# Empty your head into the chat

> Paste a brain dump into ChatGPT or Claude, connected to Reassign over MCP, and it places each line on your real day. Every change comes with an undo.

Published: 2026-09-01. Updated: 2026-10-02. Canonical: https://reassign.ai/resources/brain-dump-with-ai

The brain dump works because it gets the noise out of your head. Write down everything rattling around in there, do not sort it, do not rank it, just empty the buffer. Standard advice for [ADHD](https://reassign.ai/resources/circular-planner-for-adhd), and it earns its place.

Then the dump ends, and you are looking at a list. Fourteen scrappy lines that are not a day. Turning them into actual hours is the slow, fiddly part, and it is the part that gets skipped. So the dump becomes another document you do not open.

You already have a chat window open. Hand it the dump.

Reassign is an [**MCP server**](https://reassign.ai/mcp), an open standard, not a Claude-only thing. [ChatGPT](https://reassign.ai/resources/planning-your-day-with-chatgpt) and [Claude](https://reassign.ai/resources/planning-your-day-with-claude) both speak it. Connect one to your real day, paste the whole dump, and it reads your schedule and places each line where it fits. You watch every block land on the [dial](https://reassign.ai/resources/what-is-a-chronodex), and each change comes with an undo if it is wrong.

## Should you brain dump in the app or in the chat?

Reassign has a braindump built in. Press ⌘K, type `/braindump`, empty your head one line per row, and get back an editable plan. If the list is on paper, send a photo in /braindump. Check What I read against your page and correct the cards before applying them. It is add-only by design, so it can never delete anything. That is [the in-app way, and it has its own walkthrough](https://reassign.ai/resources/brain-dump-to-schedule).

This post is the other way: the chat you already live in. If ChatGPT or Claude is where you think out loud, you do not need to switch apps to plan. You paste the dump into the conversation, and the assistant does the placing over MCP. The trade is simple. The in-app braindump is the stricter, add-only tool. The chat plans with the full tool set, so it can also move and clear things when you ask. MCP writes apply immediately by default and return an undo token. For a time window, the assistant reads free slots and chooses a start and end before writing.

## How do I connect ChatGPT or Claude to my day?

MCP is a small, open standard for letting an assistant talk to a tool. Reassign speaks it; [so do a handful of other planners](https://reassign.ai/resources/day-planners-with-an-mcp-server). You connect once:

- **ChatGPT:** turn on Developer Mode under **Settings → Apps → Advanced settings**, then open **Settings → Connectors**, click **Create**, and paste Reassign's MCP URL, `https://reassign.app/api/mcp`. Developer Mode and custom connectors are on the paid plans (Plus, Pro, Business, Enterprise), not the free tier.
- **Claude:** add Reassign as a custom connector, or run one command in Claude Code, pointed at the same URL.

Either way you sign in once with OAuth and pick your scopes: `events:read`, `events:write`, or both. Menu names move; the URL does not. The [connect page](https://reassign.ai/connect) has the copy-paste strings for both.

## Paste the dump, watch it get placed

The first thing the assistant does is look. Before it suggests anything, it calls `get_schedule`, which hands back the current time, today's events, the honest open slots between them, and your [areas and activity types](https://reassign.ai/resources/color-coding-your-calendar). It plans from your real day, not a template.

Then you dump:

> **You:** Here's my brain, show me a plan before writing anything. Ask about times I have not pinned down. Dentist Tuesday morning. 90 minutes on the deck for the Friday review. Gym at 6. Call mum back. Reply to the landlord. Deep work block tomorrow, ideally before lunch. Buy a birthday present sometime this week.

The assistant reads the lot at once and comes back with a plan, not a lecture:

> **The AI:** Here is a draft: gym at 6 tonight, deep work 9:30 to 11:00 tomorrow before your standup, review prep 2:00 to 3:30 in a free slot before Friday. What time is the dentist on Tuesday? "Call mum", "reply to landlord" and "buy a present" can go in your Inbox. Want me to apply those blocks and Inbox items?

Say yes and each block lands on the dial, area colour and pattern already right, and you watch it arrive. Under the hood it is the same short vocabulary the app uses by hand:

```
get_schedule      → look at the day, with its open slots
write_events      → create, move, or reshape blocks in a batch
manage_inbox      → add a timeless line to the Inbox
undo_changes      → take a recent change back
```

## The lines with no time

Most dumps are half wishes. "Call mum back" is a real task with no hour attached, and a schedule that invents one is worse than no schedule. So those lines do not get forced onto the clock. They go to your [Inbox](https://reassign.ai/features/inbox), the tray for blocks with no time yet, and wait there until you drag them onto a day with room.

And when a line is genuinely ambiguous, the assistant asks instead of guessing. "Buy a birthday present sometime this week" comes back as a question with two or three real openings already worked out. You pick one, or leave it in the Inbox. Nothing is guessed into your day.

## Can the AI change my day without asking?

An assistant that can edit your schedule raises the obvious question: what stops it from wrecking it?

**MCP writes apply by default when the assistant calls the tool.** To review the plan first, explicitly ask the assistant to show its proposed times before writing, as in the example above. It reads `freeSlots` from `get_schedule` and creates timed blocks with `write_events`. That tool also accepts optional `dryRun: true` to check its operations without writing: valid ones return `skipped`, and failures include their usual errors. The check reserves no time and returns no undo token. After you approve, the assistant calls again without the flag to apply the changes. A 30-minute undo window can reverse an applied change.

Over the chat, an assistant with write access *can* move, swap, and clear blocks. Your client’s approval controls determine which tool calls need your confirmation. A read-only OAuth grant prevents writes altogether. If you want a tool that physically cannot delete, use the in-app braindump. If you want the chat to plan the whole day and reshape it later, this is that.

For a voice-first app that schedules what you say without a review step, see [the Voiset alternative](https://reassign.ai/resources/voiset-alternative).

## ChatGPT or Claude?

Same MCP server, same tools, same dial. The only thing that differs is the connection step: ChatGPT uses Developer Mode custom connectors, Claude uses its own connector setup or Claude Code. Bring whichever chat you already have open. The full walkthroughs live in their own posts, [planning your day with ChatGPT](https://reassign.ai/resources/planning-your-day-with-chatgpt) and [planning your day with Claude](https://reassign.ai/resources/planning-your-day-with-claude), and the honest version of the bigger question is [can AI plan your day](https://reassign.ai/resources/can-ai-plan-your-day).

To do it yourself, three steps:

1. **Connect the chat to Reassign.** Add it as a custom connector in ChatGPT (Developer Mode) or Claude, pointed at `https://reassign.app/api/mcp`.
2. **Paste the whole dump.** One thought per line. The assistant reads your real day first, then proposes where each line goes.
3. **Approve what lands.** Ask the assistant to show the proposed times before writing. Adjust or drop any of them, then ask it to apply the plan. Writes apply immediately by default with an undo token.

So the loop is short. Empty your head into the chat. It reads your real day, places what has a time, parks what does not, and asks about the rest. You approve, and the list you could not face becomes a day you can see.

Connect Reassign from the [MCP page](https://reassign.ai/mcp), then paste your next brain dump into the chat and say: *"Sort this out against my real day. Show me the plan before writing, and ask me about anything you are not sure of."*

## FAQ

### Can ChatGPT organise a brain dump into a schedule?

Yes, if it can see your real day. Connected to Reassign over MCP, ChatGPT reads your actual schedule, then places the timed lines from your dump as blocks and parks the timeless ones. Asked cold, with no calendar access, it writes a generic timetable that knows nothing about your commitments. The difference is access, not model quality. Reassign connects to ChatGPT as a custom connector in Developer Mode on its paid plans.

### How is this different from Reassign's built-in braindump?

Same idea, two surfaces. The built-in braindump lives in the command palette: press Cmd+K, type /braindump, and dump one thought per line, or send a photo of a paper list. It is add-only by design, so it can never delete or clear anything. This post is about doing it from the chat you already have open, ChatGPT or Claude, over MCP. There the assistant plans with the full tool set, so it can move and delete when you ask. The assistant reads free slots and creates blocks with write_events. Writes apply immediately by default with an undo token; ask it to show the plan first if you want a review.

### Which lines from a dump become blocks?

A line with a time becomes a block on the day it names: gym at 6, call the dentist Tuesday morning. A line with no time waits in your Inbox until there is room for it. A line the assistant cannot place without guessing comes back as a question with two or three concrete options, so nothing is invented.

### Will the AI delete or overwrite my day?

Reassign applies a write as soon as the assistant calls the tool. Ask it to show you its plan first and use your client’s approval controls if you want a review before it writes. There is no separate MCP confirmation step. A 30-minute undo window can reverse an applied change. If you want the strictest guarantee, the built-in braindump in the command palette is add-only: it has no way to remove anything, however the request is phrased.

### Do I need to sort the dump first?

No. That is the point of a brain dump: get it out of your head without ranking or sorting as you go. The assistant reads the whole dump at once and does the sorting against your real schedule, so a line with a time lands where the time says and a loose to-do waits in the Inbox.

### Is planning a brain dump over MCP free?

The dial and deterministic one-sentence quick create are included in Pro. Saving changes requires internet. Planning over MCP with ChatGPT or Claude is part of Reassign Pro: $14 a month or $120 a year, with a 7-day Pro trial and no card to start. The built-in braindump in the command palette is Pro too.

### Can it plan around my Google Calendar?

Yes. Reassign Pro syncs two ways with Google Calendar, Outlook, Todoist, Google Tasks, Microsoft To Do, Linear, and TickTick, so meetings and timed tasks are on the day the assistant reads, while unscheduled tasks wait in the Inbox. It places your dump around your real meetings instead of on top of them, and an approved change flows back to the calendar it came from.

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More from Reassign, a 24-hour circular day planner: https://reassign.ai/llms.txt