Function deriveBridgeKey

src/proxy.ts:1112–1119

Derive a key for active bridge lookup (tool-call continuations). Model-specific.

(modelId: string, messages: OpenAIMessage[])

/** Derive a key for active bridge lookup (tool-call continuations). Model-specific. */
function deriveBridgeKey(modelId: string, messages: OpenAIMessage[]): string {
  const firstUserMsg = messages.find((m) => m.role === "user");
  const firstUserText = firstUserMsg ? textContent(firstUserMsg.content) : "";
  return createHash("sha256")
    .update(`bridge:${modelId}:${firstUserText.slice(0, 200)}`)
    .digest("hex")
    .slice(0, 16);
}

/** Derive a key for conversation state. Model-independent so context survives model switches. */
function deriveConversationKey(messages: OpenAIMessage[]): string {