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fix: accurate quota reporting with project ID and improved rate limit handling

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- Pass project ID to fetchAvailableModels for accurate per-project quota
- Treat missing remainingFraction with resetTime as 0% (exhausted)
- Fix double-escaped regex in rate-limit-parser.js (\\d -> \d)
- Use ANTIGRAVITY_HEADERS for loadCodeAssist consistency
- Store actual reset time from API instead of capping at default
- Add getRateLimitInfo() for detailed rate limit state
- Handle disabled accounts in rate limit checks

Fixes issue where free tier accounts showed 100% quota but were actually exhausted.

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
Badri Narayanan S
2026-01-15 16:18:13 +05:30
parent a20cba90ee
commit 77363c679e
8 changed files with 252 additions and 163 deletions
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139
src/cloudcode/message-handler.js
View File

@@ -9,6 +9,7 @@ import {
ANTIGRAVITY_ENDPOINT_FALLBACKS,
MAX_RETRIES,
MAX_WAIT_BEFORE_ERROR_MS,
DEFAULT_COOLDOWN_MS,
isThinkingModel
} from '../constants.js';
import { convertGoogleToAnthropic } from '../format/index.js';
@@ -39,67 +40,56 @@ export async function sendMessage(anthropicRequest, accountManager, fallbackEnab
// Retry loop with account failover
// Ensure we try at least as many times as there are accounts to cycle through everyone
// +1 to ensure we hit the "all accounts rate-limited" check at the start of the next loop
const maxAttempts = Math.max(MAX_RETRIES, accountManager.getAccountCount() + 1);
for (let attempt = 0; attempt < maxAttempts; attempt++) {
// Use sticky account selection for cache continuity
const { account: stickyAccount, waitMs } = accountManager.pickStickyAccount(model);
let account = stickyAccount;
// Clear any expired rate limits before picking
accountManager.clearExpiredLimits();
// Handle waiting for sticky account
if (!account && waitMs > 0) {
logger.info(`[CloudCode] Waiting ${formatDuration(waitMs)} for sticky account...`);
await sleep(waitMs);
accountManager.clearExpiredLimits();
account = accountManager.getCurrentStickyAccount(model);
}
// Get available accounts for this model
const availableAccounts = accountManager.getAvailableAccounts(model);
// Handle all accounts rate-limited
if (!account) {
// If no accounts available, check if we should wait or throw error
if (availableAccounts.length === 0) {
if (accountManager.isAllRateLimited(model)) {
const allWaitMs = accountManager.getMinWaitTimeMs(model);
const resetTime = new Date(Date.now() + allWaitMs).toISOString();
const minWaitMs = accountManager.getMinWaitTimeMs(model);
const resetTime = new Date(Date.now() + minWaitMs).toISOString();
// If wait time is too long (> 2 minutes), throw error immediately
if (allWaitMs > MAX_WAIT_BEFORE_ERROR_MS) {
if (minWaitMs > MAX_WAIT_BEFORE_ERROR_MS) {
throw new Error(
`RESOURCE_EXHAUSTED: Rate limited on ${model}. Quota will reset after ${formatDuration(allWaitMs)}. Next available: ${resetTime}`
`RESOURCE_EXHAUSTED: Rate limited on ${model}. Quota will reset after ${formatDuration(minWaitMs)}. Next available: ${resetTime}`
);
}
// Wait for reset (applies to both single and multi-account modes)
// Wait for shortest reset time
const accountCount = accountManager.getAccountCount();
logger.warn(`[CloudCode] All ${accountCount} account(s) rate-limited. Waiting ${formatDuration(allWaitMs)}...`);
await sleep(allWaitMs);
// Add small buffer after waiting to ensure rate limits have truly expired
await sleep(500);
logger.warn(`[CloudCode] All ${accountCount} account(s) rate-limited. Waiting ${formatDuration(minWaitMs)}...`);
await sleep(minWaitMs + 500); // Add 500ms buffer
accountManager.clearExpiredLimits();
account = accountManager.pickNext(model);
// If still no account after waiting, try optimistic reset
// This handles cases where the API rate limit is transient
if (!account) {
logger.warn('[CloudCode] No account available after wait, attempting optimistic reset...');
accountManager.resetAllRateLimits();
account = accountManager.pickNext(model);
}
continue; // Retry the loop
}
if (!account) {
// Check if fallback is enabled and available
if (fallbackEnabled) {
const fallbackModel = getFallbackModel(model);
if (fallbackModel) {
logger.warn(`[CloudCode] All accounts exhausted for ${model}. Attempting fallback to ${fallbackModel}`);
// Retry with fallback model
const fallbackRequest = { ...anthropicRequest, model: fallbackModel };
return await sendMessage(fallbackRequest, accountManager, false); // Disable fallback for recursive call
}
// Check if fallback is enabled and available
if (fallbackEnabled) {
const fallbackModel = getFallbackModel(model);
if (fallbackModel) {
logger.warn(`[CloudCode] All accounts exhausted for ${model}. Attempting fallback to ${fallbackModel}`);
const fallbackRequest = { ...anthropicRequest, model: fallbackModel };
return await sendMessage(fallbackRequest, accountManager, false);
}
throw new Error('No accounts available');
}
throw new Error('No accounts available');
}
// Pick sticky account (prefers current for cache continuity)
let account = accountManager.getCurrentStickyAccount(model);
if (!account) {
account = accountManager.pickNext(model);
}
if (!account) {
continue; // Shouldn't happen, but safety check
}
try {
@@ -112,6 +102,8 @@ export async function sendMessage(anthropicRequest, accountManager, fallbackEnab
// Try each endpoint
let lastError = null;
let retriedOnce = false; // Track if we've already retried for short rate limit
for (const endpoint of ANTIGRAVITY_ENDPOINT_FALLBACKS) {
try {
const url = isThinking
@@ -137,14 +129,51 @@ export async function sendMessage(anthropicRequest, accountManager, fallbackEnab
}
if (response.status === 429) {
// Rate limited on this endpoint - try next endpoint first (DAILY → PROD)
logger.debug(`[CloudCode] Rate limited at ${endpoint}, trying next endpoint...`);
const resetMs = parseResetTime(response, errorText);
// Keep minimum reset time across all 429 responses
if (!lastError?.is429 || (resetMs && (!lastError.resetMs || resetMs < lastError.resetMs))) {
lastError = { is429: true, response, errorText, resetMs };
// Decision: wait and retry OR switch account
if (resetMs && resetMs > DEFAULT_COOLDOWN_MS) {
// Long-term quota exhaustion (> 10s) - switch to next account
logger.info(`[CloudCode] Quota exhausted for ${account.email} (${formatDuration(resetMs)}), switching account...`);
accountManager.markRateLimited(account.email, resetMs, model);
throw new Error(`QUOTA_EXHAUSTED: ${errorText}`);
} else {
// Short-term rate limit (<= 10s) - wait and retry once
const waitMs = resetMs || DEFAULT_COOLDOWN_MS;
if (!retriedOnce) {
retriedOnce = true;
logger.info(`[CloudCode] Short rate limit (${formatDuration(waitMs)}), waiting and retrying...`);
await sleep(waitMs);
// Retry same endpoint
const retryResponse = await fetch(url, {
method: 'POST',
headers: buildHeaders(token, model, isThinking ? 'text/event-stream' : 'application/json'),
body: JSON.stringify(payload)
});
if (retryResponse.ok) {
// Process retry response
if (isThinking) {
return await parseThinkingSSEResponse(retryResponse, anthropicRequest.model);
}
const data = await retryResponse.json();
logger.debug('[CloudCode] Response received after retry');
return convertGoogleToAnthropic(data, anthropicRequest.model);
}
// Retry also failed - parse new reset time
const retryErrorText = await retryResponse.text();
const retryResetMs = parseResetTime(retryResponse, retryErrorText);
logger.warn(`[CloudCode] Retry also failed, marking and switching...`);
accountManager.markRateLimited(account.email, retryResetMs || waitMs, model);
throw new Error(`RATE_LIMITED_AFTER_RETRY: ${retryErrorText}`);
} else {
// Already retried once, mark and switch
accountManager.markRateLimited(account.email, waitMs, model);
throw new Error(`RATE_LIMITED: ${errorText}`);
}
}
continue;
}
if (response.status >= 400) {
@@ -179,7 +208,6 @@ export async function sendMessage(anthropicRequest, accountManager, fallbackEnab
// If all endpoints failed for this account
if (lastError) {
// If all endpoints returned 429, mark account as rate-limited
if (lastError.is429) {
logger.warn(`[CloudCode] All endpoints rate-limited for ${account.email}`);
accountManager.markRateLimited(account.email, lastError.resetMs, model);
@@ -199,18 +227,17 @@ export async function sendMessage(anthropicRequest, accountManager, fallbackEnab
logger.warn(`[CloudCode] Account ${account.email} has invalid credentials, trying next...`);
continue;
}
// Non-rate-limit error: throw immediately
// UNLESS it's a 500 error, then we treat it as a "soft" failure for this account and try the next one
// Handle 5xx errors
if (error.message.includes('API error 5') || error.message.includes('500') || error.message.includes('503')) {
logger.warn(`[CloudCode] Account ${account.email} failed with 5xx error, trying next...`);
accountManager.pickNext(model); // Force advance to next account
accountManager.pickNext(model);
continue;
}
if (isNetworkError(error)) {
logger.warn(`[CloudCode] Network error for ${account.email}, trying next account... (${error.message})`);
await sleep(1000); // Brief pause before retry
accountManager.pickNext(model); // Advance to next account
await sleep(1000);
accountManager.pickNext(model);
continue;
}
@@ -224,7 +251,7 @@ export async function sendMessage(anthropicRequest, accountManager, fallbackEnab
if (fallbackModel) {
logger.warn(`[CloudCode] All retries exhausted for ${model}. Attempting fallback to ${fallbackModel}`);
const fallbackRequest = { ...anthropicRequest, model: fallbackModel };
return await sendMessage(fallbackRequest, accountManager, false); // Disable fallback for recursive call
return await sendMessage(fallbackRequest, accountManager, false);
}
}

16
src/cloudcode/model-api.js
View File

@@ -57,22 +57,26 @@ export async function listModels(token) {
* Returns model quotas including remaining fraction and reset time
*
* @param {string} token - OAuth access token
* @param {string} [projectId] - Optional project ID for accurate quota info
* @returns {Promise<Object>} Raw response from fetchAvailableModels API
*/
export async function fetchAvailableModels(token) {
export async function fetchAvailableModels(token, projectId = null) {
const headers = {
'Authorization': `Bearer ${token}`,
'Content-Type': 'application/json',
...ANTIGRAVITY_HEADERS
};
// Include project ID in body for accurate quota info (per Quotio implementation)
const body = projectId ? { project: projectId } : {};
for (const endpoint of ANTIGRAVITY_ENDPOINT_FALLBACKS) {
try {
const url = `${endpoint}/v1internal:fetchAvailableModels`;
const response = await fetch(url, {
method: 'POST',
headers,
body: JSON.stringify({})
body: JSON.stringify(body)
});
if (!response.ok) {
@@ -95,10 +99,11 @@ export async function fetchAvailableModels(token) {
* Extracts quota info (remaining fraction and reset time) for each model
*
* @param {string} token - OAuth access token
* @param {string} [projectId] - Optional project ID for accurate quota info
* @returns {Promise<Object>} Map of modelId -> { remainingFraction, resetTime }
*/
export async function getModelQuotas(token) {
const data = await fetchAvailableModels(token);
export async function getModelQuotas(token, projectId = null) {
const data = await fetchAvailableModels(token, projectId);
if (!data || !data.models) return {};
const quotas = {};
@@ -108,7 +113,8 @@ export async function getModelQuotas(token) {
if (modelData.quotaInfo) {
quotas[modelId] = {
remainingFraction: modelData.quotaInfo.remainingFraction ?? null,
// When remainingFraction is missing but resetTime is present, quota is exhausted (0%)
remainingFraction: modelData.quotaInfo.remainingFraction ?? (modelData.quotaInfo.resetTime ? 0 : null),
resetTime: modelData.quotaInfo.resetTime ?? null
};
}

4
src/cloudcode/rate-limit-parser.js
View File

@@ -78,7 +78,7 @@ export function parseResetTime(responseOrError, errorText = '') {
// Try to extract "quotaResetDelay" first (e.g. "754.431528ms" or "1.5s")
// This is Google's preferred format for rate limit reset delay
const quotaDelayMatch = msg.match(/quotaResetDelay[:\s"]+(\\d+(?:\\.\\d+)?)(ms|s)/i);
const quotaDelayMatch = msg.match(/quotaResetDelay[:\s"]+(\d+(?:\.\d+)?)(ms|s)/i);
if (quotaDelayMatch) {
const value = parseFloat(quotaDelayMatch[1]);
const unit = quotaDelayMatch[2].toLowerCase();
@@ -103,7 +103,7 @@ export function parseResetTime(responseOrError, errorText = '') {
// Try to extract "retry-after-ms" or "retryDelay" - check seconds format first (e.g. "7739.23s")
// Added stricter regex to avoid partial matches
if (!resetMs) {
const secMatch = msg.match(/(?:retry[-_]?after[-_]?ms|retryDelay)[:\s"]+([\\d\\.]+)(?:s\b|s")/i);
const secMatch = msg.match(/(?:retry[-_]?after[-_]?ms|retryDelay)[:\s"]+([\d.]+)(?:s\b|s")/i);
if (secMatch) {
resetMs = Math.ceil(parseFloat(secMatch[1]) * 1000);
logger.debug(`[CloudCode] Parsed retry seconds from body (precise): ${resetMs}ms`);

153
src/cloudcode/streaming-handler.js
View File

@@ -9,7 +9,8 @@ import {
ANTIGRAVITY_ENDPOINT_FALLBACKS,
MAX_RETRIES,
MAX_EMPTY_RESPONSE_RETRIES,
MAX_WAIT_BEFORE_ERROR_MS
MAX_WAIT_BEFORE_ERROR_MS,
DEFAULT_COOLDOWN_MS
} from '../constants.js';
import { isRateLimitError, isAuthError, isEmptyResponseError } from '../errors.js';
import { formatDuration, sleep, isNetworkError } from '../utils/helpers.js';
@@ -38,68 +39,57 @@ export async function* sendMessageStream(anthropicRequest, accountManager, fallb
// Retry loop with account failover
// Ensure we try at least as many times as there are accounts to cycle through everyone
// +1 to ensure we hit the "all accounts rate-limited" check at the start of the next loop
const maxAttempts = Math.max(MAX_RETRIES, accountManager.getAccountCount() + 1);
for (let attempt = 0; attempt < maxAttempts; attempt++) {
// Use sticky account selection for cache continuity
const { account: stickyAccount, waitMs } = accountManager.pickStickyAccount(model);
let account = stickyAccount;
// Clear any expired rate limits before picking
accountManager.clearExpiredLimits();
// Handle waiting for sticky account
if (!account && waitMs > 0) {
logger.info(`[CloudCode] Waiting ${formatDuration(waitMs)} for sticky account...`);
await sleep(waitMs);
accountManager.clearExpiredLimits();
account = accountManager.getCurrentStickyAccount(model);
}
// Get available accounts for this model
const availableAccounts = accountManager.getAvailableAccounts(model);
// Handle all accounts rate-limited
if (!account) {
// If no accounts available, check if we should wait or throw error
if (availableAccounts.length === 0) {
if (accountManager.isAllRateLimited(model)) {
const allWaitMs = accountManager.getMinWaitTimeMs(model);
const resetTime = new Date(Date.now() + allWaitMs).toISOString();
const minWaitMs = accountManager.getMinWaitTimeMs(model);
const resetTime = new Date(Date.now() + minWaitMs).toISOString();
// If wait time is too long (> 2 minutes), throw error immediately
if (allWaitMs > MAX_WAIT_BEFORE_ERROR_MS) {
if (minWaitMs > MAX_WAIT_BEFORE_ERROR_MS) {
throw new Error(
`RESOURCE_EXHAUSTED: Rate limited on ${model}. Quota will reset after ${formatDuration(allWaitMs)}. Next available: ${resetTime}`
`RESOURCE_EXHAUSTED: Rate limited on ${model}. Quota will reset after ${formatDuration(minWaitMs)}. Next available: ${resetTime}`
);
}
// Wait for reset (applies to both single and multi-account modes)
// Wait for shortest reset time
const accountCount = accountManager.getAccountCount();
logger.warn(`[CloudCode] All ${accountCount} account(s) rate-limited. Waiting ${formatDuration(allWaitMs)}...`);
await sleep(allWaitMs);
// Add small buffer after waiting to ensure rate limits have truly expired
await sleep(500);
logger.warn(`[CloudCode] All ${accountCount} account(s) rate-limited. Waiting ${formatDuration(minWaitMs)}...`);
await sleep(minWaitMs + 500); // Add 500ms buffer
accountManager.clearExpiredLimits();
account = accountManager.pickNext(model);
// If still no account after waiting, try optimistic reset
// This handles cases where the API rate limit is transient
if (!account) {
logger.warn('[CloudCode] No account available after wait, attempting optimistic reset...');
accountManager.resetAllRateLimits();
account = accountManager.pickNext(model);
}
continue; // Retry the loop
}
if (!account) {
// Check if fallback is enabled and available
if (fallbackEnabled) {
const fallbackModel = getFallbackModel(model);
if (fallbackModel) {
logger.warn(`[CloudCode] All accounts exhausted for ${model}. Attempting fallback to ${fallbackModel} (streaming)`);
// Retry with fallback model
const fallbackRequest = { ...anthropicRequest, model: fallbackModel };
yield* sendMessageStream(fallbackRequest, accountManager, false); // Disable fallback for recursive call
return;
}
// Check if fallback is enabled and available
if (fallbackEnabled) {
const fallbackModel = getFallbackModel(model);
if (fallbackModel) {
logger.warn(`[CloudCode] All accounts exhausted for ${model}. Attempting fallback to ${fallbackModel} (streaming)`);
const fallbackRequest = { ...anthropicRequest, model: fallbackModel };
yield* sendMessageStream(fallbackRequest, accountManager, false);
return;
}
throw new Error('No accounts available');
}
throw new Error('No accounts available');
}
// Pick sticky account (prefers current for cache continuity)
let account = accountManager.getCurrentStickyAccount(model);
if (!account) {
account = accountManager.pickNext(model);
}
if (!account) {
continue; // Shouldn't happen, but safety check
}
try {
@@ -112,6 +102,8 @@ export async function* sendMessageStream(anthropicRequest, accountManager, fallb
// Try each endpoint for streaming
let lastError = null;
let retriedOnce = false; // Track if we've already retried for short rate limit
for (const endpoint of ANTIGRAVITY_ENDPOINT_FALLBACKS) {
try {
const url = `${endpoint}/v1internal:streamGenerateContent?alt=sse`;
@@ -134,14 +126,48 @@ export async function* sendMessageStream(anthropicRequest, accountManager, fallb
}
if (response.status === 429) {
// Rate limited on this endpoint - try next endpoint first (DAILY → PROD)
logger.debug(`[CloudCode] Stream rate limited at ${endpoint}, trying next endpoint...`);
const resetMs = parseResetTime(response, errorText);
// Keep minimum reset time across all 429 responses
if (!lastError?.is429 || (resetMs && (!lastError.resetMs || resetMs < lastError.resetMs))) {
lastError = { is429: true, response, errorText, resetMs };
// Decision: wait and retry OR switch account
if (resetMs && resetMs > DEFAULT_COOLDOWN_MS) {
// Long-term quota exhaustion (> 10s) - switch to next account
logger.info(`[CloudCode] Quota exhausted for ${account.email} (${formatDuration(resetMs)}), switching account...`);
accountManager.markRateLimited(account.email, resetMs, model);
throw new Error(`QUOTA_EXHAUSTED: ${errorText}`);
} else {
// Short-term rate limit (<= 10s) - wait and retry once
const waitMs = resetMs || DEFAULT_COOLDOWN_MS;
if (!retriedOnce) {
retriedOnce = true;
logger.info(`[CloudCode] Short rate limit (${formatDuration(waitMs)}), waiting and retrying...`);
await sleep(waitMs);
// Retry same endpoint
const retryResponse = await fetch(url, {
method: 'POST',
headers: buildHeaders(token, model, 'text/event-stream'),
body: JSON.stringify(payload)
});
if (retryResponse.ok) {
// Stream the retry response
yield* streamSSEResponse(retryResponse, anthropicRequest.model);
logger.debug('[CloudCode] Stream completed after retry');
return;
}
// Retry also failed - parse new reset time
const retryErrorText = await retryResponse.text();
const retryResetMs = parseResetTime(retryResponse, retryErrorText);
logger.warn(`[CloudCode] Retry also failed, marking and switching...`);
accountManager.markRateLimited(account.email, retryResetMs || waitMs, model);
throw new Error(`RATE_LIMITED_AFTER_RETRY: ${retryErrorText}`);
} else {
// Already retried once, mark and switch
accountManager.markRateLimited(account.email, waitMs, model);
throw new Error(`RATE_LIMITED: ${errorText}`);
}
}
continue;
}
lastError = new Error(`API error ${response.status}: ${errorText}`);
@@ -156,7 +182,6 @@ export async function* sendMessageStream(anthropicRequest, accountManager, fallb
}
// Stream the response with retry logic for empty responses
// Uses a for-loop for clearer retry semantics
let currentResponse = response;
for (let emptyRetries = 0; emptyRetries <= MAX_EMPTY_RESPONSE_RETRIES; emptyRetries++) {
@@ -207,28 +232,22 @@ export async function* sendMessageStream(anthropicRequest, accountManager, fallb
throw new Error(`401 AUTH_INVALID during retry: ${retryErrorText}`);
}
// For 5xx errors, don't pass to streamer - just continue to next retry
// For 5xx errors, continue retrying
if (currentResponse.status >= 500) {
logger.warn(`[CloudCode] Retry got ${currentResponse.status}, will retry...`);
// Don't continue here - let the loop increment and refetch
// Set currentResponse to null to force refetch at loop start
emptyRetries--; // Compensate for loop increment since we didn't actually try
await sleep(1000);
// Refetch immediately for 5xx
currentResponse = await fetch(url, {
method: 'POST',
headers: buildHeaders(token, model, 'text/event-stream'),
body: JSON.stringify(payload)
});
if (currentResponse.ok) {
continue; // Try streaming with new response
continue;
}
// If still failing, let it fall through to throw
}
throw new Error(`Empty response retry failed: ${currentResponse.status} - ${retryErrorText}`);
}
// Response is OK, loop will continue to try streamSSEResponse
}
}
@@ -237,7 +256,7 @@ export async function* sendMessageStream(anthropicRequest, accountManager, fallb
throw endpointError; // Re-throw to trigger account switch
}
if (isEmptyResponseError(endpointError)) {
throw endpointError; // Re-throw empty response errors to outer handler
throw endpointError;
}
logger.warn(`[CloudCode] Stream error at ${endpoint}:`, endpointError.message);
lastError = endpointError;
@@ -246,7 +265,6 @@ export async function* sendMessageStream(anthropicRequest, accountManager, fallb
// If all endpoints failed for this account
if (lastError) {
// If all endpoints returned 429, mark account as rate-limited
if (lastError.is429) {
logger.warn(`[CloudCode] All endpoints rate-limited for ${account.email}`);
accountManager.markRateLimited(account.email, lastError.resetMs, model);
@@ -266,18 +284,17 @@ export async function* sendMessageStream(anthropicRequest, accountManager, fallb
logger.warn(`[CloudCode] Account ${account.email} has invalid credentials, trying next...`);
continue;
}
// Non-rate-limit error: throw immediately
// UNLESS it's a 500 error, then we treat it as a "soft" failure for this account and try the next one
// Handle 5xx errors
if (error.message.includes('API error 5') || error.message.includes('500') || error.message.includes('503')) {
logger.warn(`[CloudCode] Account ${account.email} failed with 5xx stream error, trying next...`);
accountManager.pickNext(model); // Force advance to next account
accountManager.pickNext(model);
continue;
}
if (isNetworkError(error)) {
logger.warn(`[CloudCode] Network error for ${account.email} (stream), trying next account... (${error.message})`);
await sleep(1000); // Brief pause before retry
accountManager.pickNext(model); // Advance to next account
await sleep(1000);
accountManager.pickNext(model);
continue;
}
@@ -291,7 +308,7 @@ export async function* sendMessageStream(anthropicRequest, accountManager, fallb
if (fallbackModel) {
logger.warn(`[CloudCode] All retries exhausted for ${model}. Attempting fallback to ${fallbackModel} (streaming)`);
const fallbackRequest = { ...anthropicRequest, model: fallbackModel };
yield* sendMessageStream(fallbackRequest, accountManager, false); // Disable fallback for recursive call
yield* sendMessageStream(fallbackRequest, accountManager, false);
return;
}
}