What Is Agent Capability Discovery?

Capability discovery is how an agent learns what verbs an organisation or another agent exposes — quote, book, refund — and under what terms, before invoking anything. It depends on a machine-readable declaration served at a predictable location, so an agent can read capabilities rather than infer them from a human page. Discovery of what exists is distinct from authority to use it: finding a capability does not grant permission to call it.

Learns
What verbs are offered and on what terms
Source
A machine-readable declaration at a known path
Before
Any invocation
Distinct from
Authority to use the capability

Declared, not inferred

An agent that infers capability from a human page is scraping and guessing. A capability declaration — a manifest an organisation publishes — turns that guess into a read. The estate serves capability through its charter and directory so an agent can enumerate what an org does without a human assembling the list.

Questions

Is capability discovery the same as agent discovery?

Agent discovery finds that an agent or org exists; capability discovery finds what it can do. The first is addressing, the second is the menu.

Does discovering a capability let me use it?

No. Use requires authority and sits within policy; discovery only tells you the capability exists and on what stated terms.

Where this lives in the estate

FlashyOS — capabilities declared in the charter and directory

Keep reading

related
What Is an Agent Manifest?
related
How Do AI Agents Discover Services?
related
What Is an Agent Registry — and Does Discovery Need One?
related
How Agents Match Intent to Capability
Agent Discovery
What Is /.well-known/agent?
Agent Discovery
What Is an Agent-Native Website?
Agent Discovery
What Is an A2A Agent Card?

By Michael Gord · published 2026-10-04 · part of the Agentic Encyclopedia. Dates are the day of publication; events are cited at their own dates.