Cutting Vercel deployment storage from 13.96 GB to 20.27 MB — previews off, retention down
A Vercel Hobby account went over its 10 GB deployment storage limit. Deployment count was the cause, at 147 MB per build and 189 builds in thirty days.
Developer Tooling
A Chrome profile per project for chrome-devtools MCP — one gitignored .mcp.json each
chrome-devtools-mcp shares one Chrome profile across all projects, so two repos cannot both drive Chrome. A per-project .mcp.json with --userDataDir fixes it.
Markdown as the source of truth in Git — PDF on demand built with WeasyPrint
Git as the source of truth for a specification: semantic line breaks for readable diffs, a check proving nothing changed, and WeasyPrint for PDF on demand.
A stale TypeScript server reported TS5097 on a correct file — deleting the .ts then broke the script
A stale TypeScript server reported TS5097 on a correct import, and deleting the .ts broke a Node script while tsc stayed green. The cause was a failed extends.
Marp vs Reveal.js built from identical content — Markdown slides vs an HTML framework
Building the same deck in Marp and Reveal.js: source readability at 243 vs 287 lines, the animation gap, export formats, and which one fits which job.
Shaping a session's work into commits — git log for the convention, reset --soft for the re-cut
Decide a commit shape by reading the repository history first, then use git reset --soft to re-cut unpushed commits until they match what git log shows.
pnpm and Windows broke this blog's build twice — a shadowed Chocolatey install, then a blocked symlink
pnpm's version switcher corrupted its cache behind a shadowed Chocolatey install, and Windows separately blocked a build from symlinking its dependencies.
Granted on Windows swaps a plaintext AWS key for SSO — and be aware of the two AWS logins
Granted and AWS IAM Identity Center replace a static IAM key with short-lived SSO credentials on Windows. The classic AWS sign-in form never accepts it.
A Claude Code review skill for a repo I don't own — self-review, PR body, and diff hunks
Porting a Claude Code release skill to a repo I cannot merge or tag: what gets cut, why git diff HEAD lets review run before the commit, where ignore rules go.
Running a Claude Code skill from another repo — a symlink, cd -P, and every path absolute
Making a Claude Code skill reachable from any repository: a symlink for discovery, additionalDirectories for access, one cd -P at entry, and no relative paths.
Dependabot minimum release age and auto-merge — the trap in a private repo
On a private repo the dependency graph is off by default, so Dependabot opened no npm pull request, and the auto-merge workflow merged 45s before CI finished.
CLAUDE_PROJECT_DIR let me move my glossary out of a Claude Code skill — and stop approving every write
Claude Code treats .claude/ as a protected path, so allow rules cannot pre-approve writes there. Moving a mutable glossary out with CLAUDE_PROJECT_DIR.
A Claude Code /logo skill built from five wrong turns — SVG paths, regex bounds, a wrong kanji
Redesigning this blog's logo and code font with an AI agent: a broken SVG letterform, a regex bounding box, a wrong kanji, and the /logo skill it produced.
My work email was in all 27 personal repos — fixing it with git includeIf and filter-repo --mailmap
Git identity belongs to the directory, not the repo. includeIf gitdir fixes it going forward; git filter-repo --mailmap fixes the commits already pushed.