68,072 agent plugin bundles measured: 6.2% validate, and 81% of capability-exporting bundles collide on name
The Agent Plugins v1.0.0 spec published 24 July 2026 standardized how skills, sub-agents, commands, hooks and tool servers are packaged. AgentPluginZoo, a provenance-tracked corpus of 68,072 bundles across 30,655 repositories, finds only 6.2% validate, though the gap is shallow — 96.6% would load after adding one missing boilerplate field. The real cost is elsewhere: 40.2% would load only if the client discards fields their authors wrote, and 81% of capability-exporting bundles share a name with another plugin with no namespace or precedence rule to decide which one answers. The paper argues the community standardized a packaging format when composition needs a model, and names the four missing concepts: qualified capability identity, a declared capability surface, a precedence rule, and inter-plugin relations.
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