Glossary
Action Signature
An action signature is cryptographic evidence linking an agent, key, or service to a specific instruction or executed operation.
Plain-English meaning
In this game, Action Signature is used as a vocabulary card for recognizing how market and technology concepts fit together. The short idea is: proof an action was authorized.
The term is not shown as a recommendation. It is included so players can learn the language they may see in exchange interfaces, wallet prompts, research notes, AI product pages, or on-chain analytics dashboards.
Why it belongs with AI Agent Identity
These identity concepts make automated actions attributable, delegated within limits, cryptographically verifiable, and bounded to a session.
When solving the puzzle, compare the job this term performs with nearby cards. A correct group usually shares a function, risk type, workflow, or market structure rather than simply sharing similar wording.
Where you might see it
You might encounter this term while reading educational explainers, product documentation, risk disclosures, market dashboards, or beginner guides. Always separate vocabulary learning from financial decision-making.