9 min read
Where Claude Code keeps your conversation history, and the thirty days you have to read it
Where Claude Code stores conversation history, the cleanupPeriodDays default that deletes it after 30 days, and four ways to read a session file.
Notes on coding agents and the pages they leave behind, on moving between notes apps, and on the plain mechanics of keeping what you think. Written and published from a Sumibako vault.
Notes on coding agents and the pages they leave behind, on moving between notes apps, and on the plain mechanics of keeping what you think. Written and published from a Sumibako vault.
9 min read
Where Claude Code stores conversation history, the cleanupPeriodDays default that deletes it after 30 days, and four ways to read a session file.
9 min read
Claude Code vs Cursor in October 2026: what each is, what they cost now, how each rations Claude, and the $28 setup that runs one inside the other.
7 min read
ChatGPT Space and Pages explained: which plans can make a page, what replaced Library, how Projects differ, sharing and training, and the missing export.
8 min read
What Claude Code's compaction keeps and drops, when it fires without asking, the idleCompaction setting that stops it, and the one habit that makes it harmless.
8 min read
Cursor's pricing since SpaceX: the X Subscription tiers, what happened to the $20 Pro plan, what Claude costs in Cursor now, and when Claude Code is cheaper.
8 min read
Anthropic filed its S-1 on 26 October. What it tells people who pay for Claude: usage limits as a risk, the March outage, Claude Code, and the numbers.
8 min read
Every way to export ChatGPT chats in 2026: the full data export, share links, PDFs and locked chats, with what each one keeps, loses, and which plans have it.
10 min read
PHP2Shell, Railway, Next.js, LiteLLM, eMudhra, Plex, GitLab, Cairn: 13 to 24 October 2026 in order, what the numbers mean, and what the week had in common.
11 min read
Nine habits that keep a small site out of a week like this one: supported runtimes, something that nags, lockfiles, short-lived tokens and scoped secrets.
10 min read
Eight eMudhra keys were integers under 256, one of them 4. Why browsers blocked them in hours, why your Docker image did not, and what to check by 27 October.
10 min read
A key committed in May became a credential stealer on PyPI in October; five OVHcloud CLI releases were swapped for 94 minutes. What to do if you got either.
10 min read
Next.js fixed two critical RCEs on 14 October, Node.js four high bugs on 21 October. My site ran 16.3.3. How I checked which applied, and the one that did.
11 min read
PHP2Shell from the sources: two unauthenticated RCEs in PHP itself, a leak, an embargo broken twice, attacks four days early, and five checks for your site.
10 min read
Railway, Zeabur and TiDB Cloud lost customers' secrets in one week. What encrypted meant, how Zeabur's second breach grew from its first, and what to rotate.
7 min read
How Claude's usage limits work in 2026: the five-hour session, the weekly cap, what eats them fastest, and what to do when you hit one.
6 min read
How Claude's memory works in 2026: what it saves, what it never will, how to see and edit it, and how Claude Code remembers differently.
8 min read
Custom GPTs retire on 11 December 2026. What the move to plugins keeps, what it drops, and how to save a copy of your GPT before it goes.
8 min read
Every ChatGPT limit OpenAI publishes, plan by plan: chats, thinking, context windows, files, projects, voice and storage, and what it keeps quiet.
7 min read
Moving from ChatGPT to Claude: what the memory import brings across, what stays behind, and the order to move chats, projects and GPTs in.
8 min read
Memory full in ChatGPT now means two different things. How to tell which one you have, what OpenAI changed since 2025, and what to do about each.
8 min read
What ChatGPT's maximum conversation length is, why chats hit it sooner since September 2026, and a handoff note template so a new chat carries on.
7 min read
Obsidian has no official MCP server. Six community ones compared: what each needs running, what it does on delete, and which to install for which job.
6 min read
Why Notion is slow, in its own engineers' words: blocks, one shared database, a late cache and your own databases, and what to do without leaving.
6 min read
What Claude's length limit is, what automatic context management changed, and a handoff note template so a new chat carries on where the old one stopped.
7 min read
Obsidian has no web version. Five ways to reach a vault from a browser anyway, from GitHub's free editor to the real app on a server, and what each costs.
6 min read
Whether Notion AI can be switched off, and on which plans. Then ten notes apps checked for AI on their own sites, from none at all to off until you say so.
7 min read
Obsidian wins for Claude Code, Notion wins for Claude in a browser or on a phone. Speed limits, undo and public links compared, from each one's own docs.
8 min read
What Karpathy's LLM wiki really is, what Claude already remembers on its own, and the smallest second brain that works: three files and one paragraph.
7 min read
Your coding agent saw everything you shipped. A template and a Friday prompt that turn commits and merged PRs into a brag document, and the half it cannot see.
7 min read
What users of Pocket, Omnivore, Skiff and five other dead apps got to keep, and a ten-minute exit drill for Apple Notes, Google Keep, Notion and Evernote.
5 min read
What Claude Code artifacts, Cursor shared canvases and Codex Sites each share, who can open one, and what it costs. And when a page in your notes fits better.
5 min read
Notion, Obsidian, Apple Notes, Evernote, Craft, Reflect, Inkdrop and Sumibako: who makes each MCP server, where it runs, and what an AI agent can do with it.
5 min read
Claude Code writes plans to ~/.claude/plans and deletes them after 30 days by default. Where Cursor and Codex keep theirs, and the two settings that fix it.
7 min read
What the sign-in grants, what the tool list allows, what you approve, and the risk no permission screen shows. Five questions to ask before you press Allow.
6 min read
What a Notion export really contains: the writing and the page tree come out well, a database leaves as one frozen view, and comments only survive as HTML.
5 min read
Add one address in Claude.ai's connector settings, sign in, and Claude can write into your notes, search them, and hand you a link. No terminal, no token.
5 min read
The repository, a wiki, or a link service. What each home for agent-written pages is good at, where Notion's API stops, and the rule I use to choose.
6 min read
Plan mode writes a good plan and leaves it in a terminal. Three ways to hand it to someone, from a draft pull request to one command that returns a link.
