for long file writing and tool call

### Checks

- [x] I have searched [github.com/aws/amazon-q-developer-cli/issues](https://github.com/aws/amazon-q-developer-cli/issues?q=) and there are no duplicates of my issue
- [x] I have run `q doctor` in the affected terminal session
- [x] I have run `q restart` and replicated the issue again

### Operating system

macOS 26.5.2 (25F84)

### Expected behaviour

An unexpected error occurred during the response stream:
CodewhispererChatResponseStream(DispatchFailure(DispatchFailure { source: ConnectorError { kind: Io, source:
reqwest::Error { kind: Body, source: reqwest::Error { kind: Body, source: hyper::Error(Body, Custom { kind:
InvalidData, error: DecryptError }) } }, connection: Unknown } })) (request_id:
58d3656c-5bf2-4125-97c0-5983e9a955e8)

### Actual behaviour

I just call Kiro to continue the next task then it just show up not reconnecting action, this error shows up directly

### Steps to reproduce

_No response_

### Environment

```yaml

[q-details]
version = "2.13.0"
hash = "3afe42f288dc2f00504f51f904e134dafa58e7f2"
date = "2026-07-16T19:08:07.31555Z (6d ago)"
variant = "full"

[system-info]
os = "macOS 26.5.2 (25F84)"
chip = "Apple M3 Pro"
total-cores = 11
memory = "18.00 GB"

[environment]
cwd = "/Users/USER/MyProject/AKG"
cli-path = "/Users/USER/MyProject/AKG"
os = "Mac"
shell-path = "/bin/zsh"
shell-version = "5.9"
terminal = "Ghostty"
install-method = "unknown"

[env-vars]
PATH = "/Users/USER/.local/bin:/Users/USER/.local/bin:/Users/USER/.grok/bin:/Users/USER/.local/bin:/Users/USER/.local/bin:/opt/homebrew/bin:/opt/homebrew/sbin:/usr/local/bin:/System/Cryptexes/App/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/local/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/appleinternal/bin:/pkg/env/global/bin:/usr/local/go/bin:/Applications/Ghostty.app/Contents/MacOS:/Users/USER/.local/bin:/Users/USER/Library/Application Support/JetBrains/Toolbox/scripts:/Users/USER/.lmstudio/bin"
QTERM_SESSION_ID = "6737e3a890d5479e8280c99f9c9ec067"
Q_SET_PARENT_CHECK = "1"
Q_TERM = "2.13.0"
SHELL = "/bin/zsh"
TERM = "xterm-ghostty"
__CFBundleIdentifier = "com.mitchellh.ghostty"
```

Start by reproducing the response-stream failure during long file writing or a tool call on the reported macOS environment, using `q doctor` and `q restart` as already noted. Trace the `DecryptError` and reconnect behavior; done means the next task reconnects successfully without the unexpected stream error.

Written by the indexing model from the issue text.