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Fix: AIMLAPI silently truncates tool call output at 512 tokens #2

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Merged
D1m7asis merged 2 commits into from
Mar 5, 2026
Merged

Fix: AIMLAPI silently truncates tool call output at 512 tokens #2

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04e603c
fix: add openclaw-aimlapi to CORE_PACKAGE_NAMES for template resolution
uniuuu Feb 21, 2026
57a929f
fix: default max_tokens to 32768 to prevent silent tool call truncation
uniuuu Feb 21, 2026
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8 changes: 7 additions & 1 deletion src/agents/pi-embedded-runner/extra-params.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,10 @@ import { streamSimple } from "@mariozechner/pi-ai";
import type { OpenClawConfig } from "../../config/config.js";
import { log } from "./logger.js";

// AIMLAPI defaults max_tokens to 512 when not set, which truncates tool call JSON.
// Override with a safe default so tool calls are never silently cut off.
const AIMLAPI_DEFAULT_MAX_TOKENS = 32768;

const OPENROUTER_APP_HEADERS: Record<string, string> = {
"HTTP-Referer": "https://openclaw.ai",
"X-Title": "OpenClaw",
Expand Down Expand Up @@ -337,7 +341,9 @@ export function applyExtraParamsToAgent(
Object.entries(extraParamsOverride).filter(([, value]) => value !== undefined),
)
: undefined;
const merged = Object.assign({}, extraParams, override);
const providerDefaults: Record<string, unknown> =
provider === "aimlapi" ? { maxTokens: AIMLAPI_DEFAULT_MAX_TOKENS } : {};
const merged = Object.assign({}, providerDefaults, extraParams, override);
const wrappedStreamFn = createStreamFnWithExtraParams(agent.streamFn, merged, provider);

if (wrappedStreamFn) {
Expand Down
2 changes: 1 addition & 1 deletion src/infra/openclaw-root.ts
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Expand Up @@ -3,7 +3,7 @@ import fs from "node:fs/promises";
import path from "node:path";
import { fileURLToPath } from "node:url";

const CORE_PACKAGE_NAMES = new Set(["openclaw"]);
const CORE_PACKAGE_NAMES = new Set(["openclaw", "openclaw-aimlapi"]);

async function readPackageName(dir: string): Promise<string | null> {
try {
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