Claude Code leak suggests Anthropic is working on a 'Proactive' mode for its coding tool

## Summary
Claude Code running Sonnet 4.5. (Anthropic) What should have been a routine release has revealed some of the features Anthropic has been working on for Claude Code. As reported by Ars Technica , The Verge and others, after the company released Claude Code's 2.1.88 update on Tuesday, users found it contained a file that exposed the app's source code. In the aftermath, some people claim to have found evidence of upcoming features Anthropic is working to develop. In a Reddit post spotted by The Verge , another person found evidence that Anthropic might have been working on a Tamagotchi-like virtual companion that "reacts to your coding" as a kind of April Fools joke. "A Claude Code release included some internal source code.

## Article Content
Claude Code running Sonnet 4.5.
(Anthropic)
What should have been a routine release has revealed some of the features Anthropic has been working on for Claude Code. As reported by
Ars Technica
,
The Verge
and others, after the company released Claude Code's 2.1.88 update on Tuesday, users found it contained a file that exposed the app's source code. Before Anthropic took action to plug the leak, the codebase was uploaded to a public GitHub repository, where it was subsequently copied more than 50,000 times. All told, the entire internet (and Anthropic's competitors) got a chance to examine more than 512,000 lines of code and 2,000 TypeScript files.
In the aftermath, some people claim to have found evidence of upcoming features Anthropic is working to develop.
Over on X
, Alex Finn, the founder of AI startup Creator Buddy, says he found a flag for a feature called Proactive mode that will see Claude Code work even when the user hasn't prompted it to do something. Finn claims he also found evidence of a crypto-based payment system that could potentially allow AI agents to make autonomous payments. In a
Reddit post spotted by
The Verge
, another person found evidence that Anthropic might have been working on a Tamagotchi-like virtual companion that "reacts to your coding" as a kind of April Fools joke.
"A Claude Code release included some internal source code. No sensitive customer data or credentials were involved or exposed," an Anthropic spokesperson told
Bleepingcomputer
. "This was a release packaging issue caused by human error, not a security breach. We're rolling out measures to prevent this from happening again."
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As with any other leak, it's worth remembering plans can and often do change. Just because a company has written the code to support a feature doesn't mean it will eventually ship said feature.
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## Expert Analysis

### Merits
N/A

### Areas for Consideration
- No sensitive customer data or credentials were involved or exposed," an Anthropic spokesperson told Bleepingcomputer . "This was a release packaging issue caused by human error, not a security breach.

### Implications
- Claude Code running Sonnet 4.5. (Anthropic) What should have been a routine release has revealed some of the features Anthropic has been working on for Claude Code.
- Over on X , Alex Finn, the founder of AI startup Creator Buddy, says he found a flag for a feature called Proactive mode that will see Claude Code work even when the user hasn't prompted it to do something.
- Finn claims he also found evidence of a crypto-based payment system that could potentially allow AI agents to make autonomous payments.
- In a Reddit post spotted by The Verge , another person found evidence that Anthropic might have been working on a Tamagotchi-like virtual companion that "reacts to your coding" as a kind of April Fools joke. "A Claude Code release included some internal source code.

### Expert Commentary
This article covers code, anthropic, claude topics. Areas of concern are also raised. Readability: Flesch-Kincaid grade 0.0. Word count: 312.