failed to retrieve MCP settings — MCP disabled

### 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 26.4.1 (25E253)

### Expected behaviour

**Expected Behavior:**

When running kiro-cli, MCP settings should be successfully retrieved and MCP servers should be accessible and available for use during the session. No "failed to retrieve MCP settings" error should appear, and tools provided by configured MCP servers should be callable.

### Actual behaviour

**Actual Behavior:**

When running kiro-cli, the error message "failed to retrieve MCP settings — MCP disabled" is displayed and MCP servers are not accessible. Tools provided by configured MCP servers cannot be used during the session.

I've tried with different mcp.json files and none seem to resolve the issue. This issue began spontaniously after version **2.2.0**

### Steps to reproduce

**Actual Behavior:**

When running kiro-cli, the error message "failed to retrieve MCP settings — MCP disabled" is displayed and MCP servers are not accessible. Tools provided by configured MCP servers cannot be used during the session.

### Environment

```yaml

[q-details]
version = "2.2.2"
hash = "7b8bf7d8e854fbf3b4071b047526b3dd851b2563"
date = "2026-05-05T23:09:32.804354Z (2d ago)"
variant = "full"

[system-info]
os = "macOS 26.4.1 (25E253)"
chip = "Apple M4 Pro"
total-cores = 14
memory = "48.00 GB"

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

[env-vars]
KIRO_API_KEY = "ksk_qXDmXOtg5Rz3XnkbTuMjZnkucD7VHBzk"
PATH = "/opt/homebrew/opt/grep/libexec/gnubin:/Users/USER/Library/Android/sdk/platform-tools:/Users/USER/.npm-global/bin:/Users/USER/.npm-global/bin:/Users/USER/.nvm/versions/node/v24.14.1/bin:/Users/USER/.claude/local/bin:/Users/USER/.bun/bin:/Users/USER/.local/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/pkg/env/active/bin:/opt/pmk/env/global/bin:/Library/Apple/usr/bin:/opt/homebrew/bin:/Users/USER/.local/bin"
QTERM_SESSION_ID = "a5dac6d75cf04f0d993a048903e243f7"
Q_SET_PARENT_CHECK = "1"
Q_TERM = "2.2.2"
SHELL = "/bin/zsh"
TERM = "xterm-256color"
__CFBundleIdentifier = "co.zeit.hyper"
```

**Sample mcp.json example**:
```json
{
"mcpServers": {
"aws-docs": {
"command": "uvx",
"args": [
"awslabs.aws-documentation-mcp-server@latest"
],
"env": {
"FASTMCP_LOG_LEVEL": "ERROR"
},
"disabled": false,
"autoApprove": [
"search_documentation",
"read_documentation"
]
},
"chrome-devtools": {
"command": "npx",
"args": [
"-y",
"chrome-devtools-mcp@latest",
"--browser-url=http://127.0.0.1:9222"
],
"autoApprove": [
"new_page",
"take_snapshot",
"click"
]
}
}
}
```