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fix: downgrade unsigned gemini thinking

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This commit is contained in:
Peter Steinberger
2026-01-15 04:42:01 +00:00
parent fa4670c5fe
commit 5fdaef3646
5 changed files with 236 additions and 3 deletions
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10
src/agents/pi-embedded-runner/google.ts
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@@ -3,6 +3,7 @@ import type { SessionManager } from "@mariozechner/pi-coding-agent";
import { registerUnhandledRejectionHandler } from "../../infra/unhandled-rejections.js";
import {
downgradeGeminiThinkingBlocks,
downgradeGeminiHistory,
isCompactionFailureError,
isGoogleModelApi,
@@ -148,10 +149,13 @@ export async function sanitizeSessionHistory(params: {
enforceToolCallLast: params.modelApi === "anthropic-messages",
});
const repairedTools = sanitizeToolUseResultPairing(sanitizedImages);
const downgraded = isGoogleModelApi(params.modelApi)
? downgradeGeminiHistory(repairedTools)
// Gemini rejects unsigned thinking blocks; downgrade them before send to avoid INVALID_ARGUMENT.
const downgradedThinking = isGoogleModelApi(params.modelApi)
? downgradeGeminiThinkingBlocks(repairedTools)
: repairedTools;
const downgraded = isGoogleModelApi(params.modelApi)
? downgradeGeminiHistory(downgradedThinking)
: downgradedThinking;
return applyGoogleTurnOrderingFix({
messages: downgraded,