--- title: "xbstack (@xbstack) | Hashnode" description: "Full-stack developer and independent builder behind XBSTACK. I write about AI engineering, AI agents, MCP, LangGraph, workflow automation, d" url: "https://hashnode.com/@xbstack" --- @xbstack # xbstack @xbstack · Joined July 2026 Full-stack developer and independent builder behind XBSTACK. I write about AI engineering, AI agents, MCP, LangGraph, workflow automation, d ### [Codex CLI Can Hide response.failed Behind idle timeout waiting for SSE](https://xbstack.hashnode.dev/codex-cli-can-hide-response-failed-behind-idle-timeout-waiting-for-sse?utm_source=hashnode&utm_medium=feed) Independent Codex CLI 0.153.4/0.154.0 repro showing how terminal response.failed can be hidden by idle timeout waiting for SSE when the socket stays open. 7 min read · [xbstack.hashnode.dev](https://xbstack.hashnode.dev/codex-cli-can-hide-response-failed-behind-idle-timeout-waiting-for-sse?utm_source=hashnode&utm_medium=feed) [Sep 12](https://hashnode.com/posts/codex-cli-can-hide-response-failed-behind-idle-timeout-waiting-for-sse/6aa55ae4fc546d356aa98feb) ### [From Tokens to Verified Outcomes: A Practical AI Agent Pricing Model](https://xbstack.hashnode.dev/from-tokens-to-verified-outcomes-a-practical-ai-agent-pricing-model?utm_source=hashnode&utm_medium=feed) OpenAI is testing outcome-based pricing. See how AI agent economics move from token cost to verified outcomes, business value, ROI, and model routing. 15 min read · [xbstack.hashnode.dev](https://xbstack.hashnode.dev/from-tokens-to-verified-outcomes-a-practical-ai-agent-pricing-model?utm_source=hashnode&utm_medium=feed) [1](https://hashnode.com/posts/from-tokens-to-verified-outcomes-a-practical-ai-agent-pricing-model/6aa242cbdef75d7c84724b4a) [Sep 10](https://hashnode.com/posts/from-tokens-to-verified-outcomes-a-practical-ai-agent-pricing-model/6aa242cbdef75d7c84724b4a) ### [ChatGPT Chat vs Work: What’s the Difference? When to Use Codex](https://xbstack.hashnode.dev/chatgpt-chat-vs-work-what-s-the-difference-when-to-use-codex?utm_source=hashnode&utm_medium=feed) A production-focused update based on a real project: ChatGPT Work vs Codex: compare Chat, Work, and Codex by task boundary, then check the latest Cloud Work, Local Chat, Mobile Re… Chinese edition: 18 min read · [xbstack.hashnode.dev](https://xbstack.hashnode.dev/chatgpt-chat-vs-work-what-s-the-difference-when-to-use-codex?utm_source=hashnode&utm_medium=feed) [Sep 10](https://hashnode.com/posts/chatgpt-chat-vs-work-what-s-the-difference-when-to-use-codex/6aa2400730f364644c379151) ### [Funes Agent Memory Tested: Codex Recall, Stale Memory, and Local Privacy Boundaries](https://xbstack.hashnode.dev/funes-agent-memory-tested-codex-recall-stale-memory-and-local-privacy-boundaries?utm_source=hashnode&utm_medium=feed) A reproducible local benchmark of Funes 1.3.0+dev on real Codex session traces, including recall accuracy, latency, irrelevant-query behavior, stale-memory conflicts, and privacy boundaries. 15 min read · [xbstack.hashnode.dev](https://xbstack.hashnode.dev/funes-agent-memory-tested-codex-recall-stale-memory-and-local-privacy-boundaries?utm_source=hashnode&utm_medium=feed) [Sep 9](https://hashnode.com/posts/funes-agent-memory-tested-codex-recall-stale-memory-and-local-privacy-boundaries/6aa12e5408bec00ec4a80610) ### [When a LangGraph Checkpoint Preserves the Instant but Loses the Timezone](https://xbstack.hashnode.dev/when-a-langgraph-checkpoint-preserves-the-instant-but-loses-the-timezone?utm_source=hashnode&utm_medium=feed) Reproduce LangGraph ZoneInfo and fold loss after checkpoint restore, the one-hour DST shift, and a timezone-safe containment pattern. 2 min read · [xbstack.hashnode.dev](https://xbstack.hashnode.dev/when-a-langgraph-checkpoint-preserves-the-instant-but-loses-the-timezone?utm_source=hashnode&utm_medium=feed) [Sep 7](https://hashnode.com/posts/when-a-langgraph-checkpoint-preserves-the-instant-but-loses-the-timezone/6a9e5383b63eda1da2dade2c)