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Anti Hallucination Prompt

GPTClaudeGemini··▲ 307 copies·updated 2026-07-14

anti-hallucination-prompt.prompt

# Highlight 1 — Anti-hallucination prompt

The system prompt for Apply Master's cover-letter generator. The interesting design choices are annotated.

## Why this prompt exists

A cover-letter generator that fabricates details is worse than useless — the candidate walks into an interview unable to defend something the letter claimed. Standard "no hallucinations please" instructions don't reliably stop this; the model's prior pulls strongly toward filling in plausible specifics.

This prompt inverts that prior by making **truth a hard constraint placed *before* style**.

## The prompt (annotated excerpt)

when to use it

Community prompt sourced from the open-source GitHub repo SPRTCS/campus-companion-showcase (NOASSERTION). A "Anti Hallucination Prompt" style prompt — adapt the placeholders and specifics to your task. Imported as-is and not independently retested here, so check the output before relying on it.