I run AI and SEO businesses. Here is everything I learn building them: notes from the day it happened, longform guides once the pattern held, and artifacts that run in production.https://samuelhuang.org/en-ushttps://samuelhuang.org/artifacts/agent-goal/https://samuelhuang.org/artifacts/agent-goal/Rewrites a rough idea into a structured agent brief with five named sections.Fri, 07 Aug 2026 00:00:00 GMTArtifacthttps://samuelhuang.org/artifacts/calibrate/https://samuelhuang.org/artifacts/calibrate/Reads the session for corrections and patterns, then proposes concrete skill and setup changes.Fri, 07 Aug 2026 00:00:00 GMTArtifacthttps://samuelhuang.org/artifacts/check-later/https://samuelhuang.org/artifacts/check-later/Writes a follow-up check into a local registry, either on request or automatically after work that needs verifying.Fri, 07 Aug 2026 00:00:00 GMTArtifacthttps://samuelhuang.org/artifacts/cleanup-workos/https://samuelhuang.org/artifacts/cleanup-workos/Full housekeeping sweep over a workspace: file placement, stale overviews, duplicate facts, rule drift.Fri, 07 Aug 2026 00:00:00 GMTArtifacthttps://samuelhuang.org/artifacts/deploy/https://samuelhuang.org/artifacts/deploy/Deploys an app to Vercel production, with an explicit confirmation step and a hard stop on failure.Fri, 07 Aug 2026 00:00:00 GMTArtifacthttps://samuelhuang.org/artifacts/devil/https://samuelhuang.org/artifacts/devil/Red-teams a finished artifact with blunt criticism only.Fri, 07 Aug 2026 00:00:00 GMTArtifacthttps://samuelhuang.org/artifacts/e-reader-chapter-audit/https://samuelhuang.org/artifacts/e-reader-chapter-audit/Audits and repairs chapter structure and audio sync in a reader app: outline, table of contents, chapter jump, transcript boundaries, word timing.Fri, 07 Aug 2026 00:00:00 GMTArtifacthttps://samuelhuang.org/artifacts/follow-up-runner/https://samuelhuang.org/artifacts/follow-up-runner/Walks the follow-up registry on a schedule and executes every check whose due time has passed.Fri, 07 Aug 2026 00:00:00 GMTArtifacthttps://samuelhuang.org/artifacts/humanizer/https://samuelhuang.org/artifacts/humanizer/Strips the tells of AI writing from a draft: dash overuse, rule of three, inflated vocabulary, vague attribution.Fri, 07 Aug 2026 00:00:00 GMTArtifacthttps://samuelhuang.org/artifacts/import-skill/https://samuelhuang.org/artifacts/import-skill/Installs a skill from a downloaded zip or folder, after a security review.Fri, 07 Aug 2026 00:00:00 GMTArtifacthttps://samuelhuang.org/artifacts/n8n-expression-syntax/https://samuelhuang.org/artifacts/n8n-expression-syntax/Validates and fixes n8n expression syntax and the errors that come out of it.Fri, 07 Aug 2026 00:00:00 GMTArtifacthttps://samuelhuang.org/artifacts/process-inbox/https://samuelhuang.org/artifacts/process-inbox/Clears the inbox folder by triaging every file into a canonical home and extracting the durable facts first.Fri, 07 Aug 2026 00:00:00 GMTArtifacthttps://samuelhuang.org/artifacts/session-handoff/https://samuelhuang.org/artifacts/session-handoff/Ends a session by updating the project context file and memory, then writing a clean handoff.Fri, 07 Aug 2026 00:00:00 GMTArtifacthttps://samuelhuang.org/artifacts/skill-creator/https://samuelhuang.org/artifacts/skill-creator/Creates skills, edits existing ones, and runs evals to benchmark how reliably they fire.Fri, 07 Aug 2026 00:00:00 GMTArtifacthttps://samuelhuang.org/artifacts/social-content/https://samuelhuang.org/artifacts/social-content/Generates posts for X, Threads, and LinkedIn with voice calibration and a memory of what has already been posted.Fri, 07 Aug 2026 00:00:00 GMTArtifacthttps://samuelhuang.org/artifacts/tweak/https://samuelhuang.org/artifacts/tweak/Injects a live slider panel into any HTML page, then bakes the chosen CSS values back into the source.Fri, 07 Aug 2026 00:00:00 GMTArtifacthttps://samuelhuang.org/artifacts/web-perf/https://samuelhuang.org/artifacts/web-perf/Measures Core Web Vitals through Chrome DevTools and identifies the specific bottleneck.Fri, 07 Aug 2026 00:00:00 GMTArtifacthttps://samuelhuang.org/artifacts/work-map/https://samuelhuang.org/artifacts/work-map/Generates the current map of areas, projects, and lab work, and how they relate.Fri, 07 Aug 2026 00:00:00 GMTArtifacthttps://samuelhuang.org/notes/copy-the-frame-not-the-fuel/https://samuelhuang.org/notes/copy-the-frame-not-the-fuel/Two reference sites, same visual language, different engine. One runs on proof of person, this one runs on proof of archive.Thu, 06 Aug 2026 00:00:00 GMTNotehttps://samuelhuang.org/guide/authority-hacker-skills/https://samuelhuang.org/guide/authority-hacker-skills/What every skill in the Authority Hacker Claude Code plugin library actually does, grouped by job, with the router and lane pattern that runs underneath it. 18 plugins, 38 skills, and when to reach for each one.Tue, 04 Aug 2026 00:00:00 GMTGuidehttps://samuelhuang.org/notes/the-schema-is-the-contract/https://samuelhuang.org/notes/the-schema-is-the-contract/content.config.ts is the one file every page builds against. Making the notes tier cheap meant deciding what it is allowed to require.Sun, 02 Aug 2026 00:00:00 GMTNotehttps://samuelhuang.org/notes/accent-fails-aa/https://samuelhuang.org/notes/accent-fails-aa/#9E642E on #050505 measures 4.19:1. It looks fine and it is not usable as text. The token now says so in a comment.Tue, 28 Jul 2026 00:00:00 GMTNotehttps://samuelhuang.org/guide/automation-schedulers/https://samuelhuang.org/guide/automation-schedulers/How to choose between macOS LaunchAgents, cron, Codex Automations, Claude Scheduled Tasks, and Claude Code Routines. Some run a command on your Mac, others hand an AI a prompt, and only one keeps going with the laptop closed.Mon, 27 Jul 2026 00:00:00 GMTGuidehttps://samuelhuang.org/notes/thirty-nine-lines-of-javascript/https://samuelhuang.org/notes/thirty-nine-lines-of-javascript/The interactive guide was assumed to be the hard migration. Measured, it was trivial. The real cost was 13,000 lines of bespoke HTML nobody had counted.Wed, 22 Jul 2026 00:00:00 GMTNotehttps://samuelhuang.org/notes/nine-two-one/https://samuelhuang.org/notes/nine-two-one/Three months of publishing, in order. A curve that shape is a format cost problem, not a discipline problem.Thu, 16 Jul 2026 00:00:00 GMTNotehttps://samuelhuang.org/notes/public-serves-verbatim/https://samuelhuang.org/notes/public-serves-verbatim/Old hand-built guides drop into public/ untouched, keep their URLs, and get replaced one at a time. Nothing 404s at any point.Sat, 11 Jul 2026 00:00:00 GMTNotehttps://samuelhuang.org/notes/cloudflare-in-front-of-vercel/https://samuelhuang.org/notes/cloudflare-in-front-of-vercel/Vercel renews via an HTTP-01 challenge that has to reach Vercel. Orange-cloud the record and renewal fails silently while the site keeps working.Mon, 06 Jul 2026 00:00:00 GMTNotehttps://samuelhuang.org/guide/claude-token-grey-market/https://samuelhuang.org/guide/claude-token-grey-market/A threat-intel field guide to the eight-layer supply chain behind cut-price "Claude" API resale: antidetect browsers, residential-proxy botnets, SIM banks, deepfake KYC bypass, MIT-licensed relays, silent model swaps, and the log corpus that is the real product. Every named tool, repo, paper, and source tracked.Sun, 05 Jul 2026 00:00:00 GMTGuidehttps://samuelhuang.org/notes/forty-eight-hour-ns-ttl/https://samuelhuang.org/notes/forty-eight-hour-ns-ttl/The child-side NS records carry a 172800 second TTL. That is the real worst case for undoing a nameserver change, and it is not propagation.Wed, 01 Jul 2026 00:00:00 GMTNotehttps://samuelhuang.org/notes/tunnel-needs-the-zone/https://samuelhuang.org/notes/tunnel-needs-the-zone/Pointing a CNAME at <uuid>.cfargotunnel.com from an outside DNS provider fails, because that name has no public A record.Thu, 25 Jun 2026 00:00:00 GMTNotehttps://samuelhuang.org/notes/cloudflared-zone-from-cert/https://samuelhuang.org/notes/cloudflared-zone-from-cert/tunnel route dns printed success and created the record in the wrong zone, because the zone comes from the cert, not the argument.Tue, 23 Jun 2026 00:00:00 GMTNotehttps://samuelhuang.org/guide/multi-computer-setup/https://samuelhuang.org/guide/multi-computer-setup/How to work across a portable MacBook Pro and an always-on Mac Mini: make the Mini your home base, reach it from anywhere with Tailscale, and drive Claude Code on it with the Desktop app, SSH, and Remote Control.Tue, 23 Jun 2026 00:00:00 GMTGuidehttps://samuelhuang.org/guide/awesome-traffic-bot/https://samuelhuang.org/guide/awesome-traffic-bot/A hands-on field guide to Dalga's Awesome Traffic Bot (ATB): how it works, install, the IP-changing toolkit, building a CTR campaign step by step, advanced functions, and a playbook for moving CTR and search volume. Built from the official docs plus every tutorial transcript.Sat, 20 Jun 2026 00:00:00 GMTGuidehttps://samuelhuang.org/guide/awesome-youtube-bot/https://samuelhuang.org/guide/awesome-youtube-bot/A hands-on field guide to Dalga's Awesome YouTube Bot (AYB): how it sends human-like views, accounts and IPs, building view/like/comment campaigns, nested campaigns, random-act warm-up, mobile emulator views, and a playbook for YouTube CTR and ranking. Built from the product docs plus every tutorial transcript.Sat, 20 Jun 2026 00:00:00 GMTGuidehttps://samuelhuang.org/notes/fifteen-style-blocks/https://samuelhuang.org/notes/fifteen-style-blocks/Counted the CSS across the old guides before touching the design. 252 of 391 class names appeared in exactly one file.Wed, 17 Jun 2026 00:00:00 GMTNotehttps://samuelhuang.org/notes/two-blocks-one-index/https://samuelhuang.org/notes/two-blocks-one-index/robots.txt had Disallow: / and vercel.json set X-Robots-Tag: noindex on every route. Removing either one on its own changes nothing.Fri, 12 Jun 2026 00:00:00 GMTNotehttps://samuelhuang.org/guide/claude-subagents/https://samuelhuang.org/guide/claude-subagents/The complete guide to Claude Code subagents: what they are, when to use one, how to build your own, and how to save money. From the 30-second version to a fleet of orchestrated specialists.Wed, 10 Jun 2026 00:00:00 GMTGuidehttps://samuelhuang.org/guide/every-claude-feature-ranked/https://samuelhuang.org/guide/every-claude-feature-ranked/All 137 verified Claude Code features, scored by a three-judge panel across Impact, Breadth, Ease, Novelty and Wow. The video tier board, the ranked Top 50 with full score breakdowns and official source links, and the ranks 51 to 137 appendix.Wed, 10 Jun 2026 00:00:00 GMTGuidehttps://samuelhuang.org/guide/skill-store-map/https://samuelhuang.org/guide/skill-store-map/A plain-English inventory of all 135 local, Codex, OpenAI connector, GitHub, Notion and Claude Cowork skills installed for this workspace. Every card separates what the skill is for from where it came from, and the whole inventory is searchable by name, category, source, runtime or install family.Wed, 10 Jun 2026 00:00:00 GMTGuidehttps://samuelhuang.org/guide/tool-agnostic-setup/https://samuelhuang.org/guide/tool-agnostic-setup/Set one project up so Claude Code and Codex both work from the same context. What each tool expects, the folder layout side by side, a cheat sheet, the five differences that trip beginners up, and two copy-paste conversion prompts.Tue, 02 Jun 2026 00:00:00 GMTGuide