refactored the dir structure

pkg/sidekick/types.go

@@ -0,0 +1,60 @@
+package sidekick
+
+// Role represents the role of an agent
+type Role string
+
+const (
+  RoleCoordinator Role = "COORDINATOR"
+  RoleSpecialist  Role = "SPECIALIST"
+  RoleCollector   Role = "COLLECTOR"
+)
+
+// MessageRole represents the role of a message sender
+type MessageRole string
+
+const (
+  MessageRoleSystem    MessageRole = "system"
+  MessageRoleUser      MessageRole = "user"
+  MessageRoleAssistant MessageRole = "assistant"
+  MessageRoleTool      MessageRole = "tool"
+)
+
+// Message is a chat message in the context
+type Message struct {
+  Role      MessageRole `json:"role"`
+  Content   string      `json:"content"`
+  Reasoning string      `json:"reasoning_content,omitempty"`
+  // For native tool calls from LLM
+  ToolCalls []ToolCall `json:"tool_calls,omitempty"`
+  // For tool responses
+  ToolCallID string `json:"tool_call_id,omitempty"`
+}
+
+// ToolCall represents a tool invocation from the LLM
+type ToolCall struct {
+  ID       string       `json:"id"`
+  Type     string       `json:"type"` // usually "function"
+  Function FunctionCall `json:"function"`
+}
+
+// FunctionCall contains the function name and arguments
+type FunctionCall struct {
+  Name      string `json:"name"`
+  Arguments string `json:"arguments"` // JSON string
+}
+
+// ActionType represents the type of action the agent decided to take
+type ActionType string
+
+const (
+  ActionTypeToolCall ActionType = "TOOL_CALL"
+  ActionTypeDelegate ActionType = "DELEGATE"
+  ActionTypeRespond  ActionType = "RESPOND"
+)
+
+// ActionEnvelope is the JSON format contract expected from the LLM (if not using native tool calls)
+type ActionEnvelope struct {
+  Action    ActionType             `json:"action"`
+  Params    map[string]interface{} `json:"params"`
+  Reasoning string                 `json:"reasoning,omitempty"`
+}