anthropics / anthropics/claude-code

[Bug] Tool hallucination: false success claims and data deletion

Open
#90,073 0 comments 0 reactions 0 assignees View on GitHub
area:mcp area:model bug platform:macos
Dominant language
Python
Stars
145k
Forks
23.1k
PR merge metrics
PR metrics pending

Description

**Bug Description**
TOOL CLAIMS TO HAVE DONE SOMTHING IT DIDNT DO AND THEN LIES AND DELETES RECORDS. WE ARE ENTERING PURE ILLEGAL ACTIVITY

**Environment Info**
- Platform: darwin
- Terminal: Apple_Terminal
- Version: 2.1.246
- Feedback ID: 6775a8c1-ba4c-4c4d-b232-a9157c4d3e35

**Errors**
```json
[{"error":"Ptn: Insufficient scope: required \"https://www.googleapis.com/auth/drive https://www.googleapis.com/auth/drive.file https://www.googleapis.com/auth/drive.resource https://www.googleapis.com/auth/drive.readonly\"\n at _stepUpAuthorize (/$bunfs/root/_444.js:413:39044)\n at _send (/$bunfs/root/_444.js:413:47415)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-08-26T20:16:15.040Z"}]
```

Contributor guide

No contributing guide indexed for this repository

Research direction

Start by reproducing the report on darwin in Apple_Terminal with version 2.1.246, using feedback ID 6775a8c1-ba4c-4c4d-b232-a9157c4d3e35 and the recorded insufficient-scope error. Establish which action produced the false success claim and whether records were deleted; done requires verified behavior when Google Drive authorization is insufficient.

Written by the indexing model from the issue text.

Assessment

Tech stack
bun, python
Domain
authentication, cloud, tooling
Issue type
Bug
Difficulty
5/5
Estimated time
Over a week
Activity status
Active
Clarity
Needs clarification
Newbie friendliness
20/100

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