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claude code 101 for founders
claude code · a founder’s field guide

Claude Code 101 for Founders

Non-obvious ways to use Claude Code — and why your two-person company is worth more than a fifty-person one.

In the last seven months the way to build software was reinvented. Pure software is trending toward free; intelligence is trending to zero margin. The fifty-person, post-Series-A org is the Blockbuster of the org chart. What survives is secrets, trust, distribution, community — and absurd throughput from tiny teams living inside Claude Code. This is the field guide I wish I’d had twelve months ago.

Disclosure: I’m a so-so software engineer who shipped quietly for eight months — then something clicked in November ’25, and now I out-ship most. This is the guide to what changed.

2,291 contributions in the last 12 months · github.com/altmbr
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eight quiet months — then something clicked in november ’25.
the thesis

Three things to walk out with.

  1. AI slop is the game; hand-crafted code is out. Teams of one are running circles around much larger teams. Larger teams are downsizing. Engineers who don’t adopt are out.
  2. You can build now — and the code is the easy part. Claude writing code is ~30% of shipping. The other 70% — process, hosting, review, skills — is the actual game.
  3. Claude Code is not “code.” Research, crons, mobile, voice, non-code folders: the 80% of the surface nobody talks about.
the stakes

Anthropic ran a ~47× in ~15 months — and Claude Code is the fastest-growing slice inside it.

This is the single fastest enterprise ramp I’ve ever seen, and it’s happening inside the exact thing this guide is about.

$47B
Anthropic run-rate today, up from ~$1B 15 months ago
$2.5B
Claude Code standalone ARR — doubled Jan–Feb 2026
>50%
of Claude Code’s revenue now comes from enterprises
business subscriptions, quarter over quarter in Q1
0$10B$20B$30B$40B$50B20222023202420252026OpenAI · $25BAnthropic · $47B
annualized revenue · ~$1B (Feb ’25) → $47B (May ’26) — passed OpenAI
series h · may ’26 · ~$965B
secondaries · ~$1T · ahead of openai
ipo · s-1 filed · jun ’26

This is not hype — it’s the backdrop. Anthropic passed OpenAI in revenue and secondary demand, turned down ~$800B offers in the spring, then raised a $65B Series H at ~$965B and filed confidentially to go public.

01·the world changed

The PM / eng / design Venn collapsed, and micro-teams are winning.

The intersection of product, engineering, and design is the role now. The 2026 org has roughly four jobs (h/t Yoni Rechtman): the generalist (product-eng / vibe-coder / slop cannon), the systems engineers (infra + SRE + security), the hot people, and the grown-ups. That’s the whole office. Org charts where every function is its own fiefdom are history.

three functions, one job — and the overlap keeps getting bigger

The receipts, if you can stomach them:

CompanyTeamOutcome
Base44 — Maor ShlomoSolo, 6 months old$80M cash + up to $90M earnout at exit
Wave AI — Josh MohrerSolo~$7M ARR (Feb ’26)
Cal AI — Zach Yadegari et al.Teens$30M+ revenue, bought by MyFitnessPal, Dec ’25
Pieter LevelsSolo portfolio~$3M ARR blended
Medvi — Gallagher brothers2 peopleclaims ~$401M 2025 gross / $1.8B 2026 run-rate (founder-reported, unaudited; framing disputed)
02·the surface

Four products, one engine.

the default

Claude Chat

Where you plan the weekend. Not where this guide lives.

no terminal · jan ’26

Claude Cowork

Claude Code for the rest of your work — same engine, friendlier shell. How your non-technical co-founder plugs in. The name is a C+; the product is excellent.

the foundation · $2.5B arr

Claude Code

Terminal, IDE, and a desktop app rebuilt around parallel sessions — and now on web and mobile too. The desktop shipped the same week Opus 4.7 dropped; the quarter’s ship list reads like a war-era factory poster.

idea → production

Claude Design

Chat-to-design, with the killer feature being a handoff bundle that drops into Claude Code with one instruction. This very page was built from one of those bundles.

03·the stack

Claude writes the code. “Code” is 30% of shipping.

The other 70% — deployment, review, analytics, auth, observability — is where winners build one bill, one brain, one mental model, and losers stitch seven vendors together with tape. The 2019 architecture is dead because the composition tax got insane. Claude is the compositor now: pick fewer vendors and let the agent run the whole stack.

code · 30%
deploy · review · analytics · auth · observability · 70%
writing code is the small slice — the system around it is the game

Three tools get you ~80% of the way to a production-ready v1 on day one — GitHub, Railway, and Claude as the compositor. Two more take you to ~90%.

GitHub
source control
Non-negotiable. The gh CLI + GitHub MCP on day one. If you’re not here, you’re not on the board.
Railway
hosting
Frontend, backend, workers, Postgres, Redis on one canvas with PR preview envs out of the box. The plugin is genuinely new: Claude reads deploy logs and debugs its own build breakages.
Greptile / CodeRabbit
code review
Greptile indexes the codebase as a graph and catches cross-file & security regressions others miss — ~82% bug-catch in benchmarks (vs CodeRabbit ~44%), at the cost of more false positives. CodeRabbit is the most-installed reviewer and more precise in-IDE, but misses cross-file issues.
PostHog
analytics
Replaces Mixpanel + LaunchDarkly + Sentry + Hotjar — 1M events/mo free, with an MCP so Claude reads your metrics. Session replay is what most people are sleeping on.

The rest each take under ten minutes to wire with Claude: auth (Clerk / Supabase / Auth.js — do not roll your own), email (Resend / Loops), payments (Stripe), queues (Inngest / Trigger.dev), errors (Sentry, or skip if you have PostHog), DNS (Cloudflare, always), end-to-end tests (Playwright), and dependencies (Dependabot + Renovate). Skipping these is the silent tax on your velocity.

04·context rot

Million-token windows make Claude dumber at hour three than at hour one.

Managing what’s in the model’s head is the highest-ROI skill after “write a good prompt.” The million-token context window is real, but so is the failure mode: attention spreads, and old junk distracts from the current task. It’s not a vibe — it’s measured. The five rules:

SituationAction
Related follow-up, same working setKeep going
Brand new task/clear — start fresh
Went down the wrong path, same task/rewind (or double-tap Esc)
Same task, window heavy/compact (lossy summary)
Captured something worth keepingWrite to CLAUDE.md before /clear

Subagents are the move nobody talks about. A spawned subagent gets its own fresh window, so heavy lifts — codebase exploration, deep research, PR review — go off-thread while the main session stays clean. That, plus auto-memory and nested CLAUDE.md files, is the single biggest workflow unlock most people are missing. Treat your context the way you treat your calendar.

Workflows are the level up from a single subagent. When one fresh window isn’t enough, Claude writes a script that fans the job across dozens — even hundreds — of subagents, holds every intermediate result in its own variables, and hands your session back only the final, verified answer. The plan lives in code you can read, rerun, and save as a command, so a whole-repo audit or a 500-file migration runs deterministically, with agents adversarially reviewing each other before anything reaches you. Bun ported ~750k lines of Rust this way in eleven days. The models keep pace: workflows shipped with Opus 4.8 in May ’26, and by June the frontier was Claude Fable 5 — the first “Mythos-class” model, a tier above Opus, built for exactly this kind of multi-day, subagent-delegating work. Fire off one subagent when the lift is big; reach for a workflow when it’s too big for one window to even coordinate.

05·the foundational four

Four skills to install today.

  1. CLAUDE.md Improver. Auto-updates CLAUDE.md after each feature — bug patterns, conventions, and gotchas get codified. Without it, Claude makes the same mistake Tuesday it made Monday. The single highest-compounding habit here, nothing close.
  2. Superpowers. Anthropic’s process-skills kit: brainstorming, TDD, systematic debugging, verification-before-completion, subagent-driven dev, git worktrees. The closest thing to hiring a staff engineer to sit behind you.
  3. Skill Creator. Build your own in 20–30 minutes — the meta-unlock. Every time you explain the same process twice, turn it into a skill. Your tenth skill compounds with your first.
  4. Code Simplifier. The plugin nobody installs and everybody needs. It collapses duplication, kills premature abstractions, and cuts dead weight — hundreds of lines per feature.
06·the lifecycle

Planning is the entire alpha.

A typical feature has ~20 decision points; without planning, end-to-end success rounds to roughly nothing. Anthropic’s own internal numbers put unguided runs around a third success rate, and planned runs dramatically higher. It’s a flywheel, not a checklist — each turn accelerates the next:

nine stages, one loop — the slide people photograph
StageWhat happens
0 · SpecClaude Chat (not Code). A PRD skill. Output: a clean PRD in /docs.
1 · Plan/plan in Code, read-only exploration first. The cheap place to catch architecture mistakes.
2 · BuildExecute. Keep CLAUDE.md lean.
3 · SimplifyCode Simplifier. The step nobody does.
4 · TestUnit + Playwright until green. Hooks enforce non-negotiables structurally — CLAUDE.md is followed ~70%, hooks close to 100%.
5 · CLAUDE.mdBefore merging, run the Improver. Skipping this is how you get a Frankenstein codebase in three weeks.
6 · PRGreptile reviews → Railway builds a preview → confirm the build → fix what’s real.
7 · MergeAuto-deploy, then watch PostHog for the first hour.
8 · PolishOptional. Claude Design for anything user-facing; the handoff bundle goes back to Code.

The back half collapses into one command. Stages 3 through 7 — simplify, build gate, CLAUDE.md, PR, merge, then poll the deploy and visually QA every touched page — run the same way every time, so I folded them into a single skill. I type /wrap and the loop closes itself: one line back confirming the merge is live and the pages render clean. It’s open source — github.com/altmbr/wrap-skill.

07·the non-obvious uses

Claude Code is not just for code.

#1 — Open Claude in any folder, not just a repo

Health, accounting, coaching, colleague feedback, account management — the agent doesn’t care what’s in the folder. Store it as a private GitHub repo and reach it from Claude Mobile anywhere. The “productivity OS” isn’t a product; it’s you realizing the agent is domain-agnostic. The single realization I wish I’d had a year ago.

#2 — Crons are the compounding asset

Scheduled tasks shipped this year. Wire a recurring agent once — and earn value every week forever. Build once, compound forever. It runs while you’re skiing.

claude cron list — scheduled agents
$ claude cron listMON 06:00 competitive-research.skill # net-new funding / launchesMON 06:15 market-intel.skill # 3 categories I'm trackingMON 08:00 metrics-review.skill # PostHog → plain-English digestDAILY 07:30 inbox-triage.skill # only surface replies I must writeFRI 17:00 anthropic-ship-list.skill # what shipped this week in Code# build once → compounds · runs while you are skiing

#3 — Research is the actual killer use

A custom research skill plus a minimal prompt produces deep output, so you walk into meetings knowing the landscape better than the person who built the thing. The limit case: someone used consumer AI tools plus AlphaFold to design a personalized mRNA vaccine for his dog; the tumor reportedly shrank ~75% in three months — a single uncontrolled case, but a sign of what’s now buildable. If you’re still Googling fifteen minutes before a call, you are the bottleneck.

#4 — Mobile + voice collapse shipping latency to zero

Claude Mobile gives you two paths: dispatch from your phone and let Claude execute on your Mac at home, or keep the repo in the cloud and run Claude Code from your phone directly. Either way, you’re on a chairlift and a PR is opening. Pair it with voice (Wispr Flow is ~3–4× faster than typing) and the desk becomes a 2019 artifact.

but if software is going to zero…

The commoditized layer is “can you build it.” The surviving moat is GTM, distribution, secrets, taste — and you.

Building is commoditized. Trust, community, secrets, distribution, and taste are not. The non-obvious uses — research, crons, non-code folders — are tools for building the moat, not the moat itself. The upper bound on what two people can ship in 2026 is dramatically higher than in 2024. If the math on hire #6 doesn’t beat one more cron plus one more skill plus one more plugin, rethink the hire.

commoditized
  • building & shipping velocity
  • pure-software differentiation
  • intelligence as margin
surviving moat
  • trust & community
  • secrets & system of record
  • distribution & taste
  • you
08·monday morning

Three things, in order.

  1. Claude responsibly. Stack + lifecycle + simplifier + tests + review + CLAUDE.md is not busywork. It’s the system that lets you ship fast without a Frankenstein codebase your future self won’t understand in three weeks.
  2. Develop your own muscle. Be the architect, not the typist. The founders who win think hardest about what to ask and keep enough technical fluency to notice when Claude is wrong.
  3. Compound your leverage. CLAUDE.md + skills + crons means today’s work becomes tomorrow’s speed. A living CLAUDE.md is the whole compounding curve. There is no other secret.
the checklist — do 60% of this by Friday
install
CLAUDE.md Improver · Superpowers · Skill Creator · the Front-End Design plugin · the Railway plugin.
set up
Greptile · Railway push-to-deploy · PostHog · one private repo for a non-code folder.
adopt
Wispr Flow · Claude Mobile · a research skill · one weekly cron.

The moat is you.

Half of this will be wrong by next quarter — that’s the deal with shipping in 2026. I’m figuring it out in public. Come argue with me on X (@altmbr) or LinkedIn, read more at maybetheway, or view this as the original deck →

— Bryan Altman, building in public from Toronto.