Unverified50% confidenceFactExact time
Among the 1,274 MCP tools, 497 tool descriptions scored below 40, and only 18 reached 80 or above.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/15/2026
First Seen
Valid until: 1/13/2027
Sources
Related Entities
Related Claims
Unverified20 sources gave specific numbers for MCP tool counts, including Workato recommending 5-8, OpenAI recommending no more than 10 per namespace and no more than 20 in total, and Claude documentation recommending 30-50, but only 3 of them came from the authors' own measurements.74% similarUnverifiedTools scoring below 40 were correctly selected 95.5% of the time, while tools scoring 60 to 79 instead reached 100%.70% similarUnverifiedMultiple papers have specifically measured the quality of tool descriptions, and after analyzing approximately 100 MCP servers, researchers concluded that most descriptions are written very poorly.68% similarUnverifiedA hand-crafted library of 22 calculators achieved perfect accuracy on the 440 cases it supported, but abstained on the remaining cases, yielding an overall coverage rate of only 40.0%.67% similarUnverified数据集中每个工具约有130种表达变体，并加入40个不使用工具的负样本66% similar
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