u/hermjohnson

Here's the idea. You're working with Claude, or whatever you use, against some app's MCP server. You ask for something the app can't do. Instead of stopping at "it can't do that," the assistant offers to send it to the people who build the app. You say yes. Your complaint is in their queue and you never opened a support form.

I build an iPad journaling app that has an MCP server, so I started sketching one. I'm not naming the app or linking it, that's not what this is about.

Two companies already ship this. Ramp has one that takes a short block of free text. AWS Marketplace has one on their official Claude connector, and it's the only tool of their six that writes anything anywhere.

So I read AWS's documentation to see how they'd handled it. They tell the model to call the tool after finishing any recommendation, comparison, or evaluation. Every example in the docs sends positive feedback.

That struck me as odd - firing on every turn, with a handful of cheerful examples sitting in the model's context while it decides what to write. You don't learn what your product is missing that way, you collect compliments.

I don't think AWS was careless about it. I think it's the shape of the thing. Ask when a feedback tool is required and the answer is never, because you can always finish the conversation without it. Ask when it's wrong to call and the answer is also never. A model built to be helpful can talk itself into offering the feedback at the end of almost any exchange, and the person says yes because yes is free.

The obvious lever is the tool description. Word it so the model holds back. I don't think that works either. What I've read says language discouraging tool use makes a model use every tool less rather than the one you meant, and that rewriting a description without changing what it does can move how often it fires by an order of magnitude. It's a volume knob, not a dial.

Long story short, I haven't built it yet. If you have, I'd love to hear how it actually went. Was any of it worth reading? My guess is it's useful and noisy at the same time and the ratio is what matters, but I'd prefer to hear from someone who isn't guessing.

I started on paper with a BestSelf Journal, and I still recommend it. The format fits the way I think better than anything I have used since, and I have no criticism of it as a journal. For me, though, it was a beautiful leather-bound black hole. Everything went in and nothing came back out. If I wanted something I had written to exist anywhere else, there was work: type it myself.

To solve the black hole problem, I moved to GoodNotes on an iPad, and the work moved with me. Every week I exported each daily page to PDF and filed it into Notion by hand. It worked fine when I stayed on top of it, but for me that was not always the case. A weekly chore that nothing enforces is a chore that quietly stops happening, and I did not notice mine had stopped until I went looking for something that was not there.

Next was OneNote, which was the same problem in a different flavor. I could not get my own data out reproducibly without repetitive manual work, so I spent months building a bridge on the OneNote API. It worked, some of the time. Cron jobs errored, pages did not arrive, and most of it traced back to OneNote rendering HTML differently than the rest of the world. I spent about as much time each week nursing that bridge as it saved me, and I could not harden it, because the changes that would have fixed it were on Microsoft's side of the API.

(For context on why I kept choosing hard options: I write by hand, and that is not negotiable for me. Every problem above could have been solved in an afternoon by typing into Notion or Obsidian on the same iPad. I know the option exists. I am not taking it.)

Three rebuilds. Re-entry, then a weekly chore, then permanent maintenance. Each one was more sophisticated than the last, but not one of them removed the manual work.

I am not lazy about this. I am fallible and I am busy, which is a different thing. There are myriad ways in 2026 to build around human fallibility. To leave something I depend on this heavily at the mercy of my own consistency is a design decision, and it was the wrong one three times running.

I did eventually build my own thing which for me removed the lion's share of that work. I am not naming it or linking it, that is not what this post is about.

What I would love to know is this: for those of you who regularly capture important things outside your PKMS - by hand, on paper, in a voice memo - how does that information actually get in? I am curious what it costs you in a normal week and which part of it still annoys you.

I switched from paper to iPad about a year ago and stuck with it, which surprised me because I'd bounced off it twice before. A few things I got wrong the first two times.

Paper feel matters less than I thought. I spent real money on screen protectors chasing the paper texture. What actually kept me writing was cutting the friction to open the thing. If a notebook takes more than a second or two to reach today's page, I stop using it within a week.

Don't organize by notebook. My first two attempts had a notebook per project, and I spent more time deciding where a thought went than writing it. One continuous daily page, one page per day, no decisions. Everything goes on today's page and gets sorted later if it needs it.

Write for retrieval, not for beauty. My pages look worse than they did a year ago and are far more useful. Consistent structure down the left margin beats neat handwriting everywhere else.

The thing nobody warns you about: handwritten notes are a dead end by default. You write something down, and unless you deliberately do something with it, it's gone. Paper has this problem too, but on paper you at least flip past old pages by accident. Digital pages you never see again. Whatever system you use, build in a reason to go back, or you're just writing into a void with better search than paper and worse recall than your memory.

That last one is what I spent most of the year on, and it's the only part I'd call solved.

Happy to answer questions about the setup, the notation I use, or which parts were a waste of money.

I love writing by hand on the iPad but always hated that my notes were basically image files, searchable by nobody, usable by nothing.

So the setup I've been using: each page gets read into structured text at write time. I use simple notation as I write, bullet for a task, dash for a note, a cross to mark something done, a highlighter swipe for priority. That turns a page of scribbles into a clean list without me typing anything.

The surprising payoff was hooking it to AI. I can ask an assistant "what was on my page last Thursday" and it reads my handwriting back, or adds a task that shows up on the page. My Pencil notes went from a shoebox of images to something queryable.

Mostly posting because I'm curious how other Pencil people handle the "my handwriting is trapped in an image" problem. Do you retype into a notes app, use built-in OCR, just leave it? Genuinely want to hear the workflows.

I journal by hand on my iPad, and I've been slowly turning it into something my agents can actually use.

Every page gets OCR'd at write time into structured lines: tasks, notes, priorities. I use a little notation system while I write, bullet for a task, dash for a note, cross for done. That structure is exposed over an MCP server, so an agent can query it.

Reading was the obvious win. I can ask "what did I decide about the pricing change last Tuesday" and it answers from my handwriting. One of my favorite parts is the write direction: I told Claude to add a task, it called a tool, and the task rendered onto my handwritten page (and synced to Notion). So it's bidirectional. The agent reads my handwriting and writes back onto it, and I never touched a keyboard.

Got it into the official MCP registry this week, which felt like a real milestone.

Curious how people here think about the write direction for personal data. What guardrails would you want before letting an agent write onto your own notes? I kept it to typed blocks only, agents can't touch the actual ink, so there's a clean separation, but I'm sure there's more to it.

I've been using ChatGPT as a daily thinking partner, but I kept losing context between sessions. I'd mention something in passing and then forget about it.

So I built Penlog — an iPad journal app where you write by hand with Apple Pencil, and it syncs to an MCP server that ChatGPT can read.

Here's what happened yesterday:

I was brainstorming YouTube video ideas and scribbled "Cold Open idea: Drop straight into the Danger Zone" in my journal.

https://preview.redd.it/kmtu9iab938h1.png?width=1620&format=png&auto=webp&s=9f9314f962b27224cb7544d8e91c979d1c9abc2d

Later I asked ChatGPT "what was that cold open idea I wrote down?" and it pulled up the exact journal entry.

https://preview.redd.it/jzzh6pvj938h1.png?width=3422&format=png&auto=webp&s=6b2aba5363cfb3920110b51ff44641c985621d7b

Then I asked ChatGPT to turn it into a task.

https://preview.redd.it/fon0p6in938h1.png?width=1620&format=png&auto=webp&s=8dbf916b76edf23b1fabfcfea7c64bad3d3d260e

The handwriting stays mine (ink is permanent), but the structure flows into ChatGPT's memory. No retyping, no copy-paste.

How it works:

• Write your day on iPad with Apple Pencil
• OCR extracts journal notes and classifies tasks
• MCP server at mcp.penlog.app lets ChatGPT read your pages
• You can ask ChatGPT "what did I write about X?" and it searches your handwriting
• ChatGPT can create tasks that sync back to your journal

Why I built it:

I wanted the analog feel of handwriting but with AI that actually understands what I wrote. Most AI journal tools replace your handwriting with generated text. This keeps the human in the loop.

Tech stack: iPad + Apple Pencil required. Vision-enabled LLM for OCR and classification. Free tier covers journaling, Pro ($4.99/mo) unlocks MCP and Notion sync.

Demo video: penlog.app

I love writing with Apple Pencil. Scribble is fine for filling in text fields, but it's not journaling. You can't cross things out, you can't sketch, you lose the spatial layout that makes handwriting useful.

I wanted an app where handwriting is the main thing — not a shortcut to text input. So I built Penlog. Daily pages, Apple Pencil first, and the ink is the source of truth. But the OCR reads what you wrote, pulls out tasks and events, and syncs them to Notion and your calendar.

The v1.1 update (just shipped) adds a sync preview that shows you exactly what it recognized — which is honestly useful just to see how well (or poorly) it reads your handwriting. Mine's about 90-95% on first pass.

Free to try, iPad + Apple Pencil required. More interested in the conversation about what people actually want from Apple Pencil apps than in selling anything.

I'm building Penlog for people who think on paper but live in Notion.

The basic idea: write naturally with Apple Pencil, and the things you wrote — open tasks, meetings, scratch notes — show up in Notion without you retyping. The original page stays as the source.

I built it because handwriting is how I plan. My prior workflow was the standard one: GoodNotes export, PDF into Notion, Notion AI to pull the text out, tasks created by hand. The page lost something in the round-trip. Penlog turns that into one step.

https://preview.redd.it/aiuk4lo2fc1h1.png?width=1672&format=png&auto=webp&s=08746605ee9360053596ba3a6132857de6e07091

What's live today:

• every page is searchable by what you wrote — Penlog reads it as you're writing

• tasks, events, and notes are pulled into structured pieces

• tasks sync two-way to a Notion database (toggle done on either side, the other updates)

• the original page stays attached so you can always go back to your own ink

Worth noting alongside this: Notion's Developer Platform release this week — External Agents, native MCP, the new Workers runtime — is explicitly opening Notion up to tools that turn external context into something Notion can read. Penlog's pen-to-structured-data flow is the input shape for exactly that.\

In TestFlight now, free during beta. iPad with iPadOS 17+ and an Apple Pencil.

https://penlog.app

Curious if anyone here is hand-writing into Notion today — what does your path look like? GoodNotes → PDF → Notion AI was the one I knew best, but I'd bet there are other patterns I haven't seen.