# Transit AI > Cross-platform SSH client with a read-only AI assistant for > investigating network gear (switches, routers, firewalls). Every > command the AI proposes passes a per-vendor permit list AND your > explicit click — always both, never either. Transit AI is closed-source commercial software. The architecture is documented in detail; the source is not published. The AI has a fixed four-item menu (list open sessions, read scrollback, propose a command, ask a clarifying question) and has no programmatic path to read a user's credentials — an automated check fails the build if anyone tries to add one. ## Documentation - [Docs index](https://transitai.app/docs/): Navigation entry point for the documentation. - [Features](https://transitai.app/docs/features/): SSH client + AI features, including multi-session tabs, output redaction, BYOK, session export, and console cable support. - [Security model](https://transitai.app/docs/security/): The three inviolable rules, the AI's credential firewall, output redaction, host-key trust-on-first-use, and cloud isolation. - [Vendor coverage](https://transitai.app/docs/vendors/): Which network CLIs are supported and the per-vendor permit list. - [FAQ](https://transitai.app/docs/faq/): Pricing, platforms, security, and operational questions. ## How-tos - [How-tos index](https://transitai.app/docs/how-tos/): Step-by-step guides to using Transit AI. - [Sign in](https://transitai.app/docs/how-tos/sign-in/): First-time sign-in to Transit AI Cloud. - [Create an auth profile](https://transitai.app/docs/how-tos/create-auth-profile/): All six credential backends (OS keyring, SSH agent, 1Password, env var, SSH key file, age-encrypted file). - [Find your user ID and organization ID](https://transitai.app/docs/how-tos/find-your-ids/): Locate identifiers needed for support tickets. - [Add a device](https://transitai.app/docs/how-tos/add-a-device/): Put a host in the inventory. - [Connect to a device](https://transitai.app/docs/how-tos/connect-to-a-device/): Three equivalent ways to open a session. - [Edit a device](https://transitai.app/docs/how-tos/edit-a-device/): Change host, port, vendor, group, auth profile, terminal preferences. - [Use the AI assistant](https://transitai.app/docs/how-tos/use-the-agent/): Open the chat panel, ask questions, approve commands, use the always-allow shortcut, stop a running investigation. - [Bring your own provider key (BYOK)](https://transitai.app/docs/how-tos/bring-your-own-key/): Pro-tier BYOK setup for Anthropic or OpenAI. - [Reconnect a closed session](https://transitai.app/docs/how-tos/reconnect-a-session/): Press Enter to revive a tab. - [Split panes side-by-side](https://transitai.app/docs/how-tos/split-pane/): Two sessions in one tab. - [Connect to a console cable](https://transitai.app/docs/how-tos/console-cable/): USB-to-serial out-of-band access. - [Export a session's scrollback](https://transitai.app/docs/how-tos/export-a-session/): Save to disk with optional age encryption. - [Turn on syntax highlighting](https://transitai.app/docs/how-tos/syntax-highlighting/): Per-device keyword colorizing. - [Turn on quick copy/paste](https://transitai.app/docs/how-tos/quick-copy-paste/): Auto-copy on select, right-click and middle-click paste. ## Per-vendor permit lists - [Juniper Junos](https://transitai.app/docs/vendors/junos/): Junos OS — allowed show/ping/traceroute, blocked configure/commit/start shell. - [Cisco IOS](https://transitai.app/docs/vendors/cisco-ios/): Classic IOS — write/copy/reload/tclsh blocked. - [Cisco IOS-XE](https://transitai.app/docs/vendors/cisco-ios-xe/): IOS-XE with guestshell, app-hosting, and platform-software image blocks. - [Cisco NX-OS](https://transitai.app/docs/vendors/nxos/): NX-OS with run bash, python, source, vsh shell escapes blocked. - [Arista EOS](https://transitai.app/docs/vendors/arista-eos/): EOS with bash, python, event-handler, agent, daemon escapes blocked. - [Palo Alto PAN-OS](https://transitai.app/docs/vendors/pan-os/): PAN-OS firewalls — debug software shell blocked, transfer commands blocked. - [Generic Linux / Unix](https://transitai.app/docs/vendors/linux/): Unrestricted mode — every command needs your explicit click, always-allow shortcut unavailable. ## Optional - [Full Markdown content](https://transitai.app/llms-full.txt): All doc pages concatenated as Markdown for LLMs that ingest full text. - [Sitemap](https://transitai.app/sitemap-index.xml): XML sitemap for general indexing.