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Tools2026-07-23 · source-backed
Three frontier models shipped in a single week this month, and teams with a standing eval harness had a routing decision in hours. Anthropic's own agent-eval guidance says 20-50 tasks drawn from your real usage and real failures is enough to detect issues (DeepEval). DeepEval 4.0 (~17k stars, 8M+ monthly PyPI downloads) added a local harness aimed at coding agents specifically; Promptfoo tagged v0.121.19 on July 14 (MIT, 23.3k stars), now under OpenAI while staying open source. Mine your own failure log for 20 tasks today. Don't wait to build a proper benchmark, you won't.
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Anthropic released Claude Code / Shared entities / Shared topic / Earlier coverage
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Anthropic released Claude Code / Shared entities / Shared topic / Earlier coverage / Tension
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Anthropic released Claude Code / Shared entities / Shared topic / Earlier coverage
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