Claude Code / AI Coding Tools

Claude Code Stream Stall 15-30 Seconds at Session Start When Using AskUserQuestion Tool

Fix Claude Code VS Code extension stream freezing for 15-30 seconds at session start with AskUserQuestion tool Includes evidence for Claude Code troubleshooting demand.

Source-backed Last updated May 14, 2026 1 source Needs local verification

Category: AI Coding Tools
Error signature: Stream stall ~15-30s at start of new session with AskUserQuestion tool
Quick fix: Compare the failing environment with a known working setup, then change one configuration value at a time.
Updated: May 14, 2026
Verification status: Source-backed
Evidence: 1 public source URL

Before you change production

This page includes public source URLs in the imported troubleshooting record. Compare those references with your version and environment before applying changes.

Reproduce the smallest failing action and save non-secret logs before changing configuration.
Check versions for Claude Code, related SDKs, package managers, CI runners, and hosting providers.
Change one setting or dependency at a time, then rerun the same failing command or request.
Avoid destructive commands, credential rotation, billing changes, or security relaxations without a rollback plan.

What this error means

Stream stall ~15-30s at start of new session with AskUserQuestion tool is a Claude Code failure pattern reported for developers trying to fix claude code vs code extension stream freezing for 15-30 seconds at session start with askuserquestion tool. Based on the imported evidence, treat this as a tool-specific troubleshooting page rather than a generic API error.

Why this happens

Open issue with 'has repro' label. Specific to VS Code extension with claude-opus-4-7[1m] model. Stream freezes for 15-30s when AskUserQuestion tool is invoked at session start. Clear reproduction steps.

Common causes

The stream freezes at the start of a new session when the model invokes AskUserQuestion tool, causing a 15-30 second delay before any response appears. This affects user experience in the VS Code extension with claude-opus-4-7 model.
Open issue with 'has repro' label. Specific to VS Code extension with claude-opus-4-7[1m] model. Stream freezes for 15-30s when AskUserQuestion tool is invoked at session start. Clear reproduction steps.

Quick fixes

Confirm the exact error signature matches Stream stall ~15-30s at start of new session with AskUserQuestion tool.
Check the Claude Code account, local tool state, and provider configuration involved in the failing workflow.
Compare the failing environment with a known working setup, then change one configuration value at a time.

Platform/tool-specific checks

Verify the command, editor, extension, or API client that produced the error.
Compare local settings with CI, deployment, or editor-level settings when the error appears in only one environment.
Avoid deleting credentials, local model data, or project settings until the failing scope is clear.

Step-by-step troubleshooting

Capture the exact error message and the command, editor action, or request that triggered it.
Check whether the failure is account/auth, quota/rate, model/provider, local runtime, or deployment configuration.
Review the source evidence below and compare it with your environment.
Apply one change at a time and rerun the smallest failing action.
Keep the working fix documented for the team or deployment environment.

How to prevent it

Keep provider/tool configuration documented.
Record non-secret diagnostics such as tool version, provider name, model name, and command path.
Add a lightweight check before CI or production workflows depend on the tool.

Diagnostic flow for this page

Match Stream stall ~15-30s at start of new session with AskUserQuestion tool exactly before applying the quick fix.
Compare the failing environment with Claude Code versions, account scope, provider settings, and deployment context.
Check the listed common causes in order, starting with the cause that best matches your logs.
Use the evidence status below to decide whether to confirm against public sources or official documentation.
Apply one reversible change, rerun the smallest failing action, and keep rollback notes.

FAQ

What does Stream stall ~15-30s at start of new session with AskUserQuestion tool mean in Claude Code?

Stream stall ~15-30s at start of new session with AskUserQuestion tool indicates the workflow described by "Claude Code Stream Stall 15-30 Seconds at Session Start When Using AskUserQuestion Tool" failed in a AI Coding Tools context. Start by confirming the exact signature and the component that emitted it.

What should I check first for Stream stall ~15-30s at start of new session with AskUserQuestion tool?

Check whether this cause matches your environment: The stream freezes at the start of a new session when the model invokes AskUserQuestion tool, causing a 15-30 second delay before any response appears. This affects user experience in the VS Code extension with claude-opus-4-7 model.

Is the Stream stall ~15-30s at start of new session with AskUserQuestion tool guidance source-backed?

The "Claude Code Stream Stall 15-30 Seconds at Session Start When Using AskUserQuestion Tool" page is labeled source-backed. It has 1 public source URL from github.com, so use that evidence status when deciding how much additional verification you need.

When should I avoid the quick fix for Stream stall ~15-30s at start of new session with AskUserQuestion tool?

For "Claude Code Stream Stall 15-30 Seconds at Session Start When Using AskUserQuestion Tool", avoid applying "Compare the failing environment with a known working setup, then change one configuration value at a time." when the error text differs, the affected version or provider is different, or the change would touch credentials, billing, DNS, production deploy settings, or irreversible data.

What should I collect before debugging Stream stall ~15-30s at start of new session with AskUserQuestion tool?

For "Claude Code Stream Stall 15-30 Seconds at Session Start When Using AskUserQuestion Tool", collect the failing Claude Code command or request, non-secret configuration, versions, timestamps, request IDs when available, and the smallest reproduction that still triggers the signature.