> ## Documentation Index
> Fetch the complete documentation index at: https://docs.t3planet.de/en/latest/llms.txt
> Use this file to discover all available pages before exploring further.

# Appendix

> Appendix for EXT:ns_t3af (T3AF).

Terms used in **T3AF** documentation.

## A–C

* **AI Context** — Brand profile injected into prompts. See [AI Context](/en/latest/en/latest/ExtNsT3AF/AIContext/Index).
* **AI Provider** — Connection to an AI vendor (OpenAI, Claude, and others).
* **API key** — Secret for AI or translation APIs. Stored encrypted in T3AF.
* **BYOK** — Bring Your Own Key. You pay the vendor directly.
* **Credits** — T3Planet billing units. About 1 credit per 1,000 tokens by default.
* **CLI** — Command line interface (`vendor/bin/typo3`).

## G–M

* **GDPR** — EU data protection regulation (DSGVO in German).
* **Governance** — Access control, budgets, and rate limits for AI. See [AI Permissions](/en/latest/en/latest/ExtNsT3AF/Configuration/AIPermissions/Index).
* **JSON-LD** — Schema markup format for structured data.
* **MCP** — Model Context Protocol. Connects AI agents to TYPO3. See [MCP Server](/en/latest/en/latest/ExtNsT3AF/MCPServer/Index).
* **Meta description** — Short text shown in Google search results.

## O–T

* **OAuth** — Secure authentication for MCP remote connections.
* **Prompt** — Instruction sent to the AI. See [AI Prompts](/en/latest/en/latest/ExtNsT3AF/AIPrompts/Index).
* **Provider** — AI vendor connection configured in the backend.
* **Scheduler** — TYPO3 system extension for background jobs.
* **Stdio** — MCP transport via command line (local development).
* **Token** — Unit of AI text; also used for auth tokens in MCP.
* **TYPO3** — The content management system.

## W

* **Workspace** — Draft content version in TYPO3. `0` = live; `1+` = draft.

## Extension key

* `ns_t3af` — T3AF (this extension)

## Developer API

Child extensions integrate through `AiServiceInterface`:

* `complete()` — Full AI text response
* `stream()` — Real-time text chunks
* `embed()` — Vector embeddings
* `provider()` — Active provider record

Extensions must not call vendor APIs directly. T3AF handles keys, logging, credits, and governance.

Full API reference: [Developer Guide](/en/latest/en/latest/ExtNsT3AF/DeveloperGuide/Index)

## Related pages

* [What Does It Do?](/en/latest/en/latest/ExtNsT3AF/WhatDoesItDo/Index) — Feature overview
* [Configuration](/en/latest/en/latest/ExtNsT3AF/Configuration/Index) — Extension Configuration keys
* [Helpful Links](/en/latest/en/latest/ExtNsT3AF/HelpfulLinks/Index) — External documentation and API portals