Zukko Blog
Guides to Claude Code, Cursor, Codex and the Claude and GPT APIs: setup, token savings and troubleshooting.
JetBrains AI Assistant not working: causes and workarounds
6 min · · IDE
AI Assistant will not activate, stays silent or is off for some files. We go through the causes in the JetBrains docs and connect your own models via a gateway.
DeepSeek in VS Code: connecting through Cline, Kilo Code and Continue
5 min · · IDE
We connect DeepSeek to Cline, Kilo Code and Continue with a single key, choose between Flash and Pro, and estimate the cost of a working day with an agent in the editor.
GitHub Copilot alternatives with your own API key: what to choose
5 min · · IDE
Cline, Kilo Code, Continue and Cursor work with your own key. We compare where they live, how they connect to a gateway and how to estimate spend.
Invalid API key in opencode: why the key is rejected and how to check
5 min · · errors
The Invalid API key error in opencode almost always comes down to four causes. We test the key outside opencode and find where the chain breaks.
Claude Code in Zed: connecting an external agent to your own key
6 min · · IDE
In Zed you can open Claude Code as a terminal thread, as an external agent over ACP, or configure the built-in agent. We cover each option and connect it to your key.
Claude Code with Qwen, GLM and DeepSeek models through one key
7 min · · IDE
Claude Code is not tied to Claude: the model is set by a variable. A configuration for Qwen, GLM and DeepSeek, a session calculated, and how to keep Opus for the hard parts.
Claude Code for 1C: setting up an agent to work with a configuration
5 min · · IDE
The agent edits BSL text modules, not the infobase. How to dump a configuration, what goes into CLAUDE.md, how to check edits and what it costs.
How much Cline costs: the extension is free, you pay for tokens — a calculation
6 min · · экономия
With your own key Cline sells no model subscription: you pay for tokens. A workday on several models, calculated, and how to stay within budget.
Zed AI vs Cursor: a fast editor against an AI fork of VS Code
6 min · · IDE
Zed and Cursor approach AI differently: one builds around its own editor and the ACP protocol, the other extends VS Code. We compare them and connect your own key.
JetBrains AI vs Cursor: what a developer on IntelliJ and PyCharm should pick
6 min · · IDE
Stay in a JetBrains IDE with AI Assistant or move to Cursor? We compare features, own-model support and costs, with step-by-step settings.
A neural network for Lua and Roblox: writing Luau scripts with AI
6 min · · development
Without guidance a model may confuse Lua with Luau and suggest outdated Roblox APIs. How to phrase the task, check the code and connect an agent to your project.
Codex error 403: causes and how to keep working
5 min · · errors
A 403 in Codex comes in three kinds: a region refusal, an account problem and gateway key restrictions. How to tell them apart by the error text and what to fix.
Cline or Cursor: what to pick if you want to pay only for tokens
6 min · · IDE
Cline is a free extension and you pay the provider for tokens. Cursor is sold as a product. We compare payment, context control and agent features and price a month of work.
Cursor or VS Code with AI extensions: what to choose in 2026
6 min · · IDE
Cursor is built on VS Code, but the AI is part of it. We compare it with plain VS Code plus an extension: what each path gives, how to use your own key and what it costs.
Cursor and Obsidian: an AI agent for notes in your vault
6 min · · IDE
An Obsidian vault is just a folder of Markdown files, so you can open it in Cursor and hand the agent tagging, link hunting and summaries. Here is how to keep the structure safe.
Cursor CLI: the Cursor agent in the terminal, install and setup
5 min · · агенты
The Cursor agent works in the terminal as well as the editor, with the agent command. Install it, configure it, run it in scripts and compare it with Claude Code and Codex.
Cline in Russia: installation and model setup without a foreign card
6 min · · IDE
The Cline extension runs locally, so the only question is where model requests go and how you pay for them. Step-by-step setup with one key and a task cost estimate.
Cline or Continue: agent or assistant, which to pick in VS Code
6 min · · сравнение
Cline takes a whole task and asks for permission, Continue offers chat, edit and autocomplete. How models, config and token spend differ between them.
opencode or Cursor: a console agent or an editor with AI
5 min · · сравнение
One lives in the terminal and works with any provider, the other brings a whole editor. A comparison by scenarios, model setup and price.
How to connect Qwen to VS Code: Companion, Cline and Continue
5 min · · IDE
Two ways to get Qwen in your editor: the official Companion for Qwen Code, or the Cline, Kilo Code and Continue extensions with an OpenAI-compatible key.
Cursor not working: common problems and how to fix them
6 min · · errors
Cursor froze, shows Reconnecting or does not answer. We go from simple causes to complex ones and cover problems with your own key and a gateway separately.
Claude Code in JetBrains: IntelliJ IDEA and PyCharm on Your Own Key
6 min · · IDE
The plugin does not bundle Claude Code. It launches the console agent in the IDE terminal. Install, gateway key, diffs and common failures explained.
Roo Code or Cursor in 2026: Roo Code is shut down, what to pick instead
7 min · · сравнение
Roo Code was shut down on May 15, 2026, so the choice is now between other VS Code extensions and the standalone Cursor editor. A practical comparison and a task cost estimate.
Cline Rules: how to write project rules in .clinerules
5 min · · IDE
Rules in .clinerules stop you from repeating the same requests in every task. Structure, Python and TypeScript examples, and the price of extra lines.