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Geoffrey Huntley describes a pre-commit hook to prevent bypassing a diagnostic library

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Geoffrey Huntley describes a pre-commit hook that checks git diff and blocks the commit when it finds a direct call to observability modules outside the diagnostic library. The AI agent then receives an instruction to use the required library.

Geoffrey Huntley describes checking changes made by an AI agent using a pre-commit hook. The check scans git diff and looks for direct calls to observability modules, meaning modules for monitoring operations, that bypass his diagnostic library.

If the check detects such a call, it blocks the commit and instructs the agent to use the diagnostic library. According to Huntley, this approach addresses deviations from the rules that may persist even after the instructions in AGENTS.md have been revised.

What changed

Why it matters

Developers get a concrete example of how to turn a requirement in the instructions for an AI agent into an automated code check. Compliance with the rule is checked when a commit is attempted, and a detected violation triggers an instruction to fix it.

Two audiences, two different impacts

What this means

01

For individuals

When working with an AI agent, a developer can use automated feedback to correct a specific rule violation instead of repeatedly adding instructions.

What to do Try a pre-commit hook in your project that searches git diff for calls that bypass the diagnostic library and gives the agent a specific instruction to fix the issue.
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02

For a business

For a development team, the approach described provides a model for enforcing a shared approach to diagnostics when committing changes made by AI agents. The check can detect attempts to bypass the required library before the commit is completed.

Development
What to decide Check whether the rule requiring use of the shared diagnostic library can be turned into a check that blocks a commit when the rule is violated.
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AGENTS.md Geoffrey Huntley Git

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Event sources

only one source so far · 1 publisher, 1 independent. We count feeds from the same owner only once.

1
Simon Willison — AI tag (leading independent LLM commentator) community signal · first detected Quoting Geoffrey Huntley