/**
* std/acp — Canonical Agent Client Protocol envelope types.
*
* These type aliases match the ACP `sessionUpdate` schema
* byte-for-byte, so a pipeline that declares `-> SessionUpdate` (or
* one of the concrete variants below) can be validated at the
* Harn→ACP boundary by the Harn type checker instead of relying on
* the host bridge as the only enforcement point.
*
* Import with: `import "std/acp"`. See `docs/src/mcp-and-acp.md`
* ("Typed pipeline returns") for end-to-end usage.
*/
type AgentMessageChunk = {sessionUpdate: string, content: {type: string, text: string | nil, annotations: dict | nil}}
type ToolCall = {sessionUpdate: string, toolCallId: string, title: string | nil, kind: string | nil, status: string | nil, content: list<dict> | nil, locations: list<dict> | nil, rawInput: dict | nil, rawOutput: dict | nil}
type ToolCallUpdate = {sessionUpdate: string, toolCallId: string, status: string | nil, title: string | nil, content: list<dict> | nil, locations: list<dict> | nil, rawOutput: dict | nil, executor: string | dict | nil}
type Plan = {sessionUpdate: string, entries: list<{content: string, priority: string | nil, status: string | nil}>}
type Handoff = {sessionUpdate: string, handoffId: string, artifactId: string | nil, handoff: dict}
type SessionUpdate = AgentMessageChunk | ToolCall | ToolCallUpdate | Plan | Handoff
type PipelineResult = {text: string | nil, events: list<SessionUpdate> | nil, run_record: dict | nil}
pub fn agent_message_chunk(text) {
return {sessionUpdate: "agent_message_chunk", content: {type: "text", text: text, annotations: nil}}
}
pub fn tool_call(tool_call_id, title) {
return {
sessionUpdate: "tool_call",
toolCallId: tool_call_id,
title: title,
kind: nil,
status: "pending",
content: nil,
locations: nil,
rawInput: nil,
rawOutput: nil,
}
}
pub fn tool_call_update(tool_call_id, status) {
return {
sessionUpdate: "tool_call_update",
toolCallId: tool_call_id,
status: status,
title: nil,
content: nil,
locations: nil,
rawOutput: nil,
executor: nil,
}
}
pub fn plan(entries) {
return {sessionUpdate: "plan", entries: entries}
}
pub fn handoff_update(handoff_id, artifact_id, handoff) {
return {sessionUpdate: "handoff", handoffId: handoff_id, artifactId: artifact_id, handoff: handoff}
}