@xbstack

xbstack

@xbstackJoined July 2026

Full-stack developer and independent builder behind XBSTACK. I write about AI engineering, AI agents, MCP, LangGraph, workflow automation, d

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XBSTACKxbstack.hashnode.dev30 posts

Codex CLI Can Hide response.failed Behind idle timeout waiting for SSE

Why Codex CLI Turns response.failed Into idle timeout waiting for SSE If Codex CLI ends with: stream disconnected before completion: idle timeout waiting for SSE do not automatically conclude that th

Sep 12 · 7 min readxbstack.hashnode.dev

From Tokens to Verified Outcomes: A Practical AI Agent Pricing Model

Token pricing is still useful for infrastructure accounting. It is just too low-level to explain what a customer should pay for an agent that is expected to complete a business outcome. OpenAI Outcom

1Sep 10 · 15 min readxbstack.hashnode.dev

ChatGPT Chat vs Work: What’s the Difference? When to Use Codex

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:

Sep 10 · 18 min readxbstack.hashnode.dev

Funes Agent Memory Tested: Codex Recall, Stale Memory, and Local Privacy Boundaries

Short answer: Funes is interesting because it does not try to make Claude Code or Codex “remember everything” by adding a larger prompt. It turns the session traces those agents already produced into

Sep 9 · 15 min readxbstack.hashnode.dev

When a LangGraph Checkpoint Preserves the Instant but Loses the Timezone

LangGraph checkpointing can look correct at the storage layer while silently changing the meaning of a timezone-aware datetime. I isolated the behavior at the serializer boundary so database, graph to

Sep 7 · 2 min readxbstack.hashnode.dev

xbstack

About

Available for

xbstack's blogs

Codex CLI Can Hide response.failed Behind idle timeout waiting for SSE

From Tokens to Verified Outcomes: A Practical AI Agent Pricing Model

ChatGPT Chat vs Work: What’s the Difference? When to Use Codex

Funes Agent Memory Tested: Codex Recall, Stale Memory, and Local Privacy Boundaries

When a LangGraph Checkpoint Preserves the Instant but Loses the Timezone

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xbstack

About

Available for

xbstack's blogs

Codex CLI Can Hide response.failed Behind idle timeout waiting for SSE

From Tokens to Verified Outcomes: A Practical AI Agent Pricing Model

ChatGPT Chat vs Work: What’s the Difference? When to Use Codex

Funes Agent Memory Tested: Codex Recall, Stale Memory, and Local Privacy Boundaries

When a LangGraph Checkpoint Preserves the Instant but Loses the Timezone