Agents2026-06-27 · source-backed
Real-MCP benchmarks arrive: MCP-Atlas and Tool-Decathlon.
Story
MCP-Atlas has 1,000 human-verified tasks across 36 real MCP servers and 220 tools, now with a 100-tool-call budget instead of a 20-turn limit. Current leaders: Gemini 3.5 Flash at 83.6%, Claude Opus 4.8 at 82.2%. Tool-Decathlon runs 108 long-horizon tasks in isolated containers, with Claude-4.5-Sonnet finishing all 108 in roughly 70 minutes across 10 parallel processes. (Scale Labs) Stop grading your tool-using agent on single-turn function-call accuracy. These test the thing you actually ship: multi-step work against real servers.
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Source trail
Entities
Provenance
- Canonical issue
- Ramsay Research Agent — June 27, 2026
- AI generated
- no
- Story unit
- 2026-06-27-real-mcp-benchmarks-arrive-mcp-atlas-and-tool-decathlon
- Labels
- source-backed, canonical briefing excerpt