jellyfin

name: jellyfin description: "Inspect my self-hosted Jellyfin media server: server status, users, libraries, sessions, now-playing, recently-added, item search, library counts, and scheduled tasks. Use when the user asks about Jellyfin, what's playing, who's watching, what was just added, library size, or asks to run a Jellyfin task." allowed-tools: Bash, WebFetch

Inspect my self-hosted Jellyfin server: status, users, libraries, active sessions, what's currently playing, recently added items, item search, library counts, and scheduled tasks.

Environment

Credentials are exported into the shell by sops-nix (see modules/programs/shell.nix):

JELLYFIN_URL — base URL (no trailing slash), e.g. http://192.168.1.21:8096
JELLYFIN_API_KEY — API key from Dashboard → API Keys

The jellyfin CLI reports a JSON error envelope when they are missing. Jellyfin inherits auth headers from Emby, so the header name is X-Emby-Token (not X-Api-Key).

CLI

Use the installed jellyfin CLI for common operations. It always emits a single JSON envelope with ok, command, result or error, and next_actions. scripts/jellyfin.sh remains as a compatibility shim for older workflows.

jellyfin status                                # /System/Info sanity check
jellyfin users                                 # all users with last activity
jellyfin libraries                             # virtual folders (libraries)
jellyfin sessions                              # every active session
jellyfin now-playing                           # sessions with NowPlayingItem
jellyfin recently-added --limit 20             # latest items
jellyfin item-search "<query>" --limit 25      # search Movies/Series/Episodes
jellyfin library-stats                         # /Items/Counts
jellyfin scheduled-tasks                       # task list with state
jellyfin run-task <taskId> --confirm-run-task  # POST /ScheduledTasks/Running/<id>

For anything not covered, call the API directly with $JELLYFIN_URL and the X-Emby-Token: $JELLYFIN_API_KEY header — see references/api-endpoints.md and references/quick-reference.md.

Workflow: who's watching?

jellyfin now-playing — current streams with user, device, item, and play method.
jellyfin sessions — full session list if no one is actively playing (idle clients still show up).

Workflow: what's new?

jellyfin recently-added --limit 10 — last 10 items added across the libraries the first user can see.
jellyfin library-stats — totals (Movies, Series, Episodes, etc.).

Mutations: confirm first

Always confirm with the user before:

jellyfin run-task <taskId> --confirm-run-task (kicks off a server task; some are I/O heavy)
Any custom POST/PUT/DELETE against the Jellyfin API

References

references/api-endpoints.md — endpoint reference with request/response shapes
references/quick-reference.md — copy-paste curl recipes for common ops
references/troubleshooting.md — auth, connection, and common error fixes

Notes

Header is X-Emby-Token (Jellyfin forked Emby and kept the name).
Many /Items endpoints are user-scoped — they require a userId in the path or query. The CLI picks the first non-disabled user.
Recently-added is per-user; an admin sees everything, restricted users only see their own libraries.
Jellyfin lives on the LAN. If JELLYFIN_URL is unreachable, surface that to the user rather than guessing.
Full API reference: https://api.jellyfin.org/.