can1357
b279db1790
- Replaced time-based sleeps and polling loops with event-driven promise resolvers and fake timers across agent and tool tests. - Migrated test suites to share in-memory auth storage and fixtures using lifecycle hooks. - Updated catalog model definitions, metadata, and configurations.
2347 lines
85 KiB
TypeScript
2347 lines
85 KiB
TypeScript
import * as crypto from "node:crypto";
|
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import * as fsSync from "node:fs";
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import * as fs from "node:fs/promises";
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import * as path from "node:path";
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import { scheduler } from "node:timers/promises";
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import { isOfficialAnthropicApiUrl } from "@oh-my-pi/pi-catalog/compat/anthropic";
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import type { Effort } from "@oh-my-pi/pi-catalog/effort";
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import { isVertexExpressOpenAIUrl, isVertexRawPredictUrl, resolveVertexEndpointHost } from "@oh-my-pi/pi-catalog/hosts";
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import {
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mapEffortToAnthropicAdaptiveEffort,
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mapEffortToGoogleThinkingLevel,
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minimumSupportedEffort,
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requireSupportedEffort,
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resolveWireModelId,
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} from "@oh-my-pi/pi-catalog/model-thinking";
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import { CATALOG_PROVIDERS, type ProviderCatalogEntry } from "@oh-my-pi/pi-catalog/provider-models";
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import { CODEX_BASE_URL } from "@oh-my-pi/pi-catalog/wire/codex";
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import { $env, $pickenv, getProviderInFlightRoot, isEnoent, logger, withExtraCaFetch } from "@oh-my-pi/pi-utils";
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import { getCustomApi } from "./api-registry";
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import { createAuthRetryKeyState, isApiKeyResolver, resolveNextAuthRetryKey } from "./auth-retry";
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import * as AIError from "./error";
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import { ProviderHttpError } from "./error";
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import { isInvalidatedOAuthTokenError } from "./error/auth-classify";
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import { isConcurrencyCapExclusion, isUsageLimitOutcome } from "./error/rate-limit";
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import type { BedrockOptions } from "./providers/amazon-bedrock";
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import type { AnthropicOptions } from "./providers/anthropic";
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import type { MessageCreateParamsStreaming } from "./providers/anthropic-wire";
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import { coworkFetch } from "./providers/cowork-fetch";
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import type { CursorOptions } from "./providers/cursor";
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import type { DevinOptions } from "./providers/devin";
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import { isGitLabDuoModel, streamGitLabDuo } from "./providers/gitlab-duo";
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import { type GitLabDuoWorkflowOptions, streamGitLabDuoWorkflow } from "./providers/gitlab-duo-workflow";
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import type { GoogleOptions } from "./providers/google";
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import { getVertexAccessToken } from "./providers/google-auth";
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import type { GoogleGeminiCliOptions } from "./providers/google-gemini-cli";
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import type { GoogleVertexOptions } from "./providers/google-vertex";
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import { isKimiModel, streamKimi } from "./providers/kimi";
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import type { OllamaChatOptions } from "./providers/ollama";
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import type { OpenAICompletionsOptions } from "./providers/openai-completions";
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import { streamPiNative } from "./providers/pi-native-client";
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// Heavy provider stream functions are imported lazily via register-builtins,
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// which wraps each provider module in a dynamic import. This keeps the
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// AWS SDK, google-auth-library, @google/genai, @bufbuild/protobuf, and
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// other provider SDKs out of the CLI startup parse graph. The
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// gitlab-duo / kimi / synthetic providers stay eager because their modules
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// export routing predicates (isGitLabDuoModel, isKimiModel, isSyntheticModel)
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// that must be callable synchronously before streaming begins, and their
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// modules are thin wrappers with no heavy SDK dependencies.
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import {
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streamAnthropic,
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streamAzureOpenAIResponses,
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streamBedrock,
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streamCursor,
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streamDevin,
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streamGoogle,
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streamGoogleGeminiCli,
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streamGoogleVertex,
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streamOllama,
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streamOpenAICodexResponses,
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streamOpenAICompletions,
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streamOpenAIResponses,
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} from "./providers/register-builtins";
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import { isSyntheticModel, streamSynthetic } from "./providers/synthetic";
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import { getProviderDefinition, PROVIDER_REGISTRY } from "./registry";
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import type {
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Api,
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AssistantMessage,
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AssistantMessageEvent,
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Context,
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FetchImpl,
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Model,
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OptionsForApi,
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ProviderSessionState,
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SimpleStreamOptions,
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StreamOptions,
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ThinkingBudgets,
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ToolChoice,
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} from "./types";
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import { resolveCacheRetention } from "./utils";
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import { AssistantMessageEventStream } from "./utils/event-stream";
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import { isFoundryEnabled } from "./utils/foundry";
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import { wrapLeakedThinkingStream } from "./utils/leaked-thinking-stream";
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import { wrapFetchForProxy } from "./utils/proxy";
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import { withRequestDebugFetch } from "./utils/request-debug";
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import { withThinkingLoopGuard } from "./utils/thinking-loop";
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function defaultFetchForModel(model: Model<Api>): FetchImpl {
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if (model.provider === "anthropic" && model.api === "anthropic-messages") return coworkFetch;
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return globalThis.fetch;
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}
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function isGoogleVertexAuthenticatedModel(model: Model<Api>): boolean {
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return (
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model.provider === "google-vertex" &&
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((model.api === "openai-completions" && isVertexExpressOpenAIUrl(model.baseUrl)) ||
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(model.api === "anthropic-messages" && isVertexRawPredictUrl(model.baseUrl)))
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);
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}
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/**
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* Whether {@link model} is an official first-party endpoint whose stream needs
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* no leaked-thinking healing — the official Anthropic API and the official
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* OpenAI / OpenAI-Codex endpoints return structured thinking blocks and never
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* leak reasoning idioms into the visible text channel.
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*
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* The gate is provider id **and** official endpoint URL: pointing
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* `provider: "anthropic"` (or `openai`) at a custom proxy via `models.yml`
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* still routes through {@link wrapLeakedThinkingStream}, since a third-party
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* gateway may well leak. URL checks are strict (exact origin / path boundary
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* or parsed hostname) — a substring match would accept lookalikes like
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* `https://api.openai.com.evil/`. Anthropic Foundry (`CLAUDE_CODE_USE_FOUNDRY`)
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* redirects an empty `baseUrl` to `FOUNDRY_BASE_URL`, so the check runs against
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* that effective endpoint — exempt only when it resolves to the official host.
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*/
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function isLeakedThinkingHealExempt(model: Model<Api>): boolean {
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switch (model.provider) {
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case "anthropic": {
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// Mirror resolveAnthropicBaseUrl's effective endpoint: Foundry redirects
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// an empty baseUrl to FOUNDRY_BASE_URL; otherwise an explicit non-official
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// model.baseUrl wins, then the ANTHROPIC_BASE_URL gateway fallback, then
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// the official default. Exempt only when the effective endpoint is official.
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if (isFoundryEnabled()) {
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const foundry = $env.FOUNDRY_BASE_URL?.trim();
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if (foundry) return isOfficialAnthropicApiUrl(foundry);
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}
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if (model.baseUrl && !isOfficialAnthropicApiUrl(model.baseUrl)) return false;
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return isOfficialAnthropicApiUrl($env.ANTHROPIC_BASE_URL?.trim() || model.baseUrl);
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}
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case "openai":
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return isOfficialOpenAIApiUrl(model.baseUrl);
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case "openai-codex":
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return isOfficialCodexApiUrl(model.baseUrl);
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default:
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return false;
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}
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}
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/** Strict official-OpenAI endpoint check; missing baseUrl defaults to `api.openai.com`. */
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function isOfficialOpenAIApiUrl(baseUrl: string | undefined): boolean {
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if (!baseUrl) return true;
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try {
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return new URL(baseUrl).hostname === "api.openai.com";
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} catch {
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return false;
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}
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}
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/** Strict official-Codex endpoint check; exact origin or a path boundary after {@link CODEX_BASE_URL}. */
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export function isOfficialCodexApiUrl(baseUrl: string | undefined): boolean {
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if (!baseUrl) return true;
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const lower = baseUrl.toLowerCase().replace(/\/+$/, "");
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return lower === CODEX_BASE_URL || lower.startsWith(`${CODEX_BASE_URL}/`);
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}
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/**
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* Apply live leaked-thinking healing unless {@link model} is an official
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* first-party endpoint ({@link isLeakedThinkingHealExempt}), which emits
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* structured thinking and needs no healing.
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*/
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function healLeakedThinking(model: Model<Api>, inner: AssistantMessageEventStream): AssistantMessageEventStream {
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return isLeakedThinkingHealExempt(model) ? inner : wrapLeakedThinkingStream(inner);
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}
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type ProviderInFlightLease = {
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path: string;
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stopHeartbeat: () => Promise<void>;
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};
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type ProviderInFlightLeaseInfo = {
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pid: number;
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timestamp: number;
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token: string;
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};
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type ProviderInFlightStaleLock = { token: string } | { mtimeMs: number };
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type ProviderInFlightLockIdentity = { dev: number; ino: number; birthtimeMs: number };
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const PROVIDER_INFLIGHT_LOCK_STALE_MS = 10_000;
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const PROVIDER_INFLIGHT_LEASE_STALE_MS = 30_000;
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const PROVIDER_INFLIGHT_HEARTBEAT_MS = 5_000;
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const PROVIDER_INFLIGHT_SIGNAL_FALLBACK_MS = 250;
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const PROVIDER_INFLIGHT_HEARTBEAT_FLUSH_TIMEOUT_MS = 1_000;
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const PROVIDER_INFLIGHT_RELEASE_TIMEOUT_MS = 5_000;
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let configuredProviderMaxInFlightRequests: Record<string, number> = {};
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let providerInFlightRootOverride: string | undefined;
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let providerInFlightHeartbeatMsOverride: number | undefined;
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let providerInFlightHeartbeatFlushTimeoutMsOverride: number | undefined;
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let providerInFlightHeartbeatWriterOverride:
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| ((writeProviderInFlightInfo: () => Promise<void>) => Promise<void>)
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| undefined;
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let providerInFlightLeaseRemoverOverride: ((leasePath: string) => Promise<void>) | undefined;
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let providerInFlightWaitObserverOverride: ((provider: string) => void) | undefined;
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export function configureProviderMaxInFlightRequests(limits: Record<string, number> | undefined): void {
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configuredProviderMaxInFlightRequests = limits ?? {};
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}
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function resolveProviderInFlightLimit(
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provider: string,
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options?: Pick<StreamOptions, "maxInFlightRequests">,
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): number | undefined {
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const limits = options?.maxInFlightRequests ?? configuredProviderMaxInFlightRequests;
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const value = limits[provider];
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if (typeof value !== "number" || !Number.isFinite(value) || value <= 0) return undefined;
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return Math.max(1, Math.floor(value));
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}
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function providerInFlightRoot(): string {
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if (providerInFlightRootOverride) return providerInFlightRootOverride;
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return getProviderInFlightRoot();
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}
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function providerInFlightSegment(provider: string): string {
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return crypto.createHash("sha256").update(provider).digest("base64url");
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}
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function providerInFlightDir(provider: string): string {
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return path.join(providerInFlightRoot(), providerInFlightSegment(provider));
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}
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function providerInFlightSignalPath(provider: string): string {
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return path.join(providerInFlightDir(provider), ".wakeup");
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}
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function providerInFlightLockDir(provider: string): string {
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return `${providerInFlightDir(provider)}.lock`;
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}
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|
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// `process.kill(pid, 0)` may throw for permission/sandbox reasons even when a
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// process exists. Treat non-ESRCH failures as alive; timestamp expiry still
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// reaps leases whose heartbeat stopped.
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function isProcessAlive(pid: number): boolean {
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try {
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process.kill(pid, 0);
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return true;
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} catch (error) {
|
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return (error as NodeJS.ErrnoException).code !== "ESRCH";
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}
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}
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async function readProviderInFlightInfo(infoPath: string): Promise<ProviderInFlightLeaseInfo | null> {
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try {
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const content = await fs.readFile(infoPath, "utf-8");
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const parsed = JSON.parse(content) as Partial<ProviderInFlightLeaseInfo>;
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if (typeof parsed.pid !== "number" || typeof parsed.timestamp !== "number" || typeof parsed.token !== "string") {
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return null;
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}
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return { pid: parsed.pid, timestamp: parsed.timestamp, token: parsed.token };
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} catch {
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return null;
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}
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}
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|
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async function writeProviderInFlightInfo(dir: string, token: string): Promise<void> {
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const info: ProviderInFlightLeaseInfo = { pid: process.pid, timestamp: Date.now(), token };
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const infoPath = path.join(dir, "info.json");
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const tempPath = path.join(dir, `.info-${process.pid}-${crypto.randomUUID()}.tmp`);
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try {
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|
// Unlike Bun.write, fs.writeFile does not recreate a lease directory that
|
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// was removed while a timed-out heartbeat was still pending.
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|
await fs.writeFile(tempPath, JSON.stringify(info), "utf8");
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|
await fs.rename(tempPath, infoPath);
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|
} catch (error) {
|
|
await fs.rm(tempPath, { force: true }).catch(() => {});
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|
throw error;
|
|
}
|
|
}
|
|
|
|
async function isProviderInFlightDirStale(dir: string, staleMs: number): Promise<boolean> {
|
|
const info = await readProviderInFlightInfo(path.join(dir, "info.json"));
|
|
if (info) {
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|
if (!isProcessAlive(info.pid)) return true;
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return Date.now() - info.timestamp > staleMs;
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|
}
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|
|
try {
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const stat = await fs.stat(path.join(dir, "info.json"));
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return Date.now() - stat.mtimeMs > staleMs;
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|
} catch (error) {
|
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if (!isEnoent(error)) throw error;
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|
}
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|
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try {
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const stat = await fs.stat(dir);
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return Date.now() - stat.mtimeMs > staleMs;
|
|
} catch (error) {
|
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if (isEnoent(error)) return false;
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|
throw error;
|
|
}
|
|
}
|
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|
|
async function readProviderInFlightStaleLock(lockDir: string): Promise<ProviderInFlightStaleLock | null> {
|
|
const infoPath = path.join(lockDir, "info.json");
|
|
const info = await readProviderInFlightInfo(infoPath);
|
|
if (info) return isProcessAlive(info.pid) ? null : { token: info.token };
|
|
|
|
try {
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const stat = await fs.stat(lockDir);
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|
return Date.now() - stat.mtimeMs > PROVIDER_INFLIGHT_LOCK_STALE_MS ? { mtimeMs: stat.mtimeMs } : null;
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|
} catch (error) {
|
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if (isEnoent(error)) return null;
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throw error;
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}
|
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}
|
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|
|
async function readProviderInFlightLockIdentity(lockDir: string): Promise<ProviderInFlightLockIdentity> {
|
|
const stat = await fs.stat(lockDir);
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|
return { dev: stat.dev, ino: stat.ino, birthtimeMs: stat.birthtimeMs };
|
|
}
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|
|
function isSameProviderInFlightLock(
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|
current: ProviderInFlightLockIdentity,
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|
expected: ProviderInFlightLockIdentity,
|
|
): boolean {
|
|
if (current.dev !== expected.dev) return false;
|
|
if (current.ino !== 0 || expected.ino !== 0) return current.ino === expected.ino;
|
|
return current.birthtimeMs === expected.birthtimeMs;
|
|
}
|
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|
|
async function releaseProviderInFlightStaleLock(lockDir: string, stale: ProviderInFlightStaleLock): Promise<void> {
|
|
if ("token" in stale) {
|
|
await releaseProviderInFlightLock(lockDir, stale.token);
|
|
return;
|
|
}
|
|
|
|
const infoPath = path.join(lockDir, "info.json");
|
|
if (await readProviderInFlightInfo(infoPath)) return;
|
|
try {
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|
const stat = await fs.stat(lockDir);
|
|
if (stat.mtimeMs !== stale.mtimeMs || Date.now() - stat.mtimeMs <= PROVIDER_INFLIGHT_LOCK_STALE_MS) return;
|
|
await fs.rm(lockDir, { recursive: true, force: true });
|
|
} catch {}
|
|
}
|
|
|
|
// Best-effort token-checked release. A token mismatch means another process has
|
|
// already replaced the lock, so the fresh lock must be left intact.
|
|
async function releaseProviderInFlightLock(lockDir: string, token: string): Promise<void> {
|
|
try {
|
|
const info = await readProviderInFlightInfo(path.join(lockDir, "info.json"));
|
|
if (!info || info.token !== token) return;
|
|
await fs.rm(lockDir, { recursive: true, force: true });
|
|
} catch {}
|
|
}
|
|
|
|
async function releaseProviderInFlightLockDirIfSame(
|
|
lockDir: string,
|
|
identity: ProviderInFlightLockIdentity,
|
|
): Promise<void> {
|
|
try {
|
|
if (await readProviderInFlightInfo(path.join(lockDir, "info.json"))) return;
|
|
const current = await readProviderInFlightLockIdentity(lockDir);
|
|
if (!isSameProviderInFlightLock(current, identity)) return;
|
|
await fs.rm(lockDir, { recursive: true, force: true });
|
|
} catch {}
|
|
}
|
|
|
|
async function acquireProviderInFlightLock(provider: string, signal?: AbortSignal): Promise<() => Promise<void>> {
|
|
const lockDir = providerInFlightLockDir(provider);
|
|
await fs.mkdir(path.dirname(lockDir), { recursive: true });
|
|
|
|
while (true) {
|
|
if (signal?.aborted) throw signal.reason ?? new AIError.AbortError("Provider request aborted before dispatch");
|
|
try {
|
|
await fs.mkdir(lockDir);
|
|
const lockIdentity = await readProviderInFlightLockIdentity(lockDir);
|
|
const token = crypto.randomUUID();
|
|
try {
|
|
await writeProviderInFlightInfo(lockDir, token);
|
|
} catch (error) {
|
|
await releaseProviderInFlightLockDirIfSame(lockDir, lockIdentity);
|
|
throw error;
|
|
}
|
|
return async () => {
|
|
await releaseProviderInFlightLock(lockDir, token);
|
|
};
|
|
} catch (error) {
|
|
if ((error as NodeJS.ErrnoException).code !== "EEXIST") throw error;
|
|
}
|
|
|
|
const staleLock = await readProviderInFlightStaleLock(lockDir);
|
|
if (staleLock) {
|
|
await releaseProviderInFlightStaleLock(lockDir, staleLock);
|
|
await signalProviderInFlightWaiters(provider);
|
|
continue;
|
|
}
|
|
|
|
await waitForProviderInFlightSignal(provider, signal);
|
|
}
|
|
}
|
|
|
|
async function cleanupProviderInFlightLeases(providerDir: string): Promise<number> {
|
|
let active = 0;
|
|
let entries: string[];
|
|
try {
|
|
entries = await fs.readdir(providerDir);
|
|
} catch (error) {
|
|
if (isEnoent(error)) return 0;
|
|
throw error;
|
|
}
|
|
|
|
for (const entry of entries) {
|
|
const leaseDir = path.join(providerDir, entry);
|
|
let isDirectory = false;
|
|
try {
|
|
isDirectory = (await fs.stat(leaseDir)).isDirectory();
|
|
} catch (error) {
|
|
if (isEnoent(error)) continue;
|
|
throw error;
|
|
}
|
|
if (!isDirectory) continue;
|
|
if (await isProviderInFlightDirStale(leaseDir, PROVIDER_INFLIGHT_LEASE_STALE_MS)) {
|
|
await fs.rm(leaseDir, { recursive: true, force: true });
|
|
continue;
|
|
}
|
|
active++;
|
|
}
|
|
return active;
|
|
}
|
|
|
|
async function tryAcquireProviderInFlightLease(
|
|
provider: string,
|
|
limit: number,
|
|
signal?: AbortSignal,
|
|
): Promise<ProviderInFlightLease | null> {
|
|
const releaseLock = await acquireProviderInFlightLock(provider, signal);
|
|
try {
|
|
const dir = providerInFlightDir(provider);
|
|
await fs.mkdir(dir, { recursive: true });
|
|
const active = await cleanupProviderInFlightLeases(dir);
|
|
if (active >= limit) return null;
|
|
|
|
const leaseDir = path.join(dir, `${process.pid}-${Date.now()}-${crypto.randomUUID()}`);
|
|
const token = crypto.randomUUID();
|
|
try {
|
|
await fs.mkdir(leaseDir);
|
|
await writeProviderInFlightInfo(leaseDir, token);
|
|
} catch (error) {
|
|
await removeProviderInFlightLeaseDir(leaseDir).catch(() => {});
|
|
throw error;
|
|
}
|
|
let heartbeatActive = true;
|
|
let heartbeatFlush = Promise.resolve();
|
|
const touchHeartbeat = () => {
|
|
if (!heartbeatActive) return;
|
|
heartbeatFlush = heartbeatFlush
|
|
.then(async () => {
|
|
if (!heartbeatActive) return;
|
|
const write = () => {
|
|
if (!heartbeatActive) return Promise.resolve();
|
|
return writeProviderInFlightInfo(leaseDir, token);
|
|
};
|
|
if (providerInFlightHeartbeatWriterOverride) {
|
|
await providerInFlightHeartbeatWriterOverride(write);
|
|
} else {
|
|
await write();
|
|
}
|
|
})
|
|
.catch(() => {});
|
|
};
|
|
const heartbeat = setInterval(
|
|
touchHeartbeat,
|
|
providerInFlightHeartbeatMsOverride ?? PROVIDER_INFLIGHT_HEARTBEAT_MS,
|
|
);
|
|
heartbeat.unref?.();
|
|
return {
|
|
path: leaseDir,
|
|
stopHeartbeat: () => {
|
|
heartbeatActive = false;
|
|
clearInterval(heartbeat);
|
|
return heartbeatFlush;
|
|
},
|
|
};
|
|
} finally {
|
|
await releaseLock();
|
|
}
|
|
}
|
|
|
|
async function signalProviderInFlightWaitersInDir(dir: string): Promise<void> {
|
|
try {
|
|
await fs.mkdir(dir, { recursive: true });
|
|
await Bun.write(path.join(dir, ".wakeup"), String(Date.now()));
|
|
} catch {}
|
|
}
|
|
|
|
async function signalProviderInFlightWaiters(provider: string): Promise<void> {
|
|
await signalProviderInFlightWaitersInDir(providerInFlightDir(provider));
|
|
}
|
|
|
|
function waitForProviderInFlightSignal(provider: string, signal?: AbortSignal): Promise<void> {
|
|
if (signal?.aborted)
|
|
return Promise.reject(signal.reason ?? new AIError.AbortError("Provider request aborted before dispatch"));
|
|
const signalPath = providerInFlightSignalPath(provider);
|
|
providerInFlightWaitObserverOverride?.(provider);
|
|
const waitStarted = Date.now();
|
|
const { promise, resolve, reject } = Promise.withResolvers<void>();
|
|
let settled = false;
|
|
let watcher: fsSync.FSWatcher | undefined;
|
|
const timer = setTimeout(() => finish(resolve), PROVIDER_INFLIGHT_SIGNAL_FALLBACK_MS);
|
|
const finish = (settle: () => void) => {
|
|
if (settled) return;
|
|
settled = true;
|
|
clearTimeout(timer);
|
|
watcher?.close();
|
|
signal?.removeEventListener("abort", onAbort);
|
|
settle();
|
|
};
|
|
const onAbort = () => {
|
|
finish(() => reject(signal?.reason ?? new AIError.AbortError("Provider request aborted before dispatch")));
|
|
};
|
|
signal?.addEventListener("abort", onAbort, { once: true });
|
|
try {
|
|
watcher = fsSync.watch(providerInFlightDir(provider), (_event, filename) => {
|
|
if (filename === ".wakeup" || filename === null) {
|
|
finish(resolve);
|
|
}
|
|
});
|
|
void fs.stat(signalPath).then(
|
|
stat => {
|
|
if (stat.mtimeMs >= waitStarted) finish(resolve);
|
|
},
|
|
error => {
|
|
if (!isEnoent(error)) finish(resolve);
|
|
},
|
|
);
|
|
} catch {
|
|
// Filesystem notifications are best-effort across platforms; the fallback
|
|
// timer keeps stale-lock/lease cleanup progressing if an event is dropped.
|
|
}
|
|
return promise;
|
|
}
|
|
|
|
async function removeProviderInFlightLeaseDir(leasePath: string): Promise<void> {
|
|
for (let attempt = 0; attempt < 3; attempt++) {
|
|
try {
|
|
await fs.rm(leasePath, { recursive: true, force: true });
|
|
return;
|
|
} catch (error) {
|
|
if (isEnoent(error)) return;
|
|
const code = (error as NodeJS.ErrnoException).code;
|
|
if (attempt < 2 && (code === "EBUSY" || code === "ENOTEMPTY" || code === "EPERM")) {
|
|
await Bun.sleep(25);
|
|
continue;
|
|
}
|
|
throw error;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Signal into the lease's OWN provider directory (derived from `lease.path`)
|
|
// rather than recomputing it from the current root. A release that lands after
|
|
// the in-flight root has been repointed (only the test seam does that) must not
|
|
// write `.wakeup` into an unrelated provider directory.
|
|
async function releaseProviderInFlightLease(lease: ProviderInFlightLease): Promise<void> {
|
|
const heartbeatFlush = lease.stopHeartbeat();
|
|
const flushTimeout = Promise.withResolvers<"timeout">();
|
|
const flushTimer = setTimeout(
|
|
() => flushTimeout.resolve("timeout"),
|
|
providerInFlightHeartbeatFlushTimeoutMsOverride ?? PROVIDER_INFLIGHT_HEARTBEAT_FLUSH_TIMEOUT_MS,
|
|
);
|
|
flushTimer.unref?.();
|
|
try {
|
|
const outcome = await Promise.race([heartbeatFlush.then(() => "flushed" as const), flushTimeout.promise]);
|
|
if (outcome === "timeout") {
|
|
logger.warn("Provider in-flight heartbeat flush timed out; forcing lease cleanup", { path: lease.path });
|
|
}
|
|
} finally {
|
|
clearTimeout(flushTimer);
|
|
}
|
|
|
|
const releaseTimeout = Promise.withResolvers<never>();
|
|
const releaseTimer = setTimeout(
|
|
() => releaseTimeout.reject(new Error("Provider in-flight lease cleanup timed out")),
|
|
PROVIDER_INFLIGHT_RELEASE_TIMEOUT_MS,
|
|
);
|
|
releaseTimer.unref?.();
|
|
try {
|
|
const removeLease = providerInFlightLeaseRemoverOverride ?? removeProviderInFlightLeaseDir;
|
|
await Promise.race([removeLease(lease.path), releaseTimeout.promise]);
|
|
} finally {
|
|
clearTimeout(releaseTimer);
|
|
}
|
|
// Wake-up is an optimization: waiters also poll every 250 ms. Do not let a
|
|
// notification-file stall keep a completed provider request open.
|
|
void signalProviderInFlightWaitersInDir(path.dirname(lease.path));
|
|
}
|
|
|
|
async function acquireProviderInFlightSlot(
|
|
provider: string,
|
|
limit: number | undefined,
|
|
signal?: AbortSignal,
|
|
): Promise<() => Promise<void>> {
|
|
if (limit === undefined) return async () => {};
|
|
let loggedWait = false;
|
|
while (true) {
|
|
if (signal?.aborted) throw signal.reason ?? new AIError.AbortError("Provider request aborted before dispatch");
|
|
const lease = await tryAcquireProviderInFlightLease(provider, limit, signal);
|
|
if (lease) return () => releaseProviderInFlightLease(lease);
|
|
if (!loggedWait) {
|
|
loggedWait = true;
|
|
logger.debug("Provider in-flight limit blocked request", { provider, limit });
|
|
}
|
|
await waitForProviderInFlightSignal(provider, signal);
|
|
}
|
|
}
|
|
|
|
export const __providerInFlightForTesting = {
|
|
setRoot(root: string | undefined): void {
|
|
providerInFlightRootOverride = root;
|
|
},
|
|
setHeartbeatTimings(timings: { heartbeatMs?: number; heartbeatFlushTimeoutMs?: number } | undefined): void {
|
|
providerInFlightHeartbeatMsOverride = timings?.heartbeatMs;
|
|
providerInFlightHeartbeatFlushTimeoutMsOverride = timings?.heartbeatFlushTimeoutMs;
|
|
},
|
|
setHeartbeatWriter(writer: ((writeProviderInFlightInfo: () => Promise<void>) => Promise<void>) | undefined): void {
|
|
providerInFlightHeartbeatWriterOverride = writer;
|
|
},
|
|
setLeaseRemover(remover: ((leasePath: string) => Promise<void>) | undefined): void {
|
|
providerInFlightLeaseRemoverOverride = remover;
|
|
},
|
|
setWaitObserver(observer: ((provider: string) => void) | undefined): void {
|
|
providerInFlightWaitObserverOverride = observer;
|
|
},
|
|
providerDir(provider: string): string {
|
|
return providerInFlightDir(provider);
|
|
},
|
|
lockDir(provider: string): string {
|
|
return providerInFlightLockDir(provider);
|
|
},
|
|
async captureStaleLockRelease(provider: string): Promise<(() => Promise<void>) | null> {
|
|
const lockDir = providerInFlightLockDir(provider);
|
|
const stale = await readProviderInFlightStaleLock(lockDir);
|
|
if (!stale) return null;
|
|
return () => releaseProviderInFlightStaleLock(lockDir, stale);
|
|
},
|
|
async captureLockDirRelease(provider: string): Promise<(() => Promise<void>) | null> {
|
|
const lockDir = providerInFlightLockDir(provider);
|
|
try {
|
|
const identity = await readProviderInFlightLockIdentity(lockDir);
|
|
return () => releaseProviderInFlightLockDirIfSame(lockDir, identity);
|
|
} catch {
|
|
return null;
|
|
}
|
|
},
|
|
};
|
|
|
|
function withProviderInFlightLimit<TOptions extends Pick<StreamOptions, "signal" | "maxInFlightRequests">>(
|
|
model: Model<Api>,
|
|
options: TOptions | undefined,
|
|
dispatch: () => AssistantMessageEventStream,
|
|
): AssistantMessageEventStream {
|
|
// Leaked-thinking healing folds in here — the one shared provider-dispatch
|
|
// chokepoint — so the loop guard (which wraps this) sees healed events and all
|
|
// provider exits are covered by one wrap. Official first-party providers are
|
|
// exempt (see `healLeakedThinking`); healing is otherwise idempotent.
|
|
const limit = resolveProviderInFlightLimit(model.provider, options);
|
|
if (limit === undefined) return healLeakedThinking(model, dispatch());
|
|
|
|
const outer = new AssistantMessageEventStream();
|
|
void (async () => {
|
|
let release: (() => Promise<void>) | undefined;
|
|
let releasePromise: Promise<void> | undefined;
|
|
const releaseOnce = () => {
|
|
if (!release) return Promise.resolve();
|
|
releasePromise ??= release();
|
|
return releasePromise;
|
|
};
|
|
const releaseBestEffort = async () => {
|
|
try {
|
|
await releaseOnce();
|
|
} catch (releaseError) {
|
|
// The lease has stopped heartbeating and stale cleanup will reap it
|
|
// within PROVIDER_INFLIGHT_LEASE_STALE_MS. Until then, its slot may
|
|
// remain unavailable and waiters rely on the fallback poll.
|
|
// Never replace a completed response or the provider's original error
|
|
// with a coordination-directory cleanup failure.
|
|
logger.warn("Provider in-flight permit release failed", {
|
|
provider: model.provider,
|
|
error: String(releaseError),
|
|
});
|
|
}
|
|
};
|
|
try {
|
|
const startedWaitingAt = Date.now();
|
|
release = await acquireProviderInFlightSlot(model.provider, limit, options?.signal);
|
|
if (Date.now() - startedWaitingAt >= PROVIDER_INFLIGHT_SIGNAL_FALLBACK_MS) {
|
|
logger.debug("Provider in-flight limit wait completed", { provider: model.provider, limit });
|
|
}
|
|
if (options?.signal?.aborted) {
|
|
throw options.signal.reason ?? new AIError.AbortError("Provider request aborted before dispatch");
|
|
}
|
|
const inner = healLeakedThinking(model, dispatch());
|
|
let terminalEvent: AssistantMessageEvent | undefined;
|
|
for await (const event of inner) {
|
|
if (event.type === "done" || event.type === "error") {
|
|
terminalEvent = event;
|
|
break;
|
|
}
|
|
outer.push(event);
|
|
if (outer.done) {
|
|
await releaseBestEffort();
|
|
return;
|
|
}
|
|
}
|
|
const result = await inner.result();
|
|
// Releasing the permit is part of request completion. Publishing the
|
|
// result first lets an immediate follow-up turn contend with its own
|
|
// still-live lease, which is particularly costly on Windows.
|
|
await releaseBestEffort();
|
|
if (!outer.done) {
|
|
if (terminalEvent) outer.push(terminalEvent);
|
|
else outer.end(result);
|
|
}
|
|
} catch (error) {
|
|
await releaseBestEffort();
|
|
if (!outer.done) outer.fail(error);
|
|
}
|
|
})();
|
|
return outer;
|
|
}
|
|
|
|
function createVertexAuthenticatedFetch(options: StreamOptions | undefined): FetchImpl {
|
|
const baseFetch = options?.fetch ?? fetch;
|
|
const vertexFetch = async (input: string | URL | Request, init?: RequestInit): Promise<Response> => {
|
|
const token = await getVertexAccessToken({ signal: options?.signal, fetch: baseFetch });
|
|
const headers = new Headers(init?.headers);
|
|
headers.set("Authorization", `Bearer ${token}`);
|
|
const rewritten = resolveVertexRequest(input);
|
|
const url = rewritten instanceof Request ? rewritten.url : rewritten.toString();
|
|
if (isVertexRawPredictUrl(url)) {
|
|
const bodyText = await readVertexRequestBody(rewritten, init);
|
|
const transformed = transformVertexAnthropicBody(bodyText);
|
|
return baseFetch(url, {
|
|
...init,
|
|
method: init?.method ?? (rewritten instanceof Request ? rewritten.method : "POST"),
|
|
headers,
|
|
body: transformed,
|
|
});
|
|
}
|
|
return baseFetch(rewritten, { ...init, headers });
|
|
};
|
|
return Object.assign(vertexFetch, baseFetch.preconnect ? { preconnect: baseFetch.preconnect } : {});
|
|
}
|
|
|
|
async function readVertexRequestBody(input: string | URL | Request, init: RequestInit | undefined): Promise<string> {
|
|
if (input instanceof Request) return input.clone().text();
|
|
const body = init?.body;
|
|
if (typeof body === "string") return body;
|
|
if (body instanceof Uint8Array) return new TextDecoder().decode(body);
|
|
if (body instanceof ArrayBuffer) return new TextDecoder().decode(body);
|
|
return "";
|
|
}
|
|
|
|
// Vertex Claude rejects the standard Anthropic body shape: the `model` field
|
|
// is encoded in the URL path and `anthropic_version: "vertex-2023-10-16"` is
|
|
// required in the JSON body instead of the `anthropic-version` HTTP header.
|
|
function transformVertexAnthropicBody(bodyText: string): string {
|
|
if (!bodyText) return bodyText;
|
|
try {
|
|
const payload = JSON.parse(bodyText) as Record<string, unknown>;
|
|
delete payload.model;
|
|
payload.anthropic_version = "vertex-2023-10-16";
|
|
return JSON.stringify(payload);
|
|
} catch {
|
|
return bodyText;
|
|
}
|
|
}
|
|
|
|
function resolveVertexRequest(input: string | URL | Request): string | URL | Request {
|
|
const project = $env.GOOGLE_CLOUD_PROJECT || $env.GCP_PROJECT || $env.GCLOUD_PROJECT;
|
|
const location = $env.GOOGLE_VERTEX_LOCATION || $env.GOOGLE_CLOUD_LOCATION || $env.VERTEX_LOCATION;
|
|
if (!project || !location) return input;
|
|
|
|
const rewriteUrl = (url: string): string => {
|
|
const hasPlaceholder =
|
|
url.includes("{project}") ||
|
|
url.includes("{location}") ||
|
|
url.includes("%7Bproject%7D") ||
|
|
url.includes("%7Blocation%7D");
|
|
const host = resolveVertexEndpointHost(location);
|
|
const rewritten = hasPlaceholder
|
|
? url
|
|
.replace("https://{location}-aiplatform.googleapis.com", `https://${host}`)
|
|
.replace("https://%7Blocation%7D-aiplatform.googleapis.com", `https://${host}`)
|
|
.replaceAll("{project}", encodeURIComponent(project))
|
|
.replaceAll("%7Bproject%7D", encodeURIComponent(project))
|
|
.replaceAll("{location}", encodeURIComponent(location))
|
|
.replaceAll("%7Blocation%7D", encodeURIComponent(location))
|
|
: url;
|
|
return rewritten.replace(":streamRawPredict/v1/messages", ":streamRawPredict");
|
|
};
|
|
|
|
if (input instanceof Request) {
|
|
const rewrittenUrl = rewriteUrl(input.url);
|
|
return rewrittenUrl === input.url ? input : new Request(rewrittenUrl, input);
|
|
}
|
|
if (input instanceof URL) {
|
|
const rewrittenUrl = rewriteUrl(input.toString());
|
|
return rewrittenUrl === input.toString() ? input : new URL(rewrittenUrl);
|
|
}
|
|
return rewriteUrl(input);
|
|
}
|
|
|
|
type KeyResolver = string | (() => string | undefined);
|
|
|
|
const LEGACY_ENV_KEYS: Record<string, KeyResolver> = {
|
|
// Non-provider / search-tool keys and API-name keys not modeled as registry provider defs.
|
|
"azure-openai-responses": "AZURE_OPENAI_API_KEY",
|
|
jina: "JINA_API_KEY",
|
|
brave: "BRAVE_API_KEY",
|
|
tinyfish: "TINYFISH_API_KEY",
|
|
firecrawl: "FIRECRAWL_API_KEY",
|
|
};
|
|
|
|
/**
|
|
* Env fallbacks derived from the catalog table — the single source for plain
|
|
* provider env-var names. Registry defs override with computed resolvers
|
|
* (Foundry/ADC/Bedrock probes); legacy non-provider keys merge last.
|
|
*/
|
|
const CATALOG_ENTRY_ENV_KEYS = (CATALOG_PROVIDERS as readonly ProviderCatalogEntry[]).flatMap(provider => {
|
|
const envVars = provider.envVars;
|
|
if (!envVars || envVars.length === 0) return [];
|
|
const resolver: KeyResolver = envVars.length === 1 ? envVars[0] : () => $pickenv(...envVars);
|
|
return [[provider.id, resolver] as [string, KeyResolver]];
|
|
});
|
|
|
|
const serviceProviderMap: Record<string, KeyResolver> = {
|
|
...Object.fromEntries(CATALOG_ENTRY_ENV_KEYS),
|
|
...Object.fromEntries(
|
|
PROVIDER_REGISTRY.flatMap(provider =>
|
|
provider.envKeys != null ? [[provider.id, provider.envKeys] as [string, KeyResolver]] : [],
|
|
),
|
|
),
|
|
...LEGACY_ENV_KEYS,
|
|
};
|
|
|
|
/**
|
|
* Get API key for provider from known environment variables, e.g. OPENAI_API_KEY.
|
|
*
|
|
* Will not return API keys for providers that require OAuth tokens.
|
|
* Checks Bun.env, then cwd/.env, then ~/.env.
|
|
*/
|
|
export function getEnvApiKey(provider: string): string | undefined {
|
|
const resolver = serviceProviderMap[provider];
|
|
if (typeof resolver === "string") {
|
|
return $env[resolver];
|
|
}
|
|
return resolver?.();
|
|
}
|
|
|
|
/**
|
|
* Name of the environment variable that backs `getEnvApiKey` for a provider,
|
|
* when that provider maps to a single named variable (e.g. `github-copilot` →
|
|
* `COPILOT_GITHUB_TOKEN`). Returns undefined for providers whose env fallback
|
|
* is computed (multi-var pickers, Vertex ADC / Bedrock probes, …) since no
|
|
* single variable name describes the source.
|
|
*/
|
|
export function getEnvApiKeyName(provider: string): string | undefined {
|
|
const resolver = serviceProviderMap[provider];
|
|
return typeof resolver === "string" ? resolver : undefined;
|
|
}
|
|
|
|
/**
|
|
* Enumerate every provider that has an env-var fallback for `getEnvApiKey`.
|
|
* Used by `omp auth-broker migrate --include-env` to discover env-sourced keys
|
|
* that should be uploaded to the broker.
|
|
*/
|
|
export function listProvidersWithEnvKey(): string[] {
|
|
return Object.keys(serviceProviderMap);
|
|
}
|
|
|
|
export function stream<TApi extends Api>(
|
|
model: Model<TApi>,
|
|
context: Context,
|
|
options?: OptionsForApi<TApi>,
|
|
): AssistantMessageEventStream {
|
|
return withThinkingLoopGuard(model, options, opts =>
|
|
withProviderInFlightLimit(model, opts, () => streamDispatch(model, context, opts)),
|
|
);
|
|
}
|
|
|
|
function streamDispatch<TApi extends Api>(
|
|
model: Model<TApi>,
|
|
context: Context,
|
|
options?: OptionsForApi<TApi>,
|
|
): AssistantMessageEventStream {
|
|
const inputOptions = (options || {}) as StreamOptions;
|
|
const baseOptions = { ...inputOptions, fetch: inputOptions.fetch ?? defaultFetchForModel(model) };
|
|
const debugOptions = withExtraCaFetch(withRequestDebugFetch(baseOptions));
|
|
const requestOptions = {
|
|
...debugOptions,
|
|
fetch: wrapFetchForProxy(debugOptions.fetch, model.provider),
|
|
} as OptionsForApi<TApi>;
|
|
assertExplicitOpenAIResponsesPromptCacheSupport(model, requestOptions);
|
|
|
|
// Check custom API registry first (extension-provided APIs like "vertex-claude-api")
|
|
const customApiProvider = getCustomApi(model.api);
|
|
if (customApiProvider) {
|
|
return customApiProvider.stream(model, context, requestOptions as StreamOptions);
|
|
}
|
|
|
|
if (isGitLabDuoModel(model)) {
|
|
const apiKey = requestOptions.apiKey || getEnvApiKey(model.provider);
|
|
if (!apiKey) {
|
|
throw new AIError.MissingApiKeyError(model.provider);
|
|
}
|
|
return streamGitLabDuo(model, context, {
|
|
...(requestOptions as SimpleStreamOptions),
|
|
apiKey,
|
|
});
|
|
}
|
|
|
|
if (model.api === "gitlab-duo-agent") {
|
|
const apiKey = (requestOptions as StreamOptions | undefined)?.apiKey || getEnvApiKey(model.provider);
|
|
if (!apiKey) {
|
|
throw new AIError.MissingApiKeyError(model.provider);
|
|
}
|
|
return streamGitLabDuoWorkflow(model as Model<"gitlab-duo-agent">, context, {
|
|
...(requestOptions as StreamOptions | undefined),
|
|
apiKey,
|
|
} as GitLabDuoWorkflowOptions);
|
|
}
|
|
|
|
// Vertex AI and Bedrock Converse authenticate outside the generic API-key path.
|
|
if (model.api === "google-vertex") {
|
|
return streamGoogleVertex(model as Model<"google-vertex">, context, requestOptions as GoogleVertexOptions);
|
|
}
|
|
if (model.api === "bedrock-converse-stream") {
|
|
return streamBedrock(model as Model<"bedrock-converse-stream">, context, requestOptions as BedrockOptions);
|
|
}
|
|
|
|
const prepareRequest = getProviderDefinition(model.provider)?.prepareRequest;
|
|
const prepared = prepareRequest?.(model as Model<Api>, requestOptions as StreamOptions);
|
|
const providerModel = prepared?.model ?? (model as Model<Api>);
|
|
const preparedOptions = prepared?.options ?? (requestOptions as StreamOptions);
|
|
const apiKey = preparedOptions.apiKey || getEnvApiKey(providerModel.provider);
|
|
if (!apiKey) {
|
|
throw new AIError.MissingApiKeyError(providerModel.provider);
|
|
}
|
|
const providerOptions = isGoogleVertexAuthenticatedModel(providerModel)
|
|
? {
|
|
...preparedOptions,
|
|
apiKey: "vertex-adc",
|
|
fetch: createVertexAuthenticatedFetch(preparedOptions),
|
|
}
|
|
: { ...preparedOptions, apiKey };
|
|
|
|
const api: Api = providerModel.api;
|
|
switch (api) {
|
|
case "anthropic-messages": {
|
|
const anthropicOptions = providerOptions as AnthropicOptions;
|
|
return streamAnthropic(providerModel as Model<"anthropic-messages">, context, {
|
|
...anthropicOptions,
|
|
isOAuth: anthropicOptions.isOAuth ?? providerModel.isOAuth,
|
|
});
|
|
}
|
|
|
|
case "openrouter": {
|
|
const useResponses = $env.PI_OPENROUTER_RESPONSES !== "0";
|
|
if (useResponses) {
|
|
return streamOpenAIResponses(
|
|
providerModel as Model<"openai-responses">,
|
|
context,
|
|
providerOptions as OptionsForApi<"openai-responses">,
|
|
);
|
|
}
|
|
return streamOpenAICompletions(
|
|
providerModel as Model<"openai-completions">,
|
|
context,
|
|
providerOptions as OptionsForApi<"openai-completions">,
|
|
);
|
|
}
|
|
|
|
case "openai-completions":
|
|
return streamOpenAICompletions(
|
|
providerModel as Model<"openai-completions">,
|
|
context,
|
|
providerOptions as OptionsForApi<"openai-completions">,
|
|
);
|
|
|
|
case "openai-responses":
|
|
return streamOpenAIResponses(
|
|
providerModel as Model<"openai-responses">,
|
|
context,
|
|
providerOptions as OptionsForApi<"openai-responses">,
|
|
);
|
|
|
|
case "azure-openai-responses":
|
|
return streamAzureOpenAIResponses(
|
|
providerModel as Model<"azure-openai-responses">,
|
|
context,
|
|
providerOptions as OptionsForApi<"azure-openai-responses">,
|
|
);
|
|
|
|
case "openai-codex-responses":
|
|
return streamOpenAICodexResponses(
|
|
providerModel as Model<"openai-codex-responses">,
|
|
context,
|
|
providerOptions as OptionsForApi<"openai-codex-responses">,
|
|
);
|
|
|
|
case "google-generative-ai":
|
|
return streamGoogle(providerModel as Model<"google-generative-ai">, context, providerOptions);
|
|
|
|
case "google-gemini-cli":
|
|
return streamGoogleGeminiCli(
|
|
providerModel as Model<"google-gemini-cli">,
|
|
context,
|
|
providerOptions as GoogleGeminiCliOptions,
|
|
);
|
|
|
|
case "ollama-chat":
|
|
return streamOllama(providerModel as Model<"ollama-chat">, context, providerOptions as OllamaChatOptions);
|
|
|
|
case "cursor-agent":
|
|
return streamCursor(providerModel as Model<"cursor-agent">, context, providerOptions as CursorOptions);
|
|
|
|
case "devin-agent":
|
|
return streamDevin(providerModel as Model<"devin-agent">, context, providerOptions as DevinOptions);
|
|
|
|
default:
|
|
throw new AIError.ConfigurationError(`Unhandled API: ${api}`);
|
|
}
|
|
}
|
|
|
|
/** Thinking-loop re-samples spent before {@link resolveWithThinkingLoopCook} cooks. */
|
|
const THINKING_LOOP_MAX_ABORTS = 3;
|
|
const THINKING_LOOP_RETRY_BASE_DELAY_MS = 500;
|
|
const THINKING_LOOP_RETRY_MAX_DELAY_MS = 8_000;
|
|
|
|
/**
|
|
* Resolve a completion, re-sampling a thinking-loop stall up to
|
|
* {@link THINKING_LOOP_MAX_ABORTS} times before letting it cook. The loop guard
|
|
* raises an empty `stopReason: "error"` stall on each guarded attempt; this
|
|
* result-path consumer re-dispatches a fresh request per stall and, once the abort
|
|
* budget is spent, runs one final pass with the guard disabled so a stubborn loop
|
|
* returns the model's raw output instead of a fatal stall. Non-stall results —
|
|
* including genuine errors — return immediately; a caller abort during backoff
|
|
* propagates so cancellation surfaces as an abort, never a stale stall result.
|
|
*/
|
|
async function resolveWithThinkingLoopCook(
|
|
signal: AbortSignal | undefined,
|
|
dispatch: () => AssistantMessageEventStream,
|
|
cook: () => AssistantMessageEventStream,
|
|
): Promise<AssistantMessage> {
|
|
let message = await dispatch().result();
|
|
let thinkingLoopRetry = AIError.is(message.errorId, AIError.Flag.ThinkingLoop);
|
|
for (let attempt = 0; thinkingLoopRetry && attempt < THINKING_LOOP_MAX_ABORTS - 1; attempt += 1) {
|
|
// A caller abort surfaces as a thrown abort (never the stall, which would
|
|
// misclassify as a 502): throwIfAborted before backoff, and scheduler.wait
|
|
// rejects if the abort lands mid-delay.
|
|
signal?.throwIfAborted();
|
|
const delay = Math.min(THINKING_LOOP_RETRY_BASE_DELAY_MS * 2 ** attempt, THINKING_LOOP_RETRY_MAX_DELAY_MS);
|
|
await scheduler.wait(delay, { signal });
|
|
message = await dispatch().result();
|
|
thinkingLoopRetry =
|
|
message.stopReason === "error" &&
|
|
message.content.length === 0 &&
|
|
AIError.is(message.errorId, AIError.Flag.ThinkingLoop);
|
|
}
|
|
if (!thinkingLoopRetry) return message;
|
|
signal?.throwIfAborted();
|
|
// Abort budget spent and still looping: let it cook with the guard disabled.
|
|
return cook().result();
|
|
}
|
|
|
|
export async function complete<TApi extends Api>(
|
|
model: Model<TApi>,
|
|
context: Context,
|
|
options?: OptionsForApi<TApi>,
|
|
): Promise<AssistantMessage> {
|
|
return resolveWithThinkingLoopCook(
|
|
options?.signal,
|
|
() => stream(model, context, options),
|
|
() => stream(model, context, { ...options, loopGuard: { ...options?.loopGuard, enabled: false } }),
|
|
);
|
|
}
|
|
|
|
type AuthRetryFailure = {
|
|
error: unknown;
|
|
bufferedEvents: AssistantMessageEvent[];
|
|
terminalEvent?: Extract<AssistantMessageEvent, { type: "error" }>;
|
|
};
|
|
|
|
function extractStatusFromAssistantError(message: AssistantMessage): number | undefined {
|
|
if (message.errorStatus !== undefined) return message.errorStatus;
|
|
if (!message.errorMessage) return undefined;
|
|
return AIError.status({ message: message.errorMessage });
|
|
}
|
|
|
|
function isRetryableUpstreamError(error: unknown, status: number | undefined, message: string | undefined): boolean {
|
|
// 401 means the credential is bad; 403 is its valid-token twin (access
|
|
// denied by plan, model policy, or org restriction — a sibling account may
|
|
// not share it). Explicit account-scoped policy errors such as Codex
|
|
// `cyber_policy` are likewise rotatable: another account may carry the
|
|
// required approval. Usage-limit phrasing (Codex's
|
|
// "You have hit your ChatGPT usage limit", Anthropic's "usage_limit_reached",
|
|
// Google's "resource_exhausted", OpenAI's "insufficient_quota") and 429s
|
|
// without transient rate-limit wording mean this account is parked but a
|
|
// sibling credential can usually pick the request up. Both are rotatable
|
|
// via `onAuthError` — the auth-gateway maps hard auth failures to
|
|
// `invalidateCredentialMatching` and temporary account constraints to a
|
|
// credential block. Transient 429s ("Too many requests", per-minute caps)
|
|
// classify as RATE_LIMIT_EXCEEDED in `parseRateLimitReason` and stay in the
|
|
// provider's own backoff layer instead of burning siblings.
|
|
if (AIError.isAccountPolicyError(error)) return true;
|
|
if (AIError.isUsageLimit(error)) return true;
|
|
if (isInvalidatedOAuthTokenError(error)) return true;
|
|
if (status === 401 || (status === 403 && !isConcurrencyCapExclusion(status, message))) return true;
|
|
return isUsageLimitOutcome(status, message);
|
|
}
|
|
|
|
function createAssistantAuthError(message: AssistantMessage): Error {
|
|
const text = message.errorMessage ?? "Provider authentication failed";
|
|
const status = extractStatusFromAssistantError(message);
|
|
const error =
|
|
status === undefined
|
|
? new AIError.ProviderResponseError(text, { kind: "runtime" })
|
|
: new ProviderHttpError(text, status);
|
|
return typeof message.errorId === "number" ? AIError.attach(error, message.errorId) : error;
|
|
}
|
|
|
|
function emitBufferedEvents(stream: AssistantMessageEventStream, events: AssistantMessageEvent[]): void {
|
|
for (const event of events) {
|
|
stream.push(event);
|
|
}
|
|
}
|
|
|
|
const ANTHROPIC_CACHE_TTL_MS = 5 * 60_000;
|
|
const ANTHROPIC_CACHE_REFRESH_LEAD_MS = 15_000;
|
|
const ANTHROPIC_CACHE_REFRESH_LIMIT = 3;
|
|
const ANTHROPIC_CACHE_REFRESH_STATE_KEY = "anthropic-cache-refresh";
|
|
|
|
interface AnthropicCacheRefreshPlan {
|
|
refresh(controller: AbortController): Promise<number | undefined>;
|
|
}
|
|
|
|
class AnthropicCacheRefreshState implements ProviderSessionState {
|
|
#controller: AbortController | undefined;
|
|
#generation = 0;
|
|
#plan: AnthropicCacheRefreshPlan | undefined;
|
|
#refreshesRemaining = 0;
|
|
#timer: NodeJS.Timeout | undefined;
|
|
|
|
cancel(): void {
|
|
this.#generation++;
|
|
if (this.#timer !== undefined) {
|
|
clearTimeout(this.#timer);
|
|
this.#timer = undefined;
|
|
}
|
|
this.#controller?.abort();
|
|
this.#controller = undefined;
|
|
this.#plan = undefined;
|
|
this.#refreshesRemaining = 0;
|
|
}
|
|
|
|
arm(plan: AnthropicCacheRefreshPlan, cacheTouchedAtMs: number): void {
|
|
this.cancel();
|
|
this.#plan = plan;
|
|
this.#refreshesRemaining = ANTHROPIC_CACHE_REFRESH_LIMIT;
|
|
this.#schedule(cacheTouchedAtMs, this.#generation);
|
|
}
|
|
|
|
close(): void {
|
|
this.cancel();
|
|
}
|
|
|
|
#schedule(cacheTouchedAtMs: number, generation: number): void {
|
|
const refreshAtMs = cacheTouchedAtMs + ANTHROPIC_CACHE_TTL_MS - ANTHROPIC_CACHE_REFRESH_LEAD_MS;
|
|
this.#timer = setTimeout(
|
|
() => {
|
|
this.#timer = undefined;
|
|
void this.#refresh(generation);
|
|
},
|
|
Math.max(0, refreshAtMs - Date.now()),
|
|
);
|
|
this.#timer.unref?.();
|
|
}
|
|
|
|
async #refresh(generation: number): Promise<void> {
|
|
const plan = this.#plan;
|
|
if (generation !== this.#generation || !plan || this.#refreshesRemaining <= 0) return;
|
|
|
|
const controller = new AbortController();
|
|
this.#controller = controller;
|
|
let cacheTouchedAtMs: number | undefined;
|
|
try {
|
|
cacheTouchedAtMs = await plan.refresh(controller);
|
|
} catch (error) {
|
|
if (generation === this.#generation && !controller.signal.aborted) {
|
|
logger.debug("Anthropic prompt-cache refresh failed", { error: String(error) });
|
|
}
|
|
}
|
|
if (generation !== this.#generation) return;
|
|
|
|
this.#controller = undefined;
|
|
if (cacheTouchedAtMs === undefined) {
|
|
this.#plan = undefined;
|
|
this.#refreshesRemaining = 0;
|
|
return;
|
|
}
|
|
|
|
this.#refreshesRemaining--;
|
|
if (this.#refreshesRemaining <= 0) {
|
|
this.#plan = undefined;
|
|
return;
|
|
}
|
|
this.#schedule(cacheTouchedAtMs, generation);
|
|
}
|
|
}
|
|
|
|
function supportsAnthropicCacheRefresh<TApi extends Api>(model: Model<TApi>): boolean {
|
|
return (
|
|
model.api === "anthropic-messages" &&
|
|
model.provider === "anthropic" &&
|
|
model.transport !== "pi-native" &&
|
|
isLeakedThinkingHealExempt(model)
|
|
);
|
|
}
|
|
|
|
function isAnthropicRefreshPayload(payload: unknown): payload is MessageCreateParamsStreaming {
|
|
return (
|
|
typeof payload === "object" &&
|
|
payload !== null &&
|
|
"messages" in payload &&
|
|
Array.isArray(payload.messages) &&
|
|
"max_tokens" in payload &&
|
|
typeof payload.max_tokens === "number"
|
|
);
|
|
}
|
|
|
|
function isShortAnthropicCacheControl(cacheControl: unknown): boolean {
|
|
return (
|
|
typeof cacheControl === "object" &&
|
|
cacheControl !== null &&
|
|
"type" in cacheControl &&
|
|
cacheControl.type === "ephemeral" &&
|
|
(!("ttl" in cacheControl) || cacheControl.ttl !== "1h")
|
|
);
|
|
}
|
|
|
|
function hasShortAnthropicMessageBreakpoint(payload: MessageCreateParamsStreaming): boolean {
|
|
for (const message of payload.messages) {
|
|
if (!Array.isArray(message.content)) continue;
|
|
for (const block of message.content) {
|
|
if ("cache_control" in block && isShortAnthropicCacheControl(block.cache_control)) return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
function isAnthropicGenerationEvent(event: AssistantMessageEvent): boolean {
|
|
switch (event.type) {
|
|
case "text_start":
|
|
case "thinking_start":
|
|
case "toolcall_start":
|
|
case "image_end":
|
|
return true;
|
|
case "text_delta":
|
|
case "thinking_delta":
|
|
case "toolcall_delta":
|
|
return event.delta.length > 0;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
function isAnthropicThinkingActive(model: Model<Api>, payload: MessageCreateParamsStreaming): boolean {
|
|
if (payload.thinking) return payload.thinking.type !== "disabled";
|
|
return model.thinking?.mode === "anthropic-adaptive" && payload.output_config?.effort != null;
|
|
}
|
|
|
|
function createAnthropicCacheRefreshPlan<TApi extends Api>(
|
|
model: Model<TApi>,
|
|
context: Context,
|
|
options: SimpleStreamOptions | undefined,
|
|
payload: MessageCreateParamsStreaming,
|
|
): AnthropicCacheRefreshPlan {
|
|
const thinkingEnabled = isAnthropicThinkingActive(model, payload);
|
|
return {
|
|
async refresh(controller) {
|
|
let cacheRead = 0;
|
|
let cacheWrite = 0;
|
|
let cacheTouchedAtMs: number | undefined;
|
|
let canceledAfterGenerationStarted = false;
|
|
const response = streamSimpleRequest(model, context, {
|
|
...options,
|
|
acceptEmptyResponse: true,
|
|
anthropicCacheRefreshRequest: !thinkingEnabled,
|
|
cacheRetention: "short",
|
|
maxTokens: thinkingEnabled ? options?.maxTokens : 0,
|
|
onPayload: () => ({
|
|
...payload,
|
|
max_tokens: thinkingEnabled ? payload.max_tokens : 0,
|
|
}),
|
|
onResponse: () => {
|
|
cacheTouchedAtMs = Date.now();
|
|
},
|
|
onSseEvent: undefined,
|
|
signal: controller.signal,
|
|
});
|
|
|
|
for await (const event of response) {
|
|
if ("partial" in event) {
|
|
cacheRead = event.partial.usage.cacheRead;
|
|
cacheWrite = event.partial.usage.cacheWrite;
|
|
}
|
|
if (event.type === "error") return undefined;
|
|
if (event.type === "done") {
|
|
cacheRead = event.message.usage.cacheRead;
|
|
cacheWrite = event.message.usage.cacheWrite;
|
|
return cacheTouchedAtMs !== undefined && cacheRead > 0 && cacheWrite === 0
|
|
? cacheTouchedAtMs
|
|
: undefined;
|
|
}
|
|
if (thinkingEnabled && isAnthropicGenerationEvent(event)) {
|
|
canceledAfterGenerationStarted = true;
|
|
controller.abort();
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (canceledAfterGenerationStarted) {
|
|
try {
|
|
await response.result();
|
|
} catch (error) {
|
|
if (!controller.signal.aborted) throw error;
|
|
}
|
|
}
|
|
return cacheTouchedAtMs !== undefined && cacheRead > 0 && cacheWrite === 0 ? cacheTouchedAtMs : undefined;
|
|
},
|
|
};
|
|
}
|
|
|
|
function streamSimpleWithAnthropicCacheRefresh<TApi extends Api>(
|
|
model: Model<TApi>,
|
|
context: Context,
|
|
options: SimpleStreamOptions | undefined,
|
|
): AssistantMessageEventStream {
|
|
const providerSessionState = options?.providerSessionState;
|
|
if (!options?.anthropicCacheRefresh || !providerSessionState) {
|
|
return streamSimpleRequest(model, context, options);
|
|
}
|
|
|
|
const existingState = providerSessionState.get(ANTHROPIC_CACHE_REFRESH_STATE_KEY);
|
|
if (existingState instanceof AnthropicCacheRefreshState) {
|
|
existingState.cancel();
|
|
} else if (existingState) {
|
|
return streamSimpleRequest(model, context, options);
|
|
}
|
|
if (!supportsAnthropicCacheRefresh(model) || resolveCacheRetention(options.cacheRetention) !== "short") {
|
|
return streamSimpleRequest(model, context, options);
|
|
}
|
|
|
|
const refreshState = existingState ?? new AnthropicCacheRefreshState();
|
|
if (!existingState) providerSessionState.set(ANTHROPIC_CACHE_REFRESH_STATE_KEY, refreshState);
|
|
|
|
let cacheTouchedAtMs: number | undefined;
|
|
let capturedPayload: MessageCreateParamsStreaming | undefined;
|
|
const inner = streamSimpleRequest(model, context, {
|
|
...options,
|
|
onPayload: async (payload, payloadModel) => {
|
|
const replacement = await options?.onPayload?.(payload, payloadModel);
|
|
const finalPayload = replacement ?? payload;
|
|
if (isAnthropicRefreshPayload(finalPayload)) capturedPayload = finalPayload;
|
|
return replacement;
|
|
},
|
|
onResponse: async (response, responseModel) => {
|
|
cacheTouchedAtMs = Date.now();
|
|
await options?.onResponse?.(response, responseModel);
|
|
},
|
|
});
|
|
const outer = new AssistantMessageEventStream();
|
|
const armRefresh = (message: AssistantMessage): void => {
|
|
if (
|
|
message.stopReason === "error" ||
|
|
message.stopReason === "aborted" ||
|
|
message.usage.cacheRead + message.usage.cacheWrite <= 0 ||
|
|
cacheTouchedAtMs === undefined ||
|
|
capturedPayload === undefined ||
|
|
!hasShortAnthropicMessageBreakpoint(capturedPayload)
|
|
) {
|
|
return;
|
|
}
|
|
refreshState.arm(createAnthropicCacheRefreshPlan(model, context, options, capturedPayload), cacheTouchedAtMs);
|
|
};
|
|
|
|
void (async () => {
|
|
try {
|
|
for await (const event of inner) {
|
|
if (event.type === "done") armRefresh(event.message);
|
|
outer.push(event);
|
|
if (outer.done) return;
|
|
}
|
|
if (!outer.done) {
|
|
const result = await inner.result();
|
|
armRefresh(result);
|
|
outer.end(result);
|
|
}
|
|
} catch (error) {
|
|
outer.fail(error);
|
|
}
|
|
})();
|
|
return outer;
|
|
}
|
|
|
|
export function streamSimple<TApi extends Api>(
|
|
model: Model<TApi>,
|
|
context: Context,
|
|
options?: SimpleStreamOptions,
|
|
): AssistantMessageEventStream {
|
|
return streamSimpleWithAnthropicCacheRefresh(model, context, options);
|
|
}
|
|
|
|
function streamSimpleRequest<TApi extends Api>(
|
|
model: Model<TApi>,
|
|
context: Context,
|
|
options?: SimpleStreamOptions,
|
|
): AssistantMessageEventStream {
|
|
const inputOptions = (options || {}) as SimpleStreamOptions;
|
|
const baseOptions = { ...inputOptions, fetch: inputOptions.fetch ?? defaultFetchForModel(model) };
|
|
const debugOptions = withExtraCaFetch(withRequestDebugFetch(baseOptions));
|
|
const requestOptions = {
|
|
...debugOptions,
|
|
fetch: wrapFetchForProxy(debugOptions.fetch, model.provider),
|
|
} as SimpleStreamOptions;
|
|
|
|
const apiKeyResolver = isApiKeyResolver(requestOptions?.apiKey) ? requestOptions.apiKey : undefined;
|
|
if (apiKeyResolver) {
|
|
const outer = new AssistantMessageEventStream();
|
|
const signal = requestOptions?.signal;
|
|
// One inner attempt against a resolved key, or against the Bedrock AWS
|
|
// credential chain when its optional resolver has no stored bearer key.
|
|
// Retryable auth failures are buffered until replay is safe.
|
|
const runAttempt = async (apiKey?: string): Promise<AuthRetryFailure | undefined> => {
|
|
const bufferedEvents: AssistantMessageEvent[] = [];
|
|
let emittedReplayUnsafeEvent = false;
|
|
const flushBuffered = (): void => {
|
|
emitBufferedEvents(outer, bufferedEvents);
|
|
bufferedEvents.length = 0;
|
|
};
|
|
|
|
try {
|
|
const inner = streamSimpleRequest(model, context, { ...requestOptions, apiKey });
|
|
for await (const event of inner) {
|
|
if (!emittedReplayUnsafeEvent && event.type === "start") {
|
|
bufferedEvents.push(event);
|
|
continue;
|
|
}
|
|
if (
|
|
!emittedReplayUnsafeEvent &&
|
|
event.type === "error" &&
|
|
isRetryableUpstreamError(
|
|
event.error,
|
|
extractStatusFromAssistantError(event.error),
|
|
event.error.errorMessage,
|
|
)
|
|
) {
|
|
return { error: createAssistantAuthError(event.error), bufferedEvents, terminalEvent: event };
|
|
}
|
|
flushBuffered();
|
|
emittedReplayUnsafeEvent = true;
|
|
outer.push(event);
|
|
if (outer.done) return undefined;
|
|
}
|
|
flushBuffered();
|
|
if (!outer.done) outer.end(await inner.result());
|
|
} catch (error) {
|
|
if (
|
|
!emittedReplayUnsafeEvent &&
|
|
isRetryableUpstreamError(
|
|
error,
|
|
AIError.status(error),
|
|
error instanceof Error ? error.message : undefined,
|
|
)
|
|
) {
|
|
return { error, bufferedEvents };
|
|
}
|
|
flushBuffered();
|
|
outer.fail(error);
|
|
}
|
|
return undefined;
|
|
};
|
|
const emitFailure = (failure: AuthRetryFailure): void => {
|
|
emitBufferedEvents(outer, failure.bufferedEvents);
|
|
if (failure.terminalEvent) {
|
|
outer.push(failure.terminalEvent);
|
|
} else {
|
|
outer.fail(failure.error);
|
|
}
|
|
};
|
|
|
|
void (async () => {
|
|
let lastKey: string | undefined;
|
|
try {
|
|
lastKey = (await apiKeyResolver({ lastChance: false, error: undefined, signal })) || undefined;
|
|
} catch (error) {
|
|
// A thrown resolver is a broker/OAuth/network failure, not a missing
|
|
// key — surface the cause instead of masking it as "No API key".
|
|
outer.fail(
|
|
new AIError.ConfigurationError(
|
|
`Failed to resolve API key for provider ${model.provider}: ${error instanceof Error ? error.message : String(error)}`,
|
|
{ cause: error },
|
|
),
|
|
);
|
|
return;
|
|
}
|
|
if (lastKey === undefined) {
|
|
if (getProviderDefinition(model.provider)?.allowsMissingApiKey) {
|
|
const failure = await runAttempt();
|
|
if (failure) emitFailure(failure);
|
|
return;
|
|
}
|
|
outer.fail(new AIError.MissingApiKeyError(model.provider));
|
|
return;
|
|
}
|
|
const retryState = createAuthRetryKeyState(lastKey);
|
|
let failure = await runAttempt(lastKey);
|
|
if (!failure) return;
|
|
while (true) {
|
|
// Caller aborted between attempts: don't mint a fresh token or fire
|
|
// another doomed request — emit the captured failure instead.
|
|
if (signal?.aborted) break;
|
|
const nextKey = await resolveNextAuthRetryKey(retryState, apiKeyResolver, failure.error, signal);
|
|
if (nextKey === undefined) break;
|
|
const next = await runAttempt(nextKey);
|
|
if (!next) return;
|
|
failure = next;
|
|
}
|
|
emitFailure(failure);
|
|
})();
|
|
return outer;
|
|
}
|
|
|
|
// Pi-native transport short-circuits the per-provider dispatch entirely:
|
|
// the gateway resolves provider + credential server-side, so we don't
|
|
// need an `apiKey` from `getEnvApiKey` here — `options.apiKey` carries
|
|
// the gateway bearer instead. Comes BEFORE the custom-API check so
|
|
// extension-registered APIs can't accidentally override a configured
|
|
// pi-native transport.
|
|
if (model.transport === "pi-native") {
|
|
return withThinkingLoopGuard(model, requestOptions, opts =>
|
|
withProviderInFlightLimit(model, opts, () => streamPiNative(model, context, opts)),
|
|
);
|
|
}
|
|
|
|
// Check custom API registry (extension-provided APIs)
|
|
const customApiProvider = getCustomApi(model.api);
|
|
if (customApiProvider) {
|
|
return withThinkingLoopGuard(model, requestOptions, opts =>
|
|
withProviderInFlightLimit(model, opts, () => customApiProvider.streamSimple(model, context, opts)),
|
|
);
|
|
}
|
|
|
|
// Vertex AI uses Application Default Credentials, not API keys
|
|
if (model.api === "google-vertex") {
|
|
const providerOptions = mapOptionsForApi(model, requestOptions, undefined);
|
|
return stream(model, context, providerOptions);
|
|
} else if (model.api === "bedrock-converse-stream") {
|
|
// Bedrock doesn't have any API keys instead it sources credentials from standard AWS env variables or from given AWS profile.
|
|
const providerOptions = mapOptionsForApi(model, requestOptions, undefined);
|
|
return stream(model, context, providerOptions);
|
|
} else if (getProviderDefinition(model.provider)?.allowsMissingApiKey) {
|
|
const providerOptions = mapOptionsForApi(
|
|
model,
|
|
requestOptions,
|
|
typeof requestOptions.apiKey === "string" ? requestOptions.apiKey : getEnvApiKey(model.provider),
|
|
);
|
|
return stream(model, context, providerOptions);
|
|
}
|
|
|
|
// The resolver form is handled by the wrapper above; only a static string
|
|
// key reaches this point.
|
|
const apiKey =
|
|
(typeof requestOptions?.apiKey === "string" ? requestOptions.apiKey : undefined) || getEnvApiKey(model.provider);
|
|
if (!apiKey) {
|
|
throw new AIError.MissingApiKeyError(model.provider);
|
|
}
|
|
|
|
// GitLab Duo - wraps Anthropic/OpenAI behind GitLab AI Gateway direct access tokens
|
|
if (isGitLabDuoModel(model)) {
|
|
return withProviderInFlightLimit(model, requestOptions, () =>
|
|
streamGitLabDuo(model, context, {
|
|
...requestOptions,
|
|
apiKey,
|
|
}),
|
|
);
|
|
}
|
|
|
|
// GitLab Duo Workflow - IDE workflow protocol + WebSocket action bridge
|
|
if (model.api === "gitlab-duo-agent") {
|
|
// Does not route through withProviderInFlightLimit, so heal explicitly.
|
|
return healLeakedThinking(
|
|
model,
|
|
streamGitLabDuoWorkflow(model as Model<"gitlab-duo-agent">, context, {
|
|
...requestOptions,
|
|
apiKey,
|
|
}),
|
|
);
|
|
}
|
|
|
|
// Kimi Code - route to dedicated handler that wraps OpenAI or Anthropic API
|
|
if (isKimiModel(model)) {
|
|
// streamKimi handles openai/anthropic format mapping internally, but the
|
|
// mandatory-reasoning clamp is a request-shaping concern owned here: K3's
|
|
// `supports_thinking_type: "only"` endpoint rejects disabled/omitted
|
|
// thinking, so clamp disabled requests to the lowest supported effort
|
|
// (mirrors the mapOptionsForApi path every other provider takes).
|
|
const kimiOptions = normalizeMandatoryReasoningOptions(model, requestOptions);
|
|
return withProviderInFlightLimit(model, kimiOptions, () =>
|
|
streamKimi(model as Model<"openai-completions">, context, {
|
|
...kimiOptions,
|
|
apiKey,
|
|
format: kimiOptions?.kimiApiFormat,
|
|
}),
|
|
);
|
|
}
|
|
|
|
// Synthetic - route to dedicated handler that wraps OpenAI or Anthropic API
|
|
if (isSyntheticModel(model)) {
|
|
// Pass raw SimpleStreamOptions - streamSynthetic handles mapping internally
|
|
return withProviderInFlightLimit(model, requestOptions, () =>
|
|
streamSynthetic(model as Model<"openai-completions">, context, {
|
|
...requestOptions,
|
|
apiKey,
|
|
format: requestOptions?.syntheticApiFormat ?? "openai", // Default to OpenAI format
|
|
}),
|
|
);
|
|
}
|
|
const providerOptions = mapOptionsForApi(model, requestOptions, apiKey);
|
|
return stream(model, context, providerOptions);
|
|
}
|
|
|
|
export async function completeSimple<TApi extends Api>(
|
|
model: Model<TApi>,
|
|
context: Context,
|
|
options?: SimpleStreamOptions,
|
|
): Promise<AssistantMessage> {
|
|
return resolveWithThinkingLoopCook(
|
|
options?.signal,
|
|
() => streamSimple(model, context, options),
|
|
() => streamSimple(model, context, { ...options, loopGuard: { ...options?.loopGuard, enabled: false } }),
|
|
);
|
|
}
|
|
|
|
const MIN_OUTPUT_TOKENS = 1024;
|
|
// Fallback total output cap for models whose catalog entry has no maxTokens.
|
|
const OUTPUT_CAP_WHEN_UNKNOWN = 64_000;
|
|
function maxTokensWithThinkingBudget(
|
|
baseMaxTokens: number | undefined,
|
|
modelMaxTokens: number | null,
|
|
thinkingBudget: number,
|
|
): number {
|
|
const uncappedMaxTokens = baseMaxTokens === undefined ? OUTPUT_CAP_WHEN_UNKNOWN : baseMaxTokens + thinkingBudget;
|
|
return Math.min(uncappedMaxTokens, modelMaxTokens ?? Number.POSITIVE_INFINITY);
|
|
}
|
|
export const OUTPUT_FALLBACK_BUFFER = 4000;
|
|
const ANTHROPIC_USE_INTERLEAVED_THINKING = Bun.env.PI_NO_INTERLEAVED_THINKING !== "1";
|
|
|
|
export const ANTHROPIC_THINKING: Record<Effort, number> = {
|
|
minimal: 1024,
|
|
low: 4096,
|
|
medium: 8192,
|
|
high: 16384,
|
|
xhigh: 32768,
|
|
max: 32768,
|
|
};
|
|
|
|
const GOOGLE_THINKING: Record<Effort, number> = {
|
|
minimal: 1024,
|
|
low: 4096,
|
|
medium: 8192,
|
|
high: 16384,
|
|
xhigh: 24575,
|
|
max: 32768,
|
|
};
|
|
|
|
const BEDROCK_CLAUDE_THINKING: Record<Effort, number> = {
|
|
minimal: 1024,
|
|
low: 2048,
|
|
medium: 8192,
|
|
high: 16384,
|
|
xhigh: 16384,
|
|
max: 32768,
|
|
};
|
|
|
|
function resolveBedrockThinkingBudget(
|
|
model: Model<"bedrock-converse-stream">,
|
|
options?: SimpleStreamOptions,
|
|
): { budget: number; level: Effort } | null {
|
|
if (!options?.reasoning || !model.reasoning) return null;
|
|
const level = requireSupportedEffort(model, options.reasoning);
|
|
const budget = options.thinkingBudgets?.[level] ?? BEDROCK_CLAUDE_THINKING[level];
|
|
return { budget, level };
|
|
}
|
|
|
|
export function mapAnthropicToolChoice(choice?: ToolChoice): AnthropicOptions["toolChoice"] {
|
|
if (!choice) return undefined;
|
|
if (typeof choice === "string") {
|
|
if (choice === "required") return "any";
|
|
if (choice === "auto" || choice === "none" || choice === "any") return choice;
|
|
return undefined;
|
|
}
|
|
if (choice.type === "tool") {
|
|
return choice.name ? { type: "tool", name: choice.name } : undefined;
|
|
}
|
|
if (choice.type === "function") {
|
|
const name = "function" in choice ? choice.function?.name : choice.name;
|
|
return name ? { type: "tool", name } : undefined;
|
|
}
|
|
return undefined;
|
|
}
|
|
|
|
export function mapGoogleToolChoice(
|
|
choice?: ToolChoice,
|
|
): GoogleOptions["toolChoice"] | GoogleGeminiCliOptions["toolChoice"] | GoogleVertexOptions["toolChoice"] {
|
|
if (!choice) return undefined;
|
|
if (typeof choice === "string") {
|
|
if (choice === "required") return "any";
|
|
if (choice === "auto" || choice === "none" || choice === "any") return choice;
|
|
return undefined;
|
|
}
|
|
// Named-tool routing on Google: emit an `ANY`-mode allow-list of one entry,
|
|
// mirroring the Anthropic mapper that returns `{type: "tool", name}`.
|
|
if (choice.type === "tool") {
|
|
return choice.name ? { mode: "ANY", allowedFunctionNames: [choice.name] } : undefined;
|
|
}
|
|
if (choice.type === "function") {
|
|
const name = "function" in choice ? choice.function?.name : choice.name;
|
|
return name ? { mode: "ANY", allowedFunctionNames: [name] } : undefined;
|
|
}
|
|
return undefined;
|
|
}
|
|
|
|
function mapOpenAiToolChoice(choice?: ToolChoice): OpenAICompletionsOptions["toolChoice"] {
|
|
if (!choice) return undefined;
|
|
if (typeof choice === "string") {
|
|
if (choice === "any") return "required";
|
|
if (choice === "auto" || choice === "none" || choice === "required") return choice;
|
|
return undefined;
|
|
}
|
|
if (choice.type === "tool") {
|
|
return choice.name ? { type: "function", function: { name: choice.name } } : undefined;
|
|
}
|
|
if (choice.type === "function") {
|
|
const name = "function" in choice ? choice.function?.name : choice.name;
|
|
return name ? { type: "function", function: { name } } : undefined;
|
|
}
|
|
return undefined;
|
|
}
|
|
|
|
type ReasoningEffortMapCompat = {
|
|
reasoningEffortMap?: Partial<Record<Effort, string>>;
|
|
};
|
|
|
|
function getCompatReasoningEffortMap<TApi extends Api>(
|
|
model: Model<TApi>,
|
|
): Partial<Record<Effort, string>> | undefined {
|
|
const compat = model.compat;
|
|
if (compat === undefined || typeof compat !== "object" || !("reasoningEffortMap" in compat)) {
|
|
return undefined;
|
|
}
|
|
return (compat as ReasoningEffortMapCompat).reasoningEffortMap;
|
|
}
|
|
|
|
function resolveSupportedMappedReasoningEffort<TApi extends Api>(
|
|
model: Model<TApi>,
|
|
reasoning: Effort,
|
|
): Effort | undefined {
|
|
const mapped = getCompatReasoningEffortMap(model)?.[reasoning];
|
|
if (!mapped) return undefined;
|
|
const mappedEffort = mapped as Effort;
|
|
return model.thinking?.efforts.includes(mappedEffort) ? mappedEffort : undefined;
|
|
}
|
|
|
|
function resolveOpenAiReasoningEffort<TApi extends Api>(
|
|
model: Model<TApi>,
|
|
options?: SimpleStreamOptions,
|
|
): Effort | undefined {
|
|
const reasoning = options?.reasoning;
|
|
if (!reasoning || !model.reasoning) return undefined;
|
|
// Models that reason natively but expose no effort dial carry
|
|
// `thinking: undefined` (baked at build time from
|
|
// `compat.supportsReasoningEffort: false` on openai-responses*). The
|
|
// wire-side omitReasoningEffort gate (stream.ts) is the actual strip; returning
|
|
// undefined here avoids a redundant requireSupportedEffort throw that would
|
|
// defeat the gate and surface a confusing "Compaction failed: Thinking effort
|
|
// high is not supported by..." to the user.
|
|
if (!model.thinking) return undefined;
|
|
if (model.thinking.efforts.includes(reasoning)) return reasoning;
|
|
const mappedReasoning = resolveSupportedMappedReasoningEffort(model, reasoning);
|
|
if (mappedReasoning) return mappedReasoning;
|
|
if (getCompatReasoningEffortMap(model)?.[reasoning] !== undefined) return reasoning;
|
|
if (model.thinking.effortMap?.[reasoning] !== undefined) return reasoning;
|
|
return requireSupportedEffort(model, reasoning);
|
|
}
|
|
|
|
function resolveGoogleThinkingOff<TApi extends Api>(model: Model<TApi>): NonNullable<GoogleOptions["thinking"]> {
|
|
const thinking: NonNullable<GoogleOptions["thinking"]> = { enabled: false };
|
|
if (!model.reasoning || !model.thinking) return thinking;
|
|
if (model.thinking.mode === "budget" && (!model.thinking.requiresEffort || model.thinking.suppressWhenOff)) {
|
|
thinking.budgetTokens = 0;
|
|
} else if (model.thinking.mode === "google-level" && model.thinking.suppressWhenOff) {
|
|
thinking.level = "MINIMAL";
|
|
}
|
|
return thinking;
|
|
}
|
|
|
|
const castApi = <TApi extends Api>(api: OptionsForApi<TApi>): OptionsForApi<Api> => api as OptionsForApi<Api>;
|
|
|
|
/**
|
|
* Mandatory-reasoning endpoints (`thinking.requiresEffort`) reject disabled
|
|
* or omitted thinking ("Reasoning is mandatory for this endpoint and cannot
|
|
* be disabled") — clamp to the lowest supported effort instead.
|
|
* `suppressWhenOff` models handle off provider-side via explicit wire
|
|
* suppression. Collapsed pairs interplay: pair derivation strips member
|
|
* flags (off routes to a bare SKU that CAN disable), while identity backfill
|
|
* re-flags pairs whose logical id is itself mandatory (Gemini 3.x) — there
|
|
* the clamp wins and the floored effort routes to the thinking SKU.
|
|
*/
|
|
function normalizeMandatoryReasoningOptions<TApi extends Api>(
|
|
model: Model<TApi>,
|
|
options?: SimpleStreamOptions,
|
|
): SimpleStreamOptions | undefined {
|
|
if (
|
|
!model.reasoning ||
|
|
!model.thinking?.requiresEffort ||
|
|
model.thinking.suppressWhenOff ||
|
|
(options?.reasoning !== undefined && !options.disableReasoning && !options.forceReasoningOff)
|
|
) {
|
|
return options;
|
|
}
|
|
const floor = minimumSupportedEffort(model);
|
|
if (floor === undefined) return options;
|
|
return { ...options, reasoning: floor, disableReasoning: undefined, forceReasoningOff: undefined };
|
|
}
|
|
|
|
function supportsExplicitOpenAIResponsesPromptCache(compat: unknown): boolean {
|
|
return (
|
|
typeof compat === "object" &&
|
|
compat !== null &&
|
|
"supportsPromptCacheBreakpoints" in compat &&
|
|
compat.supportsPromptCacheBreakpoints === true
|
|
);
|
|
}
|
|
|
|
function isOpenAIResponsesPromptCacheSurface<TApi extends Api>(model: Model<TApi>): boolean {
|
|
return (
|
|
model.api === "openai-responses" ||
|
|
model.api === "azure-openai-responses" ||
|
|
(model.api === "openrouter" && $env.PI_OPENROUTER_RESPONSES !== "0")
|
|
);
|
|
}
|
|
|
|
function assertExplicitOpenAIResponsesPromptCacheSupport<TApi extends Api>(
|
|
model: Model<TApi>,
|
|
options?: StreamOptions,
|
|
): void {
|
|
if (
|
|
model.transport === "pi-native" ||
|
|
resolveCacheRetention(options?.cacheRetention) === "none" ||
|
|
options?.promptCache?.mode !== "explicit" ||
|
|
!isOpenAIResponsesPromptCacheSurface(model) ||
|
|
supportsExplicitOpenAIResponsesPromptCache(model.compat)
|
|
) {
|
|
return;
|
|
}
|
|
throw new AIError.ConfigurationError(
|
|
`OpenAI explicit prompt caching is unsupported for ${model.provider}/${model.id}; enable compat.supportsPromptCacheBreakpoints only for a compatible endpoint.`,
|
|
);
|
|
}
|
|
|
|
function mapOptionsForApi<TApi extends Api>(
|
|
model: Model<TApi>,
|
|
rawOptions?: SimpleStreamOptions,
|
|
apiKey?: string,
|
|
): OptionsForApi<TApi> {
|
|
const options = normalizeMandatoryReasoningOptions(model, rawOptions);
|
|
const simpleProviderOptions = getProviderDefinition(model.provider)?.mapSimpleOptions?.(options ?? {});
|
|
const base = {
|
|
temperature: options?.temperature,
|
|
topP: options?.topP,
|
|
topK: options?.topK,
|
|
minP: options?.minP,
|
|
presencePenalty: options?.presencePenalty,
|
|
repetitionPenalty: options?.repetitionPenalty,
|
|
maxTokens: options?.maxTokens ?? model.maxTokens ?? undefined,
|
|
signal: options?.signal,
|
|
apiKey: apiKey ?? (typeof options?.apiKey === "string" ? options.apiKey : undefined),
|
|
cacheRetention: options?.cacheRetention,
|
|
headers: options?.headers,
|
|
initiatorOverride: options?.initiatorOverride,
|
|
maxRetryDelayMs: options?.maxRetryDelayMs,
|
|
metadata: options?.metadata,
|
|
taskBudget: options?.taskBudget,
|
|
sessionId: options?.sessionId,
|
|
promptCacheKey: options?.promptCacheKey,
|
|
streamFirstEventTimeoutMs: options?.streamFirstEventTimeoutMs,
|
|
streamIdleTimeoutMs: options?.streamIdleTimeoutMs,
|
|
codexSseMaxAttempts: options?.codexSseMaxAttempts,
|
|
providerSessionState: options?.providerSessionState,
|
|
maxInFlightRequests: options?.maxInFlightRequests,
|
|
onPayload: options?.onPayload,
|
|
onResponse: options?.onResponse,
|
|
onSseEvent: options?.onSseEvent,
|
|
execHandlers: options?.execHandlers,
|
|
fetch: options?.fetch,
|
|
fallbacks: options?.fallbacks,
|
|
acceptEmptyResponse: options?.acceptEmptyResponse,
|
|
anthropicCacheRefreshRequest: options?.anthropicCacheRefreshRequest,
|
|
...simpleProviderOptions,
|
|
};
|
|
|
|
switch (model.api) {
|
|
case "anthropic-messages": {
|
|
// Explicitly disable thinking when reasoning is not specified, the caller
|
|
// disabled it, an external scratchpad replaces it, or the model doesn't
|
|
// support it. These SimpleStreamOptions flags never reach AnthropicOptions
|
|
// on their own, so fold them into thinkingEnabled here (mandatory-reasoning
|
|
// models already clamp them away in normalizeMandatoryReasoningOptions).
|
|
const reasoning = options?.reasoning;
|
|
if (!reasoning || !model.reasoning || options?.disableReasoning || options?.forceReasoningOff) {
|
|
return castApi<"anthropic-messages">({
|
|
...base,
|
|
requestModelId: resolveWireModelId(model, undefined),
|
|
thinkingEnabled: false,
|
|
toolChoice: mapAnthropicToolChoice(options?.toolChoice),
|
|
thinkingDisplay: options?.hideThinkingSummary ? "omitted" : undefined,
|
|
serviceTier: options?.serviceTier,
|
|
});
|
|
}
|
|
|
|
let thinkingBudget = options.thinkingBudgets?.[reasoning] ?? ANTHROPIC_THINKING[reasoning];
|
|
if (thinkingBudget <= 0) {
|
|
return castApi<"anthropic-messages">({
|
|
...base,
|
|
requestModelId: resolveWireModelId(model, undefined),
|
|
thinkingEnabled: false,
|
|
toolChoice: mapAnthropicToolChoice(options?.toolChoice),
|
|
thinkingDisplay: options?.hideThinkingSummary ? "omitted" : undefined,
|
|
serviceTier: options?.serviceTier,
|
|
});
|
|
}
|
|
|
|
const thinkingMode = model.thinking?.mode;
|
|
const effort =
|
|
thinkingMode === "anthropic-adaptive" || thinkingMode === "anthropic-budget-effort"
|
|
? mapEffortToAnthropicAdaptiveEffort(model, reasoning)
|
|
: undefined;
|
|
|
|
// For Opus 4.6+ and Sonnet 4.6+: use adaptive thinking with effort level
|
|
// For older models: use budget-based thinking
|
|
if (thinkingMode === "anthropic-adaptive") {
|
|
return castApi<"anthropic-messages">({
|
|
...base,
|
|
requestModelId: resolveWireModelId(model, reasoning),
|
|
thinkingEnabled: true,
|
|
effort,
|
|
toolChoice: mapAnthropicToolChoice(options?.toolChoice),
|
|
thinkingDisplay: options?.hideThinkingSummary ? "omitted" : undefined,
|
|
serviceTier: options?.serviceTier,
|
|
});
|
|
}
|
|
|
|
if (ANTHROPIC_USE_INTERLEAVED_THINKING) {
|
|
return castApi<"anthropic-messages">({
|
|
...base,
|
|
requestModelId: resolveWireModelId(model, reasoning),
|
|
thinkingEnabled: true,
|
|
thinkingBudgetTokens: thinkingBudget,
|
|
effort,
|
|
toolChoice: mapAnthropicToolChoice(options?.toolChoice),
|
|
thinkingDisplay: options?.hideThinkingSummary ? "omitted" : undefined,
|
|
serviceTier: options?.serviceTier,
|
|
});
|
|
}
|
|
|
|
// Caller's maxTokens is desired output, so add thinking budget on top. With no caller/model cap, use a finite total fallback.
|
|
const maxTokens = maxTokensWithThinkingBudget(base.maxTokens, model.maxTokens, thinkingBudget);
|
|
|
|
// If not enough room for thinking + output, reduce thinking budget
|
|
if (maxTokens <= thinkingBudget) {
|
|
thinkingBudget = maxTokens - MIN_OUTPUT_TOKENS;
|
|
}
|
|
|
|
// If thinking budget is too low, disable thinking
|
|
if (thinkingBudget <= 0) {
|
|
return castApi<"anthropic-messages">({
|
|
...base,
|
|
requestModelId: resolveWireModelId(model, undefined),
|
|
thinkingEnabled: false,
|
|
toolChoice: mapAnthropicToolChoice(options?.toolChoice),
|
|
thinkingDisplay: options?.hideThinkingSummary ? "omitted" : undefined,
|
|
serviceTier: options?.serviceTier,
|
|
});
|
|
} else {
|
|
return castApi<"anthropic-messages">({
|
|
...base,
|
|
maxTokens,
|
|
requestModelId: resolveWireModelId(model, reasoning),
|
|
thinkingEnabled: true,
|
|
thinkingBudgetTokens: thinkingBudget,
|
|
effort,
|
|
toolChoice: mapAnthropicToolChoice(options?.toolChoice),
|
|
thinkingDisplay: options?.hideThinkingSummary ? "omitted" : undefined,
|
|
serviceTier: options?.serviceTier,
|
|
});
|
|
}
|
|
}
|
|
|
|
case "bedrock-converse-stream": {
|
|
const bedrockBase: BedrockOptions = {
|
|
...base,
|
|
reasoning: options?.reasoning,
|
|
thinkingBudgets: options?.thinkingBudgets,
|
|
toolChoice: mapAnthropicToolChoice(options?.toolChoice),
|
|
thinkingDisplay: options?.hideThinkingSummary ? "omitted" : undefined,
|
|
};
|
|
// Adaptive mode sends effort directly, no budget_tokens — skip budget inflation.
|
|
if (model.thinking?.mode === "anthropic-adaptive") {
|
|
return castApi<"bedrock-converse-stream">(bedrockBase);
|
|
}
|
|
const budgetInfo = resolveBedrockThinkingBudget(model as Model<"bedrock-converse-stream">, options);
|
|
if (!budgetInfo) return bedrockBase as OptionsForApi<TApi>;
|
|
let maxTokens = bedrockBase.maxTokens ?? model.maxTokens ?? OUTPUT_CAP_WHEN_UNKNOWN;
|
|
let thinkingBudgets = bedrockBase.thinkingBudgets;
|
|
if (maxTokens <= budgetInfo.budget) {
|
|
const desiredMaxTokens = Math.min(
|
|
model.maxTokens ?? Number.POSITIVE_INFINITY,
|
|
budgetInfo.budget + MIN_OUTPUT_TOKENS,
|
|
);
|
|
if (desiredMaxTokens > maxTokens) {
|
|
maxTokens = desiredMaxTokens;
|
|
}
|
|
}
|
|
if (maxTokens <= budgetInfo.budget) {
|
|
const adjustedBudget = Math.max(0, maxTokens - MIN_OUTPUT_TOKENS);
|
|
thinkingBudgets = { ...(thinkingBudgets ?? {}), [budgetInfo.level]: adjustedBudget };
|
|
}
|
|
return castApi<"bedrock-converse-stream">({ ...bedrockBase, maxTokens, thinkingBudgets });
|
|
}
|
|
|
|
case "openrouter": {
|
|
const useResponses = $env.PI_OPENROUTER_RESPONSES !== "0";
|
|
if (useResponses) {
|
|
return castApi<"openai-responses">({
|
|
...base,
|
|
reasoning: resolveOpenAiReasoningEffort(model, options),
|
|
toolChoice: mapOpenAiToolChoice(options?.toolChoice),
|
|
serviceTier: options?.serviceTier,
|
|
reasoningSummary: options?.hideThinkingSummary ? null : undefined,
|
|
openrouterVariant: options?.openrouterVariant,
|
|
maxTokensExplicit: rawOptions?.maxTokens !== undefined,
|
|
disableReasoning: options?.disableReasoning,
|
|
textVerbosity: options?.textVerbosity,
|
|
promptCache: options?.promptCache,
|
|
statefulResponses: options?.statefulResponses,
|
|
});
|
|
}
|
|
return castApi<"openai-completions">({
|
|
...base,
|
|
reasoning: resolveOpenAiReasoningEffort(model, options),
|
|
disableReasoning: options?.disableReasoning,
|
|
toolChoice: mapOpenAiToolChoice(options?.toolChoice),
|
|
serviceTier: options?.serviceTier,
|
|
openrouterVariant: options?.openrouterVariant,
|
|
maxTokensExplicit: rawOptions?.maxTokens !== undefined,
|
|
promptCache: options?.promptCache,
|
|
});
|
|
}
|
|
|
|
case "openai-completions":
|
|
return castApi<"openai-completions">({
|
|
...base,
|
|
reasoning: resolveOpenAiReasoningEffort(model, options),
|
|
disableReasoning: options?.disableReasoning,
|
|
toolChoice: mapOpenAiToolChoice(options?.toolChoice),
|
|
serviceTier: options?.serviceTier,
|
|
openrouterVariant: options?.openrouterVariant,
|
|
maxTokensExplicit: rawOptions?.maxTokens !== undefined,
|
|
promptCache: options?.promptCache,
|
|
});
|
|
|
|
case "openai-responses":
|
|
return castApi<"openai-responses">({
|
|
...base,
|
|
reasoning: resolveOpenAiReasoningEffort(model, options),
|
|
toolChoice: mapOpenAiToolChoice(options?.toolChoice),
|
|
serviceTier: options?.serviceTier,
|
|
reasoningSummary: options?.hideThinkingSummary ? null : undefined,
|
|
openrouterVariant: options?.openrouterVariant,
|
|
maxTokensExplicit: rawOptions?.maxTokens !== undefined,
|
|
disableReasoning: options?.disableReasoning,
|
|
forceReasoningOff: options?.forceReasoningOff,
|
|
textVerbosity: options?.textVerbosity,
|
|
promptCache: options?.promptCache,
|
|
statefulResponses: options?.statefulResponses,
|
|
});
|
|
|
|
case "azure-openai-responses":
|
|
return castApi<"azure-openai-responses">({
|
|
...base,
|
|
reasoning: resolveOpenAiReasoningEffort(model, options),
|
|
toolChoice: mapOpenAiToolChoice(options?.toolChoice),
|
|
serviceTier: options?.serviceTier,
|
|
reasoningSummary: options?.hideThinkingSummary ? null : undefined,
|
|
promptCache: options?.promptCache,
|
|
statefulResponses: options?.statefulResponses,
|
|
disableReasoning: options?.disableReasoning || options?.forceReasoningOff,
|
|
forceReasoningOff: options?.forceReasoningOff,
|
|
});
|
|
|
|
case "openai-codex-responses":
|
|
return castApi<"openai-codex-responses">({
|
|
...base,
|
|
reasoning: resolveOpenAiReasoningEffort(model, options),
|
|
toolChoice: mapOpenAiToolChoice(options?.toolChoice),
|
|
serviceTier: options?.serviceTier,
|
|
preferWebsockets: options?.preferWebsockets,
|
|
codexCompaction: options?.codexCompaction,
|
|
reasoningSummary: options?.hideThinkingSummary ? null : undefined,
|
|
textVerbosity: options?.textVerbosity,
|
|
forceReasoningOff: options?.forceReasoningOff,
|
|
});
|
|
|
|
case "google-generative-ai": {
|
|
// Explicitly disable thinking when reasoning is absent, unsupported, or
|
|
// replaced by the caller's external scratchpad. Gemini defaults thinking on.
|
|
const reasoning = options?.reasoning;
|
|
if (!reasoning || !model.reasoning || options?.disableReasoning || options?.forceReasoningOff) {
|
|
return castApi<"google-generative-ai">({
|
|
...base,
|
|
serviceTier: options?.serviceTier,
|
|
thinking: resolveGoogleThinkingOff(model),
|
|
toolChoice: mapGoogleToolChoice(options?.toolChoice),
|
|
cachedContent: options?.cachedContent,
|
|
});
|
|
}
|
|
|
|
const googleModel = model as Model<"google-generative-ai">;
|
|
const effort = requireSupportedEffort(googleModel, reasoning);
|
|
|
|
// Gemini 3+ models use thinkingLevel exclusively instead of thinkingBudget.
|
|
// https://ai.google.dev/gemini-api/docs/thinking#set-budget
|
|
if (googleModel.thinking?.mode === "google-level") {
|
|
return castApi<"google-generative-ai">({
|
|
...base,
|
|
serviceTier: options?.serviceTier,
|
|
thinking: {
|
|
enabled: true,
|
|
level: mapEffortToGoogleThinkingLevel(effort),
|
|
},
|
|
hideThinkingSummary: options?.hideThinkingSummary,
|
|
toolChoice: mapGoogleToolChoice(options?.toolChoice),
|
|
cachedContent: options?.cachedContent,
|
|
});
|
|
}
|
|
|
|
return castApi<"google-generative-ai">({
|
|
...base,
|
|
thinking: {
|
|
enabled: true,
|
|
budgetTokens: getGoogleBudget(googleModel, effort, options?.thinkingBudgets),
|
|
},
|
|
hideThinkingSummary: options?.hideThinkingSummary,
|
|
toolChoice: mapGoogleToolChoice(options?.toolChoice),
|
|
cachedContent: options?.cachedContent,
|
|
});
|
|
}
|
|
|
|
case "google-gemini-cli": {
|
|
const reasoning = options?.reasoning;
|
|
const toolChoice = mapGoogleToolChoice(options?.toolChoice);
|
|
if (reasoning && model.reasoning && !options?.disableReasoning && !options?.forceReasoningOff) {
|
|
const effort = requireSupportedEffort(model, reasoning);
|
|
|
|
// Gemini 3+ models use thinkingLevel instead of thinkingBudget
|
|
if (model.thinking?.mode === "google-level") {
|
|
return castApi<"google-gemini-cli">({
|
|
...base,
|
|
requestModelId: resolveWireModelId(model, effort),
|
|
thinking: {
|
|
enabled: true,
|
|
level: mapEffortToGoogleThinkingLevel(effort),
|
|
},
|
|
hideThinkingSummary: options?.hideThinkingSummary,
|
|
toolChoice,
|
|
antigravityEndpointMode: options?.antigravityEndpointMode,
|
|
});
|
|
}
|
|
|
|
let thinkingBudget =
|
|
options.thinkingBudgets?.[effort] ?? model.thinking?.effortBudgets?.[effort] ?? GOOGLE_THINKING[effort];
|
|
|
|
// Caller's maxTokens is desired output, so add thinking budget on top. With no caller/model cap, use a finite total fallback.
|
|
const maxTokens = maxTokensWithThinkingBudget(base.maxTokens, model.maxTokens, thinkingBudget);
|
|
|
|
// If not enough room for thinking + output, reduce thinking budget
|
|
if (maxTokens <= thinkingBudget) {
|
|
thinkingBudget = Math.max(0, maxTokens - MIN_OUTPUT_TOKENS);
|
|
}
|
|
|
|
if (thinkingBudget > 0) {
|
|
return castApi<"google-gemini-cli">({
|
|
...base,
|
|
maxTokens,
|
|
requestModelId: resolveWireModelId(model, effort),
|
|
thinking: { enabled: true, budgetTokens: thinkingBudget },
|
|
hideThinkingSummary: options?.hideThinkingSummary,
|
|
toolChoice,
|
|
antigravityEndpointMode: options?.antigravityEndpointMode,
|
|
});
|
|
}
|
|
// Budget clamped to zero — fall through to the thinking-off path.
|
|
}
|
|
|
|
const thinking: GoogleGeminiCliOptions["thinking"] = { enabled: false };
|
|
if (model.reasoning && model.thinking?.suppressWhenOff) {
|
|
// CCA re-applies the per-id baked server default when the config
|
|
// is omitted; suppression must be explicit on the wire.
|
|
thinking.suppress = model.thinking.mode === "google-level" ? { level: "MINIMAL" } : { budget: 0 };
|
|
}
|
|
return castApi<"google-gemini-cli">({
|
|
...base,
|
|
requestModelId: resolveWireModelId(model, undefined),
|
|
thinking,
|
|
toolChoice,
|
|
antigravityEndpointMode: options?.antigravityEndpointMode,
|
|
});
|
|
}
|
|
|
|
case "google-vertex": {
|
|
// Explicitly disable thinking when reasoning is absent, unsupported, or
|
|
// replaced by the caller's external scratchpad.
|
|
const reasoning = options?.reasoning;
|
|
if (!reasoning || !model.reasoning || options?.disableReasoning || options?.forceReasoningOff) {
|
|
return castApi<"google-vertex">({
|
|
...base,
|
|
serviceTier: options?.serviceTier,
|
|
thinking: resolveGoogleThinkingOff(model),
|
|
toolChoice: mapGoogleToolChoice(options?.toolChoice),
|
|
cachedContent: options?.cachedContent,
|
|
});
|
|
}
|
|
|
|
const vertexModel = model as Model<"google-vertex">;
|
|
const effort = requireSupportedEffort(vertexModel, reasoning);
|
|
const geminiModel = vertexModel as unknown as Model<"google-generative-ai">;
|
|
|
|
if (geminiModel.thinking?.mode === "google-level") {
|
|
return castApi<"google-vertex">({
|
|
...base,
|
|
serviceTier: options?.serviceTier,
|
|
thinking: {
|
|
enabled: true,
|
|
level: mapEffortToGoogleThinkingLevel(effort),
|
|
},
|
|
hideThinkingSummary: options?.hideThinkingSummary,
|
|
toolChoice: mapGoogleToolChoice(options?.toolChoice),
|
|
cachedContent: options?.cachedContent,
|
|
});
|
|
}
|
|
|
|
return castApi<"google-vertex">({
|
|
...base,
|
|
serviceTier: options?.serviceTier,
|
|
thinking: {
|
|
enabled: true,
|
|
budgetTokens: getGoogleBudget(geminiModel, effort, options?.thinkingBudgets),
|
|
},
|
|
hideThinkingSummary: options?.hideThinkingSummary,
|
|
toolChoice: mapGoogleToolChoice(options?.toolChoice),
|
|
cachedContent: options?.cachedContent,
|
|
});
|
|
}
|
|
|
|
case "ollama-chat":
|
|
return castApi<"ollama-chat">({
|
|
...base,
|
|
reasoning: resolveOpenAiReasoningEffort(model, options),
|
|
disableReasoning: options?.disableReasoning,
|
|
toolChoice: options?.toolChoice,
|
|
});
|
|
|
|
case "cursor-agent": {
|
|
const execHandlers = options?.cursorExecHandlers ?? options?.execHandlers;
|
|
const onToolResult = options?.cursorOnToolResult ?? execHandlers?.onToolResult;
|
|
return castApi<"cursor-agent">({
|
|
...base,
|
|
execHandlers,
|
|
onToolResult,
|
|
});
|
|
}
|
|
|
|
case "gitlab-duo-agent":
|
|
return castApi<"gitlab-duo-agent">({
|
|
...base,
|
|
cwd: options?.cwd,
|
|
toolChoice: options?.toolChoice,
|
|
});
|
|
case "devin-agent": {
|
|
const devinModel = model as Model<"devin-agent">;
|
|
const effort =
|
|
options?.reasoning && !options.disableReasoning
|
|
? requireSupportedEffort(devinModel, options.reasoning)
|
|
: undefined;
|
|
return castApi<"devin-agent">({
|
|
...base,
|
|
chatModelUid: resolveWireModelId(devinModel, effort),
|
|
});
|
|
}
|
|
default:
|
|
throw new AIError.ConfigurationError(`Unhandled API in mapOptionsForApi: ${model.api}`);
|
|
}
|
|
}
|
|
|
|
function getGoogleBudget(
|
|
model: Model<"google-generative-ai">,
|
|
effort: Effort,
|
|
customBudgets?: ThinkingBudgets,
|
|
): number {
|
|
requireSupportedEffort(model, effort);
|
|
|
|
// Custom budgets take precedence if provided for this level
|
|
if (customBudgets?.[effort] !== undefined) {
|
|
return customBudgets[effort]!;
|
|
}
|
|
|
|
// See https://ai.google.dev/gemini-api/docs/thinking#set-budget
|
|
if (model.id.includes("2.5-")) {
|
|
switch (effort) {
|
|
case "minimal":
|
|
return 128;
|
|
case "low":
|
|
return 2048;
|
|
case "medium":
|
|
return 8192;
|
|
case "high":
|
|
case "xhigh":
|
|
case "max":
|
|
return model.id.includes("2.5-flash") ? 24576 : 32768;
|
|
}
|
|
}
|
|
|
|
// Unknown model - use dynamic
|
|
return -1;
|
|
}
|