# Glossary

The words these docs use, in one line each.

| Word            | Meaning                                                                  |
| --------------- | ------------------------------------------------------------------------ |
| Agent           | The AI program that proposes actions                                     |
| Principal       | The person or organisation the agent acts for                            |
| Mandate         | Written authority: what the agent may do, for whom, until when, how much |
| Capability      | A kind of action Delegrity knows how to check                            |
| Action          | One specific thing an agent proposed                                     |
| Policy          | Your organisation's rules: allow, refuse, or ask a person                |
| Decision        | `AUTHORIZED`, `AWAITING_APPROVAL`, `BLOCKED` or `EXPIRED`                |
| Grant           | A signed, single-use permission to run exactly one approved action       |
| Bridge          | The part that checks the grant and runs the action, once                 |
| Connector       | How the bridge talks to one business system                              |
| Read-back       | Reading the system after a change, to confirm what really happened       |
| Receipt         | Signed proof of what was asked, who allowed it and what happened         |
| Offer           | An action a person approved and offered to your agent to accept          |
| Observed        | Recorded with its decision, but not controlled                           |
| Enforced        | Controlled, with proof that nothing can go around Delegrity              |
| Idempotency key | A label that makes a retry a replay, never a second action               |
| Ambiguous       | Sent to the system, with no answer yet on whether it acted               |

See [Core concepts](/developers/concepts) for how they fit together.