import type { AgentRunArgs } from './agent-runner.js';
import type { CopilotStreamEvent, TurnOutcome } from './copilot-runner-types.js';
export declare const TURN_TIMEOUT_MS: number;
/** Distinct from TURN_TIMEOUT_MS: catches a hung first-run interactive prompt
 *  fast instead of waiting out the full turn timeout. Any output at all
 *  disarms it. Copilot CLI has a DOCUMENTED bug where its directory-trust
 *  and path-access prompts can hang indefinitely in CI/headless invocations
 *  with no way to answer them — this is the primary mitigation for copilot
 *  specifically, not just a defensive backstop. */
export declare const STARTUP_GRACE_MS = 45000;
/**
 * copilot's tool-permission flags. Without `--sandbox` (or with `full`):
 * `--allow-all-tools`, or `--allow-all` (tools + every path + every URL) for
 * full access, so a headless turn never stops on an approval it cannot
 * answer. #482 (copilot 1.0.89, checked live): with no allow-all flag, a
 * call that needs approval is refused in `-p` mode; deny rules beat every
 * allow rule; without --allow-all-paths, edits stay under the cwd,
 * `--add-dir` and the temp dir (symlinks out of the cwd refused too).
 *   restricted       nothing — copilot's own approval rules, asks refused
 *   read-only        --deny-tool=write --deny-tool=shell
 *   workspace-write  --allow-tool=write --deny-tool=shell
 * With `--access full` the read-only/workspace-write turn keeps its other
 * tools (URLs, MCP) approved: `--allow-all` / `--allow-all-tools
 * --allow-all-urls` plus the same deny rules (never --allow-all-paths for
 * workspace-write).
 */
export declare function copilotPermissionArgs(args: Pick<AgentRunArgs, 'access' | 'sandbox'>): string[];
/**
 * Run one `copilot` invocation and stream its NDJSON output
 * INCREMENTALLY: each parsed line is yielded as soon as it arrives on
 * stdout (see the header's "Streaming / liveness" note for why buffering
 * until process exit was a bug, #204). End-of-turn facts (exit code,
 * stderr tail, timeout/hang flags) are written into `outcome`, which the
 * caller reads after this generator completes.
 */
export declare function streamTurn(bin: string, prompt: string, sessionId: string | undefined, args: AgentRunArgs, outcome: TurnOutcome): AsyncGenerator<CopilotStreamEvent>;
/** Build the actionable error for a failed copilot turn (hangSuspected is
 *  handled separately by the caller — it has its own, more specific message). */
export declare function turnError(outcome: TurnOutcome): Error;
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