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TypeScript
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071import type { ImageMetadata } from "./image.js"
/** Display-only execution evidence, never appended to the model's tool output. */export type ToolActivity = { kind: "read" | "search" | "list" | "run"; target: string; failed?: boolean }export type FileChange = | { path: string; kind: "diff"; diff: string; added: number; removed: number } | { path: string; kind: "unavailable"; reason: string }export type ToolTrace = { activities: ToolActivity[]; changes: FileChange[]; truncated?: boolean }
export function parseToolTrace(value: unknown): ToolTrace | undefined { if (!value || typeof value !== "object") return const trace = value as ToolTrace if (!Array.isArray(trace.activities) || !Array.isArray(trace.changes) || trace.activities.length > 64 || trace.changes.length > 16) return const text = (value: unknown, limit: number): value is string => typeof value === "string" && value.length <= limit if (!trace.activities.every(item => item && ["read", "search", "list", "run"].includes(item.kind) && text(item.target, 1_000) && (item.failed === undefined || typeof item.failed === "boolean"))) return if (!trace.changes.every(item => item && text(item.path, 1_000) && (item.kind === "unavailable" ? text(item.reason, 1_000) : item.kind === "diff" && text(item.diff, 16_000) && Number.isSafeInteger(item.added) && item.added >= 0 && Number.isSafeInteger(item.removed) && item.removed >= 0))) return if (trace.truncated !== undefined && typeof trace.truncated !== "boolean") return return trace}
/** Inferred intent, not evidence of execution. Completed changes come from ToolTrace. */export type ToolIntent = { kind: "write" | "edit" | "read" | "run"; target: string }export type ToolProgress = { callId: string name: string phase: "generating" | "running" intent?: ToolIntent /** Decoded Python tail; offset is its UTF-16 position in the full code. Live only. */ code?: { offset: number; text: string }}
export type StreamEvent = | { type: "reset" } | { type: "retry" } | { type: "text"; text: string } /** A turn that failed: the runner aborted and the agent said nothing. */ | { type: "error"; text: string } | { type: "interrupted" } /** * A settled reply from the agent's own log. Live turns also arrive as `text` * chunks; replayed history has only this, because chunks are not persisted. */ | { type: "message"; role: "assistant"; text: string; timestamp?: number } | { type: "user"; text: string; source: string; triggeredAt: string; clientId?: string; timestamp?: number; image?: ImageMetadata } | { type: "thinking"; text: string } /** Something the daemon did on its own, such as releasing an idle kernel. */ | { type: "note"; text: string } /** A manual compaction finished; summary is the strategy's replacement view. */ | { type: "compacted"; evicted: number; summary: string } | { type: "tool_progress"; progress: ToolProgress | null } | { type: "tool"; name: string; args: Record<string, unknown>; result: string; trace?: ToolTrace; images?: ImageMetadata[] } | { type: "usage" model?: string /** Provider completion time in Unix epoch milliseconds, stable across replay. */ recordedAt?: number promptTokens?: number cachedPromptTokens?: number cacheWriteTokens?: number completionTokens?: number totalTokens?: number elapsedMs?: number tokensPerSecond?: number }