Module types 

Protocol types shared between the SDK and the GitHub Copilot CLI. Protocol types shared between the SDK and the GitHub Copilot CLI.

These types map directly to the JSON-RPC request/response payloads defined by the GitHub Copilot CLI protocol. They are used for session configuration, event handling, tool invocations, and model queries.

Re-exports

pub use crate::session_fs::DirEntry;

pub use crate::session_fs::DirEntryKind;

pub use crate::session_fs::FileInfo;

pub use crate::session_fs::FsError;

pub use crate::session_fs::SessionFsConfig;

pub use crate::session_fs::SessionFsConventions;

pub use crate::session_fs::SessionFsProvider;

pub use crate::trace_context::TraceContext;

pub use crate::trace_context::TraceContextProvider;

pub use crate::generated::api_types::Model;

pub use crate::generated::api_types::ModelBilling;

pub use crate::generated::api_types::ModelCapabilities;

pub use crate::generated::api_types::ModelCapabilitiesLimits;

pub use crate::generated::api_types::ModelCapabilitiesLimitsVision;

pub use crate::generated::api_types::ModelCapabilitiesSupports;

pub use crate::generated::api_types::ModelList;

pub use crate::generated::api_types::ModelPolicy;

Structs

AttachmentLineRange

Line range for file attachments.

AttachmentSelectionPosition

Cursor position within a file selection.

AttachmentSelectionRange

Range of selected text within a file.

AzureProviderOptions

Azure-specific provider options.

CommandContext

Context passed to a CommandHandler when a registered slash command is executed by the user.

CommandDefinition

Definition of a slash command registered with the session.

CreateSessionResult

Response from session.create.

CustomAgentConfig

Configures a custom agent (sub-agent) for the session.

DefaultAgentConfig

Configures the default (built-in) agent that handles turns when no custom agent is selected.

ElicitationRequest

An incoming elicitation request from the CLI (provider side).

ElicitationResult

Result of an elicitation (interactive UI form) request.

ExitPlanModeData

Data sent by the CLI with an exitPlanMode.request RPC call.

GetAuthStatusResponse

Response from Client::get_auth_status.

GetForegroundSessionResponse

Response from session.getForeground.

GetLastSessionIdResponse

Response from session.getLastId.

GetMessagesResponse

Response from session.getMessages.

GetSessionMetadataResponse

Response from session.getMetadata.

GetStatusResponse

Response from Client::get_status.

InfiniteSessionConfig

Configures infinite sessions: persistent workspaces with automatic context-window compaction.

InputOptions

Options for the SessionUi::input convenience method.

ListSessionsResponse

Response from session.list.

LogOptions

Options for Session::log.

McpHttpServerConfig

Configuration for a remote MCP server (HTTP or SSE).

McpStdioServerConfig

Configuration for a local/stdio MCP server.

MessageOptions

Options for sending a user message to the agent.

PermissionRequestData

Data sent by the CLI for permission-related events.

PingResponse

Response from the top-level ping RPC.

ProviderConfig

Configures a custom inference provider (BYOK — Bring Your Own Key).

RequestId

Opaque request identifier for pending CLI requests (permission, user-input, etc.).

ResumeSessionConfig

Configuration for resuming an existing session via the session.resume RPC.

SectionOverride

An override operation for a single system prompt section.

SessionCapabilities

Session-level capabilities reported by the CLI after session creation.

SessionConfig

Configuration for creating a new session via the session.create RPC.

SessionEvent

A single event in a session’s timeline.

SessionEventNotification

Wrapper for session event notifications received from the CLI.

SessionId

Opaque session identifier assigned by the CLI.

SessionLifecycleEvent

A session.lifecycle notification dispatched to subscribers obtained via Client::subscribe_lifecycle.

SessionLifecycleEventMetadata

Optional metadata attached to a SessionLifecycleEvent.

SessionListFilter

Filter options for Client::list_sessions.

SessionMetadata

Metadata for a persisted session, returned by session.list.

SetModelOptions

Options for Session::set_model.

SystemMessageConfig

Controls how the system message is constructed.

Tool

A tool that the client exposes to the Copilot agent.

ToolBinaryResult

Binary content returned by a tool.

ToolInvocation

A request from the CLI to invoke a client-defined tool.

ToolResultExpanded

Expanded tool result with metadata for the LLM and session log.

ToolResultResponse

JSON-RPC response wrapper for a tool result, sent back to the CLI.

UiCapabilities

UI-specific capabilities for a session.

Enums

Attachment

An attachment included with a user message.

ConnectionState

Lifecycle state of a Client connection to the CLI.

DeliveryMode

Message delivery mode for MessageOptions::mode.

ElicitationMode

Elicitation display mode.

GitHubReferenceType

Type of GitHub reference attachment.

InputFormat

Semantic format hints for text input fields.

LogLevel

Severity level for Session::log messages.

McpServerConfig

Configuration for a single MCP server.

PermissionRequestKind

Permission categories the CLI may request approval for.

SessionLifecycleEventType

Type of SessionLifecycleEvent received via Client::subscribe_lifecycle.

ToolResult

Result of a tool invocation — either a plain text string or an expanded result.

Traits

CommandHandler

Handler invoked when a registered slash command is executed.

Functions

ensure_attachment_display_names

Normalize a list of attachments so every entry has a display_name.