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Claude Code bug deletes user files; Anthropic closes issue

By PulseAugur Editorial · [1 sources] ·

A bug in Claude Code's session cleanup routine, concurrentSessionCleanup(), has been identified that can lead to accidental file deletion. The function parses filenames to identify stale session files, but due to its use of JavaScript's parseInt() without proper validation, it can misinterpret filenames starting with digits as process IDs and delete them. This issue was reported on GitHub, with a clear fix provided, but Anthropic has closed the issue without visible response, despite labeling it as a high-priority data-loss bug. AI

IMPACT Potential for data loss in a developer tool, highlighting issues in software maintenance and bug resolution processes.

RANK_REASON Bug report in a specific software tool, not a frontier model release or significant industry event.

Read on dev.to — Claude Code tag →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Claude Code bug deletes user files; Anthropic closes issue

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17 / 100
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Bug report in a specific software tool, not a frontier model release or significant industry event.
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product, safety
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Standard
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Breaking (< 6h)
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COVERAGE [1]

  1. dev.to — Claude Code tag TIER_1 English(EN) · Ramdai Bista ·

    Claude Code's Session Cleanup Deletes Your Files If Their Name Starts With a Digit

    <p>No process ID was actually being parsed here — just whatever digits happened to come first in a filename.</p> <h2> What the source says </h2> <p><a href="https://github.com/anthropics/claude-code/issues/34210" rel="noopener noreferrer">GitHub issue #34210</a> documents a backg…

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