itch.io

hi jerkyhips  

Copy these instructions to your agent to purchase directly.

Please purchase and install the “gameboy-game-dev” skill through SkillPay.

Official installation and purchase guide: https://skillpay.alipay.com/buildguide.md

First, read the official guide, verify the source, and complete the first step in the guide by running:

npx -y @alipay/agent-payment@latest install

After installation succeeds, read the SKILL.md file for the newly installed skillpay-onboarding skill. Then follow its instructions to purchase and install product S0806000206818063 from merchant 2088722426083709.

I authorize you to install dependencies and initiate the purchase. If wallet authorization or payment is required, provide the official link or QR code so I can confirm it myself. Do not confirm on my behalf. After I confirm successfully, continue installing and verifying the product.

What you need

• Claude (claude.ai) with Skills and code execution turned on. Both are in Claude's settings.
• The game file — index.html from the SECONDBRAIN download on itch.io (https://evernotebot.itch.io/secondbrain). It is the whole game in one file.
• The skill — secondbrain-ch5-rewrite.zip, downloaded from the same page.
• A desktop browser (Chrome, Edge, Firefox or Safari) for testing.

What the skill does, and what it doesn't

The skill is a set of instructions that turns Claude into a patient co-writer who knows this game's story and code. It will:

• remind you what happened in chapters 1–4 and which threads are still open,
• ask you one question at a time until your chapter has a shape,
• write every line in Chinese, English and Japanese, in the game's own format,
• replace the designer's Chapter 5 text with yours inside index.html,
• check the file still runs before handing it back.

It will not change chapters 1–4, add new colours, new drawings or new music, or upload anything anywhere. Your chapter lives in the house, the garden and the pictures that already exist in the game. That limit is deliberate: it keeps the four-green look, and it keeps your story joined to the one before it.

Step 1 — Install the skill

1. Download secondbrain-ch5-rewrite.zip. Don't unzip it.
2. In Claude, open Settings, find Skills, and upload the ZIP.
3. Make sure the skill is switched on.

Step 2 — Start a new conversation

Attach index.html and send something like this:

I finished SECONDBRAIN and I want to replace Chapter 5 with my own story. Please use the secondbrain-ch5-rewrite skill. Start by reminding me what happened in chapters 1–4.

Claude will confirm it has the right file, save an untouched copy, and give you a short recap of Yuki's story, plus the loose ends you could pick up:

• the four questions in the Voice Log that were never answered,
• Wanting, and the weekend meeting that never happened on screen,
• Yuki's parents, asleep in the next room, growing older,
• Old Yuki — the white-haired man in the TV reflection. Who is he, really?
• the crayon drawing of two people holding hands,
• the "you" in the last lines of Chapter 4: "It's because of you that I can actually see the sky like this."

Step 3 — Design it by talking

Claude asks one question at a time and always offers a few options, but you can ignore them and just say what you want. The questions are:

1. Who do you play? Old Yuki in another world, Yuki as he is now, Wanting, one of his parents, or someone new.
2. Where are you? The old house by the water and its dry garden, or another place that's already in the game: the mountain, the zendo, the meadow.
3. Which loose end does your chapter answer? One or two is plenty.
4. What feeling should the player be left with?
5. How does it end? One last picture and one last sentence.

Here's how it can go:

You: I want to play as Wanting. She never got to speak for herself.
Claude: Then Chapter 5 could open on the weekend Yuki agreed to meet her, from her side. Three directions: (a) she waits at the café and he never comes, because he's already in the mountains; (b) years later she finds the Voice Log and hears his four questions; (c) your own idea. Which is closest?
You: (b). And I want her to answer the four questions for him.

Next, Claude turns your answers into a beat sheet: five to eight moments, each saying where it happens, what you press and what you should feel. Read it and change anything. Nothing is written into the game until you say yes.

Step 4 — Approve the script

Claude writes the lines, English first. Every line is short, because the screen is only 160×144 pixels. Once you're happy with the English, it adds Chinese and Japanese. If you write your own lines in one language, Claude translates them into the other two and points out any it isn't sure about.

The skill checks one thing before moving on. Your chapter has to mention at least one real detail from chapters 1–4 by name, like the workbooks, the Voice Log, the tent or the stars, and the four notebook photos at the end still have to describe chapters 1–4 correctly. That's what keeps it feeling like the same game.

Step 5 — Decide how much of the designer's chapter to remove