---
title: "Discussion on \"Debugging a Critical Marketplace Schema Validation Failure: How One Invalid Field Blocked All Installations\\n\" | Hashnode"
description: "Discussion on \"Debugging a Critical Marketplace Schema Validation Failure: How One Invalid Field Blocked All Installations\\n\". At 10:16 PM ET on October 16th, 2025, a user reported they couldn't install the Claude Code Plugins marketplace. The error message was clear but devastating:\n✘ Failed to add marketplace: Invalid schema: plugins.1: Unrecognized key(s) in object: 'enha..."
url: "https://hashnode.com/posts/debugging-a-critical-marketplace-schema-validation-failure-how-one-invalid-field-blocked-all-installationsn/69c45d44e92252d51654ccf1"
---

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# [Debugging a Critical Marketplace Schema Validation Failure: How One Invalid Field Blocked All Installations\\n](https://jeremylongshore.hashnode.dev/debugging-a-critical-marketplace-schema-validation-failure-how-one-invalid-field-blocked-all-installationsn?utm_source=hashnode&utm_medium=feed)

At 10:16 PM ET on October 16th, 2025, a user reported they couldn't install the Claude Code Plugins marketplace. The error message was clear but devastating: ✘ Failed to add marketplace: Invalid schema: plugins.1: Unrecognized key(s) in object: 'enha...

Mar 25 · 7 min read · jeremylongshore.hashnode.dev  
Read the article

-   [#debugging](https://hashnode.com/tag/debugging)
-   [#schema-validation](https://hashnode.com/tag/schema-validation)
-   [#ci-cd](https://hashnode.com/tag/ci-cd)
-   [#marketplace](https://hashnode.com/tag/marketplace)
-   [#claude-code](https://hashnode.com/tag/claude-code)

## Written by

[Jeremy Longshore](https://hashnode.com/@jeremylongshore)

@jeremylongshore · Gulf Shores AL

  
[View profile](https://hashnode.com/@jeremylongshore)

Intentsolutions dot io

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