I Built a Vulnerability Triage Tool Without Knowing What EPSS or KEV Meant
In the last two posts I described how, unable to read code, I delegated implementation to Claude Code, built a vulnerability triage CLI called triag…
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Why Some RAXXO Tools Are One-Time Buys, Others Subscriptions
RAXXO sells across three shapes of value, merch, one-time digital downloads, and hosted tools, and the pricing model follows the shape instead of a…
52 Days of Silent Zeros: The Stop Hook Payload Has No usage Field
I used to be a college student scraping by on ¥100k a month. Then I was laid off. Six months later, after building an autonomous Claude Code environ…
How I Triaged 8,400 Production Errors Into 11 Real Bugs With Claude Code
TL;DR My error tracker had 8,400 events a week across ~340 distinct issues, and nobody on the team actually triaged them. I built a small pipeline t…
Running Claude Code in 4 Parallel Sessions Led to 'Team Development' — 7 Recipes to Prevent Collisions
📝 Originally published (in Japanese) at forge.workstyle.tech . In a previous article , we introduced an environment for parallel execution of coding…
Why My Nightly Ingest Stalled for 3 Days — and How Splitting One Task Into Sub-Steps Fixed It
I went from ¥100k/month as a university student, to ¥600k/month juggling multiple gigs, to exactly zero when my employer pulled the plug. Six months…
Which Skill Is Quietly Burning Your Tokens? Find Out From transcript.jsonl
Your monthly Claude Code bill went up 20%. You know that much. What you don't know is which Skill did it — and nothing in the tooling will tell you.…
The Portability Trap: When 'It Loads' Doesn't Mean 'It Works'
I ran a skill migration and nothing broke. Or so I thought. Break 3 in my migration diary noted that skills degraded silently. This is the deep dive…
A Blank Dashboard and a Fake 2.5M-Token Reading: Building a Token Fuel Gauge for Claude Code
A side hustle I started in college went from ¥100k a month to ¥600k once I was running several at the same time. A layoff took it to zero. Then I sp…
Claude Code's ELI5 Skill Explained: How It Works, Setup, and When to Use It
This article reflects Claude Code's spec as of August 2026. Since Claude Code updates frequently, check the official docs for the latest behavior. T…
52 Days, 2,340 Rows, Every Cost Logged as Zero: The Stop Hook Trap
Going from a $700/month student side hustle to a real business in six months came down to one thing: I stopped instructing Claude and started lettin…
An AI's “Done” Can't Be Trusted — Quality Gates That Stop False Completion With Evidence
On June 29, 2026, a mobile app reported that "the first wave of parity with the PC version is complete, 162 tests green." When we actually touched i…
A Supply-Chain Worm Wrote Itself Into Claude Code's Hook Files to Survive Credential Rotation
Rotating your credentials and removing a poisoned package is supposed to end an npm supply-chain compromise. In early August 2026, one worm made sur…
How I Decide a RAXXO Tool Needs a Redesign, Not a Patch
I track three signals before I touch a shipped RAXXO tool's core screens again A patch fixes one report, a redesign answers the same complaint from…
I Could Measure Claude and Codex Usage. I Still Couldn't Honestly Assign It to a Task.
Once you use Claude Code or Codex for real work, a total usage number stops being enough. You want to know which change consumed it. I did not build…
The 4,000-Token Tax: Auto-Disabling Claude Code Plugins You Haven't Touched in 30 Days
Hitting ¥1.2M/month taught me something I didn't expect: keeping the environment healthy has to come before doing the work. Why this system pays off…
How do you stop Claude Code from writing files?
I spent a week trying to keep a coding agent out of one directory, and I lost that argument at every layer that lives inside the agent. The markdown…
Four Traps in MCP Health Checking: What Broke My Overnight Batches
An MCP server dying at 2 a.m. used to mean waking up to a log full of connection refused and zero work done. Building a health-check hook that recor…
Claude Code session managers - what exists and what each one solves
Claude Code session managers: what exists and what each one solves I started out looking for a session manager. It took me a while to realise that l…
From kanban to harness: when the tracking tool becomes the orchestrator
When I shipped KittyClaw two weeks ago, the tool did one thing: serve as a board. The Claude agents ran alongside - first by hand, then via a dispat…
Cumora Makes Agent Coordination the Product, Not a Chat Feature
Cumora’s public repository presents a cross-platform team chat application in which AI agents occupy the same conversational spaces as people: direc…
Claude Code with any model: three ways to route it (incl. the 2-minute one)
Claude Code is the best agentic coding interface right now, but out of the box it only talks to Anthropic's API with Anthropic billing. Sometimes yo…
I Handed 41 Tasks to an AI Loop. The Bottleneck Was Judgment, Not Code
Is there a region at the bottom of your task ledger you haven't scrolled to in weeks? Mine held 41 tasks across two repositories. I use AI agents ev…
MCP, Subagents, and Hooks in Claude Code: The Guide I Wish I'd Had
Originally published on El Rack — Spanish tech reviews from a sysadmin/homelab perspective. Claude Code is capable right out of the box, but it star…
A 2-Token Prompt and a 39,966-Token Bill: Measuring What My Agent Actually Costs
There is a small cluster of posts going around right now about auditing your LLM invoice, and about how cost calculators get the numbers wrong. I we…
We cut our CLAUDE.md from 548KB to 34KB: what loads when, measured — and the commit gate that keeps it small
Our CLAUDE.md was 548KB. Every session — including every subagent — loaded all of it before doing any work. One measured headless run wrote about 15…
Claude Code Silently Deleted a User's Entire Agent-Config Directory — Twice
No delete command. No confirmation prompt. No user action of any kind in between. A Claude Code user's ~/.claude/agents/ directory was silently empt…
One terminal, two trust levels — running Claude Code against a real subscription and a cheap proxy
Part of an ongoing series on model routing and trust tiering for agentic coding tools. This one's the boring, working half — no bug hunt, just a set…
Four Failures That Made a Weekly launchd Job Actually Run
Every skill my AI setup learns lives in one folder on my laptop — and none of it reaches the repo I created yesterday. That gap is why I built a wee…
Don't Hand Your Inbox to an Agent
A Reddit thread on connecting Claude Code to a Yahoo Mail account turned into a solid field guide for scoping down what an AI agent is allowed to to…