Keyword Harnesses Fail Open: A Cheap Diagnostic Ladder for Tool-Use Claims in Small Language Models

1 Oct 2026Reported by arXiv21

Keyword Harnesses Fail Open: A Cheap Diagnostic Ladder for Tool-Use Claims in Small Language Models. The story centres on Benchmarks. Reported by arXiv. Bharat Hunt files it under AI Agents and AI Tools — the section covering autonomous and tool-using systems, agent frameworks, MCP and orchestration.

Written by Bharat Hunt from the headline and the coverage below. The original reporting is the source of truth.

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Benchmarkstopic

Reported by arXiv

First seen 1 oct 2026

arXivKeyword Harnesses Fail Open: A Cheap Diagnostic Ladder for Tool-Use Claims in Small Language Models1 Oct 2026Juan S. Santillana

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Anthropic wants independent evaluators inside frontier AI labs; OpenAI agrees. It centres on Anthropic, and also names OpenAI. MediaNama and TechCrunch have both covered it. Bharat Hunt files it under AI Models — the section covering a new or updated model, its capabilities, benchmarks or availability.

TechCrunch17 Sept 2026Covered by 2 sources

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Keyword Harnesses Fail Open: A Cheap Diagnostic Ladder for Tool-Use Claims in Small Language Models

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Reported by arXiv

Anthropic wants independent evaluators inside frontier AI labs; OpenAI agrees

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