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fix(opencode): cloak Responses requests that already have tools

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Free-tier Zen models reject Responses requests with 403 FreeTierError
when client tools are present but the fingerprint quartet is missing.
Apply the fingerprint tools to every OpenCode request, canonicalise
case variants of the quartet (Bash->bash) without duplication, and
restore the caller's original spellings on the response side via a
request-local WeakMap threaded through the existing toolNameMap.
This commit is contained in:
Aaron
2026-09-19 10:10:43 +07:00
committed by decolua
parent 49185137b8
commit 822aa958d1
8 changed files with 506 additions and 103 deletions
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7
open-sse/handlers/chatCore.js
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@@ -20,6 +20,7 @@ import { handleNonStreamingResponse } from "./chatCore/nonStreamingHandler.js";
import { handleStreamingResponse, buildOnStreamComplete } from "./chatCore/streamingHandler.js";
import { detectClientTool, isNativePassthrough } from "../utils/clientDetector.js";
import { dedupeTools } from "../utils/toolDeduper.js";
import { takeRenamedToolNames } from "../utils/opencodeFingerprint.js";
import { injectCaveman } from "../rtk/caveman.js";
import { injectPonytail } from "../rtk/ponytail.js";
import { compressMessages, formatRtkLog } from "../rtk/index.js";
@@ -376,6 +377,10 @@ export async function handleChatCore({ body, modelInfo, credentials, log, onCred
providerHeaders = result.headers;
finalBody = result.transformedBody;
providerResponseFormat = result.responseFormat || targetFormat;
const renamedToolNames = takeRenamedToolNames(translatedBody);
if (renamedToolNames?.size) {
toolNameMap = new Map([...(toolNameMap || []), ...renamedToolNames]);
}
reqLogger.logTargetRequest(providerUrl, providerHeaders, finalBody);
} catch (error) {
trackPendingRequest(model, provider, connectionId, false, true);
@@ -480,7 +485,7 @@ export async function handleChatCore({ body, modelInfo, credentials, log, onCred
// Provider forced streaming but client wants JSON
if (!clientRequestedStreaming && providerRequiresStreaming) {
const result = await handleForcedSSEToJson({ ...sharedCtx, providerResponse, sourceFormat, targetFormat: providerResponseFormat, customToolNames, trackDone, appendLog });
const result = await handleForcedSSEToJson({ ...sharedCtx, providerResponse, sourceFormat, targetFormat: providerResponseFormat, customToolNames, toolNameMap, trackDone, appendLog });
if (result) { streamController.handleComplete(); return result; }
}