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Claude Code hooks fail silently due to unobservable errors

By PulseAugur Editorial · [1 sources] ·

This article details several ways Claude Code hooks can fail without producing errors, leading to silent malfunctions. Issues include event types that ignore matchers, 'if' conditions only evaluating on tool events, deprecated keys that still parse but behave unexpectedly, and required handler fields being missed when switching types. Additionally, plugin-provided MCP tools have specific naming conventions that can cause matchers to fail if not accounted for. The author developed a tool called `ccheck` to identify these non-observable failures by cross-referencing the `.claude/` configuration with official documentation. AI

IMPACT Developers using Claude Code may encounter silent hook failures, leading to unexpected behavior or security risks.

RANK_REASON Article discusses a specific tool (`ccheck`) for debugging a feature (`Claude Code hooks`) of a larger product, rather than a core AI release or research.

Read on dev.to — Claude Code tag →

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

Claude Code hooks fail silently due to unobservable errors

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Signal score
15 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Tool
Article discusses a specific tool (`ccheck`) for debugging a feature (`Claude Code hooks`) of a larger product, rather than a core AI release or research.
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Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
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product, other
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Standard
On-topic for AI-industry coverage; kept in the public index.
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Breaking (< 6h)
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Full methodology in our editorial standards.

COVERAGE [1]

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

    Your Hook Is Configured Correctly and Never Runs

    <p>You write a hook. The JSON is valid. The keys are spelled right. No error appears.</p> <p><strong>Nothing happens.</strong></p> <p>The hard part is that nothing points at the mistake. Startup is clean, <code>--debug</code><br /> says nothing, and the hook simply does not run.<…

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