[BUG]

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Bug: "Prompt too long" error when sending short messages in Dispatch

What's wrong:
Dispatching any message — even a single word like "test" — returns a "prompt too long" error immediately.

Steps to reproduce:

1. Open Claude mobile app
2. Navigate to Dispatch
3. Type a short message (e.g. "test")
4. Send
5. Receive "prompt too long" error

Expected behavior:
Short messages should send and process normally.

Actual behavior:
Error: "prompt too long" — even with a 1-word message.

My theory:
The persistent conversation thread has accumulated enough history that the context is already at or near the token limit before my new message is even added. Since there's no way to start a fresh thread, the thread is essentially unusable.

Platform: iOS / Claude mobile app
Plan: Pro
Latest app version: Yes

What Should Happen?

Bug: "Prompt too long" error when sending short messages in Dispatch

What's wrong:
Dispatching any message — even a single word like "test" — returns a "prompt too long" error immediately.

Steps to reproduce:

1. Open Claude mobile app
2. Navigate to Dispatch
3. Type a short message (e.g. "test")
4. Send
5. Receive "prompt too long" error

Expected behavior:
Short messages should send and process normally.

Actual behavior:
Error: "prompt too long" — even with a 1-word message.

My theory:
The persistent conversation thread has accumulated enough history that the context is already at or near the token limit before my new message is even added. Since there's no way to start a fresh thread, the thread is essentially unusable.

Platform: iOS / Claude mobile app
Plan: Pro
Latest app version: Yes

Error Messages/Logs

**Bug: "Prompt too long" error when sending short messages in Dispatch**

**What's wrong:**
Dispatching any message — even a single word like "test" — returns a "prompt too long" error immediately.

**Steps to reproduce:**
1. Open Claude mobile app
2. Navigate to Dispatch
3. Type a short message (e.g. "test")
4. Send
5. Receive "prompt too long" error

**Expected behavior:**
Short messages should send and process normally.

**Actual behavior:**
Error: "prompt too long" — even with a 1-word message.

**My theory:**
The persistent conversation thread has accumulated enough history that the context is already at or near the token limit before my new message is even added. Since there's no way to start a fresh thread, the thread is essentially unusable.

**Platform:** iOS / Claude mobile app
**Plan:** Pro
**Latest app version:** Yes

Steps to Reproduce

Bug: "Prompt too long" error when sending short messages in Dispatch

What's wrong:
Dispatching any message — even a single word like "test" — returns a "prompt too long" error immediately.

Steps to reproduce:

1. Open Claude mobile app
2. Navigate to Dispatch
3. Type a short message (e.g. "test")
4. Send
5. Receive "prompt too long" error

Expected behavior:
Short messages should send and process normally.

Actual behavior:
Error: "prompt too long" — even with a 1-word message.

My theory:
The persistent conversation thread has accumulated enough history that the context is already at or near the token limit before my new message is even added. Since there's no way to start a fresh thread, the thread is essentially unusable.

Platform: iOS / Claude mobile app
Plan: Pro
Latest app version: Yes

Claude Model

Not sure / Multiple models

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

?

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Other

Additional Information

_No response_