SDK API reference
Import every supported runtime value and TypeScript type from @getpaseo/client.
createIseeClient(config)
Creates a client without opening the connection.
Required configuration:
| Field | Type | Meaning |
|---|---|---|
url | string | Daemon WebSocket endpoint, including /ws. |
Common optional configuration:
| Field | Type | Default | Meaning |
|---|---|---|---|
clientId | string | Generated | Stable identifier for logs and subscriptions. |
password | string | Unset | Daemon password. |
authHeader | string | Unset | Complete authorization-header value for a proxy. |
connectTimeoutMs | number | Client default | Connection deadline. |
reconnect.enabled | boolean | Client default | Reconnect after an unexpected disconnect. |
reconnect.baseDelayMs | number | Client default | Initial reconnect delay. |
reconnect.maxDelayMs | number | Client default | Maximum reconnect delay. |
logger | IseeLogger | Unset | Debug, info, warning, and error sink. |
Relay E2EE clients can also pass e2ee.enabled and e2ee.daemonPublicKeyB64. appVersion, runtimeGeneration, and runtime-metrics options exist for Isee client surfaces; ordinary integrations can omit them.
Client lifecycle
| Method | Result | Behavior |
|---|---|---|
connect() | Promise<void> | Resolves after the daemon sends its server information. |
close() | Promise<void> | Closes the connection and disposes this client. |
ensureConnected() | void | Throws unless the client is connected. |
getConnectionState() | ConnectionState | Returns idle, connecting, connected, disconnected, or disposed. |
Create a new client after close().
client.agents
| Method | Result | Behavior |
|---|---|---|
list(options?) | IseeAgentListResult | Lists a page of agents. scope, filter, sort, page, and subscribe match the daemon directory query. |
create(options) | IseeAgentHandle | Creates an agent and a fresh workspace for cwd. Requires config. |
ref(agentOrId) | IseeAgentHandle | Creates a local handle without fetching. |
subscribe(handler) | Unsubscribe function | Local listener for this API instance. Requires an owned list({ subscribe: {} }) observation. |
list({ subscribe: {} }) also returns a subscriptionId and an owned subscription. Its subscribe({ snapshot, update, error? }) callbacks receive the snapshot before scoped wire updates; release() ends that observation. Capable daemons assign the ID and keep observations independent. Older daemons use local IDs and their established shared delivery behavior. Plain lists create no observation. The same contract applies to workspace lists. See events.
Creation options include config, cwd, parent, title, prompt, env, outputSchema, images, attachments, git, worktree, autoArchive, and labels.
config accepts:
| Field | Type | Meaning |
|---|---|---|
provider | string | Required provider/model selection. |
modeId | string | Provider operating or permission mode. |
thinkingOptionId | string | Provider reasoning level. |
featureValues | Record<string, unknown> | Values for features discovered through providers.listFeatures. |
options | JSON object | Provider-native settings, strictly validated. See Provider options. |
systemPrompt | string | Additional system or developer instructions. |
mcpServers | MCP server map | Session-scoped MCP servers. |
toolPolicy | MCP tool policy | Exact preapproval rules for MCP tools. |
Agent handle
| Member | Result | Behavior |
|---|---|---|
id | string | Stable daemon agent ID. |
workspaceId | string | null | Current workspace placement. |
cwd | string | null | Current working directory. |
status | Agent status or null | Current lifecycle status. |
capabilities | Capability flags or null | What the provider session supports. |
availableModes | Agent modes or null | Modes the session can switch to. |
pendingPermissions | Permission requests or null | Requests waiting on an answer. |
activeTurn | Active turn or null | The turn in flight, with turnId and startedAt. |
lastUsage | Usage or null | Token counts, cost, and context-window use from the last turn. |
lastError | string | null | Last error the daemon recorded for the agent. |
features | Agent features or null | Provider feature toggles and selects with their current values. |
runtimeInfo | Runtime info or null | Live provider, session ID, model, thinking option, and mode. |
archivedAt | string | null | Archive timestamp; null while the agent is active. |
current() | IseeAgent | null | Current detailed value observed by this handle; never fetches. |
refresh(requestId?) | IseeAgentRefetchResult | null | Fetches the current agent and project placement. |
send(text, options?) | Promise<void> | Resolves when the daemon accepts the prompt. |
respondToPermission(options) | Promise<void> | Answers a pending permission by requestId with an allow or deny response. |
run(text, options?) | IseeAgentRunResult | Sends a prompt and waits for that turn. timeoutMs controls the wait; it defaults to 10 minutes. |
waitForFinish(timeoutMs?) | IseeAgentRunResult | Waits for the active turn, including an initial prompt. Default timeout: 10 minutes. |
commands(options?) | IseeAgentCommandsResult | Asks the live session for its slash commands and skills, including built-in ones. Options: requestId. |
subscribe(handler) | Unsubscribe function | Filters agent-directory updates to this ID and refreshes the handle properties. |
archive() | { archivedAt } | Soft-deletes the agent and closes its runtime. |
detach() | Promise<void> | Removes the parent relationship without stopping the agent. |
workspaceId through archivedAt mirror the last snapshot the handle observed. A handle from ref() reads null for all of them until refresh(), run(), waitForFinish(), a timeline refetch, or subscribe() delivers a snapshot. Optional values in an observed snapshot also read as null. Call current() when you need the whole snapshot or need to distinguish those states.
IseeAgentRunResult contains status, final, error, and lastMessage. final refreshes the handle when present.
IseeAgentCommandsResult contains agentId, commands, and error. Each command has name, description, argumentHint, and an optional kind of "command" or "skill". A provider that cannot answer reports it in error rather than rejecting; providers that expose no command list at all return an empty array.
Timeline handle
agent.timeline.refetch(options?) fetches a page. Options are direction, cursor, limit, projection, and requestId.
agent.timeline.subscribe(handler) establishes network demand for this agent and restores it after reconnect. Its unsubscribe function releases that demand; await unsubscribe.ready for initial daemon acknowledgement before starting work. Delivery is live-only. Reconnect emits a local subscription_restored event; request missed history explicitly with refetch(). A live replacement invalidates the previous epoch. See the callback shapes, paging and failure behavior in timeline events.
client.projects
| Method | Result | Behavior |
|---|---|---|
list(options?) | IseeProjectListResult | Lists every registered project, including projects with no active workspaces. |
subscribe(handler) | Unsubscribe function | Requests future project updates; unsubscribe releases demand. list() supplies initial state. |
See events for explicit event observation and cleanup.
client.workspaces
| Method | Result | Behavior |
|---|---|---|
list(options?) | IseeWorkspaceListResult | Lists, filters, pages, or subscribes to the workspace directory. |
open(cwd) | IseeWorkspaceHandle | Reuses the active workspace for a directory or creates one. |
create(options) | IseeWorkspaceHandle | Always creates a fresh directory-backed or Isee-worktree workspace. |
ref(workspaceOrId) | IseeWorkspaceHandle | Creates a local handle. |
archive(workspaceOrId) | IseeWorkspaceArchiveResult | Archives without first creating a handle. |
subscribe(handler) | Unsubscribe function | Local listener for this API instance. Requires an owned list({ subscribe: {} }) observation. |
A workspace handle exposes id, projectId, directory, name, status, current(), refresh(), setTitle(title), archive(), and subscribe(). Pass null to setTitle to restore the derived workspace name. Use workspace.agents.create(options) to create an agent without repeating the workspace ID or directory.
client.terminals
Terminal operations require a host that supports workspace terminals. An older host receives no terminal request; the SDK throws an update-host error.
| Method | Result | Behavior |
|---|---|---|
create(options) | Promise<IseeTerminalHandle> | Creates a terminal owned by the required workspaceId. |
list(options?) | Promise<IseeTerminalListResult> | Returns { entries, requestId }. Omit filters to list all terminals on this host. |
ref(terminalOrId) | IseeTerminalHandle | Creates a local handle without fetching or attaching a terminal stream. |
Creation options:
| Field | Meaning |
|---|---|
workspaceId | Required active workspace ID. Unknown and archived IDs fail. |
cwd | Optional absolute process working directory. Defaults to the workspace directory; changing it does not change ownership. |
name | Optional terminal name. |
command, args | Optional executable and argument array. Omit them to start the default shell. |
size | Optional initial viewport: { rows, cols }. |
requestId | Optional request correlation ID. |
List options are workspaceId, cwd, and requestId. workspaceId selects ownership, including terminals started outside the workspace directory. When it is present, cwd does not restrict the results. Without an ID, cwd filters by workspace root directory. Each entry contains id, workspaceId, cwd, and name; cwd is the terminal's actual starting directory.
Terminal handles expose:
| Method | Result | Behavior |
|---|---|---|
current() | IseeTerminal | null | Last snapshot from creation, ref(snapshot), or refresh. A handle made from an ID starts empty. |
refresh(options?) | Promise<IseeTerminal | null> | Fetches the terminal snapshot, or null when it no longer exists. Accepts requestId. |
write(data) | number | Sends literal text without interpreting key names. Returns the input's UTF-16 length. |
sendKeys(keys) | number | Expands key tokens and sends the combined input. Returns its UTF-16 length. |
capture(options?) | Promise<IseeTerminalCaptureResult> | Returns { terminalId, lines, totalLines, requestId }. |
kill(requestId?) | Promise<void> | Waits for terminal teardown. Killing an already-removed terminal succeeds. |
sendKeys() recognizes Enter, Tab, Escape, Space, BSpace, C-c, C-d, C-z, C-l, C-a, and C-e. Other strings pass through literally. Input methods send without waiting for command execution or acknowledging that the terminal consumed the input.
Capture accepts optional start, end, stripAnsi, and requestId. Line bounds are zero-based and inclusive across scrollback and the viewport. Negative bounds count from the end; omitted bounds capture all lines. stripAnsi defaults to true. A missing terminal returns empty lines.
Use workspace.terminals.create(options?) and workspace.terminals.list(options?) to supply the workspace ID from a handle. Creation accepts the same options except workspaceId; listing accepts only requestId. Plugins get these methods through useIsee() and the handler's paseo context.
client.providers
| Method | Result | Behavior |
|---|---|---|
waitForReady(options?) | IseeProviderSnapshotResult | Waits until no provider is loading. Default timeout: 60 seconds. Rejects with an update-host error when the daemon cannot correlate workspace snapshots. |
snapshot(options?) | IseeProviderSnapshotResult | Returns the current catalog immediately. |
refresh(options?) | Acknowledgement | Forces catalog refresh for all or selected providers. |
listAvailable() | Availability result | Reports installed provider availability. |
listModels(provider, options?) | Models result | Discovers models for one provider and directory. |
listModes(provider, options?) | Modes result | Discovers permission or operating modes. |
listFeatures(draftConfig) | Features result | Discovers features for the current draft provider configuration. |
diagnostic(provider) | Diagnostic result | Returns human-readable setup diagnostics. |
listUsage(options?) | IseeProviderUsageResult | Returns normalized subscription windows, balances, and provider details. Rejects with an update-host error when unsupported. Options: requestId. |
subscribe(handler) | Unsubscribe function | Requests future catalog updates; unsubscribe releases demand. |
client.config
config.get(requestId?) returns the daemon's mutable configuration.
config.patch(patch, requestId?) validates, persists, and returns an updated configuration. Use this administrative surface for host configuration, not per-agent choices. A patch affects every client and future agent using that daemon.
Errors and cleanup
Connection, validation, rejection, and timeout failures reject their promise. Turn outcomes are returned through IseeAgentRunResult.status because permission and provider errors are expected agent states.
Always close the client in finally. Closing a client removes its local listeners and network connection; it does not stop agents or archive workspaces.