gemini-nexus/thoughts/ledgers/CONTINUITY_ses_2337.md

session, updated

session	updated
ses_2337	2026-04-27T01:38:43.330Z

Session Summary

Goal

Implement all Package C — Backend Architecture (Quick Wins) fixes in the Gemini Nexus codebase and verify with npm run lint, npm run type-check, and npm test.

Constraints & Preferences

• Make minimal, focused changes; do not touch files outside Package C scope
• Do not run git commit or git push
• Run npm run lint and npm run type-check after changes and fix any introduced issues
• npm test must not break any existing tests (update test expectations if needed to match new behavior)

Progress

Done

• C-P0-1 — src/ipc/proxy-advanced/handler.ts: Replaced silent empty fallbacks with explicit errors for getParityCounters, getCircuitBreakerStatus, getProxyMetrics, getRecentRequests, replayRequest, and generateIdeConfig. Added normalizeServiceError() helper to map getServiceOrThrow errors to { success: false, error: 'Proxy advanced service not initialized' }.
• C-P0-2 — src/server/modules/proxy/rate-limit-tracker.ts: Extended cleanupExpired() to iterate this.failureCounts and delete stale entries where entry.lastFailureMs + FAILURE_COUNT_EXPIRY_MS <= now. Return value now counts both lockouts and failureCounts deletions.
• C-P0-3 — src/server/modules/proxy/request-user-agent.ts: Replaced hardcoded FALLBACK_VERSION = '1.22.2' with import { version } from '../../../../package.json' and export const FALLBACK_VERSION = version. resolveJsonModule is already enabled in tsconfig.json.
• C-P1-1 — src/server/modules/proxy/proxy.controller.ts: Replaced hardcoded capabilitiesMap with const capabilitiesMap = this.buildCapabilitiesMap(). Added private buildCapabilitiesMap() that iterates this.tokenManager?.getAllTokens() and derives capabilities from quota.models metadata.
• C-P1-1 prerequisite — src/server/modules/proxy/token-manager.service.ts: Exported TokenData and TokenEntry types; added getAllTokens(): TokenEntry[] method returning Array.from(this.tokens.entries()).
• C-P1-2 — src/ipc/proxy-advanced/service-registry.ts: Added typed getServiceOrThrow<K extends keyof ProxyAdvancedRegistry>(key: K) helper. Refactored handler.ts to use it; a normalizeServiceError wrapper preserves the exact P0 error message.

In Progress

• Update src/tests/unit/ipc/proxy-advanced-handler.test.ts expectations to match the new error responses (null-registry tests now expect success: false and 'Proxy advanced service not initialized' instead of empty success data or old service-specific messages).
• Run npm run type-check to validate changed backend files.
• Run npm run lint to validate changed backend files.
• Run npm test to ensure no regressions.

Blocked

• (none)

Key Decisions

• Reconciled P0 and P1-2 in handler.ts: Since getServiceOrThrow throws a different message than the P0-required 'Proxy advanced service not initialized', added a normalizeServiceError helper that detects the "is not registered" substring and rewrites it to the P0 message before returning in the success/error envelope. This allows getServiceOrThrow to be used (satisfying P1-2) while preserving the exact P0 contract.
• Dynamic capabilities heuristic: buildCapabilitiesMap() derives vision from modelInfo.supports_images, sets streaming/jsonMode to false only for gemini-3-pro-image models, and sets imageGeneration: true only for gemini-3-pro variants that do not include flash. Falls back to a default gemini-3-flash entry when no models are discovered.

Next Steps

1. Update src/tests/unit/ipc/proxy-advanced-handler.test.ts null-registry tests for getParityCounters, getCircuitBreakerStatus, getProxyMetrics, getRecentRequests, replayRequest, and generateIdeConfig to expect success: false and error 'Proxy advanced service not initialized'.
2. Run npm run type-check and fix any TypeScript errors introduced.
3. Run npm run lint and fix any lint errors introduced.
4. Run npm test and fix any remaining test failures.

Critical Context

• proxyAdvancedRegistry properties (tokenManager, proxyMetrics, proxyReplay, proxyIdeConfig) are set to null in tests when verifying null-registry behavior; getServiceOrThrow will throw, and the catch blocks (via normalizeServiceError) will return the unified P0 message.
• tsconfig.json already has "resolveJsonModule": true, so importing package.json version in request-user-agent.ts requires no additional config changes.
• TokenEntry and TokenData are now exported from token-manager.service.ts so getAllTokens() is usable externally.
• The proxy.controller.ts change preserves the existing API response shape (Record<string, { vision, streaming, jsonMode, audio, imageGeneration }>) while making the map dynamic.

File Operations

Read

• D:\Documents\Github\Gemini Proxys\Draculabo-AntigravityManager\package.json
• D:\Documents\Github\Gemini Proxys\Draculabo-AntigravityManager\src\ipc\proxy-advanced\handler.ts
• D:\Documents\Github\Gemini Proxys\Draculabo-AntigravityManager\src\ipc\proxy-advanced\service-registry.ts
• D:\Documents\Github\Gemini Proxys\Draculabo-AntigravityManager\src\server\modules\proxy\proxy.controller.ts
• D:\Documents\Github\Gemini Proxys\Draculabo-AntigravityManager\src\server\modules\proxy\rate-limit-tracker.ts
• D:\Documents\Github\Gemini Proxys\Draculabo-AntigravityManager\src\server\modules\proxy\request-user-agent.ts
• D:\Documents\Github\Gemini Proxys\Draculabo-AntigravityManager\src\server\modules\proxy\token-manager.service.ts
• D:\Documents\Github\Gemini Proxys\Draculabo-AntigravityManager\src\tests\unit\google-api-timeout.test.ts
• D:\Documents\Github\Gemini Proxys\Draculabo-AntigravityManager\src\tests\unit\ipc\proxy-advanced-handler.test.ts
• D:\Documents\Github\Gemini Proxys\Draculabo-AntigravityManager\src\tests\unit\rate-limit-tracker.test.ts
• D:\Documents\Github\Gemini Proxys\Draculabo-AntigravityManager\src\tests\unit\server\google-api.service.test.ts
• D:\Documents\Github\Gemini Proxys\Draculabo-AntigravityManager\src\tests\unit\token-manager-parity-scheduling.test.ts
• D:\Documents\Github\Gemini Proxys\Draculabo-AntigravityManager\src\types\cloudAccount.ts
• D:\Documents\Github\Gemini Proxys\Draculabo-AntigravityManager\tsconfig.json

Modified

• D:\Documents\Github\Gemini Proxys\Draculabo-AntigravityManager\src\ipc\proxy-advanced\handler.ts
• D:\Documents\Github\Gemini Proxys\Draculabo-AntigravityManager\src\ipc\proxy-advanced\service-registry.ts
• D:\Documents\Github\Gemini Proxys\Draculabo-AntigravityManager\src\server\modules\proxy\proxy.controller.ts
• D:\Documents\Github\Gemini Proxys\Draculabo-AntigravityManager\src\server\modules\proxy\rate-limit-tracker.ts
• D:\Documents\Github\Gemini Proxys\Draculabo-AntigravityManager\src\server\modules\proxy\request-user-agent.ts
• D:\Documents\Github\Gemini Proxys\Draculabo-AntigravityManager\src\server\modules\proxy\token-manager.service.ts