Tool/Agent Registry
Maintain a single queryable catalog of tools and agents with capability metadata (cost, latency, quality) so the coordinator picks the right one per task.
Intent & Description
🎯 Intent
Let the coordinator agent select among many tools and specialists by measured attributes, not hardcoded choices.
📋 Context
Your coordinator agent picks between three speech-to-text services with different price/accuracy tradeoffs, two summarizer agents with different domain strengths, and several search tools with overlapping coverage. They evolve independently and some come from third parties.
💡 Solution
A registry exposes a queryable catalog of (1) tools — typed inputs/outputs, cost, latency, allowed contexts — and (2) agents — capability descriptions, supported tasks, model and provider, price. The coordinator queries the registry per task, ranks candidates by suitability, and dispatches. Registry entries are lightweight metadata, not full schemas.
Real-world Use Case
- Many tools and/or agents are available and selection is non-trivial.
- A central catalog (internal or marketplace) can be maintained.
- Selection metadata (cost, quality, context window) actually changes which one to pick.
Source
📌 TL;DR
One catalog for tools and agents, queryable by cost/quality/latency. Coordinator picks the right one per task instead of always using the same hardcoded set.
Advantages
- One place to discover all capabilities — tools and agents both.
- Ranking by cost, performance, and context window saves time and money.
- The right pick per task, not the same hardcoded set every time.
- Lightweight metadata scales to many entries without bloating the catalog.
Disadvantages
- Registry becomes a centralization risk — single point of failure and potential vendor lock-in.
- Maintaining accurate metadata requires ongoing effort.
- Registry entries may misrepresent capability; selection must validate in practice.