Claude Usage: April 2026

@joshuashew.bsky.social

Claude Usage: April 2026

日本語版

Continuing from the February–March audit. Scope expanded this time to include everything — coding, writing, automated work. Written to be readable for non-technical readers too; technical terms are explained on first use.


Research & Synthesis

  • Current events — used Claude to get caught up on unfolding news stories in real time, including the Trump evacuation at the White House Correspondents' Dinner the night it happened.
  • Deep research sessions — a multi-hour session on AI safety: how AI systems can develop unintended goals, what happens to that risk as models scale, and what recent security research findings mean for the field. Pulled from academic papers and primary sources.
  • AI-assisted vulnerability research — researched how security researchers are using Claude to find bugs in old software, and what it means for the profession.
  • Academic paper briefing — read and synthesized the BCG/Mollick "jagged frontier" follow-up (Organization Science, March 2026): AI assistance made workers worse on tasks outside AI's strengths, and flattened the range of idea quality across teams — fewer bad ideas, but also fewer standout ones.
  • Mission briefing — tracked down Hank Green's Artemis II video, synthesized the mission (April 1 launch, April 6 lunar flyby, new human distance record, Christina Koch as first woman beyond low Earth orbit), and sourced full-resolution NASA photos to use as desktop wallpapers.
  • Background research — topics included the history of karate demographics in the US and Japan; US data privacy law as it applies to educational nonprofits; and how a local school's math tracking policy works, framed for practical parent conversations.

Writing & Voice

  • Text drafting — drafted a message to family members about a schedule change, from voice memo input in the car.
  • Blog post — researched and wrote a supply chain harm comparison published to WhiteWind (this blog) in Claude's voice, comparing the human and animal costs of different supply chains using a consistent per-person-per-year framework.
  • Work emails — explored and refined the workflow for drafting teacher outreach emails at the tutoring center: developed formatting guidance and fixed formatting issues in Gmail drafts.
  • Social post drafting — drafted a short Bluesky post describing a Claude bug I'd noticed: tools would disappear from view mid-conversation while still working in the background.

Everyday Life & Logistics

  • Apartment hunting — neighborhood research for an upcoming move: commute times, budget fit, neighborhood character.
  • On-the-go lookup — found a grocery store open on Easter Sunday while on a drive.
  • Growing onions from sprouted bulbs — what to do with a bulb that's already sprouting; the biology of biennials; three options.
  • Guacamole pricing — why Chipotle charges extra for guac: Michoacán supply concentration, demand growth, and the history of the policy.

Operational / Work Tasks

(I run an afterschool math tutoring center.)

  • Inbox triage — identifying which parent emails had gone too long without a response, by cross-referencing the day's student schedule against the inbox.
  • Schedule audits — comparing enrollment spreadsheets across multiple versions to find discrepancies.
  • Student prep — reading parent correspondence, reviewing test material PDFs, pulling a student's learning plan, and building a multi-session prep plan for an upcoming test.
  • Policy research from email history — searching inbox history to understand what had previously been communicated to a family, before following up.
  • Student progress review — pulling recent session data from the student management system for a specific student and summarizing topic coverage and progress.
  • Curriculum lookup — matching a student's specific skill gap to the relevant curriculum topic codes.
  • Process questions — researching options for accessing historical records tied to a former account; correcting my own default behavior on email reply conventions.

Troubleshooting & How-To

  • Printer diagnosis and replacement research — diagnosed a recurring paper-feed problem, found the replacement part, and compared the repair cost against buying a newer model; recommendation included.
  • iPhone water resistance — looked up the IP68 spec, what Apple's tested parameters actually are, and where the practical limitations lie.
  • macOS file deletion — looked up the difference between two ways to delete files from the command line (terminal), and why the more dangerous default might actually be the better habit.

Bluesky / Social Media

  • Personalized feed — the most interesting new thing in this category: I now have a custom "Mutuals (Filtered)" Bluesky feed that Claude manages. It's my default feed. Claude reads my like history and explicit "show more / show less" feedback, builds a preference profile from it, scores incoming posts from people I follow, and updates the filter over time to stay in tune with my tastes. Also used Claude to synthesize two months of like patterns into a one-off reading list from recent posts.
  • Social graph analysis — for specific accounts, looked up how many people I follow also follow or block them.
  • Thread analysis — decoded a joke in a reply thread: a pun mapping the difficulty of political coordination onto the difficulty of AI safety.
  • Alt-text — wrote image descriptions (alt-text) for three separate posts: a NASA moon photo, a Claude screenshot, and a notes app screenshot.
  • WhiteWind — WhiteWind is the blogging platform this post is published on. Published the February–March audit, a Japanese translation of the same, and the supply chain blog post.

Data Visualization

  • Bluesky likes over time — charted cumulative likes received since November 2024, with annotated spikes; identified what drove the largest one-day jump.
  • Pregnancy and cognitive function — researched the literature on how pregnancy affects memory and thinking, then used Claude's built-in visualization tools to build an interactive chart showing the research findings over time, with honest labeling of where the data runs out and extrapolation begins.
  • Salary comparison — horizontal bar charts comparing teacher and speech-language pathologist salaries in a California school district from 2010 to 2025, with a toggle between raw numbers and inflation-adjusted figures.

Autonomous Operations

A layer of scheduled tasks now runs without my involvement — firing automatically, doing their work, and leaving outputs for me to review. Nothing gets sent or written to external systems without my sign-off. 67 sessions ran in April; none were interactive.

  • Daily ops — scans three Gmail inboxes, classifies threads, generates draft replies, logs an ops report and daily note to my Obsidian vault (a notes app), checks whether automated tests are passing on my personal projects, and surfaces calendar items. Draft volume ranges from a handful on quiet days to 18 after a mass email campaign gets replies. One April run caught a bug it had introduced the prior day, filed and merged a fix, and redeployed before I was awake. Another spotted a message that had been sent to the wrong recipient and queued an apology draft.
  • Daily review — runs at ~11pm, reviews what happened during the day, consolidates notes and patterns into longer-term memory, and flags anything that needs my attention.
  • CRM data sweep (weekly) — connects to the student management system across all centers, checks enrolled students for data quality issues (duplicate records, missing IDs, formatting problems), and categorizes findings as new, resolved, or persisting.

Building

Most of this month's technical work was infrastructure — the plumbing that makes the rest of the list possible.

  • Browser control as a remote Claude tool — the biggest build of the month. I had a local integration that let Claude control a Chrome browser instance, but it only worked on my machine. Rebuilt it as a remotely accessible tool: authentication layer, Cloudflare (network routing) tunnel, automated test pipeline, macOS background service, and a self-deploy endpoint. Now any Claude session on claude.ai can control my browser.

  • Memory system reliability — Claude's persistent memory reads from a local database at session start. Fixed two failure modes: the web environment was failing silently due to a path-finding assumption that doesn't hold there, and startup was intermittently timing out due to tunnel reconnection lag.

  • Multi-environment startup — the session startup routine now handles three different Claude environments (web, desktop agent, code agent) with different behavior for each.

  • Context-compression recovery — added a hook so that when the desktop agent runs out of working memory and has to compress, it re-runs the startup routine on the other side rather than losing its loaded state.

  • Progress report email pipeline — extended the system that pulls student data from the student management system and drafts parent progress report emails. Added a three-bucket topic classification framework, a full email composition guide with narrative arc and grade-level framing, and multi-step troubleshooting for edge cases.

  • Network layer improvements — expanded automatic retry to cover all gateway errors; separately documented a six-mode failure taxonomy for the sandbox network layer from external probe data, and corrected a diagnostic heuristic that was producing false positives.

  • Handoff protocol — updated the instructions Claude uses when passing a task to another Claude session; added guidance for distinguishing exploratory work from implementation work.

  • Filtered Bluesky feed engine — built and deployed the system behind the personalized Bluesky feed mentioned above. Runs hourly, scores incoming posts using both text and any embedded images, and adapts via a calibration loop from explicit "more like this / less like this" signals. Includes endpoints for remote deploy and self-restart, cursor pagination for the public feed view, and recovery for rate-limit and partial-failure scenarios.

  • Personal infrastructure dashboard — new web UI for monitoring the credential service that gates Claude's external access (network requests, third-party APIs, file operations on my machine). Shows live request logs, active sessions per service, health status, and rate-limit headroom. Dark/light themes, responsive down to a quarter-screen on a small laptop. Self-deploys when I push a change.

  • Containerized job runner — service for running long scripts inside an isolated container on my Mac, with full internet access and automatic cleanup. Lifts Claude's normal short-lived script timeout for compute-heavy tasks like audio transcription or large data pulls.

  • Static-tools hosting — new public site for one-off web tools and reading material at a dedicated subdomain. First page is an annotated MacAskill 80,000 Hours transcript with proper social-card preview metadata. Hosted via Cloudflare Pages with git-integration auto-deploy.

  • Tutoring-center staff tools — internal site for center staff: student lookup (linked learning plan, mastery progress, session notes, guardian contact, account ID) and an SMS-format comparison page used during a texting-tool evaluation. Authenticates automatically so staff don't see a login form.

  • Parent-email composition system — formal framework for drafting parent-facing emails (scheduling, pauses, teacher outreach, follow-ups). Backed by a separate policy reference so the drafts reflect how things actually work at the center, not just the written policy. Used by the daily ops loop and ad-hoc draft requests.

  • Curriculum search overhaul — re-ran the math curriculum cross-listing across all 22 topic areas (1700+ topics) so queries for specific skills return the most relevant codes regardless of which official topic file they live in. Also wrote a refresh procedure so this can be redone in a couple of hours after HQ adds new material.

  • Local-resource access for Claude — added ways for Claude to read Apple Voice Memos files for transcription, pull individual frames from YouTube videos for visual reference, and search and read files anywhere in my home directory. Obsidian (notes app) vault file moves now go through the Obsidian command-line tool so wiki-links between notes don't break when Claude reorganizes.

  • Web-based autonomous Claude — set up the configuration behind autonomous web sessions: a startup hook that loads identity, memory, and the module catalog before work begins; a safe recipe for editing that configuration (the standard editor is locked out for security reasons); and a daily check that the vendored memory library hasn't drifted from upstream. This is what makes the autonomous-session loop accessible from any browser, including phones.

joshuashew.bsky.social
Joshua Shew

@joshuashew.bsky.social

If your brain isn’t tired by the end of the day, you’re doing it wrong

he/him

2026 theme: Year of Exploration

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