weft-connections

# Connections A [connection] is an account hooked up to an outside service: an OAuth sign-in, a pasted API key, a mail server login, all one concept. The runtime's access store holds the secret, and the install keeps which connection each [access node] uses (its pick); the project's source holds neither, so a credential never reaches git history and each install (this machine, a cloud one) keeps picks of its own. What flows through the graph is an `Access` value, a sealed handle that resolves to the signed-in client when a node fires, never a secret. An [access node] is any node whose metadata carries a `service` block: that block is what makes it the place a [connection] is picked (`TelegramAccess` is one). `--compact` strips the block, so you read it in the node's `metadata.json`. Do not go by the `access` tag in the listing, which several access nodes do not carry: `CustomProvider`, for one, holds a connection exactly the same way but is tagged `provider` and `model`. One with a required, unpicked [connection] pins open in the graph (expanded, collapse disabled, "Pick a connection first") until one is picked; a `connectionOptional` node never pins. A [door] is one way of adding a [connection]: **shared** (a credential this weft holds) or **own** (the user's own); the editor flow below has both in full. ## Your part and the user's part You list stored connections and pick them. The user enters a new credential in their own terminal, and you hand them the exact command. If you catch yourself asking the user to paste a key into the chat, or typing one yourself, stop and write: "Wait. The key never passes through me." Then hand them the `weft connect` command below, with `--set-env` when the value is in their environment. For a key from another service, the user always runs `weft connect` with `--node <node>` (plus `--label`, `--on <target>` when they apply) and types the key at its hidden prompt. You never offer them the form that puts the key on the command line (`--set`), or any other place to keep it (a secrets script of their own, an env file). ## `weft connect`, the terminal flow Every Connect panel action exists as a CLI verb, so a user without VS Code is never stuck. `weft connect` with no arguments opens interactive menus: first the project's [access node]s (including nodes inside `@include`d files; each file is one target, and `--node` takes a bare id or `file.weft:node` when the id is ambiguous), then the [door]s: paste a key (hidden input), browser sign-in (URL printed, polled), the one-click shared app, `--mint` for a created own app. A pick is kept by the install, per place of the node (a file included twice gives its node two places, each picked on its own), never written into the `.weft` source: a connection's id means nothing on another install, so `--on <target>` picks for that one. A connection written in the source (`account: {"id": ...}`, an older weft's way) is refused by the build and by `weft connect`: the line is erased and the node connected again. The flags you run: - `--list` works from anywhere: inside a project it lists that project's [access node]s with their stored connections (the picked one marked); outside a project, or in one with no [access node], every stored [connection] across all services. - `--node <id> --grant <grant>` picks a stored [connection] on this install; no secrets travel and no file changes. A live trigger that reads the node is set up again with it, and the answer names it. `--disconnect` forgets the pick. - Each listed [connection] shows its account and its name. When a service has several, pick the one whose name matches this project; if none clearly does, ask the user which one in one plain sentence that gives the names. - `--forget <id>` deletes a stored [connection] and every pick of it goes with it (under `--json` it reports the current project's places that lose their pick: `{"forgot": ..., "cleared": [...]}`; declining reports `{"forgot": null, "cleared": []}`). `--upgrade` manages the rest. - `--json` works with the flag-driven actions only; the interactive walkthrough refuses it. Prompts print to stderr, and any non-interactive run (stdin, stdout or stderr piped) with a prompt pending fails at once, naming the flag to pass. The flags the user runs, in the command you hand them: - `--set name=value` fills an acquisition field; `--set-env NAME=ENV_VAR` reads the value from an environment variable so a secret never rides the command line. A key from another service goes in at the hidden prompt instead, never through `--set`. An explicitly empty `--set` or `--set-env` value is an error, not a silent skip. - `--label <name>` names the new [connection]; without it, it is named after the service (or the app it signs in through). Suggest a name with the project in it (`acme-scraper`) for a key only this project should use; a key meant for every project, like a model provider's, keeps the service's name. - Any flag that shapes a new [connection] (`--set`, `--set-env`, `--paste`, `--mint`, `--label`, `--permissions`, `--shared-app`) skips the stored-connections menu and goes straight to connecting. ## On a cloud install A connection this machine already holds is copied to a cloud install with `weft migrate connections`, never made again (the weft-cloud-install skill, "Moving an app from this machine"). Once a cloud install's own domain is live, its sign-in callback moves to `https://<domain>/access/oauth/callback`. Each provider app only sends people back to the addresses it lists, so for each service in `callbackServices` (from `weft domain list --json`, which the deployer reports) you give the user one line: "In your <service> app's dashboard, add `https://<domain>/access/oauth/callback` to the allowed redirect URLs." A connection already made keeps working, since a refresh needs no callback; only a new sign-in goes through the new one. ## The editor flow, door by door The user expands the [access node] in the graph and clicks its "Connect <Service>..." field. The widget lists existing connections first ("account / name / what it can do", with Change and Disconnect), then "+ Add a connection" with up to two [door]s. A [door] the service does not offer is hidden, never greyed out. - **shared**: a credential this weft holds. Either "Sign in with <Service>" through a registered app (one click, the provider's consent page opens in the browser, the panel waits and updates on its own), or "Use ours (uses your credits)" for key-based services: calls on that [connection] spend the runtime's credits, and it says so. - **own**: the user brings or creates their own. One page: the permissions to ask for (checkboxes), an optional "Create it for me" mint button, a generated step-by-step guide with the callback URL to register, the app fields or a paste-a-credential section, then "Sign in" or "Connect". After connecting, the field shows "Connected as <identity>". Some services (Google class) allow many grants; others (Slack bot, GitHub App) allow one grant per account, and the widget says so when a second connect would displace the first ("Upgrade this connection..."). ## What the banners mean Once a [connection] is picked, the consuming nodes check it live. A red line on a node body like "'<input>' needs permission <scope>; the picked connection does not hold it. Reconnect or upgrade it on the access node." is literal. When the provider verified which permissions the [connection] holds, a missing one is an error. When the provider only claims them, a missing one passes with a warning, because refusing would block every pasted key on every service that reports nothing. A revoked or expired credential surfaces as a loud "needs reconnecting" error naming the fix, never a silent retry. A provider that is busy or down while weft refreshes a sign-in (it answers 408, 429 or a 5xx, or does not answer) is not a dead credential: the node fails with the provider's own answer (`token endpoint answered <status>: ...` or `token endpoint unreachable: ...`), never with "needs reconnecting", and the refresh is tried again the next time the connection is opened.