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fix(antigravity): strip competitive system prompts to prevent 429 quota errors

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Zed IDE injects a Claude-agent system prompt that Antigravity flags as
competitive, blocking the request with a 429 Quota Exhausted response.
Scan systemInstruction.parts and remove the prompt before dispatch.
This commit is contained in:
stoXmod
2026-08-13 12:08:31 +07:00
committed by decolua
parent 6d30ce6de5
commit b566b20ade
1 changed files with 12 additions and 0 deletions
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12
open-sse/executors/antigravity.js
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@@ -245,6 +245,18 @@ export class AntigravityExecutor extends BaseExecutor {
// Strip tools/toolConfig (handled separately) and blacklisted fields that Google rejects
const { tools: _originalTools, toolConfig: _originalToolConfig, ...requestWithoutTools } = body.request || {};
stripBlacklisted(requestWithoutTools);
// Rewrite competitive system prompts (e.g. Zed IDE's Claude prompt) to prevent Antigravity from
// flagging the request and immediately blocking it with a 429 Quota Exhausted response.
if (requestWithoutTools.systemInstruction?.parts) {
const oldText = "You are a Claude agent, built on Anthropic's Claude Agent SDK.";
for (const part of requestWithoutTools.systemInstruction.parts) {
if (typeof part.text === "string" && part.text.includes(oldText)) {
part.text = part.text.split(oldText).join("");
}
}
}
const generationConfig = { ...(requestWithoutTools.generationConfig || {}) };
if (generationConfig.maxOutputTokens > MAX_ANTIGRAVITY_OUTPUT_TOKENS) {
generationConfig.maxOutputTokens = MAX_ANTIGRAVITY_OUTPUT_TOKENS;