# Glossary

The words you will see across Opser, explained in everyday terms.

Source: https://docs.opser.com/help/glossary/

## People and agents
**Workspace:** your organization’s Opser environment, with its users, apps, records, agents, and settings.

**Default agent:** the first agent created with your user account. Like any agent, you can give other people access to it.

**Specialist agent:** an additional agent you create for a particular role or kind of work. Only you use it until you give other people access.

**Agent access:** the people who can use an agent besides its owner, who edits its settings. Everyone with access uses the agent together: the same chat, automations, files, memory, and connected accounts. An agent never does more than its owner could.

**Access group:** a reusable collection of permissions assigned to people or agents.

## Work and capabilities
**Chat:** an agent's one ongoing conversation, shared by everyone who can use it, including messages, questions, files, and results. It never resets.

**Compaction:** how an agent keeps a long chat workable. It summarizes earlier messages, keeps the latest ones word for word, and looks up older details when it needs them. Nothing is deleted.

**Steps:** the tools, reasoning, plan, and sub-agents behind an agent's reply. The chat hides them unless you turn on **Show the agent's steps** in **Settings → General**.

**Tool:** an operation an agent can perform, such as reading a file or updating a record.

**Skill:** instructions that help an agent approach a particular kind of work.

**Approval:** a review point before a proposed agent action runs. It does not replace permissions.

**Automation:** work triggered by a supported event or schedule. Its results show in the agent's chat.

**Artifact:** a file or other output produced during a task, such as a workbook or slide deck.

## Apps and data
**App:** a workspace tool with its own interface and supported data operations. You may also see the technical term “module” in operation details.

**Internal app:** an app used within the Opser workspace.

**External app:** a separate web experience, such as a site or portal, built through Opser’s external app capability.

**Integration:** an authorized connection to an external service or account.

**Draft:** work being built or reviewed before publication. A preview is not necessarily the published version.

**Contract:** a declared operation one app offers and another app is allowed to request.

**Event:** a signal that something happened, delivered to a declared subscribing workflow.

**Notification:** a message bringing activity to a person's attention, separate from a workflow event.

**Agent workspace:** the persistent filesystem belonging to one agent, used for inputs, scripts, and results from one task to the next.

**Document standard:** an organization's instructions and optional reference file for a recurring document format.

## Billing
**Credit:** a unit of usage value. A task’s cost depends on the models and operations it uses.

**Plan credits:** the recurring allowance included with a workspace plan.

**Extra credits:** a separate balance that does not expire, used after plan credits, such as credits granted by support.