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Developer uses deterministic filter to stop Claude from adding unwanted co-author lines

A developer encountered an issue where their commit message generator, powered by Claude, began adding unwanted "Co-Authored-By" lines to commit histories. Despite attempts to refine the system prompt with explicit negative instructions, the LLM continued to include these attributions. The developer found a more robust solution by implementing a deterministic post-processing filter that strips out specific keywords related to AI or co-authorship from the model's output, ensuring cleaner commit messages. AI

IMPACT Highlights the need for deterministic post-processing filters for LLM outputs to ensure reliability and prevent unwanted model behavior.

RANK_REASON Developer implements a practical solution to a common LLM output issue.

Read on dev.to — LLM tag →

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

Developer uses deterministic filter to stop Claude from adding unwanted co-author lines

COVERAGE [1]

  1. dev.to — LLM tag TIER_1 English(EN) · Enjoy Kumawat ·

    My Commit Message Generator Kept Signing Its Own Work. Telling It Not To Wasn't the Fix.

    <p>I have a script called <code>git_commit.py</code> in one of my repos. It shells out to <code>claude -p</code> with the staged diff, gets back a Conventional Commit message, and prints it. It's wired into a <code>prepare-commit-msg</code> git hook so every commit gets a pre-fil…