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Claude Code: from zero to professional. Tips, tutorials and deep dive guides from an engineer who uses it 12 hours a day.
Claude Code first steps: the fundamentals that don't expire
The Claude Code fundamentals that don't expire: install, sessions, context, quota, models, permissions. What you actually need to grasp on day 1.
AI: the joy of missing out on what doesn't matter
You can't keep up with AI, and you shouldn't try. The answer isn't resistance or passive acceptance: go all in, but deep on one thing instead of scattered.
Claude Code Agent View: managing parallel agents without leaving the terminal
I spent months managing many Claude Code agents by hand. Agent View now does it: my terminal-native workflow with Warp and Neovim, and the gaps I patch.
Undo in Claude Code: Ctrl+_ takes back what you typed, /rewind takes back what Claude did
You wiped half a prompt by accident and assumed it was gone. It isn't: Ctrl+_ steps back through what you typed, up to fifty times, cursor and pasted content included. And it has nothing to do with /rewind.
Fable 5.1 in Claude Code: get everything out of it with three lines in your CLAUDE.md
Anthropic shipped a prompting guide for Fable 5.1 and people are already pasting it whole into CLAUDE.md. Claude Code has carried it since 2.1.257, switched on only when the model is Fable 5.1. What's left for you fits in three lines.
Fable 5.1 in Claude Code: more power for 25% less
It shipped today and the note says 25% cheaper. I applied it to my three longest sessions and it lands on 45%. The per-token price hasn't moved: what dropped to a quarter is the cache read, which is exactly the line a long Claude Code session pays.
Attaching files with @ in Claude Code: the hidden cost
You type @file thinking you handed over a pointer. You handed over a whole copy, and another one every time you type it again.
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