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Anthropic Claude Desktop filesystem integration fails on Windows

Users of Anthropic's Claude Desktop application on Windows have reported a critical bug where the filesystem integration has stopped functioning. This issue prevents the application from accessing local directories, with error messages indicating failures in tools like `list_allowed_directories` and `list_directory`. The problem appears to be occurring before the calls even reach the server, suggesting a client-side issue within the `@modelcontextprotocol/server-filesystem` component on Windows 11. AI

IMPACT This bug may hinder users relying on Claude Desktop for tasks requiring local file access, potentially impacting productivity and workflow integration.

RANK_REASON User-reported bug in a specific software product.

Read on r/Anthropic →

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

Anthropic Claude Desktop filesystem integration fails on Windows

COVERAGE [1]

  1. r/Anthropic TIER_1 English(EN) · /u/Lurkoner ·

    Filesystem MCP in Claude Desktop (Windows) stopped working ~2 days ago - anyone else?

    <!-- SC_OFF --><div class="md"><p>Worked fine, then two days ago every filesystem call started failing instantly:</p> <p>Failed to call tool &quot;list_allowed_directories&quot;.</p> <p>Failed to call tool &quot;list_directory&quot;.</p> <p>Already chased the obvious stuff, so sk…