Claude Code long session stuck at dimension limit? Bug caused by accumulated screenshots bursting the API, and a rescue solution set.

How to Rescue Claude Code Sessions Stuck on Image Dimension Limits Recently I hit a confusing error in Claude Code: An image in the conversation exceeds the dimension limit for many-image requests (2000px). Start a new session with fewer images. The screenshot I’d just pasted was completely normal—just 100×200 pixels. By intuition, this should mean “the last image is oversized,” but it wasn’t. This is a cumulative bug with counterintuitive trigger conditions, root causes, and fixes. Once you hit it, you keep hitting it. This post explains the rules, the mechanics, and ready-to-use tooling to fix it. ...

2026-04-19 · 7 min · 1362 words · Panshi

OpenClaw Advanced: Multi-Agent Collaboration, Quantitative Workflow, Custom Skill

This is the follow-up to the OpenClaw Getting Started Guide, assuming you’ve already installed OpenClaw and gotten basic Telegram interactions working. This covers the advanced techniques you’ll want once you’re actually using it in production. Multi-Agent Task Division OpenClaw lets you configure multiple Agents in the same Telegram group, each handling a different domain. This is probably the most underrated feature. ...

2026-04-15 · 5 min · 1011 words · Panshi

Google One AI Premium Getting Started Guide: Gemini Advanced + 2TB Cloud Storage + NotebookLM Plus

Google One AI Premium is Google’s bundled AI subscription at $19.99/month. It packages three main offerings: Gemini Advanced: Google’s most powerful AI model (Gemini 1.5 Pro/Ultra tier), with unlimited usage 2TB Google Cloud Storage: Covers Google Drive, Gmail, and Google Photos NotebookLM Plus: Google’s AI note-taking and knowledge base tool, Plus version with no usage limits If you already need high-capacity Google cloud storage, the AI features are essentially a free add-on. ...

2026-04-15 · 4 min · 673 words · Panshi

Complete Tutorial on OpenAI Codex CLI: Installation, Authentication, and First Code Operations

OpenAI released Codex CLI in early 2025—a tool that lets you write code, edit files, and run commands directly in your terminal using AI. Unlike ChatGPT on the web, Codex CLI’s core strength is directly manipulating your local filesystem, so AI actually gets work done instead of just handing you snippets to paste. This guide covers the complete setup from installation to your first task, taking about 10 minutes. ...

2026-04-15 · 4 min · 834 words · Panshi

Claude Code dual-channel switching guide: official channel vs Copilot Pro+ cost-saving option

Claude Code got a quiet but important update in 2025: you can now plug in GitHub Copilot Pro+ as a backend. This means you can run Claude Code on a $19/month Copilot Pro+ subscription instead of paying separately for $20/month Claude Pro. But the two channels have stark differences—if you don’t understand them, you’ll hit gotchas. This article breaks down the key distinctions, plus the alias setup I’m using to make switching a one-command operation. ...

2026-04-15 · 4 min · 806 words · Panshi

Is Copilot Pro+ Worth Buying: Real ROI Analysis After 3 Months of Use

I’m currently paying $80/month to subscribe to two GitHub Copilot Pro+ accounts. That number seems steep at first, but after three months of use, I believe it’s the best ROI among all my AI subscriptions. This article breaks down the math so you can judge for yourself whether it’s worth it. What is Copilot Pro+? GitHub Copilot has three tiers: Tier Monthly cost Key difference Copilot Free Free Basic completions, 2000 completions/month Copilot Pro $10 Unlimited completions, GPT-4o model Copilot Pro+ $19 Unlimited completions + advanced model quota The key differences in Pro+: ...

2026-04-10 · 4 min · 704 words · Panshi

Claude Sonnet vs Opus: How to choose a model without wasting money

Anthropic’s current flagship models are Opus 4.6 (most powerful), Sonnet 4.6 (balanced), and Haiku 4.5 (fastest and cheapest). Many people use Claude for everything with Opus, resulting in API bills 3–5× higher. This article explains from a practical usage perspective: when to use Opus, when to use Sonnet, and when Haiku is worth considering. Pricing Comparison (April 2026) Model Input Price Output Price Relative Cost claude-haiku-4-5 $0.80/M tokens $4/M tokens 1× claude-sonnet-4-6 $3/M tokens $15/M tokens ~4× claude-opus-4-6 $15/M tokens $75/M tokens ~19× Opus costs nearly 20× more than Haiku. For the same task, using Opus when Sonnet can handle it is pure waste. ...

2026-04-10 · 4 min · 743 words · Panshi

OpenClaw + GitHub Copilot + Claude Opus 4.6 parameter tuning log

Running OpenClaw with default config will hit two problems after a while: quota burns too fast and long sessions crash from timeouts. This post logs 8 parameters I actually tuned, and the reasoning behind each. Architecture First Here’s my setup: GitHub Copilot Pro+: $19/month, 1500 premium requests/month quota Claude Opus 4.6: accessed via Copilot’s model routing, model ID github-copilot/claude-opus-4.6 OpenClaw: handles Telegram interactions, Skill calls, scheduled tasks Quota math: each AI assistant reply = 1 premium request (including replies after tool calls). 1500 sounds like plenty, but without optimization it dries up fast. ...

2026-04-08 · 5 min · 940 words · Panshi

Writing quantitative strategies with Claude: The complete process from zero to signal delivery

Writing Quant Strategies with Claude Building quant strategies has a high barrier to entry: you need to understand trading logic and write code. Claude cuts that barrier in half — you just need to know the trading logic, and it handles the code part. This article documents my process of building a complete quantitative signal system from scratch with Claude. ...

2026-04-08 · 4 min · 677 words · Panshi

What is OpenClaw: An integrated platform of AI assistants + toolchain

OpenClaw Intro & Setup If you’ve used Claude Code, you can think of OpenClaw as its “async version”—Claude Code is great when you’re sitting at your computer working interactively, while OpenClaw is designed to let AI help you continuously in the background, even when you’re away from your desk. What OpenClaw Is Actually For One sentence: Give your AI assistant the ability to access and operate external tools, and interact with you through Telegram and other channels. ...

2026-04-07 · 4 min · 663 words · Panshi

Claude API cost-saving guide: controlling usage from hundreds down to tens of dollars per month

Claude API costs can easily spiral out of control—stronger models cost more per call, and longer context costs more. This post shares my approach to cost control. Claude Model Pricing Comparison (2026) Model Input $/MTok Output $/MTok Use case claude-opus-4-6 $15 $75 Complex reasoning, code generation claude-sonnet-4-6 $3 $15 General tasks, writing claude-haiku-4-5 $0.8 $4 Simple classification, summarization MTok = million tokens. 1 token ≈ 0.75 English words ≈ 0.5 Chinese characters. ...

2026-04-05 · 3 min · 587 words · Panshi

Claude Code in Real Use: How I Manage 9 Servers with AI

I’ve been using Claude Code—Anthropic’s CLI tool—to manage my fleet of servers since last year, and it’s genuinely changed how I work with infrastructure. This is what AI should be doing: not chatting, but actually getting things done. My setup 9 overseas VPS instances (AWS / DMIT / Tencent Cloud), distributed across the US, Hong Kong, Japan, and Singapore, running: Proxy nodes (Xray + Hysteria2) Quantitative trading strategies Monitoring stack (Prometheus + Grafana) Various automation scripts I used to SSH into each machine manually. Now I just tell Claude Code “update the Xray config on the Japan machine,” and it handles the SSH connection, modifies the config, restarts the service, and verifies it’s working. ...

2026-04-05 · 4 min · 689 words · Panshi