Not able to read image files

### 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 26.3.1 (25D2128)

### Expected behaviour

After allowing permission for reading file it should start reading the files.

### Actual behaviour

Getting this error while allowing access to read files : request_id: 7695f6e4-f4f7-4f23-b77d-7b1690dbd3a5, error: An unknown error occurred: ValidationException, below is the thing which is occuring.

```
go through the EADR_Steps.xlsx and EADRWorkflow.png and understand the project details, and also go through the xml and typescript files of EADR

Let me read all the EADR files systematically.
● Read /Volumes/workplace/AndonOrca/src/RBSAndonOrcaDefinitionsWorkflowDefinitions/configuration/orca-definitions/type-scripts/EADRWorkflow.png
● Read /Volumes/workplace/AndonOrca/src/RBSAndonOrcaDefinitionsWorkflowDefinitions/configuration/orca-definitions/herd-graph/prod-na/EADR_TEST.xml

▸ Credits: 0.22 • Time: 13s
● request_id: fd4ea913-b18a-45e3-bcdd-51eb8a0c3f99, error: An unknown error occurred: ValidationException
```

### Steps to reproduce

just give this prompt to read files and then it would ask to allow permissions for reading, after that it is failing.

### Environment

```yaml

[q-details]
version = "1.29.8"
hash = "7da9a1d007700e5e83b9d83e0d9d1f83dcdd7cd1"
date = "2026-04-11T22:35:02.300974Z (2d ago)"
variant = "full"

[system-info]
os = "macOS 26.3.1 (25D2128)"
chip = "Apple M4"
total-cores = 10
memory = "16.00 GB"

[environment]
cwd = "/Volumes/workplace/AndonOrca/src/RBSAndonOrcaDefinitionsWorkflowDefinitions"
cli-path = "/Volumes/workplace/AndonOrca/src/RBSAndonOrcaDefinitionsWorkflowDefinitions"
os = "Mac"
shell-path = "/bin/zsh"
shell-version = "5.9"
terminal = "IDEA Ultimate"
install-method = "unknown"

[env-vars]
PATH = "/Users/USER/.antigravity/antigravity/bin:/Users/USER/.local/share/mise/installs/node/22.18.0/bin:/Users/USER/.local/share/mise/installs/python/3.12.11/bin:/Users/USER/.local/share/mise/installs/python/3.11.13/bin:/Users/USER/.local/share/mise/installs/python/3.10.18/bin:/Users/USER/.local/share/mise/installs/python/3.9.23/bin:/Users/USER/.local/share/mise/installs/python/3.8.20/bin:/opt/homebrew/bin:/opt/homebrew/sbin:/Users/USER/.toolbox/bin:/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:/opt/pmk/env/global/bin:/Users/USER/.cargo/bin:/Users/USER/.local/bin:/Applications/Visual Studio Code.app/Contents/Resources/app/bin:/Users/USER/Library/Application Support/JetBrains/Toolbox/scripts"
PROCESS_LAUNCHED_BY_Q = "1"
Q_SET_PARENT_CHECK = "1"
SHELL = "/bin/zsh"
TERM = "xterm-256color"
__CFBundleIdentifier = "com.jetbrains.intellij"
```