages && Array.isArray(body.messages)) {
for (let i = 0; i < body.messages.length; i++) {
const msg = body.messages[i];
const role = msg.role;
const content = msg.content;
if (role === "system" && body.messages.length > 1) {
result.systemInstruction = {
role: "user",
parts: [{ text: typeof content === "string" ? content : extractTextContent(content) }]
};
} else if (role === "user" || (role === "system" && body.messages.length === 1)) {
const parts = convertOpenAIContentToParts(content);
if (parts.length > 0) {
result.contents.push({ role: "user", parts });
}
} else if (role === "assistant") {
const parts = [];
if (content) {
const text = typeof content === "string" ? content : extractTextContent(content);
if (text) {
parts.push({ text });
}
}
if (msg.tool_calls && Array.isArray(msg.tool_calls)) {
const toolCallIds = [];
for (const tc of msg.tool_calls) {
if (tc.type !== "function") continue;
const args = tryParseJSON(tc.function?.arguments || "{}");
parts.push({
thoughtSignature: DEFAULT_THINKING_GEMINI_SIGNATURE,
functionCall: {
id: tc.id,
name: tc.function.name,
args: args
}
});
toolCallIds.push(tc.id);
}
if (parts.length > 0) {
result.contents.push({ role: "model", parts });
}
// Append function responses - extract name from tool_call_id format "ToolName-timestamp-index"
const toolParts = [];
for (const fid of toolCallIds) {
// Try to get name from tcID2Name map first, then extract from id format
let name = tcID2Name[fid];
if (!name) {
// Extract name from id format: "ToolName-timestamp-index"
const idParts = fid.split("-");
if (idParts.length > 2) {
name = idParts.slice(0, -2).join("-");
} else {
name = fid;
}
}
let resp = toolResponses[fid] || "{}";
let parsedResp = tryParseJSON(resp);
if (parsedResp === null) {
parsedResp = { result: resp };
} else if (typeof parsedResp !== "object") {
parsedResp = { result: parsedResp };
}
toolParts.push({
functionResponse: {
id: fid,
name: name,
response: { result: parsedResp }
}
});
}
if (toolParts.length > 0) {
result.contents.push({ role: "user", parts: toolParts });
}
} else if (parts.length > 0) {
result.contents.push({ role: "model", parts });
}
}
}
}
// Convert tools
if (body.tools && Array.isArray(body.tools) && body.tools.length > 0) {
const functionDeclarations = [];
for (const t of body.tools) {
if (t.type === "function" && t.function) {
const fn = t.function;
functionDeclarations.push({
name: fn.name,
description: fn.description || "",
parameters: fn.parameters || { type: "object", properties: {} }
});
}
}
if (functionDeclarations.length > 0) {
result.tools = [{ functionDeclarations }];
}
}
return result;
}
// OpenAI -> Gemini (standard API)
function openaiToGemini(model, body, stream) {
return openaiToGeminiBase(model, body, stream);
}
// OpenAI -> Gemini CLI (Cloud Code Assist)
function openaiToGeminiCLI(model, body, stream) {
const gemini = openaiToGeminiBase(model, body, stream);
const isClaude = model.toLowerCase().includes("claude");
// Add thinking config for CLI
if (body.reasoning_effort) {
const budgetMap = { low: 1024, medium: 8192, high: 32768 };
const budget = budgetMap[body.reasoning_effort] || 8192;
gemini.generationConfig.thinkingConfig = {
thinkingBudget: budget,
include_thoughts: true
};
}
// Thinking config from Claude format
if (body.thinking?.type === "enabled" && body.thinking.budget_tokens) {
gemini.generationConfig.thinkingConfig = {
thinkingBudget: body.thinking.budget_tokens,
include_thoughts: true
};
}
// Clean schema for tools
// Claude models: use "parameters" (backend converts parametersJsonSchema -> parameters)
// Gemini native: use "parametersJsonSchema" (backend expects this field)
if (gemini.tools?.[0]?.functionDeclarations) {
for (const fn of gemini.tools[0].functionDeclarations) {
if (fn.parameters) {
const cleanedSchema = cleanJSONSchemaForAntigravity(fn.parameters);
if (isClaude) {
fn.parameters = cleanedSchema;
} else {
fn.parametersJsonSchema = cleanedSchema;
delete fn.parameters;
}
}
}
}
return gemini;
}
// Wrap Gemini CLI format in Cloud Code wrapper
function wrapInCloudCodeEnvelope(model, geminiCLI, credentials = null) {
// Use real project ID if available, otherwise generate random
const projectId = credentials?.projectId || generateProjectId();
return {
project: projectId,
model: model,
userAgent: "gemini-cli",
requestId: generateRequestId(),
request: {
sessionId: generateSessionId(),
contents: geminiCLI.contents,
systemInstruction: geminiCLI.systemInstruction,
generationConfig: geminiCLI.generationConfig,
safetySettings: geminiCLI.safetySettings,
tools: geminiCLI.tools,
}
};
}
// OpenAI -> Antigravity (Sandbox Cloud Code with wrapper)
function openaiToAntigravity(model, body, stream, credentials = null) {
const geminiCLI = openaiToGeminiCLI(model, body, stream);
return wrapInCloudCodeEnvelope(model, geminiCLI, credentials);
}
// ============================================
// RESPONSE TRANSLATORS: Gemini/GeminiCLI/Antigravity -> OpenAI
// ============================================
// Core: Convert Gemini response chunk to OpenAI format
function geminiToOpenAIResponse(chunk, state) {
if (!chunk) return null;
// Handle Antigravity wrapper
const response = chunk.response || chunk;
if (!response || !response.candidates?.[0]) return null;
const results = [];
const candidate = response.candidates[0];
const content = candidate.content;
// Initialize state
if (!state.messageId) {
state.messageId = response.responseId || `msg_${Date.now()}`;
state.model = response.modelVersion || "gemini";
state.functionIndex = 0;
results.push({
id: `chatcmpl-${state.messageId}`,
object: "chat.completion.chunk",
created: Math.floor(Date.now() / 1000),
model: state.model,
choices: [{
index: 0,
delta: { role: "assistant" },
finish_reason: null
}]
});
}
// Process parts
if (content?.parts) {
for (const part of content.parts) {
const hasThoughtSig = part.thoughtSignature || part.thought_signature;
const isThought = part.thought === true;
// Handle thought signature (thinking mode)
if (hasThoughtSig) {
const hasTextContent = part.text !== undefined && part.text !== "";
const hasFunctionCall = !!part.functionCall;
// If there's text with thoughtSignature
if (hasTextContent) {
results.push({
id: `chatcmpl-${state.messageId}`,
object: "chat.completion.chunk",
created: Math.floor(Date.now() / 1000),
model: state.model,
choices: [{
index: 0,
delta: isThought
? { reasoning_content: part.text }
: { content: part.text },
finish_reason: null
}]
});
}
// Process functionCall if exists, then skip to next part
if (hasFunctionCall) {
const fcName = part.functionCall.name;
const fcArgs = part.functionCall.args || {};
const toolCallIndex = state.functionIndex++;
const toolCall = {
id: `${fcName}-${Date.now()}-${toolCallIndex}`,
index: toolCallIndex,
type: "function",
function: {
name: fcName,
arguments: JSON.stringify(fcArgs)
}
};
state.toolCalls.set(toolCallIndex, toolCall);
results.push({
id: `chatcmpl-${state.messageId}`,
object: "chat.completion.chunk",
created: Math.floor(Date.now() / 1000),
model: state.model,
choices: [{
index: 0,
delta: { tool_calls: [toolCall] },
finish_reason: null
}]
});
}
continue;
}
// Text content (non-thinking) - skip empty text
if (part.text !== undefined && part.text !== "") {
results.push({
id: `chatcmpl-${state.messageId}`,
object: "chat.completion.chunk",
created: Math.floor(Date.now() / 1000),
model: state.model,
choices: [{
index: 0,
delta: { content: part.text },
finish_reason: null
}]
});
}
// Function call
if (part.functionCall) {
const fcName = part.functionCall.name;
const fcArgs = part.functionCall.args || {};
const toolCallIndex = state.functionIndex++;
const toolCall = {
id: `${fcName}-${Date.now()}-${toolCallIndex}`,
index: toolCallIndex,
type: "function",
function: {
name: fcName,
arguments: JSON.stringify(fcArgs)
}
};
state.toolCalls.set(toolCallIndex, toolCall);
results.push({
id: `chatcmpl-${state.messageId}`,
object: "chat.completion.chunk",
created: Math.floor(Date.now() / 1000),
model: state.model,
choices: [{
index: 0,
delta: { tool_calls: [toolCall] },
finish_reason: null
}]
});
}
// Inline data (images)
const inlineData = part.inlineData || part.inline_data;
if (inlineData?.data) {
const mimeType = inlineData.mimeType || inlineData.mime_type || "image/png";
results.push({
id: `chatcmpl-${state.messageId}`,
object: "chat.completion.chunk",
created: Math.floor(Date.now() / 1000),
model: state.model,
choices: [{
index: 0,
delta: {
images: [{
type: "image_url",
image_url: { url: `data:${mimeType};base64,${inlineData.data}` }
}]
},
finish_reason: null
}]
});
}
}
}
// Finish reason
if (candidate.finishReason) {
let finishReason = candidate.finishReason.toLowerCase();
if (finishReason === "stop" && state.toolCalls.size > 0) {
finishReason = "tool_calls";
}
results.push({
id: `chatcmpl-${state.messageId}`,
object: "chat.completion.chunk",
created: Math.floor(Date.now() / 1000),
model: state.model,
choices: [{
index: 0,
delta: {},
finish_reason: finishReason
}]
});
state.finishReason = finishReason;
}
// Usage metadata
const usage = response.usageMetadata || chunk.usageMetadata;
if (usage) {
const promptTokens = (usage.promptTokenCount || 0) + (usage.thoughtsTokenCount || 0);
state.usage = {
prompt_tokens: promptTokens,
completion_tokens: usage.candidatesTokenCount || 0,
total_tokens: usage.totalTokenCount || 0
};
if (usage.thoughtsTokenCount > 0) {
state.usage.completion_tokens_details = {
reasoning_tokens: usage.thoughtsTokenCount
};
}
}
return results.length > 0 ? results : null;
}
// ============================================
// REGISTER ALL TRANSLATORS
// ============================================
// Request: OpenAI -> Gemini variants
register(FORMATS.OPENAI, FORMATS.GEMINI, openaiToGemini, null);
register(FORMATS.OPENAI, FORMATS.GEMINI_CLI, (model, body, stream, credentials) => wrapInCloudCodeEnvelope(model, openaiToGeminiCLI(model, body, stream), credentials), null);
register(FORMATS.OPENAI, FORMATS.ANTIGRAVITY, openaiToAntigravity, null);
// Response: Gemini variants -> OpenAI (all use same handler)
register(FORMATS.GEMINI, FORMATS.OPENAI, null, geminiToOpenAIResponse);
register(FORMATS.GEMINI_CLI, FORMATS.OPENAI, null, geminiToOpenAIResponse);
register(FORMATS.ANTIGRAVITY, FORMATS.OPENAI, null, geminiToOpenAIResponse);

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/**
* Translator: OpenAI Chat Completions → OpenAI Responses API (response)
* Converts streaming chunks from Chat Completions to Responses API events
*/
import { register } from "../index.js";
import { FORMATS } from "../formats.js";
/**
* Translate OpenAI chunk to Responses API events
* @returns {Array} Array of events with { event, data } structure
*/
function translateResponse(chunk, state) {
if (!chunk) {
// Flush remaining events
return flushEvents(state);
}
if (!chunk.choices?.length) return [];
const events = [];
const nextSeq = () => ++state.seq;
const emit = (eventType, data) => {
data.sequence_number = nextSeq();
events.push({ event: eventType, data });
};
const choice = chunk.choices[0];
const idx = choice.index || 0;
const delta = choice.delta || {};
// Emit initial events
if (!state.started) {
state.started = true;
state.responseId = chunk.id ? `resp_${chunk.id}` : state.responseId;
emit("response.created", {
type: "response.created",
response: {
id: state.responseId,
object: "response",
created_at: state.created,
status: "in_progress",
background: false,
error: null,
output: []
}
});
emit("response.in_progress", {
type: "response.in_progress",
response: {
id: state.responseId,
object: "response",
created_at: state.created,
status: "in_progress"
}
});
}
// Handle reasoning_content
if (delta.reasoning_content) {
startReasoning(state, emit, idx);
emitReasoningDelta(state, emit, delta.reasoning_content);
}
// Handle text content
if (delta.content) {
let content = delta.content;
if (content.includes("<think>")) {
state.inThinking = true;
content = content.replace("<think>", "");
startReasoning(state, emit, idx);
}
if (content.includes("</think>")) {
const parts = content.split("</think>");
const thinkPart = parts[0];
const textPart = parts.slice(1).join("</think>");
if (thinkPart) emitReasoningDelta(state, emit, thinkPart);
closeReasoning(state, emit);
state.inThinking = false;
content = textPart;
}
if (state.inThinking && content) {
emitReasoningDelta(state, emit, content);
return events;
}
if (content) {
emitTextContent(state, emit, idx, content);
}
}
// Handle tool_calls
if (delta.tool_calls) {
closeMessage(state, emit, idx);
for (const tc of delta.tool_calls) {
emitToolCall(state, emit, tc);
}
}
// Handle finish_reason
if (choice.finish_reason) {
for (const i in state.msgItemAdded) closeMessage(state, emit, i);
closeReasoning(state, emit);
for (const i in state.funcCallIds) closeToolCall(state, emit, i);
sendCompleted(state, emit);
}
return events;
}
// Helper functions
function startReasoning(state, emit, idx) {
if (!state.reasoningId) {
state.reasoningId = `rs_${state.responseId}_${idx}`;
state.reasoningIndex = idx;
emit("response.output_item.added", {
type: "response.output_item.added",
output_index: idx,
item: { id: state.reasoningId, type: "reasoning", summary: [] }
});
emit("response.reasoning_summary_part.added", {
type: "response.reasoning_summary_part.added",
item_id: state.reasoningId,
output_index: idx,
summary_index: 0,
part: { type: "summary_text", text: "" }
});
state.reasoningPartAdded = true;
}
}
function emitReasoningDelta(state, emit, text) {
if (!text) return;
state.reasoningBuf += text;
emit("response.reasoning_summary_text.delta", {
type: "response.reasoning_summary_text.delta",
item_id: state.reasoningId,
output_index: state.reasoningIndex,
summary_index: 0,
delta: text
});
}
function closeReasoning(state, emit) {
if (state.reasoningId && !state.reasoningDone) {
state.reasoningDone = true;
emit("response.reasoning_summary_text.done", {
type: "response.reasoning_summary_text.done",
item_id: state.reasoningId,
output_index: state.reasoningIndex,
summary_index: 0,
text: state.reasoningBuf
});
emit("response.reasoning_summary_part.done", {
type: "response.reasoning_summary_part.done",
item_id: state.reasoningId,
output_index: state.reasoningIndex,
summary_index: 0,
part: { type: "summary_text", text: state.reasoningBuf }
});
emit("response.output_item.done", {
type: "response.output_item.done",
output_index: state.reasoningIndex,
item: {
id: state.reasoningId,
type: "reasoning",
summary: [{ type: "summary_text", text: state.reasoningBuf }]
}
});
}
}
function emitTextContent(state, emit, idx, content) {
if (!state.msgItemAdded[idx]) {
state.msgItemAdded[idx] = true;
const msgId = `msg_${state.responseId}_${idx}`;
emit("response.output_item.added", {
type: "response.output_item.added",
output_index: idx,
item: { id: msgId, type: "message", content: [], role: "assistant" }
});
}
if (!state.msgContentAdded[idx]) {
state.msgContentAdded[idx] = true;
emit("response.content_part.added", {
type: "response.content_part.added",
item_id: `msg_${state.responseId}_${idx}`,
output_index: idx,
content_index: 0,
part: { type: "output_text", annotations: [], logprobs: [], text: "" }
});
}
emit("response.output_text.delta", {
type: "response.output_text.delta",
item_id: `msg_${state.responseId}_${idx}`,
output_index: idx,
content_index: 0,
delta: content,
logprobs: []
});
if (!state.msgTextBuf[idx]) state.msgTextBuf[idx] = "";
state.msgTextBuf[idx] += content;
}
function closeMessage(state, emit, idx) {
if (state.msgItemAdded[idx] && !state.msgItemDone[idx]) {
state.msgItemDone[idx] = true;
const fullText = state.msgTextBuf[idx] || "";
const msgId = `msg_${state.responseId}_${idx}`;
emit("response.output_text.done", {
type: "response.output_text.done",
item_id: msgId,
output_index: parseInt(idx),
content_index: 0,
text: fullText,
logprobs: []
});
emit("response.content_part.done", {
type: "response.content_part.done",
item_id: msgId,
output_index: parseInt(idx),
content_index: 0,
part: { type: "output_text", annotations: [], logprobs: [], text: fullText }
});
emit("response.output_item.done", {
type: "response.output_item.done",
output_index: parseInt(idx),
item: {
id: msgId,
type: "message",
content: [{ type: "output_text", annotations: [], logprobs: [], text: fullText }],
role: "assistant"
}
});
}
}
function emitToolCall(state, emit, tc) {
const tcIdx = tc.index ?? 0;
const newCallId = tc.id;
const funcName = tc.function?.name;
if (funcName) state.funcNames[tcIdx] = funcName;
if (!state.funcCallIds[tcIdx] && newCallId) {
state.funcCallIds[tcIdx] = newCallId;
emit("response.output_item.added", {
type: "response.output_item.added",
output_index: tcIdx,
item: {
id: `fc_${newCallId}`,
type: "function_call",
arguments: "",
call_id: newCallId,
name: state.funcNames[tcIdx] || ""
}
});
}
if (!state.funcArgsBuf[tcIdx]) state.funcArgsBuf[tcIdx] = "";
if (tc.function?.arguments) {
const refCallId = state.funcCallIds[tcIdx] || newCallId;
if (refCallId) {
emit("response.function_call_arguments.delta", {
type: "response.function_call_arguments.delta",
item_id: `fc_${refCallId}`,
output_index: tcIdx,
delta: tc.function.arguments
});
}
state.funcArgsBuf[tcIdx] += tc.function.arguments;
}
}
function closeToolCall(state, emit, idx) {
const callId = state.funcCallIds[idx];
if (callId && !state.funcItemDone[idx]) {
const args = state.funcArgsBuf[idx] || "{}";
emit("response.function_call_arguments.done", {
type: "response.function_call_arguments.done",
item_id: `fc_${callId}`,
output_index: parseInt(idx),
arguments: args
});
emit("response.output_item.done", {
type: "response.output_item.done",
output_index: parseInt(idx),
item: {
id: `fc_${callId}`,
type: "function_call",
arguments: args,
call_id: callId,
name: state.funcNames[idx] || ""
}
});
state.funcItemDone[idx] = true;
state.funcArgsDone[idx] = true;
}
}
function sendCompleted(state, emit) {
if (!state.completedSent) {
state.completedSent = true;
emit("response.completed", {
type: "response.completed",
response: {
id: state.responseId,
object: "response",
created_at: state.created,
status: "completed",
background: false,
error: null
}
});
}
}
function flushEvents(state) {
if (state.completedSent) return [];
const events = [];
const nextSeq = () => ++state.seq;
const emit = (eventType, data) => {
data.sequence_number = nextSeq();
events.push({ event: eventType, data });
};
for (const i in state.msgItemAdded) closeMessage(state, emit, i);
closeReasoning(state, emit);
for (const i in state.funcCallIds) closeToolCall(state, emit, i);
sendCompleted(state, emit);
return events;
}
// Register translator
register(FORMATS.OPENAI, FORMATS.OPENAI_RESPONSES, null, translateResponse);

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// Claude helper functions for translator
import { DEFAULT_THINKING_CLAUDE_SIGNATURE } from "../../config/defaultThinkingSignature.js";
// Check if message has valid non-empty content
export function hasValidContent(msg) {
if (typeof msg.content === "string" && msg.content.trim()) return true;
if (Array.isArray(msg.content)) {
return msg.content.some(block =>
(block.type === "text" && block.text?.trim()) ||
block.type === "tool_use" ||
block.type === "tool_result"
);
}
return false;
}
// Fix tool_use/tool_result ordering for Claude API
// 1. Assistant message with tool_use: remove text AFTER tool_use (Claude doesn't allow)
// 2. Merge consecutive same-role messages
export function fixToolUseOrdering(messages) {
if (messages.length <= 1) return messages;
// Pass 1: Fix assistant messages with tool_use - remove text after tool_use
for (const msg of messages) {
if (msg.role === "assistant" && Array.isArray(msg.content)) {
const hasToolUse = msg.content.some(b => b.type === "tool_use");
if (hasToolUse) {
// Keep only: thinking blocks + tool_use blocks (remove text blocks after tool_use)
const newContent = [];
let foundToolUse = false;
for (const block of msg.content) {
if (block.type === "tool_use") {
foundToolUse = true;
newContent.push(block);
} else if (block.type === "thinking" || block.type === "redacted_thinking") {
newContent.push(block);
} else if (!foundToolUse) {
// Keep text blocks BEFORE tool_use
newContent.push(block);
}
// Skip text blocks AFTER tool_use
}
msg.content = newContent;
}
}
}
// Pass 2: Merge consecutive same-role messages
const merged = [];
for (const msg of messages) {
const last = merged[merged.length - 1];
if (last && last.role === msg.role) {
// Merge content arrays
const lastContent = Array.isArray(last.content) ? last.content : [{ type: "text", text: last.content }];
const msgContent = Array.isArray(msg.content) ? msg.content : [{ type: "text", text: msg.content }];
// Put tool_result first, then other content
const toolResults = [...lastContent.filter(b => b.type === "tool_result"), ...msgContent.filter(b => b.type === "tool_result")];
const otherContent = [...lastContent.filter(b => b.type !== "tool_result"), ...msgContent.filter(b => b.type !== "tool_result")];
last.content = [...toolResults, ...otherContent];
} else {
// Ensure content is array
const content = Array.isArray(msg.content) ? msg.content : [{ type: "text", text: msg.content }];
merged.push({ role: msg.role, content: [...content] });
}
}
return merged;
}
// Prepare request for Claude format endpoints
// - Cleanup cache_control
// - Filter empty messages
// - Add thinking block for Anthropic endpoint (provider === "claude")
// - Fix tool_use/tool_result ordering
export function prepareClaudeRequest(body, provider = null) {
// 1. System: remove all cache_control, add only to last block with ttl 1h
if (body.system && Array.isArray(body.system)) {
body.system = body.system.map((block, i) => {
const { cache_control, ...rest } = block;
if (i === body.system.length - 1) {
return { ...rest, cache_control: { type: "ephemeral", ttl: "1h" } };
}
return rest;
});
}
// 2. Messages: process in optimized passes
if (body.messages && Array.isArray(body.messages)) {
const len = body.messages.length;
let filtered = [];
// Pass 1: remove cache_control + filter empty messages
for (let i = 0; i < len; i++) {
const msg = body.messages[i];
// Remove cache_control from content blocks
if (Array.isArray(msg.content)) {
for (const block of msg.content) {
delete block.cache_control;
}
}
// Keep final assistant even if empty, otherwise check valid content
const isFinalAssistant = i === len - 1 && msg.role === "assistant";
if (isFinalAssistant || hasValidContent(msg)) {
filtered.push(msg);
}
}
// Pass 1.5: Fix tool_use/tool_result ordering
// Each tool_use must have tool_result in the NEXT message (not same message with other content)
filtered = fixToolUseOrdering(filtered);
body.messages = filtered;
// Check if thinking is enabled AND last message is from user
const lastMessage = filtered[filtered.length - 1];
const lastMessageIsUser = lastMessage?.role === "user";
const thinkingEnabled = body.thinking?.type === "enabled" && lastMessageIsUser;
// Pass 2 (reverse): add cache_control to last assistant + handle thinking for Anthropic
let lastAssistantProcessed = false;
for (let i = filtered.length - 1; i >= 0; i--) {
const msg = filtered[i];
if (msg.role === "assistant" && Array.isArray(msg.content)) {
// Add cache_control to last block of first (from end) assistant with content
if (!lastAssistantProcessed && msg.content.length > 0) {
msg.content[msg.content.length - 1].cache_control = { type: "ephemeral" };
lastAssistantProcessed = true;
}
// Handle thinking blocks for Anthropic endpoint only
if (provider === "claude") {
let hasToolUse = false;
let hasThinking = false;
// Always replace signature for all thinking blocks
for (const block of msg.content) {
if (block.type === "thinking" || block.type === "redacted_thinking") {
block.signature = DEFAULT_THINKING_CLAUDE_SIGNATURE;
hasThinking = true;
}
if (block.type === "tool_use") hasToolUse = true;
}
// Add thinking block if thinking enabled + has tool_use but no thinking
if (thinkingEnabled && !hasThinking && hasToolUse) {
msg.content.unshift({
type: "thinking",
thinking: ".",
signature: DEFAULT_THINKING_CLAUDE_SIGNATURE
});
}
}
}
}
}
// 3. Tools: remove all cache_control, add only to last tool with ttl 1h
if (body.tools && Array.isArray(body.tools)) {
body.tools = body.tools.map((tool, i) => {
const { cache_control, ...rest } = tool;
if (i === body.tools.length - 1) {
return { ...rest, cache_control: { type: "ephemeral", ttl: "1h" } };
}
return rest;
});
}
return body;
}

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// Gemini helper functions for translator
// Unsupported JSON Schema constraints that should be removed for Antigravity
export const UNSUPPORTED_SCHEMA_CONSTRAINTS = [
"minLength", "maxLength", "exclusiveMinimum", "exclusiveMaximum",
"pattern", "minItems", "maxItems", "format",
"default", "examples", "$schema", "const"
];
// Default safety settings
export const DEFAULT_SAFETY_SETTINGS = [
{ category: "HARM_CATEGORY_HATE_SPEECH", threshold: "OFF" },
{ category: "HARM_CATEGORY_DANGEROUS_CONTENT", threshold: "OFF" },
{ category: "HARM_CATEGORY_SEXUALLY_EXPLICIT", threshold: "OFF" },
{ category: "HARM_CATEGORY_HARASSMENT", threshold: "OFF" },
{ category: "HARM_CATEGORY_CIVIC_INTEGRITY", threshold: "OFF" }
];
// Convert OpenAI content to Gemini parts
export function convertOpenAIContentToParts(content) {
const parts = [];
if (typeof content === "string") {
parts.push({ text: content });
} else if (Array.isArray(content)) {
for (const item of content) {
if (item.type === "text") {
parts.push({ text: item.text });
} else if (item.type === "image_url" && item.image_url?.url?.startsWith("data:")) {
const match = item.image_url.url.match(/^data:([^;]+);base64,(.+)$/);
if (match) {
parts.push({
inlineData: { mime_type: match[1], data: match[2] }
});
}
}
}
}
return parts;
}
// Extract text content from OpenAI content
export function extractTextContent(content) {
if (typeof content === "string") return content;
if (Array.isArray(content)) {
return content.filter(c => c.type === "text").map(c => c.text).join("");
}
return "";
}
// Try parse JSON safely
export function tryParseJSON(str) {
if (typeof str !== "string") return str;
try {
return JSON.parse(str);
} catch {
return null;
}
}
// Generate request ID
export function generateRequestId() {
return `agent-${crypto.randomUUID()}`;
}
// Generate session ID
export function generateSessionId() {
return `-${Math.floor(Math.random() * 9000000000000000000)}`;
}
// Generate project ID
export function generateProjectId() {
const adjectives = ["useful", "bright", "swift", "calm", "bold"];
const nouns = ["fuze", "wave", "spark", "flow", "core"];
const adj = adjectives[Math.floor(Math.random() * adjectives.length)];
const noun = nouns[Math.floor(Math.random() * nouns.length)];
return `${adj}-${noun}-${crypto.randomUUID().slice(0, 5)}`;
}
// Clean JSON Schema for Antigravity API compatibility - removes unsupported keywords recursively
export function cleanJSONSchemaForAntigravity(schema) {
if (!schema || typeof schema !== "object") return schema;
const cleaned = Array.isArray(schema) ? [] : {};
for (const [key, value] of Object.entries(schema)) {
if (UNSUPPORTED_SCHEMA_CONSTRAINTS.includes(key)) continue;
// Handle type array like ["string", "null"] - Gemini only supports single type
if (key === "type" && Array.isArray(value)) {
const nonNullType = value.find(t => t !== "null") || "string";
cleaned[key] = nonNullType;
continue;
}
if (value && typeof value === "object") {
cleaned[key] = cleanJSONSchemaForAntigravity(value);
} else {
cleaned[key] = value;
}
}
// Cleanup required fields - only keep fields that exist in properties
if (cleaned.required && Array.isArray(cleaned.required) && cleaned.properties) {
const validRequired = cleaned.required.filter(field =>
Object.prototype.hasOwnProperty.call(cleaned.properties, field)
);
if (validRequired.length === 0) {
delete cleaned.required;
} else {
cleaned.required = validRequired;
}
}
// Add placeholder for empty object schemas (Antigravity requirement)
if (cleaned.type === "object") {
if (!cleaned.properties || Object.keys(cleaned.properties).length === 0) {
cleaned.properties = {
reason: {
type: "string",
description: "Brief explanation of why you are calling this tool"
}
};
cleaned.required = ["reason"];
}
}
return cleaned;
}

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import { DEFAULT_MAX_TOKENS, DEFAULT_MIN_TOKENS } from "../../config/constants.js";
/**
* Adjust max_tokens based on request context
* @param {object} body - Request body
* @returns {number} Adjusted max_tokens
*/
export function adjustMaxTokens(body) {
let maxTokens = body.max_tokens || DEFAULT_MAX_TOKENS;
// Auto-increase for tool calling to prevent truncated arguments
// Tool calls with large content (like writing files) need more tokens
if (body.tools && Array.isArray(body.tools) && body.tools.length > 0) {
if (maxTokens < DEFAULT_MIN_TOKENS) {
console.log(`[AUTO-ADJUST] max_tokens: ${maxTokens} → ${DEFAULT_MIN_TOKENS} (tool calling detected)`);
maxTokens = DEFAULT_MIN_TOKENS;
}
}
return maxTokens;
}

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// OpenAI helper functions for translator
// Valid OpenAI content block types
export const VALID_OPENAI_CONTENT_TYPES = ["text", "image_url", "image"];
export const VALID_OPENAI_MESSAGE_TYPES = ["text", "image_url", "image", "tool_calls", "tool_result"];
// Filter messages to OpenAI standard format
// Remove: thinking, redacted_thinking, signature, and other non-OpenAI blocks
export function filterToOpenAIFormat(body) {
if (!body.messages || !Array.isArray(body.messages)) return body;
body.messages = body.messages.map(msg => {
// Keep tool messages as-is (OpenAI format)
if (msg.role === "tool") return msg;
// Keep assistant messages with tool_calls as-is
if (msg.role === "assistant" && msg.tool_calls) return msg;
// Handle string content
if (typeof msg.content === "string") return msg;
// Handle array content
if (Array.isArray(msg.content)) {
const filteredContent = [];
for (const block of msg.content) {
// Skip thinking blocks
if (block.type === "thinking" || block.type === "redacted_thinking") continue;
// Only keep valid OpenAI content types
if (VALID_OPENAI_CONTENT_TYPES.includes(block.type)) {
// Remove signature field if exists
const { signature, cache_control, ...cleanBlock } = block;
filteredContent.push(cleanBlock);
} else if (block.type === "tool_use") {
// Convert tool_use to tool_calls format (handled separately)
continue;
} else if (block.type === "tool_result") {
// Keep tool_result but clean it
const { signature, cache_control, ...cleanBlock } = block;
filteredContent.push(cleanBlock);
}
}
// If all content was filtered, add empty text
if (filteredContent.length === 0) {
filteredContent.push({ type: "text", text: "" });
}
return { ...msg, content: filteredContent };
}
return msg;
});
// Filter out messages with only empty text (but NEVER filter tool messages)
body.messages = body.messages.filter(msg => {
// Always keep tool messages
if (msg.role === "tool") return true;
// Always keep assistant messages with tool_calls
if (msg.role === "assistant" && msg.tool_calls) return true;
if (typeof msg.content === "string") return msg.content.trim() !== "";
if (Array.isArray(msg.content)) {
return msg.content.some(b =>
(b.type === "text" && b.text?.trim()) ||
b.type !== "text"
);
}
return true;
});
// Remove empty tools array (some providers like QWEN reject it)
if (body.tools && Array.isArray(body.tools) && body.tools.length === 0) {
delete body.tools;
}
return body;
}

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/**
* Convert OpenAI Responses API format to standard chat completions format
* Responses API uses: { input: [...], instructions: "..." }
* Chat API uses: { messages: [...] }
*/
export function convertResponsesApiFormat(body) {
if (!body.input) return body;
const result = { ...body };
result.messages = [];
// Convert instructions to system message
if (body.instructions) {
result.messages.push({ role: "system", content: body.instructions });
}
// Group items by conversation turn
let currentAssistantMsg = null;
let pendingToolCalls = [];
let pendingToolResults = [];
for (const item of body.input) {
if (item.type === "message") {
// Flush any pending assistant message with tool calls
if (currentAssistantMsg) {
result.messages.push(currentAssistantMsg);
currentAssistantMsg = null;
}
// Flush pending tool results
if (pendingToolResults.length > 0) {
for (const tr of pendingToolResults) {
result.messages.push(tr);
}
pendingToolResults = [];
}
// Convert content: input_text → text, output_text → text
const content = Array.isArray(item.content)
? item.content.map(c => {
if (c.type === "input_text") return { type: "text", text: c.text };
if (c.type === "output_text") return { type: "text", text: c.text };
return c;
})
: item.content;
result.messages.push({ role: item.role, content });
}
else if (item.type === "function_call") {
// Start or append to assistant message with tool_calls
if (!currentAssistantMsg) {
currentAssistantMsg = {
role: "assistant",
content: null,
tool_calls: []
};
}
currentAssistantMsg.tool_calls.push({
id: item.call_id,
type: "function",
function: {
name: item.name,
arguments: item.arguments
}
});
}
else if (item.type === "function_call_output") {
// Flush assistant message first if exists
if (currentAssistantMsg) {
result.messages.push(currentAssistantMsg);
currentAssistantMsg = null;
}
// Add tool result
pendingToolResults.push({
role: "tool",
tool_call_id: item.call_id,
content: typeof item.output === "string" ? item.output : JSON.stringify(item.output)
});
}
else if (item.type === "reasoning") {
// Skip reasoning items - they are for display only
continue;
}
}
// Flush remaining
if (currentAssistantMsg) {
result.messages.push(currentAssistantMsg);
}
if (pendingToolResults.length > 0) {
for (const tr of pendingToolResults) {
result.messages.push(tr);
}
}
// Cleanup Responses API specific fields
delete result.input;
delete result.instructions;
delete result.include;
delete result.prompt_cache_key;
delete result.store;
delete result.reasoning;
return result;
}

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// Tool call helper functions for translator
// Generate unique tool call ID
export function generateToolCallId() {
return `call_${Date.now().toString(36)}_${Math.random().toString(36).slice(2, 9)}`;
}
// Ensure all tool_calls have id field and arguments is string (some providers require it)
export function ensureToolCallIds(body) {
if (!body.messages || !Array.isArray(body.messages)) return body;
for (const msg of body.messages) {
if (msg.role === "assistant" && msg.tool_calls && Array.isArray(msg.tool_calls)) {
for (const tc of msg.tool_calls) {
if (!tc.id) {
tc.id = generateToolCallId();
}
if (!tc.type) {
tc.type = "function";
}
// Ensure arguments is JSON string, not object
if (tc.function?.arguments && typeof tc.function.arguments !== "string") {
tc.function.arguments = JSON.stringify(tc.function.arguments);
}
}
}
}
return body;
}
// Get tool_call ids from assistant message (OpenAI format: tool_calls, Claude format: tool_use in content)
export function getToolCallIds(msg) {
if (msg.role !== "assistant") return [];
const ids = [];
// OpenAI format: tool_calls array
if (msg.tool_calls && Array.isArray(msg.tool_calls)) {
for (const tc of msg.tool_calls) {
if (tc.id) ids.push(tc.id);
}
}
// Claude format: tool_use blocks in content
if (Array.isArray(msg.content)) {
for (const block of msg.content) {
if (block.type === "tool_use" && block.id) {
ids.push(block.id);
}
}
}
return ids;
}
// Check if user message has tool_result for given ids (OpenAI format: role=tool, Claude format: tool_result in content)
export function hasToolResults(msg, toolCallIds) {
if (!msg || !toolCallIds.length) return false;
// OpenAI format: role = "tool" with tool_call_id
if (msg.role === "tool" && msg.tool_call_id) {
return toolCallIds.includes(msg.tool_call_id);
}
// Claude format: tool_result blocks in user message content
if (msg.role === "user" && Array.isArray(msg.content)) {
for (const block of msg.content) {
if (block.type === "tool_result" && toolCallIds.includes(block.tool_use_id)) {
return true;
}
}
}
return false;
}
// Fix missing tool responses - insert empty tool_result if assistant has tool_use but next message has no tool_result
export function fixMissingToolResponses(body) {
if (!body.messages || !Array.isArray(body.messages)) return body;
const newMessages = [];
for (let i = 0; i < body.messages.length; i++) {
const msg = body.messages[i];
const nextMsg = body.messages[i + 1];
newMessages.push(msg);
// Check if this is assistant with tool_calls/tool_use
const toolCallIds = getToolCallIds(msg);
if (toolCallIds.length === 0) continue;
// Check if next message has tool_result
if (nextMsg && !hasToolResults(nextMsg, toolCallIds)) {
// Insert tool responses for each tool_call
for (const id of toolCallIds) {
// OpenAI format: role = "tool"
newMessages.push({
role: "tool",
tool_call_id: id,
content: ""
});
}
}
}
body.messages = newMessages;
return body;
}

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import { FORMATS } from "./formats.js";
import { ensureToolCallIds, fixMissingToolResponses } from "./helpers/toolCallHelper.js";
import { prepareClaudeRequest } from "./helpers/claudeHelper.js";
import { filterToOpenAIFormat } from "./helpers/openaiHelper.js";
import { normalizeThinkingConfig } from "../services/provider.js";
// Registry for translators
const requestRegistry = new Map();
const responseRegistry = new Map();
// Register translator
export function register(from, to, requestFn, responseFn) {
const key = `${from}:${to}`;
if (requestFn) {
requestRegistry.set(key, requestFn);
}
if (responseFn) {
responseRegistry.set(key, responseFn);
}
}
// Translate request: source -> openai -> target
export function translateRequest(sourceFormat, targetFormat, model, body, stream = true, credentials = null, provider = null) {
let result = body;
// Normalize thinking config: remove if lastMessage is not user
normalizeThinkingConfig(result);
// Always ensure tool_calls have id (some providers require it)
ensureToolCallIds(result);
// Fix missing tool responses (insert empty tool_result if needed)
fixMissingToolResponses(result);
// If same format, skip translation steps
if (sourceFormat !== targetFormat) {
// Step 1: source -> openai (if source is not openai)
if (sourceFormat !== FORMATS.OPENAI) {
const toOpenAI = requestRegistry.get(`${sourceFormat}:${FORMATS.OPENAI}`);
if (toOpenAI) {
result = toOpenAI(model, result, stream, credentials);
}
}
// Step 1.5: Filter to clean OpenAI format (only when target is OpenAI)
if (targetFormat === FORMATS.OPENAI) {
result = filterToOpenAIFormat(result);
}
// Step 2: openai -> target (if target is not openai)
if (targetFormat !== FORMATS.OPENAI) {
const fromOpenAI = requestRegistry.get(`${FORMATS.OPENAI}:${targetFormat}`);
if (fromOpenAI) {
result = fromOpenAI(model, result, stream, credentials);
}
}
}
// Final step: prepare request for Claude format endpoints
if (targetFormat === FORMATS.CLAUDE) {
result = prepareClaudeRequest(result, provider);
}
return result;
}
// Translate response chunk: target -> openai -> source
export function translateResponse(targetFormat, sourceFormat, chunk, state) {
// If same format, return as-is
if (sourceFormat === targetFormat) {
return [chunk];
}
let results = [chunk];
// Step 1: target -> openai (if target is not openai)
if (targetFormat !== FORMATS.OPENAI) {
const toOpenAI = responseRegistry.get(`${targetFormat}:${FORMATS.OPENAI}`);
if (toOpenAI) {
results = [];
const converted = toOpenAI(chunk, state);
if (converted) {
results = Array.isArray(converted) ? converted : [converted];
}
}
}
// Step 2: openai -> source (if source is not openai)
if (sourceFormat !== FORMATS.OPENAI) {
const fromOpenAI = responseRegistry.get(`${FORMATS.OPENAI}:${sourceFormat}`);
if (fromOpenAI) {
const finalResults = [];
for (const r of results) {
const converted = fromOpenAI(r, state);
if (converted) {
finalResults.push(...(Array.isArray(converted) ? converted : [converted]));
}
}
results = finalResults;
}
}
return results;
}
// Check if translation needed
export function needsTranslation(sourceFormat, targetFormat) {
return sourceFormat !== targetFormat;
}
// Initialize state for streaming response based on format
export function initState(sourceFormat) {
// Base state for all formats
const base = {
messageId: null,
model: null,
textBlockStarted: false,
thinkingBlockStarted: false,
inThinkingBlock: false,
currentBlockIndex: null,
toolCalls: new Map(),
finishReason: null,
finishReasonSent: false,
usage: null,
contentBlockIndex: -1
};
// Add openai-responses specific fields
if (sourceFormat === FORMATS.OPENAI_RESPONSES) {
return {
...base,
seq: 0,
responseId: `resp_${Date.now()}`,
created: Math.floor(Date.now() / 1000),
started: false,
msgTextBuf: {},
msgItemAdded: {},
msgContentAdded: {},
msgItemDone: {},
reasoningId: "",
reasoningIndex: -1,
reasoningBuf: "",
reasoningPartAdded: false,
reasoningDone: false,
inThinking: false,
funcArgsBuf: {},
funcNames: {},
funcCallIds: {},
funcArgsDone: {},
funcItemDone: {},
completedSent: false
};
}
return base;
}
// Initialize all translators
export async function initTranslators() {
await import("./to-openai/claude.js");
await import("./to-openai/gemini.js");
await import("./to-openai/openai.js");
await import("./to-openai/openai-responses.js");
await import("./from-openai/claude.js");
await import("./from-openai/gemini.js");
await import("./from-openai/openai-responses.js");
}

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import { register } from "../index.js";
import { FORMATS } from "../formats.js";
import { adjustMaxTokens } from "../helpers/maxTokensHelper.js";
// Convert Claude request to OpenAI format
function claudeToOpenAI(model, body, stream) {
const result = {
model: model,
messages: [],
stream: stream
};
// Max tokens
if (body.max_tokens) {
result.max_tokens = adjustMaxTokens(body);
}
// Temperature
if (body.temperature !== undefined) {
result.temperature = body.temperature;
}
// System message
if (body.system) {
const systemContent = Array.isArray(body.system)
? body.system.map(s => s.text || "").join("\n")
: body.system;
if (systemContent) {
result.messages.push({
role: "system",
content: systemContent
});
}
}
// Convert messages
if (body.messages && Array.isArray(body.messages)) {
for (let i = 0; i < body.messages.length; i++) {
const msg = body.messages[i];
const converted = convertClaudeMessage(msg);
if (converted) {
// Handle array of messages (multiple tool results)
if (Array.isArray(converted)) {
result.messages.push(...converted);
} else {
result.messages.push(converted);
}
}
}
}
// Fix missing tool responses - OpenAI requires every tool_call to have a response
fixMissingToolResponses(result.messages);
// Tools
if (body.tools && Array.isArray(body.tools)) {
result.tools = body.tools.map(tool => ({
type: "function",
function: {
name: tool.name,
description: tool.description,
parameters: tool.input_schema || { type: "object", properties: {} }
}
}));
}
// Tool choice
if (body.tool_choice) {
result.tool_choice = convertToolChoice(body.tool_choice);
}
return result;
}
// Fix missing tool responses - add empty responses for tool_calls without responses
function fixMissingToolResponses(messages) {
for (let i = 0; i < messages.length; i++) {
const msg = messages[i];
if (msg.role === "assistant" && msg.tool_calls && msg.tool_calls.length > 0) {
const toolCallIds = msg.tool_calls.map(tc => tc.id);
// Collect all tool response IDs that IMMEDIATELY follow this assistant message
// Stop at any non-tool message (user or assistant)
const respondedIds = new Set();
let insertPosition = i + 1;
for (let j = i + 1; j < messages.length; j++) {
const nextMsg = messages[j];
if (nextMsg.role === "tool" && nextMsg.tool_call_id) {
respondedIds.add(nextMsg.tool_call_id);
insertPosition = j + 1;
} else {
// Stop at any non-tool message (user or assistant)
break;
}
}
// Find missing responses and insert them
const missingIds = toolCallIds.filter(id => !respondedIds.has(id));
if (missingIds.length > 0) {
const missingResponses = missingIds.map(id => ({
role: "tool",
tool_call_id: id,
content: "[No response received]"
}));
// Insert missing responses at the correct position
messages.splice(insertPosition, 0, ...missingResponses);
// Adjust index to skip inserted messages
i = insertPosition + missingResponses.length - 1;
}
}
}
}
// Convert single Claude message - returns single message or array of messages
function convertClaudeMessage(msg) {
const role = msg.role === "user" || msg.role === "tool" ? "user" : "assistant";
// Simple string content
if (typeof msg.content === "string") {
return { role, content: msg.content };
}
// Array content
if (Array.isArray(msg.content)) {
const parts = [];
const toolCalls = [];
const toolResults = [];
for (const block of msg.content) {
switch (block.type) {
case "text":
parts.push({ type: "text", text: block.text });
break;
case "image":
if (block.source?.type === "base64") {
parts.push({
type: "image_url",
image_url: {
url: `data:${block.source.media_type};base64,${block.source.data}`
}
});
}
break;
case "tool_use":
toolCalls.push({
id: block.id,
type: "function",
function: {
name: block.name,
arguments: JSON.stringify(block.input || {})
}
});
break;
case "tool_result":
// Extract actual content from tool_result
let resultContent = "";
if (typeof block.content === "string") {
resultContent = block.content;
} else if (Array.isArray(block.content)) {
// Claude tool_result content can be array of text blocks
resultContent = block.content
.filter(c => c.type === "text")
.map(c => c.text)
.join("\n") || JSON.stringify(block.content);
} else if (block.content) {
resultContent = JSON.stringify(block.content);
}
toolResults.push({
role: "tool",
tool_call_id: block.tool_use_id,
content: resultContent
});
break;
}
}
// If has tool results, return array of tool messages
if (toolResults.length > 0) {
// Also include text parts as user message if any
if (parts.length > 0) {
const textContent = parts.length === 1 && parts[0].type === "text"
? parts[0].text
: parts;
return [...toolResults, { role: "user", content: textContent }];
}
return toolResults;
}
// If has tool calls, return assistant message with tool_calls
if (toolCalls.length > 0) {
const result = { role: "assistant" };
if (parts.length > 0) {
result.content = parts.length === 1 && parts[0].type === "text"
? parts[0].text
: parts;
}
result.tool_calls = toolCalls;
return result;
}
// Return content
if (parts.length > 0) {
return {
role,
content: parts.length === 1 && parts[0].type === "text" ? parts[0].text : parts
};
}
// Empty content array - return empty string content to keep message in conversation
if (msg.content.length === 0) {
return { role, content: "" };
}
}
return null;
}
// Convert tool choice
function convertToolChoice(choice) {
if (!choice) return "auto";
if (typeof choice === "string") return choice;
switch (choice.type) {
case "auto": return "auto";
case "any": return "required";
case "tool": return { type: "function", function: { name: choice.name } };
default: return "auto";
}
}
// Register
register(FORMATS.CLAUDE, FORMATS.OPENAI, claudeToOpenAI, null);

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import { register } from "../index.js";
import { FORMATS } from "../formats.js";
import { adjustMaxTokens } from "../helpers/maxTokensHelper.js";
// Convert Gemini request to OpenAI format
function geminiToOpenAI(model, body, stream) {
const result = {
model: model,
messages: [],
stream: stream
};
// Generation config
if (body.generationConfig) {
const config = body.generationConfig;
if (config.maxOutputTokens) {
// Create temporary body object for adjustMaxTokens
const tempBody = { max_tokens: config.maxOutputTokens, tools: body.tools };
result.max_tokens = adjustMaxTokens(tempBody);
}
if (config.temperature !== undefined) {
result.temperature = config.temperature;
}
if (config.topP !== undefined) {
result.top_p = config.topP;
}
}
// System instruction
if (body.systemInstruction) {
const systemText = extractGeminiText(body.systemInstruction);
if (systemText) {
result.messages.push({
role: "system",
content: systemText
});
}
}
// Convert contents to messages
if (body.contents && Array.isArray(body.contents)) {
for (const content of body.contents) {
const converted = convertGeminiContent(content);
if (converted) {
result.messages.push(converted);
}
}
}
// Tools
if (body.tools && Array.isArray(body.tools)) {
result.tools = [];
for (const tool of body.tools) {
if (tool.functionDeclarations) {
for (const func of tool.functionDeclarations) {
result.tools.push({
type: "function",
function: {
name: func.name,
description: func.description || "",
parameters: func.parameters || { type: "object", properties: {} }
}
});
}
}
}
}
return result;
}
// Convert Gemini content to OpenAI message
function convertGeminiContent(content) {
const role = content.role === "user" ? "user" : "assistant";
if (!content.parts || !Array.isArray(content.parts)) {
return null;
}
const parts = [];
const toolCalls = [];
for (const part of content.parts) {
// Text
if (part.text !== undefined) {
parts.push({ type: "text", text: part.text });
}
// Image
if (part.inlineData) {
parts.push({
type: "image_url",
image_url: {
url: `data:${part.inlineData.mimeType};base64,${part.inlineData.data}`
}
});
}
// Function call
if (part.functionCall) {
toolCalls.push({
id: `call_${Date.now()}_${Math.random().toString(36).slice(2, 8)}`,
type: "function",
function: {
name: part.functionCall.name,
arguments: JSON.stringify(part.functionCall.args || {})
}
});
}
// Function response - use id if available, fallback to name
if (part.functionResponse) {
return {
role: "tool",
tool_call_id: part.functionResponse.id || part.functionResponse.name,
content: JSON.stringify(part.functionResponse.response?.result || part.functionResponse.response || {})
};
}
}
// Has tool calls
if (toolCalls.length > 0) {
const result = { role: "assistant" };
if (parts.length > 0) {
result.content = parts.length === 1 ? parts[0].text : parts;
}
result.tool_calls = toolCalls;
return result;
}
// Regular message
if (parts.length > 0) {
return {
role,
content: parts.length === 1 && parts[0].type === "text" ? parts[0].text : parts
};
}
return null;
}
// Extract text from Gemini content
function extractGeminiText(content) {
if (typeof content === "string") return content;
if (content.parts && Array.isArray(content.parts)) {
return content.parts.map(p => p.text || "").join("");
}
return "";
}
// Register
register(FORMATS.GEMINI, FORMATS.OPENAI, geminiToOpenAI, null);
register(FORMATS.GEMINI_CLI, FORMATS.OPENAI, geminiToOpenAI, null);

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/**
* Translator: OpenAI Responses API → OpenAI Chat Completions
*
* Responses API uses: { input: [...], instructions: "..." }
* Chat API uses: { messages: [...] }
*/
import { register } from "../index.js";
import { FORMATS } from "../formats.js";
/**
* Convert OpenAI Responses API request to OpenAI Chat Completions format
*/
function translateRequest(model, body, stream, credentials) {
if (!body.input) return body;
const result = { ...body };
result.messages = [];
// Convert instructions to system message
if (body.instructions) {
result.messages.push({ role: "system", content: body.instructions });
}
// Group items by conversation turn
let currentAssistantMsg = null;
let pendingToolResults = [];
for (const item of body.input) {
if (item.type === "message") {
// Flush any pending assistant message with tool calls
if (currentAssistantMsg) {
result.messages.push(currentAssistantMsg);
currentAssistantMsg = null;
}
// Flush pending tool results
if (pendingToolResults.length > 0) {
for (const tr of pendingToolResults) {
result.messages.push(tr);
}
pendingToolResults = [];
}
// Convert content: input_text → text, output_text → text
const content = Array.isArray(item.content)
? item.content.map(c => {
if (c.type === "input_text") return { type: "text", text: c.text };
if (c.type === "output_text") return { type: "text", text: c.text };
return c;
})
: item.content;
result.messages.push({ role: item.role, content });
}
else if (item.type === "function_call") {
// Start or append to assistant message with tool_calls
if (!currentAssistantMsg) {
currentAssistantMsg = {
role: "assistant",
content: null,
tool_calls: []
};
}
currentAssistantMsg.tool_calls.push({
id: item.call_id,
type: "function",
function: {
name: item.name,
arguments: item.arguments
}
});
}
else if (item.type === "function_call_output") {
// Flush assistant message first if exists
if (currentAssistantMsg) {
result.messages.push(currentAssistantMsg);
currentAssistantMsg = null;
}
// Flush any pending tool results first
if (pendingToolResults.length > 0) {
for (const tr of pendingToolResults) {
result.messages.push(tr);
}
pendingToolResults = [];
}
// Add tool result immediately (not pending)
result.messages.push({
role: "tool",
tool_call_id: item.call_id,
content: typeof item.output === "string" ? item.output : JSON.stringify(item.output)
});
}
else if (item.type === "reasoning") {
// Skip reasoning items - they are for display only
continue;
}
}
// Flush remaining
if (currentAssistantMsg) {
result.messages.push(currentAssistantMsg);
}
if (pendingToolResults.length > 0) {
for (const tr of pendingToolResults) {
result.messages.push(tr);
}
}
// Tools are already in OpenAI format, just keep them
// Responses API tools: { type: "function", name, description, parameters }
// OpenAI tools: { type: "function", function: { name, description, parameters } }
if (body.tools && Array.isArray(body.tools)) {
result.tools = body.tools.map(tool => {
// Already has function wrapper
if (tool.function) return tool;
// Responses API format: flatten to OpenAI format
return {
type: "function",
function: {
name: tool.name,
description: tool.description,
parameters: tool.parameters,
strict: tool.strict
}
};
});
}
// Cleanup Responses API specific fields
delete result.input;
delete result.instructions;
delete result.include;
delete result.prompt_cache_key;
delete result.store;
delete result.reasoning;
return result;
}
// Register translator
register(FORMATS.OPENAI_RESPONSES, FORMATS.OPENAI, translateRequest, null);

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import { register } from "../index.js";
import { FORMATS } from "../formats.js";
import { CLAUDE_SYSTEM_PROMPT } from "../../config/constants.js";
import { adjustMaxTokens } from "../helpers/maxTokensHelper.js";
// Convert OpenAI request to Claude format
function openaiToClaude(model, body, stream) {
const result = {
model: model,
max_tokens: adjustMaxTokens(body),
stream: stream
};
// Temperature
if (body.temperature !== undefined) {
result.temperature = body.temperature;
}
// Messages
result.messages = [];
const systemParts = [];
if (body.messages && Array.isArray(body.messages)) {
// Extract system messages
for (const msg of body.messages) {
if (msg.role === "system") {
systemParts.push(typeof msg.content === "string" ? msg.content : extractTextContent(msg.content));
}
}
// Filter out system messages for separate processing
const nonSystemMessages = body.messages.filter(m => m.role !== "system");
// Process messages with merging logic
// CRITICAL: tool_result must be in separate message immediately after tool_use
let currentRole = undefined;
let currentParts = [];
const flushCurrentMessage = () => {
if (currentRole && currentParts.length > 0) {
result.messages.push({ role: currentRole, content: currentParts });
currentParts = [];
}
};
for (const msg of nonSystemMessages) {
const newRole = (msg.role === "user" || msg.role === "tool") ? "user" : "assistant";
const blocks = getContentBlocksFromMessage(msg);
const hasToolUse = blocks.some(b => b.type === "tool_use");
const hasToolResult = blocks.some(b => b.type === "tool_result");
// Separate tool_result from other content
if (hasToolResult) {
const toolResultBlocks = blocks.filter(b => b.type === "tool_result");
const otherBlocks = blocks.filter(b => b.type !== "tool_result");
// Flush current message first
flushCurrentMessage();
// Add tool_result as separate user message
if (toolResultBlocks.length > 0) {
result.messages.push({ role: "user", content: toolResultBlocks });
}
// Add other blocks to current parts for next message
if (otherBlocks.length > 0) {
currentRole = newRole;
currentParts.push(...otherBlocks);
}
continue;
}
if (currentRole !== newRole) {
flushCurrentMessage();
currentRole = newRole;
}
currentParts.push(...blocks);
if (hasToolUse) {
flushCurrentMessage();
}
}
flushCurrentMessage();
// Add cache_control to last assistant message (like worker.old)
for (let i = result.messages.length - 1; i >= 0; i--) {
const message = result.messages[i];
if (message.role === "assistant" && Array.isArray(message.content) && message.content.length > 0) {
const lastBlock = message.content[message.content.length - 1];
if (lastBlock) {
lastBlock.cache_control = { type: "ephemeral" };
break;
}
}
}
}
// System with Claude Code prompt and cache_control
const claudeCodePrompt = { type: "text", text: CLAUDE_SYSTEM_PROMPT };
if (systemParts.length > 0) {
const systemText = systemParts.join("\n");
result.system = [
claudeCodePrompt,
{ type: "text", text: systemText, cache_control: { type: "ephemeral", ttl: "1h" } }
];
} else {
result.system = [claudeCodePrompt];
}
// Tools - convert from OpenAI format to Claude format
if (body.tools && Array.isArray(body.tools)) {
result.tools = body.tools.map(tool => {
// Handle both OpenAI format {type: "function", function: {...}} and direct format
const toolData = tool.type === "function" && tool.function ? tool.function : tool;
return {
name: toolData.name,
description: toolData.description || "",
input_schema: toolData.parameters || toolData.input_schema || { type: "object", properties: {}, required: [] }
};
});
// Add cache control to last tool (like worker.old)
if (result.tools.length > 0) {
result.tools[result.tools.length - 1].cache_control = { type: "ephemeral", ttl: "1h" };
}
// console.log("[CLAUDE TOOLS DEBUG] Converted tools:", result.tools.map(t => t.name));
}
// Tool choice
if (body.tool_choice) {
result.tool_choice = convertOpenAIToolChoice(body.tool_choice);
}
return result;
}
// Convert OpenAI request to Gemini format
function openaiToGemini(model, body, stream) {
const result = {
contents: [],
generationConfig: {}
};
// Generation config
if (body.max_tokens) {
result.generationConfig.maxOutputTokens = body.max_tokens;
}
if (body.temperature !== undefined) {
result.generationConfig.temperature = body.temperature;
}
if (body.top_p !== undefined) {
result.generationConfig.topP = body.top_p;
}
// Messages
if (body.messages && Array.isArray(body.messages)) {
for (const msg of body.messages) {
if (msg.role === "system") {
result.systemInstruction = {
parts: [{ text: typeof msg.content === "string" ? msg.content : extractTextContent(msg.content) }]
};
} else if (msg.role === "tool") {
result.contents.push({
role: "function",
parts: [{
functionResponse: {
name: msg.tool_call_id,
response: tryParseJSON(msg.content)
}
}]
});
} else {
const converted = convertOpenAIToGeminiContent(msg);
if (converted) {
result.contents.push(converted);
}
}
}
}
// Tools
if (body.tools && Array.isArray(body.tools)) {
const validTools = body.tools.filter(tool => tool && tool.function && tool.function.name);
if (validTools.length > 0) {
result.tools = [{
functionDeclarations: validTools.map(tool => ({
name: tool.function.name,
description: tool.function.description || "",
parameters: tool.function.parameters || { type: "object", properties: {} }
}))
}];
}
}
return result;
}
// Get content blocks from single message (like src.cc getContentBlocksFromMessage)
function getContentBlocksFromMessage(msg) {
const blocks = [];
if (msg.role === "tool") {
blocks.push({
type: "tool_result",
tool_use_id: msg.tool_call_id,
content: msg.content
});
} else if (msg.role === "user") {
if (typeof msg.content === "string") {
if (msg.content) {
blocks.push({ type: "text", text: msg.content });
}
} else if (Array.isArray(msg.content)) {
for (const part of msg.content) {
if (part.type === "text" && part.text) {
blocks.push({ type: "text", text: part.text });
} else if (part.type === "tool_result") {
blocks.push({
type: "tool_result",
tool_use_id: part.tool_use_id,
content: part.content,
...(part.is_error && { is_error: part.is_error })
});
} else if (part.type === "image_url") {
const url = part.image_url.url;
const match = url.match(/^data:([^;]+);base64,(.+)$/);
if (match) {
blocks.push({
type: "image",
source: { type: "base64", media_type: match[1], data: match[2] }
});
}
} else if (part.type === "image" && part.source) {
blocks.push({ type: "image", source: part.source });
}
}
}
} else if (msg.role === "assistant") {
// Handle Anthropic format: content is array with tool_use blocks
if (Array.isArray(msg.content)) {
for (const part of msg.content) {
if (part.type === "text" && part.text) {
blocks.push({ type: "text", text: part.text });
} else if (part.type === "tool_use") {
blocks.push({ type: "tool_use", id: part.id, name: part.name, input: part.input });
}
}
} else if (msg.content) {
const text = typeof msg.content === "string" ? msg.content : extractTextContent(msg.content);
if (text) {
blocks.push({ type: "text", text });
}
}
// Handle OpenAI format: tool_calls array
if (msg.tool_calls && Array.isArray(msg.tool_calls)) {
for (const tc of msg.tool_calls) {
if (tc.type === "function") {
blocks.push({
type: "tool_use",
id: tc.id,
name: tc.function.name,
input: tryParseJSON(tc.function.arguments)
});
}
}
}
}
return blocks;
}
// Convert single OpenAI message to Claude format (for backward compatibility)
function convertOpenAIMessage(msg) {
const role = msg.role === "assistant" ? "assistant" : "user";
const content = convertOpenAIMessageContent(msg);
if (content.length === 0) return null;
return { role, content };
}
// Convert OpenAI message to Gemini content
function convertOpenAIToGeminiContent(msg) {
const role = msg.role === "assistant" ? "model" : "user";
const parts = [];
// Text content
if (typeof msg.content === "string") {
if (msg.content) {
parts.push({ text: msg.content });
}
} else if (Array.isArray(msg.content)) {
for (const part of msg.content) {
if (part.type === "text") {
parts.push({ text: part.text });
} else if (part.type === "image_url") {
const url = part.image_url.url;
if (url.startsWith("data:")) {
const match = url.match(/^data:([^;]+);base64,(.+)$/);
if (match) {
parts.push({
inlineData: {
mimeType: match[1],
data: match[2]
}
});
}
}
}
}
}
// Tool calls
if (msg.tool_calls && Array.isArray(msg.tool_calls)) {
for (const tc of msg.tool_calls) {
parts.push({
functionCall: {
name: tc.function.name,
args: tryParseJSON(tc.function.arguments)
}
});
}
}
if (parts.length === 0) return null;
return { role, parts };
}
// Convert tool choice
function convertOpenAIToolChoice(choice) {
if (!choice) return { type: "auto" };
// Passthrough if already Claude format
if (typeof choice === "object" && choice.type) return choice;
if (choice === "auto" || choice === "none") return { type: "auto" };
if (choice === "required") return { type: "any" };
if (typeof choice === "object" && choice.function) {
return { type: "tool", name: choice.function.name };
}
return { type: "auto" };
}
// Extract text from content
function extractTextContent(content) {
if (typeof content === "string") return content;
if (Array.isArray(content)) {
return content.filter(c => c.type === "text").map(c => c.text).join("\n");
}
return "";
}
// Try parse JSON
function tryParseJSON(str) {
if (typeof str !== "string") return str;
try {
return JSON.parse(str);
} catch {
return str;
}
}
// Register
register(FORMATS.OPENAI, FORMATS.CLAUDE, openaiToClaude, null);
register(FORMATS.OPENAI, FORMATS.GEMINI, openaiToGemini, null);
register(FORMATS.OPENAI, FORMATS.GEMINI_CLI, openaiToGemini, null);