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Developer finds bug where tool returns drafts instead of published articles

By PulseAugur Editorial · [1 sources] ·

A developer discovered a bug in their MCP tool where the `list_articles` function's docstring claimed to return published DEV.to articles, but the underlying API call actually retrieved all articles, including unpublished drafts. This discrepancy meant that when the tool was executed, it would return drafts instead of published content, leading to silent data corruption for any downstream processes relying on the function's output. The issue was confirmed by simulating the API response and was fixed by changing the endpoint to specifically request published articles. AI

IMPACT Highlights the importance of rigorous testing and verifying API calls against their documented behavior to prevent silent data corruption in software tools.

RANK_REASON The item describes a bug in a specific tool and its resolution, not a broader industry release or significant event.

Read on dev.to — MCP tag →

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

Developer finds bug where tool returns drafts instead of published articles

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

    "My MCP Tool's Docstring Said 'Published Articles.' It Called the Endpoint That Returns Everything."

    <p>I've written before about docstrings promising API behavior the underlying call never actually honored — a <code>sort=stars</code> parameter that GitHub silently ignored and fell back on its own default for. That bug and this one look similar from a distance ("docstring says X…

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