Run a git command when entering a directory
On Mastodon , Eric Meyer asked: A bash script I want: whenever I cd into a repository directory from a directory outside that repository, git branch…
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I Was Burning $1.20 a Night on Nothing: A Claude Code Skill Library That Harvests and Curates Itself
Going from ¥100k/month as a student to ¥1.2M/month wasn't a matter of working harder. It was a matter of building an environment that keeps running…
Auto-Generating an Index of Your Claude Code Custom Agents from Their Frontmatter
This is a continuation of my "Claude Code environment" series. In the previous post, Automatically thinning conversation logs to prevent bloat , I i…
Creating my own shell for unix
Building Astra: A Modern Shell in Rust I've been working on a personal project called Astra , an interactive shell written in Rust. The goal isn't t…
When Claude Detects "Why Isn't This Fixed Yet?" and Repairs Its Own CLAUDE.md: A Self-Improvement Loop Driven by Frustration Signals in Transcripts
In a previous post , I extracted skill usage stats from my conversation logs. This time I'm going the other way: a weekly loop that reads the transc…
Log Every Agent Invocation: Building Usage Analytics with Claude Code's Stop Hook and transcript_path
In the previous post in my "Claude Code environment" series, automatically pruning zombie agents , I wrote about finding agents that are defined but…
Auto-Retiring Skills You No Longer Use: Weekly Skill Lifecycle Management with launchd
Generating skills automatically is the easy part. Deciding when to throw them away is where everything falls apart. In my last post I covered auto-d…
Fully Custom Claude Code Status Line: A JSON-Driven 3-Line Readout of Quota, Cost, and Health
This is part of my "Claude Code environment" series. Last time I wrote about the Codex worktree swarm , a setup that gets Codex and Claude Code coll…
What's Actually in My .zshrc (and Why)
Your shell config is mostly a graveyard. A line you added in 2019 to fix a problem you don't remember having. An alias you're afraid to remove becau…
Most AI dev tools assume you have a repo. Ops engineers have a broken node and a 3am page.
Most AI coding tools assume you're sitting in front of a repo. There's a working directory, some source files, tests, maybe a CI pipeline. The AI re…
A Tiny zsh Trick: Modify Your Last Command
Sometimes I run a command and immediately realize I only need to change one small part of it. For example, say I just converted a video with ffmpeg…
Shell Basics (Bash, Zsh, Sh)
A shell is a command-line interpreter that allows users to interact with the Linux operating system. The shell: Accepts commands Executes programs M…
Don't Make the Agent Re-Run the Test Suite to Find the Failure
Here is a small failure mode that cost me time for longer than it should have. The agent would run the test suite. Tests would fail. The agent would…
i just broke my entire flow for maybe weeks
It turns out I forgot the command to go back in Yazi and accidentally pressed one that unleashed this beast. # { on = "<C-p>", run = "shell --…
A Soft Introduction to EasyShell
"Can it be simpler?" - A recurring thought I've had while working on build automation. EasyShell (command: easy ) is a minimal shell scripting langu…
How to use Kubectl more efficiently
kubectl Hacks That Changed How I Work With Kubernetes Selma Guedidi Selma Guedidi Selma Guedidi Follow Apr 29 kubectl Hacks That Changed How I Work…