ResearchResearch paperAgents & Tool Use · Large Language Models1 source · Oct 18, 2026

One Skill Takes Over: Clashing Agent Skills and a One-File Fix

Agent Skills are instruction files that tell a coding agent how to do one job.

Key points

  • Users install skills from many authors, so two skills for the same job can be active at the same time.
  • We ask what a model does when both skill files are in its context: does it combine their compatible rules, or follow one skill and drop the other?
  • Most outputs show takeover: every rule that only one skill asks for is followed, and every rule that only the other skill asks for is dropped.
  • When each skill file instead ends with one example that follows both skills, takeover falls to 1 to 15% on the six models we tested.

Sources (1)

  • [1]One Skill Takes Over: Clashing Agent Skills and a One-File Fix
    arXiv (AI, ML, NLP, CV, robotics, multi-agent) · Oct 18, 07:11 AM
    Agent Skills are instruction files that tell a coding agent how to do one job.
    Users install skills from many authors, so two skills for the same job can be active at the same time.

Extractive summary: sentences quoted from the sources.

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