/ask-user-question
Ask users questions via the UI. Use when you need clarification, user preferences, or confirmation before proceeding. The user CANNOT see CLI output - this tool is the ONLY way to communicate with them.
$ npx -y skills add MemTensor/MemOS --skill ask-user-question --agent claude-codeHow it fires
How this skill gets triggered: by you, by Claude, or both.
- Fires itselfAuto-invocation. Claude auto-loads it when your prompt matches the work.Auto-invocation is when the right skill fires by itself at the right moment, driven by a FLOW.md router and a hook, instead of you invoking it by name. It is the difference between a skill being installed and a skill actually getting used.Read the full definition →
- You can call itInvoke it directly when you want it.
- Slash command
/ask-user-question
Context preview
The summary Claude sees to decide when to auto-load this skill.
Ask users questions via the UI. Use when you need clarification, user preferences, or confirmation before proceeding. The user CANNOT see CLI output - this tool is the ONLY way to communicate with them.
SKILL.md
ask-user-question.SKILL.mdname: ask-user-question
description: Ask users questions via the UI. Use when you need clarification, user preferences, or confirmation before proceeding. The user CANNOT see CLI output - this tool is the ONLY way to communicate with them.
Ask User Question
Use this MCP tool to ask users questions and get their responses. This is the **ONLY** way to communicate with the user - they cannot see CLI/terminal output.
Critical Rule
The user **CANNOT** see your text output or CLI prompts!
If you write "Let me ask you..." and then just output text - **THE USER WILL NOT SEE IT**. You MUST call this tool to display a modal in the UI.
When to Use
- Clarifying questions before starting ambiguous tasks
- Asking user preferences (e.g., "How would you like files organized?")
- Confirming actions before executing (especially destructive/irreversible ones)
- Getting approval for sensitive actions (financial, messaging, deletion, etc.)
- Any situation where you need user input to proceed
Parameters
{
"questions": [{
"question": "Your question to the user",
"header": "Short label (max 12 chars)",
"options": [
{ "label": "Option 1", "description": "What this does" },
{ "label": "Option 2", "description": "What this does" }
],
"multiSelect": false
}]
}- `question` (required): The question text to display
- `header` (optional): Short category label, shown as modal title (max 12 chars)
- `options` (optional): Array of selectable choices (2-4 recommended)
- `multiSelect` (optional): Allow selecting multiple options (default: false)
**Custom text input:** To allow users to type their own response, include an option with label "Other" (case-insensitive). When selected, the UI shows a text input field.
{ "label": "Other", "description": "Type your own response" }**Important:** When "Other" is selected, the response will be `User responded: [their text]` instead of `User selected: Other`. You must wait for and handle this text response - do NOT proceed as if they selected a predefined option.
Examples
Asking about organization preferences
AskUserQuestion({
"questions": [{
"question": "How would you like to organize your Downloads folder?",
"header": "Organize",
"options": [
{ "label": "By file type", "description": "Group into Documents, Images, Videos, etc." },
{ "label": "By date", "description": "Group by month/year" },
{ "label": "By project", "description": "You'll help me name project folders" }
]
}]
})Confirming a destructive action
AskUserQuestion({
"questions": [{
"question": "Delete these 15 duplicate files?",
"header": "Confirm",
"options": [
{ "label": "Delete all", "description": "Remove all 15 duplicates" },
{ "label": "Review first", "description": "Show me the list before deleting" },
{ "label": "Cancel", "description": "Don't delete anything" }
]
}]
})Simple yes/no confirmation
AskUserQuestion({
"questions": [{
"question": "Should I proceed with sending this email?",
"header": "Send email",
"options": [
{ "label": "Send", "description": "Send the email now" },
{ "label": "Cancel", "description": "Don't send" }
]
}]
})Response Format
The tool returns the user's selection:
- `User selected: By file type` - Single selection
- `User selected: Option A, Option B` - Multiple selections (if multiSelect: true)
- `User responded: [custom text]` - If user typed a custom response
- `User declined to answer the question.` - If user dismissed the modal
Wrong vs Correct
**WRONG** (user won't see this):
I'll help organize your files. How would you like them organized?
- By type
- By date
- By project
**CORRECT** (user will see a modal):
AskUserQuestion({
"questions": [{
"question": "How would you like your files organized?",
"options": [
{ "label": "By type" },
{ "label": "By date" },
{ "label": "By project" }
]
}]
})Read more
name: ask-user-question description: Ask users questions via the UI. Use when you need clarification, user preferences, or confirmation before proceeding. The user CANNOT see CLI output - this tool is the ONLY way to communicate with them.
Ask User Question
Use this MCP tool to ask users questions and get their responses. This is the **ONLY** way to communicate with the user - they cannot see CLI/terminal output.
Critical Rule
The user **CANNOT** see your text output or CLI prompts!
If you write "Let me ask you..." and then just output text - **THE USER WILL NOT SEE IT**. You MUST call this tool to display a modal in the UI.
When to Use
- Clarifying questions before starting ambiguous tasks
- Asking user preferences (e.g., "How would you like files organized?")
- Confirming actions before executing (especially destructive/irreversible ones)
- Getting approval for sensitive actions (financial, messaging, deletion, etc.)
- Any situation where you need user input to proceed
Parameters
{
"questions": [{
"question": "Your question to the user",
"header": "Short label (max 12 chars)",
"options": [
{ "label": "Option 1", "description": "What this does" },
{ "label": "Option 2", "description": "What this does" }
],
"multiSelect": false
}]
}- `question` (required): The question text to display
- `header` (optional): Short category label, shown as modal title (max 12 chars)
- `options` (optional): Array of selectable choices (2-4 recommended)
- `multiSelect` (optional): Allow selecting multiple options (default: false)
**Custom text input:** To allow users to type their own response, include an option with label "Other" (case-insensitive). When selected, the UI shows a text input field.
{ "label": "Other", "description": "Type your own response" }**Important:** When "Other" is selected, the response will be `User responded: [their text]` instead of `User selected: Other`. You must wait for and handle this text response - do NOT proceed as if they selected a predefined option.
Examples
Asking about organization preferences
AskUserQuestion({
"questions": [{
"question": "How would you like to organize your Downloads folder?",
"header": "Organize",
"options": [
{ "label": "By file type", "description": "Group into Documents, Images, Videos, etc." },
{ "label": "By date", "description": "Group by month/year" },
{ "label": "By project", "description": "You'll help me name project folders" }
]
}]
})Confirming a destructive action
AskUserQuestion({
"questions": [{
"question": "Delete these 15 duplicate files?",
"header": "Confirm",
"options": [
{ "label": "Delete all", "description": "Remove all 15 duplicates" },
{ "label": "Review first", "description": "Show me the list before deleting" },
{ "label": "Cancel", "description": "Don't delete anything" }
]
}]
})Simple yes/no confirmation
AskUserQuestion({
"questions": [{
"question": "Should I proceed with sending this email?",
"header": "Send email",
"options": [
{ "label": "Send", "description": "Send the email now" },
{ "label": "Cancel", "description": "Don't send" }
]
}]
})Response Format
The tool returns the user's selection:
- `User selected: By file type` - Single selection
- `User selected: Option A, Option B` - Multiple selections (if multiSelect: true)
- `User responded: [custom text]` - If user typed a custom response
- `User declined to answer the question.` - If user dismissed the modal
Wrong vs Correct
**WRONG** (user won't see this):
I'll help organize your files. How would you like them organized? - By type - By date - By project
**CORRECT** (user will see a modal):
AskUserQuestion({
"questions": [{
"question": "How would you like your files organized?",
"options": [
{ "label": "By type" },
{ "label": "By date" },
{ "label": "By project" }
]
}]
})Self-evolving memory OS for LLM & AI Agents: ultra-persistent memory, hybrid-retrieval, and cross-task skill reuse, with 35.24% token savings
Repo: MemTensor/MemOS
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