# What the design asked for and this build has not got

The Avalonia client's interface was rebuilt from a Claude Design project — a five-screen spec covering
the chrome, hosts and terminals, file transfer, the vault, teams, and preferences.

> ## The second import — v2, phone
>
> A later design in the same project, **DodoSSH Android v2**, is what the phone head now draws: eight
> screens, a bottom bar of four with the rest behind MORE, and a new palette. It has been imported, and
> this section is the same accounting for it. The desktop's own v2 has **not** been imported — only its
> palette, because the palette is shared and the two heads may not disagree about a colour.
>
> **The palette went from green to blue, and one colour changed meaning rather than value.** Green used to
> be the accent, so `Ellipse.dot.live` filled with `Accent` and "the thing to press" and "a shell is open
> here" were the same colour by construction. v2 makes the accent `#5B8CFF` and keeps a green, `#3DDC97`,
> for status alone. That is now `Live`, and nothing merely interactive may use it. The accent is also two
> colours — `Accent` fills, `AccentText` writes — which is what stops a row of chips reading as a row of
> primary actions.
>
> **Five destinations moved under MORE and four of them were built**: snippets, SFTP, S3 and logs, each
> over a view model that already existed, plus preferences. `ShellScreen` gained `More` and `Buckets`;
> SFTP and S3 are one screen over one `TransfersViewModel`, differing only in which picker they offer.
>
> | v2 element | What ships instead |
> | --- | --- |
> | The **FORWARDING** screen: local/remote/dynamic rules, toggles, bytes transferred | **Nothing, said out loud.** `ISshConnection` offers `OpenShellAsync` and nothing else, so there is no tunnel for a rule to run through; `SyncEntityType.PortForward = 9` is still reserved and still unused. The MORE screen carries a paragraph naming the absence, for the reason the desktop keeps TEAMS in its rail. |
> | `23 ms · fwd 5432` on the terminal's connection line | The account and endpoint actually dialled. There is no RTT measurement in SSH.NET and nothing forwards anything. |
> | `ED25519` badge and `SHA256:kQ9f…Zw2M` on every keychain card | `Detail`, which is what is genuinely known *about* an item. Unchanged from the first import: no algorithm field, no fingerprint, and computing either means parsing armour the type stores verbatim. |
> | An `agent` chip on a key | Omitted. There is no agent of any kind — see the first import's Vault section. |
> | Snippet cards footed with `edge-eu-1 · today 10:58 · exit 0` | The command and its badge. Nothing records where a snippet ran, when, or what it returned; the shell it is typed into never reports back. |
> | Logs: a blinking **FOLLOW** pill over a live `tail` | A REFRESH button. These are the keychain's own synced audit records, written once at close and read when the screen opens — there is nothing to tail. |
> | Logs: `ALL 8 / INFO 5 / WARN 2 / ERROR 1` and per-host chips | The real two-way choice: connections, or keychain activity. A connection record is not a syslog line and carries no level, and neither log filters by host. |
> | SFTP: the `LOCAL / REMOTE` toggle | One remote pane. Scoped storage means there is no browsable local filesystem, which `docs/android-port.md` decided before any of this was built. |
> | SFTP: the transfer card, and moving files at all | ◆ **Browsing, opening and deleting only, and the screen says so.** Both transfer commands exist and both work — against the local pane. `QueueDownloads` writes to `Path.Combine(LocalPath, name)`, and `LocalPath` starts at `SpecialFolder.UserProfile`, which on Android is the application's own private directory: a download would report success and leave the file somewhere the person who asked for it cannot open. That is worse than not offering it, because a refusal is visible and a file in `/data/user/0/…` is not. The queue is not drawn either, since nothing on this head can put anything in it. Both return with the document picker. |
> | S3: `96 objects · 412 GB` and `lifecycle: IA after 7d` | Omitted. Neither a bucket total nor a lifecycle policy is fetched; the listing is what `IRemoteFileStore` returns. |
> | A `+` floating button on **HOSTS** | **Shipped in v3.** It was omitted twice, on the grounds that it would open a host editor this head had not got — and that was true until one existed. It raises a sheet rather than a form, because "add" on this screen is two operations: a host, or a group to file hosts under. |
> | A 14px rounded inset around the terminal | Not drawn. The renderer is a native child view composited above everything Avalonia draws, so a rounded frame behind it clips nothing. What the design was after comes from the page's own background, which is the design's `#171A26`. |
> | Instrument Sans / Fira Code | Inter and the system monospace stack, as before and for the same reason — see the note on `MonoFont` in `Palette.axaml`. |
> | A theme toggle (`☀`) in the header, and the desktop v2's light theme | Omitted. There is one theme by decision, and a switch with one position is a control that does nothing. |
>
> ## The desktop's v2
>
> **DodoSSH v2** — the desktop design in the same project — has since been imported too, dark only. Its
> light theme is not built: the light accent is `#6D5AE6`, a different hue rather than a tint, so it needs
> every colour doubled, a theme variant to switch on, the renderer's page switching with it, and contrast
> checked twice. That is a piece of work, not a setting, and it is separable from the layout.
>
> **The window's minimum grew, and by exactly what v2 added.** The 54-pixel icon rail became a 190-pixel
> labelled sidebar and the chrome went from 72 tall to 86, so `880x560` became `1016x574` — leaving every
> screen the same `826x464` it was designed against. Four of the tables stop fitting at 690 wide, so
> widening the sidebar without widening the window would have broken them where the layout suite was not
> looking.
>
> **Buckets became a destination** rather than a toggle inside the files screen, matching the phone: the
> `HOST` / `BUCKET` pair is gone and `ShellScreen.Buckets` draws the same `TransfersScreen` with the other
> picker. That also settled an old disagreement — `TotalItemCount` excluded buckets and disagreed with the
> list under it. It counts every kind now, tags included.
>
> | v2 element | What ships instead |
> | --- | --- |
> | The **FORWARDING** screen, the `⇄ N forwards` chip on the session strip, and the host detail's FORWARDING card | Nothing, as on the phone and for the same reason. Three surfaces for a feature the SSH layer does not have. |
> | The host detail's 2×2 card grid — IDENTITY fingerprint, TAGS, LAST SESSION | Not drawn as a grid. There is no fingerprint on a stored key and no last-used timestamp at any layer, so two of the three cards have nothing behind them. Tags are real and are drawn — as chips on the row and a picker in the editor, which is where they are used rather than in a card beside two empty ones. |
> | The keychain detail's public-key block, USED BY hosts, and **Rotate** | The detail pane as it stands. Copy public key is real and already there; rotation is not a thing this client can do. |
> | Logs: **FOLLOW**, the severity chips, and `tailing via ssh · journald + files` | The two logs it really has. Same as the phone — these are synced audit records, not a tail, and the footer sentence describes a feature rather than the screen. |
> | Snippets: **RUNS ON** host tags and a last-run line | The command and the two buttons that name the terminal they type into. |
> | The session footer: latency, forwards, `utf-8 · xterm-256color` | Omitted. The first two have no source; the third is a constant, and a constant printed as though it were a reading is decoration. |
> | The terminal as an inset rounded panel | Not drawn, for the reason the phone does not draw it: it is a native child window that composites above everything Avalonia paints, so a rounded frame behind it clips nothing. |
> | **Split ⌘D** | Still omitted — the renderer stacks panes and shows one; tiling needs a pane geometry it has not got. |
> | macOS traffic lights, and `⌘K` | The window's own minimise/maximise/close, and `CTRL K`. Development is Windows-first and the chrome is `BorderOnly` for a documented reason. |
> | No status bar | Kept, and cut down to the one thing the titlebar does not now carry: `Vault.Status`, which is the only channel this application has for saying a save failed or a merge picked a winner. The design is a mock-up of a working afternoon and has nowhere to put a sentence like that. |
> | The sidebar's five destinations, and a **Team vault** card at its foot | Seven destinations, because Pins, Teams and Preferences are built screens and dropping their entry would strand them — and two fewer than v2 shipped with, because SFTP and S3 became tabs; see v3 below. The card is not drawn: it is a second route to a screen already in the list, carrying a seat count nothing here produces. |
>
> ## The desktop's v3
>
> A third pass, and the smallest of the three: it moves furniture rather than adding screens. Nothing in it
> needed a layer below `client-app`, which is why it has no table of its own — there was nothing to omit.
>
> **The tab strip became the window's, not the terminal's.** Three fixed tabs sit at its head — Vaults,
> SFTP, S3 — and terminal tabs follow them. SFTP and S3 left the nav rail to get there, which is the one
> semantic change: they are the two destinations you *stay in* while something runs, and a rail entry is
> for somewhere you go and come back from. The rail is drawn under Vaults alone, so SFTP, S3 and a terminal
> each get the full window width instead of `826`. See `MainWindowViewModel.IsVaultsTab` for why the tab is
> a page test rather than a fourth `ShellSurface`.
>
> **The hosts screen became a grid of cards** — groups above, hosts below — and the 268-pixel host sidebar
> went with it. That column was choosing among forty machines *and* editing one of them at two-thirds
> width; the grid took the first job at full width and a 304-pixel right-hand drawer took the second. The
> drawer collapses when nothing is selected, which is most of the time. Pressing a group card narrows the
> grid to that group; `SHOW ALL` is the way back.
>
> **The type scale went up a point and the text ramp went white.** `#E3E7F4` was a blue-tinted white on
> blue-black surfaces, which costs contrast twice — once for being darker than white and once for sharing
> a hue with what it is drawn on. Every step of the ramp moved with the top, so the intervals the design
> chose are kept. Both are in the shared palette, so the phone has them too.
>
> | v3 element | What ships instead |
> | --- | --- |
> | The hosts toolbar's view-mode switch (grid / list / table) | One view. A switch between three layouts where only one is built is two disabled buttons. |
> | The hosts toolbar's tag filter, calendar and share control | Omitted. There are no saved filters, nothing in a vault carries a date, and sharing outside a team vault does not exist. Tags are real and are searched by being read off the cards. |
> | **Serial** beside **Terminal** in the toolbar | Omitted. Every session here is an SSH channel; a serial transport is not a button, it is a second session kind. |
> | The strip's tabs inside the titlebar row, with a hamburger | A row of its own under the titlebar. The titlebar already carries the drag region, the search box, the sync light and three window controls, and the strip scrolls — putting both on one 44-pixel row would make the thing that scrolls fight the thing that drags. |
> | A count on the S3 tab | Omitted. The rail entry it replaces carried one; a number on two of five tabs reads as a fact about those two rather than as the tab's own state, and a terminal tab has nothing to count. The count is on the S3 screen. |

Most of it landed. This file is the rest: every element of that design with nothing behind it, which
project each piece would have to land in, and **what the shipped interface does instead**. That last
column is the important one. This codebase states its limits rather than implying them — the README does
it for revocation, for relay session recording and for what locking does not do — so nothing here was
rendered with invented data to make a screenshot look finished. Where a feature does not exist, the
interface either omits it or says so.

Read alongside [the milestone plan](../README.md#milestones). Most of what follows is not a defect; it is
M2 and M3 arriving in a design before it arrives in the code.

## The shape of the problem

Three facts explain nearly every row below.

**An SSH connection here opens exactly one channel.** `ISshConnection` offers `OpenShellAsync` and nothing
else (`src/DodoSSH.Client.Ssh/SshConnection.cs`). No port forwarding, no ProxyJump. That one fact removes
the `FORWARDS` chip, the status bar's port list, and every `via bastion-eu` in the design.

It used to remove the file-transfer screen too. M2 did not lift the restriction — it worked around it:
file transfer is a *separate connection* rather than a second channel, because SSH.NET's `SftpClient` owns
its own transport. See [File transfer](#file-transfer-the-designs-sftp-screen), which is the one place in
this document where what shipped differs from what the row predicted.

**~~Teams are schema and nothing else.~~ Built in M3.** The `team` and `team_membership` tables were there
from the first migration with nothing reading them, and `VaultAccessService.ResolveAsync` denied every vault
that was not the caller's own. Both changed in M3 and neither needed a migration, which is what carrying two
unused tables bought. See [Teams](#teams). What has *not* changed is the split underneath: the server
decides what it will serve, and only a client can decide who can read it — so "shared with" is two facts on
this screen, not one.

**The client has no preferences store.** It writes exactly two files — `cache.db` and `device.key` — and the
cache has six tables, none of them settings. Nothing on the design's TERMINAL preferences panel can be
saved, and there is no frame on the terminal data plane that would carry a change to the renderer anyway.

**Three things the design did not ask for and this build now has.** A key can be generated in the client
rather than pasted in (`SshKeyGenerator`, and the `openssh-key-v1` container is written by hand — see
`OpenSshKeyWriter` for why there was no alternative and why it is written unencrypted). Hosts can be
imported from `~/.ssh/config` (`DodoSSH.Client.Import`; it reads no key material, and `ProxyJump` is
recorded as intent because the SSH layer still has no jump hosts). And the file-transfer screen takes drag
and drop in four directions — remote to Explorer is the one that does not ship, because it needs a virtual
file the platform layer cannot supply; see `docs/manual-checks.md`.

**The rail has six destinations, not five.** The design gives host keys no slot at all. They were a fourth
category on the keychain screen for a while and are now a screen of their own, `KnownHostsScreen`, because
the other categories are things somebody creates and edits and a pin is a decision recorded at the moment
of connecting — and because comparing an untruncated fingerprint against a published one needs a column
layout the shared table could not give it.

**The product surface says "keychain" and everything under it says "vault", deliberately.** The nav rail,
the unlock and enrollment copy, and every sentence a user reads now call the encrypted store a keychain.
The wire does not: the route is `/api/v1/vaults/{vaultId}`, the tables are `vault` and `vault_key_grant`,
the CLR types are `VaultViewModel` and `VaultSession`, and `docs/crypto.md` — which is normative — says
"vault key". Renaming those would break every deployed client, need a table-rename migration, and put
`CryptoSpec.AadResourceType.Vault = 3` inside the blast radius of a find-and-replace, where changing it
would make every item in every vault permanently unreadable. So the split is the answer rather than a
stage on the way to one: read "vault" in this repository as the name of the cryptographic object, and
"keychain" as what the product calls it.

One thing cuts the other way and is worth knowing before planning any of this: **the wire protocol already
reserves the slots**. `SyncEntityType` (`src/DodoSSH.Contracts/SyncEntityType.cs`) has `HostGroup = 4`,
`Tag = 5`, `HostTag = 6`, `HostCredential = 7`, `Snippet = 8` and `PortForward = 9` — reserved, unused, and
already covered by the AAD resource-type table. Groups, tags and snippets are new item types on an existing
protocol rather than a protocol change.

Two of those slots are now taken. `HostGroup` and `Snippet` shipped as full item kinds — a table, an EF
configuration, a server kind that refuses every plaintext field, a codec, a merge, a cipher and a repository
— and neither needed a contract change, which is what the reservation bought. `Tag = 5` has since shipped the
same way, for the same cost, and is the clearest case the reservation ever paid for: a whole item kind, a
table, a migration and an AAD arm, with `PublicAPI.Unshipped.txt` untouched.

`HostTag`, `HostCredential` and `PortForward` are still reserved and still unused — and `HostTag` is now
reserved *against a decision* rather than pending one. Which hosts wear a tag is a set of ids inside each
host's payload, not a join: the one thing a join buys over that is two machines tagging the same host
without either losing, and the client's per-key three-way merge already gives it. A second item type would
be a second table and a second pass through every rule in this file, for nothing.

**A third was added for something the design never mentioned**: `ObjectStore = 13`, an S3-compatible bucket
and the keys that reach it. It is a keychain item like any other — the endpoint and the secret access key are
both inside the payload, and the server refuses every plaintext field including the endpoint, because for
everybody self-hosting that is an address on their own network.

What made it cheap is that the transfer queue never needed anything SSH-specific: `IRemoteFileStore` was
lifted out of `ISftpSession` with only the host key left behind, and a bucket is the same contract with a
different implementation. Three things a bucket genuinely cannot do are refused with a reason rather than
approximated — there are no directories (only keys with slashes in them, and a marker object for an empty
one), no resumable upload (an object cannot be written from the middle), and no atomic rename (a copy and a
delete). Downloads *do* resume, because a ranged GET is part of the protocol.

**Two members were added rather than claimed**: `ConnectionLogEntry = 11` and `ActivityLogEntry = 12`, the
first additions to `SyncEntityType` since it was frozen. Logs are synced items rather than local files
because they are audit records — an administrator has to be able to read a shared vault's history once teams
land, and a log kept only on the machine that produced it can be neither read nor trusted by anybody else.
ADR 0001 records what that costs in metadata; it is not free and it is not hidden.

Three properties are worth knowing before touching them. An entry is **written once, at close** and never
updated, which is what lets a synced log avoid a merge entirely. Neither kind is **audited**, which is the
guard that stops the activity log producing an entry for every entry it writes. And both are **excluded from
the pending-change count and from what a background sync announces** — those numbers answer "how much of my
work is not yet safe", and a log entry is not somebody's work.

**One plaintext field was taken away rather than used.** `SyncPlaintextFields.GroupId` has existed since the
contract was frozen and `host.group_id` since the first migration; no client ever wrote either. Group
membership is inside the encrypted payload instead, the column is dropped, and the server now refuses the
field with a reason — because what it would have handed the operator is a clustering of every user's estate,
and ADR 0004's test for a plaintext concession is that the server *cannot function* without it. The wire
field cannot be removed and stays as a permanently refused member; `SyncEndpointTests` holds the refusal.

---

## Chrome — titlebar, nav rail, status bar

| Design element | Layer | What it would take | What ships instead |
| --- | --- | --- | --- |
| Org chip `dodotech / platform` | contracts + server | An *organisation* above teams, which does not exist — `VaultSummary.TeamId` is no longer always null since M3, but a team is not an org and there is exactly one tenant per deployment. | The vault's own name, and the account this machine is enrolled as. Team names are on the TEAMS screen, where they are about something. |
| `SYNCED` dot, always green | client-app | Nothing — the design's claim is simply unconditional. | Green **only** when a connection is held, the last sync pass actually reached the server, and the outbox is empty; otherwise `UNREACHABLE`, the count of changes still waiting, or `OFFLINE`. Holding an `IVaultServer` proves a sign-in once succeeded and nothing more, so a laptop whose lid has been shut all afternoon still has one — reachability comes from the outcome of the last pass. A permanently green light is the same as no light. |
| `VAULT SYNCED 11:02` | client-session | `StoredSyncState.LastPulledAt`/`LastPushedAt` are persisted, but `VaultSession` exposes the store as `internal`. A property away. | Omitted. The one honest sync fact — the outbox depth — is in the titlebar and the status bar. |
| `⌘K` command palette running commands | client-domain | A snippet or saved-command item type (`SyncEntityType.Snippet = 8` is reserved). | Ctrl+K opens a real host search that connects on Enter. The box says "search hosts", not "search hosts · run command". |
| Status bar `· via bastion-eu` | client-ssh | Jump-host execution. See below. | Omitted. |
| Status bar port forwards | client-ssh | Port forwarding. See below. | Omitted. |
| Status bar `sftp · 2 transfers` | client-app | Nothing now — file transfer is built. What is missing is the count reaching the status bar, which is a screen away from where the queue lives. | Omitted from the status bar. The queue itself is on the FILES screen, with a row per transfer. |
| Status bar `locks in 09:41` | client-app | An idle auto-lock. See preferences below. | Omitted. |
| IBM Plex Mono / IBM Plex Sans | ui | Shipping the font files as `AvaloniaResource` and registering them. The design loads them from Google Fonts, which a desktop app cannot. | Inter (already embedded) for prose, and the system monospace stack the terminal already names. Named once in `App.axaml` as `MonoFont`, so the substitution is reversible in one place. |
| `⌘K`, `⌥↵` | ui | Nothing; the design is Mac-flavoured. | `CTRL K`. Development is Windows-only today (`docs/platform-flags.md`). |

**Also worth knowing:** custom chrome went in as `SystemDecorations="BorderOnly"`, not by extending the
client area. `ExtendClientAreaChromeHints` was removed in Avalonia 12, so extending leaves the system
caption buttons and window title drawn on top of the application's own — two sets of window controls, and
"DodoSSH" printed twice. Measured, not assumed.

---

## Hosts + terminal

| Design element | Layer | What it would take | What ships instead |
| --- | --- | --- | --- |
| Tag chips (`nginx`, `eu`, `pg16`) | client-domain | A tag item type, and a way to put one on a host. | **Shipped.** `Tag = 5` is a live item kind and `HostSecret.TagIds` names them, merged per tag so two people tagging one host both keep theirs — which is what `HostTag = 6` was going to buy, so it stays reserved and unused. Chips are drawn on host rows on both heads and toggled in the host editor, which also creates one inline; renaming and deleting are a TAGS category on the keychain screen. The filter box still searches name, address and notes only — a chip is read rather than typed. |
| Groups `PRODUCTION` / `STAGING` / `PERSONAL` | client-domain | A host-group item type (`HostGroup = 4`, reserved) or a group field on `HostSecret`. | **Shipped**, as both: `VaultHostGroup` is a synced item kind and `HostSecret.GroupId` names one. Nested in the data and drawn flat — a group carries a `ParentId` and the defaults its hosts inherit, and the sidebar still emits one heading per group in label order with no indentation. A keychain with no groups renders exactly as it did before — one flat list, no headings. |
| Group badge `TEAM·PLATFORM` | server | **Built in M3.** | The vault's name on each row, and the personal vault ordered first. Not the team's name: two of a team's vaults would then carry the same badge and the badge would be naming the wrong thing. Distinct from the groups above, and deliberately so — a group is a shelf the user chose, a vault is who can read the item. |
| Groups on a **team's** hosts | client-domain | A vault id on each group row for rename and delete, and a way to tell two vaults' identically-named groups apart in a list with one heading per group. | **Half shipped, and the half that shipped had to.** Every readable vault's groups are now read into the resolution map, because a group lends a port, a username and a binding — so a host whose group went unread would silently dial 22 as nobody while the machine is on 2222 as `deploy`. A missing heading is cosmetic; a missing port is a connection to the wrong place. The editable list is still the active vault's alone, so a host a teammate filed still shows under UNGROUPED and cannot be renamed or unfiled from here. |
| Per-host status dot, three colours | client-ssh | The amber state would mean "reachable but not connected", and nothing here ever probes a host. | Two states, both real: green when a terminal is open on that host, grey when not. |
| `· ⤷ bastion-eu` in the host subtitle | client-ssh | **Jump hosts are data-only.** `HostSecret.JumpHostIds` is a `JumpChain` that is stored, encrypted, synced and three-way merged — and nothing reads it at connect time. `SshConnectionRequest` carries one host. | Omitted. The stored chain is preserved untouched by every edit. |
| `SPLIT ⌘D` and side-by-side panes | client-ssh + ui | The renderer stacks panes and shows one (`terminal.css`: `.pane { position:absolute; inset:0; display:none }`). Tiling needs a real pane geometry and a splitter. | Omitted. Tabs ship instead, over the same one-WebView multiplexing. |
| `⇄ FORWARDS · 2` | client-ssh | Port forwarding. `SyncEntityType.PortForward = 9` is reserved; nothing in the SSH layer forwards anything. | Omitted. |
| `SNIPPETS` panel, `↵` to run | client-domain | A snippet item type (`Snippet = 8`, reserved). | **Shipped**, as a screen rather than a panel. `↵` is per snippet and off by default: inserting types the command at the prompt and stops, because nothing here can tell whether the terminal is at a prompt at all. |
| Broadcast to all panes (`⌥↵`) | client-ssh | Input is routed strictly by session id in `TerminalDataPlane.Dispatch`; there is no fan-out. Needs splits first. | Omitted. |
| Pane header `24ms` | client-ssh | Round-trip measurement. SSH.NET offers no RTT API. | Omitted. |
| Pane header `aes256-gcm` | client-ssh | **The closest miss on this list.** `SshNetConnection` holds the `SshClient`, so `ConnectionInfo.CurrentServerEncryption` is right there — it just is not on `ISshConnection` or surfaced by `TerminalWorkspace`. | Omitted; the tab strip shows the account and endpoint actually dialled. |
| Pane header showing the running command and `following` | client-ssh | The host moves opaque bytes and never parses terminal output. Would need shell integration (OSC 133) on the remote. | Omitted. |
| A `local · zsh` tab | client-ssh | Every session here is an SSH channel. Needs ConPTY and a second session kind. | Omitted. |
| Tab strip `+` button | ui | Not missing so much as redundant: the real operation is *select a host, press Connect*, which the hosts grid already is. | **Shipped**, as the palette rather than a menu: it opens what Ctrl+K opens, so the strip and the shortcut are one way of doing one thing. A `MenuFlyout` offering "SSH" and "local shell" is the nicer answer and is not verifiably safe above the terminal's native child window — and there is no local shell to offer. |
| Terminal font size (`--termfs`, 11–16px) | client-storage | See preferences. | Fixed at the renderer's 13px. |

---

## File transfer (the design's SFTP screen)

**Built in M2.** The screen ships: two directory panes, a breadcrumb trail on each, and a queue that moves
one file at a time with progress, throughput and resume. What follows is what it does *not* do, and one
thing this document got wrong before it was built.

**The correction.** The row below used to say an SFTP subsystem channel on `ISshConnection` was what it
would take. SSH.NET does not offer that: `SftpClient` derives from `BaseClient` and owns its own transport,
and there is no supported way to hand it a session an `SshClient` already has. So the transfers screen
**opens a second authenticated connection** to the host rather than a second channel on the terminal's. That
is visible to a user — the host records a second login, and a host whose password is typed each time asks
for it again on this screen — so it is named for what it is: `ISftpSessionFactory.OpenSftpAsync` is a
connect, and it goes through the same host key gate, the same pin and the same two refusals a shell does.

| Design element | Layer | What ships |
| --- | --- | --- |
| SFTP itself | client-ssh | `ISftpSession` over SSH.NET's `SftpClient`: listing, stat, offset-based read and write, mkdir, delete and rename. Delete is deliberately **not** recursive. |
| Remote listing with `NAME/SIZE/MODIFIED/PERMS` | client-ssh | All four. `PosixMode` renders `drwxr-xr-x` from the bits SFTP hands over; setuid, setgid and sticky are not shown, because SSH.NET does not surface them and `rwx` where `rws` is true would be worse than nothing. |
| Local listing | client-transfer | `LocalDirectory`, which is where this client's `System.IO` now lives. `PERMS` is blank on the local side rather than filled with a plausible-looking POSIX mode that is not a fact about a file on Windows. |
| Transfer queue, progress, throughput | client-transfer | `FileTransferQueue`. One transfer at a time, so the rate on a row is the rate of the link rather than a share of it. Throughput is measured over a half-second window, not averaged since the start. |
| `resume supported` | client-transfer | **Within a run of the application.** Every transfer writes to a `.dodossh-part` file beside its destination and is renamed into place at the end, so an interrupted one can never be mistaken for a finished one, and `RESUME` carries on from the part file's own length. A part file found at startup is *not* resumed: nothing records what wrote it, and resuming on the strength of a name matching is how a corrupt artefact gets delivered with nothing reporting a failure. Making it survive a restart needs the preferences store this client has not got — see below. |

| Design element | Layer | What it would take | What ships instead |
| --- | --- | --- | --- |
| Per-host last directory | client-storage | Somewhere to persist two panes' navigation state. There is still no settings table. | The remote pane opens on the account's home directory, which the server canonicalises during the handshake; the local pane opens on the user profile. |
| `sftp over bastion-eu` | client-ssh | Jump hosts, as above. `HostSecret.JumpHostIds` is still stored, synced, merged and read by nothing. | Omitted. |
| Overwriting a file that is already there | ui | A prompt, which means a modal this window has no idiom for. | Refused, with the name that is in the way. The remote pane has DELETE and MKDIR so the refusal is not a dead end. |
| Dragging between the panes | ui | Drag-and-drop between two `ListBox`es, plus a drop target that is a directory rather than a row. | Two arrow buttons between the panes, pointing at the pane the file is going to. |
| Transferring a directory | client-transfer | Recursive enumeration on both sides, and a policy for what a partial directory means. | One file at a time. A directory cannot be selected as a transfer source. |

**Not to be reached for:** `CreditWindow` is a 256 KiB flow-control window for terminal output, not a
transfer primitive. The queue does its own 64 KiB copy loop and shares nothing with the terminal data plane.

---

## Vault

The screen ships and is real: four categories over the vault's four item types, one table, a detail pane,
and both editors. What follows is what the design drew around them.

| Design element | Layer | What it would take | What ships instead |
| --- | --- | --- | --- |
| `ACCESS` column and `your access → CONNECT-ONLY` | server | Per-item ACLs. `EncryptedPayload.DataKeyId` is documented as the seam for per-item grants **in M5**. `VaultSummary` does carry an opaque `int Permissions`, but nothing gives the bits a meaning on the wire — `PermissionFlags` itself lives in `DodoSSH.Domain` — and those are per *vault*, never per item. There is no `ConnectOnly` role in `TeamRole` at all. | Omitted. The column shows sync state instead — whether a change is still sitting in this machine's outbox — which the design had no column for. |
| `SHARED WITH · 6` avatars | server | **Built in M3**, minus the avatars — no picture is stored anywhere. `GET /api/v1/vaults/{id}/grants` lists who holds a key. | The list lives on the TEAMS screen, beside the members it is about, rather than as a count on an item row: a grant is per *vault*, and putting a number on an item would imply per-item sharing, which is M5. |
| "Private key never leaves the vault. Sessions sign through the team agent (dodod)" | client-ssh | **Both sentences are false here, and the second cannot be made true by this architecture.** There is no agent of any kind, and the connect path decrypts the private key and hands the bytes to SSH.NET. | Omitted. The key editor already says what is true: the key and its passphrase are encrypted here and never reach the server in a readable form. |
| Scope rail: `PERSONAL` / `TEAM · PLATFORM` / `TEAM · DATA` | server | **Built in M3.** `VaultAccessService.ListAsync` resolves team membership, so a session can hold several vaults. | Not a rail, because it would be a selector with nothing to select: every list on the screen already spans every vault this session can read. What replaces it is a picker for where a *new* item is filed, which is the only vault question with an answer. |
| `SCOPE` column | server | **Built in M3.** Scope is a property of a vault, never of an item, and that has not changed. | Each row names the vault it is in, and rows are grouped by vault. |
| `LAST` column (`11:02`, `1d ago`) | contracts | No last-used timestamp at any layer. `VaultItem<TSecret>` is `(id, secret, version, three sync flags)`. | Omitted. |
| `FINGERPRINT` for SSH keys | client-domain | `SshKeySecret` has no fingerprint field, and computing one means parsing key formats the type deliberately stores verbatim. | The `DETAIL` column carries what *is* known — whether a passphrase and a public half are stored. Pins show their real fingerprint, in full and untruncated. |
| `•••• rotated jul 14` for passwords | client-domain | `CredentialSecret` has no rotation date or password age. | The account the password is for. |
| `IDENTITIES` category | contracts | A new item type, not even reserved in `SyncEntityType`. | Omitted. |
| `CERTIFICATES` category, `expires 2026-09-01` | contracts | Same ladder, plus certificate parsing. | Omitted. |
| `18 items · 12 shared` | server | The sharing stack. | `N items · N not synced`, counted over the rows on screen. |
| `added by anna@dodotech.dev` | contracts | The server records `CreatedByUserId`, but `SyncChange` carries no actor field and no other user's name is fetchable. | Omitted, and the detail pane says in one line that items record no author, no timestamps and no sharing. |
| `created 2026-03-14` | client-sync | Recoverable in principle — entity ids are UUIDv7 and carry a timestamp — but nothing surfaces it. | Omitted. |
| `TEST CONNECT` | ui | Connecting is host-scoped, not credential-scoped: there is nothing to test a credential *against* without a host. | Omitted. |
| `REVOKE` | server | **Built in M3**, as WITHDRAW KEY on the TEAMS screen — because there are now grants to revoke, and a grant is what it acts on. ADR 0001 constrains how it is presented, and it is: the message says it blocks future reads only, and that what they already hold is unaffected. | On this screen, still Delete, named for what it does. Deleting an item and withdrawing somebody's key remain different acts. |
| `SSH KEY · ED25519` | client-domain | No algorithm field, and deriving it means parsing the armour. | The type without the algorithm. |
| One `+ ADD CREDENTIAL` button | ui | — | Two buttons, one per kind that can be added. "Credential" is a specific item type in this codebase (a username and a password), so using it as an umbrella word would collide with the vocabulary. |
| — | — | — | **`HOST KEYS` is the reverse case:** a fully-backed, shipped category the design had no slot for. It is in the rail. |

---

## Teams

**Built in M3.** The screen ships: a team list, a members table, the team's vaults, and the two buttons the
whole design was really about — add a member, and share a vault key. What follows is what it still does not
do, and one thing this document got wrong before it was built.

**The correction.** The rows below used to describe a screen with nothing behind it, on the grounds that
`VaultAccessService.ResolveAsync` denied every vault that was not the caller's own. That is now the one
place that changed, exactly as its remark predicted, and no migration was needed: `team`,
`team_membership`, `vault.team_id` and `vault_key_grant` have all been there since the first migration.
What the row did not anticipate is that the interesting half is not the endpoints at all. It is that
**membership and readability are different things**, and the screen is arranged around saying so.

| Design element | Layer | What ships |
| --- | --- | --- |
| The team itself | server | `POST/GET /api/v1/teams`, plus members, roles and team vaults. Ids are client-chosen, so a create whose response was lost is safe to repeat. |
| Shared vaults | server + client | A team owns vaults; each is created with the creator's own grant, because a vault with no grant is a container nobody can open. |
| Roles | contracts + server | `TeamMemberRole` on the wire, numerically pinned to `DodoSSH.Domain.TeamRole` by a test. Viewer reads, Member writes, Admin and Owner also share and administer. |
| Members table | server | `TeamMemberSummary`, and a directory that resolves an exact email to a public key. |
| Sharing an item | client | `VaultSession.ShareVaultAsync`: verify the recipient's key against the key log, wrap, sign, record. The server stores the wrap and the signature and can check neither. |

| Design element | Layer | What it would take | What ships instead |
| --- | --- | --- | --- |
| `CONNECT-ONLY` role | — | Nothing that would be true. Connect is a user-interface hint, not a boundary: SSH terminates on the client, so a session needs the credential's plaintext on that machine. See ADR 0001. | Four roles, all of which are enforceable. `Connect` rides along with `Read` and is documented as a hint. |
| `2FA ENFORCED` and the per-member 2FA column | server | No two-factor concept exists anywhere — the only hit in the whole worktree is an aside in `docs/crypto.md`. | Omitted. The member column carries what *is* known and matters: whether they have published a key a vault can be wrapped to. |
| `LAST ACTIVE` | server | `UserAccount.LastSeenAtUtc` is written at just-in-time provisioning and at enrollment and never on an ordinary authenticated request, so the column cannot answer "last active". | Omitted. |
| Avatars | server | No picture is stored anywhere. | Omitted; the row shows a name and an address. |
| Pending invites, resend, revoke | server | An invitation entity, a token with a lifetime, and an outbound mail path. `MembershipStatus.Invited` remains unwritten. | Adding a member resolves an address the caller types against the directory, so the account has to have signed in here once. The screen says that when the lookup finds nothing. |
| `SSO · OIDC · okta.dodotech.dev` | server | Per-team SSO. Authentication is one global JWT scheme bound to one authority. | Omitted. |
| A rekey after a membership change | client | Re-wrapping every item's data key under a fresh vault key, which only a client holding the current one can do. M5. | The vault is flagged `RekeyRequired` and the row says a rotation is owed. |
| Ownership transfer | server | A confirmation flow and a rule for what happens to the outgoing owner. | The owner cannot be removed or demoted, with its own problem code rather than a bare 400. |

> **The trap this document warned about is still a trap.** `GET /api/v1/meta` advertises
> `features: ["teams"]` *unconditionally* (`MetaEndpoints.cs`). It was meaningless when nothing implemented
> teams and it is meaningless now that everything does — it has never been computed from anything. Do not
> gate a client feature on it.

---

## Preferences

The screen ships with what is real — this machine's device key, locking, syncing, and signing out — and
lists the rest as absent rather than omitting it silently.

> **Signing out is not on the design and is here anyway.** The design has no way to leave a machine, and
> without one there is no way to hand a laptop on, to enrol a second account, or to get past a forgotten
> passphrase — which is unrecoverable by construction, so the unlock screen would otherwise be a dead end.
> It empties the local cache and withdraws the device key from the account; it cannot end the session at the
> identity provider, and says so.

| Design element | Layer | What it would take |
| --- | --- | --- |
| Any preference, saved | client-storage | A seventh table in the client cache, or a preference item type in the vault. Which one matters: the vault syncs, so a preference stored there follows you between machines, and a terminal font size probably should not. |
| Terminal font, size, cursor style, cursor blink, scrollback | client-terminal | The store, **and** a frame to carry it. `TerminalServerOpcode` has four values (`Output`, `SessionOpened`, `SessionClosed`, `SessionActivated`) and none carries an option. |
| Font family picker offering IBM Plex Mono | ui | Shipping the font, as above. |
| Audible bell | client-terminal + ui | xterm.js 6 removed `bellStyle` and `bellSound`; what remains is an `onBell` event, so the page would have to make the sound itself. |
| `GENERAL` section | ui | There is no general setting to put in it. The theme is fixed by decision, and window size is not persisted. |
| `KEYS & AGENT` section | client-ssh | **There is no agent, at all** — no own agent, no forwarding, no Pageant or OpenSSH-agent interop. |
| `SYNC & VAULT` section | client-domain | Nothing here is adjustable. The auto-sync interval is a `private static readonly` with a remark arguing for its value. |
| `SECURITY & SSO` section | server | The SSO half needs team endpoints; there is no policy for the screen to show. |
| `SHORTCUTS` section | ui | There is no keybinding infrastructure and no rebinding surface. |
| Auto-lock after idle | client-session | An activity source, a decision about what counts as idle, and — the hard part — a policy for a shell mid-job. `LockAsync`'s own remark already argues that an unattended timeout which killed a running job would be worse than the exposure it removed. |
| Require biometric to sign | crypto | Three separate falsehoods in one row. There is no signing service — the private key is decrypted and handed to SSH.NET whole, so there is no per-signature moment to interrupt; there are no connect-only keys; and per-use consent would need the key to live in the TPM, which is a different key hierarchy from the one in `docs/crypto.md`. |
| Pill toggle switches | ui | Purely presentational — `App.axaml` has no `ToggleSwitch` selector, so Fluent's default would appear un-themed beside the hairline chrome. |

---

## Two things the import changed on purpose

**Hosts left the vault column.** They have their own screen and the vault screen holds keys, passwords and
pinned host keys. This follows the design, and it is also the better split: the host list is what you look
at while you work, and the rest is what you go and manage. `VaultSection` lost its `Hosts` member and
gained `All`.

That screen was a 268-pixel sidebar beside the terminal when this paragraph was written, and v3 made it a
grid of cards with a drawer — see above. The split it describes did not change; only which half is wide.

**Tabs moved to the shell, not the vault.** Locking disposes the vault and deliberately leaves shells
running, so a tab list rebuilt per unlock would lose track of sessions that are still connected — the very
sessions the unlock screen already counts. `TerminalWorkspace` gained `SessionActivated` on the wire,
`IsSessionLive`, and a `SessionEnded` event so a tab can stop claiming to be connected.