agentDir: params.agentDir,

authStore: params.authStore,

});

const preferMinimaxTextExtraction =

providerOk &&

isMinimaxVlmProvider(primary.provider) &&

minimaxTextExtractionCandidates.length > 0;

if (params.cfg?.models?.providers && typeof params.cfg.models.providers === "object") {

for (const [providerKey, providerCfg] of Object.entries(params.cfg.models.providers)) {

}

}

const fallbackCandidates = preferMinimaxTextExtraction

? [...nativePdfCandidates, ...minimaxTextExtractionCandidates, ...genericImageCandidates]

: [...nativePdfCandidates, ...genericImageCandidates, ...minimaxTextExtractionCandidates];

if (primary.provider === "google" && googleOk && providerVision && primarySupportsNativePdf) {

preferred = providerVision;

} else if (providerOk && primarySupportsNativePdf && (providerVision || providerDefault)) {

preferred = providerVision ?? `${primary.provider}/${providerDefault}`;

} else {

preferred =

nativePdfCandidates[0] ??

minimaxTextExtractionCandidates[0] ??

genericImageCandidates[0] ??

null;

preferred = fallbackCandidates[0] ?? null;

}

if (preferred?.trim()) {

for (const candidate of [

...nativePdfCandidates,

...minimaxTextExtractionCandidates,

...genericImageCandidates,

]) {

for (const candidate of fallbackCandidates) {

if (candidate !== preferred) {

addFallback(candidate);

}