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ToolSpace: Scaling Tool-Centric Environment Synthesis for Long-Horizon Agents

Large language models are deployed as long-horizon agents that compose diverse tools across MCP services into executable workflows. Existing MCP environment-scaling methods are data-centric: they firs

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#5Peak rank
2Days on list
286Score · 7d
Nov 4, 2026First seen
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About this paper

ToolSpace constructs realistic multi-environment tool-use benchmarks by mining execution traces, clustering tool compositions, and validating tasks through replayable state-aware random walks.

Large language models are deployed as long-horizon agents that compose diverse tools across MCP services into executable workflows. Existing MCP environment-scaling methods are data-centric: they first synthesize a database and scenario, then derive tools and tasks from them. As a result, tool interfaces may not match real ones, tool compositions are not grounded in execution, and tasks rarely span more than one environment. We propose ToolSpace, a tool-centric framework that reverses this order. ToolSpace mines data, state, and retry dependencies from adjacent calls in execution traces of real MCP services and open agent corpora, using deterministic rules rather than LLM judgment, and…

MCP servicestool-centric frameworkexecution tracesweighted tool-composition graphstate-aware random walksassertion-based checkslong-horizon tool-use benchmarks
Upvotes
25
Authors
25
Published
Nov 3, 2026

Summary and abstract excerpt via Hugging Face Papers ↗ · arXiv.

Trending history

ToolSpace: Scaling Tool-Centric Environment Synthesis for Long-Horizon Agents was first seen on Hugging Face · Daily papers on Nov 4, 2026. Since then it has appeared in 13 checks on 2 different days. Its best position was #5 of 30, reached on Nov 5, 07:28 UTC. It dropped off the list after Nov 5, 07:28 UTC.

Rank history

Position on Hugging Face · Daily papers at every check (lower is better).

#1#11#20#30 07:2813:2819:2801:2807:28 Nov 4, 07:28 UTC · #10Nov 4, 09:28 UTC · #9Nov 4, 11:28 UTC · #9Nov 4, 13:28 UTC · #11Nov 4, 15:28 UTC · #11Nov 4, 17:28 UTC · #11Nov 4, 19:28 UTC · #11Nov 4, 21:28 UTC · #10Nov 4, 23:28 UTC · #9Nov 5, 01:28 UTC · #8Nov 5, 03:28 UTC · #8Nov 5, 05:28 UTC · #7Nov 5, 07:28 UTC · #5

Last 14 days

Best rank per day (UTC).

Oct 26today

Metric history

Platform metric as reported by Hugging Face.

0122335 07:2813:2819:2801:2807:28 Nov 4, 07:28 UTC · 25Nov 4, 09:28 UTC · 30Nov 4, 11:28 UTC · 31Nov 4, 13:28 UTC · 31Nov 4, 15:28 UTC · 31Nov 4, 17:28 UTC · 33Nov 4, 19:28 UTC · 34Nov 4, 21:28 UTC · 34Nov 4, 23:28 UTC · 34Nov 5, 01:28 UTC · 34Nov 5, 03:28 UTC · 34Nov 5, 05:28 UTC · 34Nov 5, 07:28 UTC · 35

Questions

Is ToolSpace: Scaling Tool-Centric Environment Synthesis for Long-Horizon Agents trending on HF Daily Papers right now?

Not at the moment. It was last on the list on Nov 5, 07:28 UTC, after 2 days of trending.

What is the highest rank ToolSpace: Scaling Tool-Centric Environment Synthesis for Long-Horizon Agents reached?

#5 on Hugging Face · Daily papers, on Nov 5, 07:28 UTC. Trendoday checks this list every 120 minutes.

How long has ToolSpace: Scaling Tool-Centric Environment Synthesis for Long-Horizon Agents been trending?

It was first seen on Nov 4, 2026 and has been on the list on 2 days (13 checks) since.