[BUG] fail to invoke tool call

Status Fixed / completed
Maintainer reply ✓ Yes — bcherny
Activity 5 comments · opened Aug 11, 2026 · closed Aug 16, 2026
💡 Likely answer: A maintainer (bcherny, collaborator) responded on this thread — see the highlighted reply below.

Preflight Checklist

  • [x] I have searched existing issues and this hasn't been reported yet
  • [x] This is a single bug report (please file separate reports for different bugs)
  • [x] I am using the latest version of Claude Code

What's Wrong?

The agent fail to invoke any tool call for reading and editting, while it still insisted that it has made a tool call. It seens somewhere is blocked.

What Should Happen?

read or edit file in workspace

Error Messages/Logs

Steps to Reproduce

make a commend about reading files.
for example "help me understand this html"

<img width="711" height="229" alt="Image" src="https://github.com/user-attachments/assets/4d740e3b-a70d-44c7-a38c-9135e149ddce" />

Claude Model

_No response_

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

v2.1.227

Platform

Other

Operating System

Windows

Terminal/Shell

VS Code integrated terminal

Additional Information

_No response_

View original on GitHub ↗

4 Comments

bcherny collaborator · 2 months ago

Thanks for the report. I tried to reproduce this on the current release (2.1.233): in a folder with an index.html, running claude -p "help me understand this html" made a real Read tool call and answered from the file's contents, so tool calls are working there.

When the model says it read or edited a file but nothing actually happened, it's usually the API path rather than the CLI: a proxy/gateway/relay in front of the API (or a non-default model) that drops or doesn't stream tool-call blocks. Your report lists Platform as "Other", so that seems worth ruling out.

To dig further, could you share:

  • Whether it still happens on the latest version (2.1.233), and the model you're using (/model)
  • Whether you go through a custom API endpoint / gateway (ANTHROPIC_BASE_URL, Bedrock/Vertex, or a relay)
  • The output of claude doctor
  • A /share link or a debug log (claude --debug) from a session where it happens

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github-actions[bot] · 2 months ago

We weren't able to reproduce this. Could you provide steps to trigger the issue — what you ran, what happened, and what you expected? This issue will be closed automatically if there's no activity within 7 days.

apeiria-network · 2 months ago

I updated the plugin and vscode and these problems seen to be solved. This bug hasn t shown sgain. I think it might be already ok

---- Replied Message ----
| From | @.*> |
| Date | 08/16/2026 12:24 |
| To |
@.*> |
| Cc | @.>@.> |
| Subject | Re: [anthropics/claude-code] [BUG] fail to invoke tool call (Issue #85696) |
github-actions[bot] left a comment (anthropics/claude-code#85696)

We weren't able to reproduce this. Could you provide steps to trigger the issue — what you ran, what happened, and what you expected? This issue will be closed automatically if there's no activity within 7 days.

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bcherny collaborator · 1 month ago

Glad it's resolved after updating — closing. Reopen if it comes back.

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