Eric Tech Circle
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Eric Tech Circle

Backend team lead & architect with 10+ years experience, full‑stack engineer, sharing insights and solo development practice.

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Latest from Eric Tech Circle

93 recent articles
Eric Tech Circle
Eric Tech Circle
Oct 19, 2026 · Artificial Intelligence

Grok Bot Hands-On Guide: From Setup to Your First AI Assistant

The author shares why they switched from Hermes to Grok Bot as a personal AI assistant, detailing the setup process including download, configuring the Chief of Staff bot, authorizing local computer access with security rules, and connecting GitHub repositories for file access.

AI assistantAI productivityGitHub integration
0 likes · 8 min read
Grok Bot Hands-On Guide: From Setup to Your First AI Assistant
Eric Tech Circle
Eric Tech Circle
Oct 12, 2026 · Artificial Intelligence

Four AI Coding Agents Compared: Open Source Wins After Privacy Scandals

After closed-source tools Grok Build and ZCode were caught uploading user code without consent, the author evaluates four open-source AI coding agents—Codex CLI, Pi Agent, OpenCode, and DeepSeek Harness—comparing their licensing, model flexibility, token costs, speed, and fit for different developer workflows.

AI Coding AgentsCodex CLIDeepSeek Harness
0 likes · 13 min read
Four AI Coding Agents Compared: Open Source Wins After Privacy Scandals
Eric Tech Circle
Eric Tech Circle
Sep 7, 2026 · Artificial Intelligence

Pi Agent Compression & Handoff Skill: Cross-Session Context Management

This article analyzes Pi Agent's built-in context compression mechanism—detailing its trigger, cutoff, structured summary fields, and relay design—and introduces a custom Handoff skill that replicates the summary structure to create persistent checkpoints for seamless cross-session and cross-agent task handoff, enabling continuous long-running agent workflows.

AI AgentCheckpointHandoff skill
0 likes · 10 min read
Pi Agent Compression & Handoff Skill: Cross-Session Context Management
Eric Tech Circle
Eric Tech Circle
Aug 24, 2026 · Artificial Intelligence

Pi Agent: Minimal AI Harness for Model-Agnostic Coding with Token Control

This hands-on guide explores Pi Agent's minimal four-layer architecture, installation, essential extensions for web search and permissions, a practical permission blacklist configuration, and why its decoupled design outperforms heavier coding agents like Claude Code and Codex for token efficiency and workflow control.

AI coding agentAI workflowPi Agent
0 likes · 11 min read
Pi Agent: Minimal AI Harness for Model-Agnostic Coding with Token Control
Eric Tech Circle
Eric Tech Circle
Aug 17, 2026 · Backend Development

WeChat Mini Program Virtual Payment Integration: Lessons Learned and Common Pitfalls

This article walks through switching a Mini Program’s membership, subscription, and virtual‑goods purchases to WeChat’s virtual payment system, detailing the differences from V3 payment, the three‑stage flow (initiation, confirmation, refund), and dozens of concrete pitfalls such as order‑ID reuse, push reliability, iOS refund limits, sandbox charging, and configuration latency.

Payment IntegrationSandbox TestingVirtual Payment
0 likes · 11 min read
WeChat Mini Program Virtual Payment Integration: Lessons Learned and Common Pitfalls
Eric Tech Circle
Eric Tech Circle
Aug 10, 2026 · Artificial Intelligence

Aligning Agent Workflows with the Grill Me Skill: Design, Mechanism, and Real‑World Demo

This article introduces the lightweight Grill Me skill for AI agents, explains how its batch‑questioning and recommendation‑based alignment process reduces rework, provides installation commands, and showcases a step‑by‑step demonstration on the Codex CLI, highlighting decision summaries and quick‑exit options.

AI AgentsCodex CLIautomation
0 likes · 5 min read
Aligning Agent Workflows with the Grill Me Skill: Design, Mechanism, and Real‑World Demo
Eric Tech Circle
Eric Tech Circle
Aug 3, 2026 · Artificial Intelligence

Native Integration of DeepSeek V4 Flash into Codex

The article explains how to directly integrate the newly released DeepSeek V4 Flash model—supporting the Responses API and offering 1 M context length—into Codex without proxy tools, provides step‑by‑step configuration files, shows cost and token‑usage tables, and compares it with OpenCode usage.

AICodexConfiguration
0 likes · 6 min read
Native Integration of DeepSeek V4 Flash into Codex
Eric Tech Circle
Eric Tech Circle
Jul 10, 2026 · Artificial Intelligence

GPT‑5.6 Launch: Three Model Tiers, New ChatGPT & Codex Features, and How to Choose

OpenAI’s GPT‑5.6 release introduces three tiered models—Sol, Terra, and Luna—each with distinct pricing and performance trade‑offs, integrates ChatGPT Work and Codex into a unified platform, and provides detailed guidance on selecting the right tier for architecture, daily development, batch tasks, or large‑scale autonomous projects.

AI AgentsChatGPT WorkCodex
0 likes · 16 min read
GPT‑5.6 Launch: Three Model Tiers, New ChatGPT & Codex Features, and How to Choose
Eric Tech Circle
Eric Tech Circle
Jun 16, 2026 · Mobile Development

80+ Mini Program Review Lessons: Common Pitfalls and How to Fix Them

After more than 80 WeChat Mini Program submissions, this guide compiles the most frequent review rejections—privacy agreement gaps, content‑security failures, forced login, brand misuse, and missing test accounts—and provides concrete checklists and step‑by‑step solutions to help developers pass audits quickly and reliably.

WeChat Mini Programcontent securityguest mode
0 likes · 9 min read
80+ Mini Program Review Lessons: Common Pitfalls and How to Fix Them