Module Reference

Every module an application flow can be built from.

Inputs

Module	Type	Tier	What it does
Dataset Source	DatasetSource	reactive	Read from a saved dataset in your workspace.
Connector Import	ConnectorImport	durable	Run a connector import through a bound credential and materialise the rows as a dataset version.
Origin Grid	OriginGrid	reactive	Emit origin timestamps for walk-forward or backtest sweeps.
Config Input	ConfigInput	reactive	Provide a config JSON bag with defaults for downstream modules.
Scenario Input	ScenarioInput	reactive	Lets viewers of the published app adjust simulation parameters within your bounds.
Table Input	TableInput	reactive	Lets viewers of the published app enter or paste data rows the flow runs on.

Outputs

Module	Type	Tier	What it does
Dataset Output	DatasetOutput	durable	Write the result back to a dataset.
Connector Write	ConnectorWrite	durable	Write the incoming rows to a table or object path through a bound connector.
API Call	APICall	durable	Send data to an external API endpoint.
Send Notification	SendNotification	durable	Post an alert to Slack or a webhook when an upstream branch fires.
API Response	APIResponseOut	reactive	Sends the final response payload back to the API caller.
Emit event	EmitEvent	durable	Publish a named application event with a JSON payload for other applications to subscribe to.

Data Processing

Module	Type	Tier	What it does
Data Operations	DataOperations	reactive	Transform data with filters, joins, aggregations, and 27 other operations.
Conditional	Conditional	reactive	Route data to different branches based on conditions.
Gate	Gate	reactive	Assert row counts, null rates, keys, ranges, freshness or a pinned schema before data flows on.
Buffer	Buffer	durable	Accumulate arriving rows in a staging dataset and emit them as one batch when flushed or a bound is hit.

Intelligence

Module	Type	Tier	What it does
Call LLM	CallLLM	durable	Generate text, JSON, or tabular data using a large language model.
Intervention	InterventionSim	reactive	Simulate the effect of interventions on a Digital Twin.
Counterfactual	CounterfactualSim	reactive	Find what inputs would produce a desired outcome.
Forecast	ForecastSim	reactive	Generate forward-looking predictions from a Digital Twin.
Forecast Backtest	ForecastBacktest	durable	Score past forecasts against what actually happened — accuracy over time.
Score Forecast	ScoreForecast	reactive	Score a forecast dataframe against actuals — horizons, MAPE, WMAPE, and more.
Backtest Scores	BacktestScores	durable	Pool matched forecast rows across origins into per-variable and per-lead-time accuracy.
Forecast Groups	AggregateForecast	reactive	Roll a finished panel forecast up into named environment groups defined by a dimension column or SQL rules.
Static Accuracy	StaticAccuracy	reactive	Score a static model on new labeled rows for selected target columns and metrics.
Optimisation	OptimisationSim	durable	Find optimal variable settings for a target outcome.
Root Cause Analysis	RCASim	durable	Identify root causes of anomalies or outcomes.
Anomaly Detection	AnomalySim	durable	Detect anomalies and outliers using a Digital Twin.
Train Model	TrainModel	durable	Train a new Digital Twin model from data.
Update Model	UpdateModel	durable	Retrain or update an existing Digital Twin with new data.
For Each	ForEach	durable	Run an inline body subgraph once per row of an items dataframe.
While	While	durable	Repeat a body subgraph until a condition holds or the iteration cap is reached, carrying state in shift registers.
Sub-app	SubApp	durable	Use a published application as a module: its exposed terminals become this node's ports, pinned to one version.
Code	Code	reactive	Run sandboxed Python to transform data or emit JSON.
Pre-score	PreScore	durable	Score a grid of scenarios in one durable twin run and fill the scenario store reactive simulations answer from.

Library

Module	Type	Tier	What it does
Box	Box	durable	Drop a published box — a saved fragment of flow — in as one node.

Events

Module	Type	Tier	What it does
API Request	APIRequestIn	reactive	The HTTP request event: body, query, headers and the sync or async response mode.
On schedule	OnSchedule	durable	Start a flow on a cron schedule, optionally spread over partition keys.
On data arrival	OnDataArrival	durable	Start a flow when a dataset is uploaded, synced, changed or its schema drifts.
On twin change	OnTwinChange	durable	Start a flow when a digital twin is trained or updated.
On interval	OnInterval	reactive	Tick the reactive tier every N seconds so a live dashboard re-reads its connector without polling.
On webhook	OnWebhook	durable	Start a flow when an external service POSTs to this application's webhook URL.
On panel event	OnPanelEvent	reactive	Start a flow when a widget emits click, change, submit, rowSelect, pageOpen or pageClose.
On application event	OnAppEvent	durable	Start a flow when another application in this workspace emits a declared event.

Primitives

Module	Type	Tier	What it does
Select	Select	reactive	Keep or drop the named columns.
Filter	Filter	reactive	Keep the rows a condition matches; values may read {{params.*}}.
Join	Join	reactive	Join left and right on key columns.
Union	Union	reactive	Stack the rows of a and b, by column name or position.
Aggregate	Aggregate	reactive	Group by columns and compute measures.
Compute	Compute	reactive	Add columns from expressions; values may read {{params.*}}.
Window	Window	reactive	A window function over partitions in order: rank, lag, rolling sums.
Resample	Resample	reactive	Bucket a time column to a cadence and aggregate each bucket.
Pivot	Pivot	reactive	Turn the values of one column into columns.
Unpivot	Unpivot	reactive	Turn columns into rows of variable and value.
Sort	Sort	reactive	Order rows by columns.
Limit	Limit	reactive	Keep the first n rows after an offset.
Distinct	Distinct	reactive	Drop duplicate rows, over all or the named columns.
Rename	Rename	reactive	Rename columns.
Cast	Cast	reactive	Change column types.
Fill	Fill	reactive	Fill nulls with a value, a neighbour or the mean.
Sample	Sample	reactive	Keep n rows, chosen arbitrarily but the same ones each run.
Constant	Constant	reactive	Emit one typed value.
Expression	Expression	reactive	Compute one value from a, b and c with the scalar grammar.
Compare	Compare	reactive	Compare a with b and emit a boolean.
Pick	Pick	reactive	Read one value out of a JSON by path.
Merge	Merge	reactive	Merge two JSON objects, b over a.
To table	ToTable	reactive	Turn a JSON of records or columns into a dataframe.
From table	FromTable	reactive	Turn a dataframe into a JSON of records or columns.
Switch	Switch	reactive	Route by a value: one out-port per case, then otherwise.
Await	Await	reactive	Continue when all or any of the inputs have arrived.
Delay	Delay	durable	Hold a value for a number of seconds on a Temporal timer.
Poll	Poll	durable	Check a GET endpoint until its response matches a condition or the time limit is reached.
Resolve twin	ResolveTwin	reactive	Look up a digital twin's latest or pinned version as JSON.
Connector read	ConnectorRead	reactive	Read a table or query through a bound connector without writing a dataset, cached for ttlS.
Series view	SeriesView	reactive	A forecast or scenario series seen through a view: time bucket, cumulative or per period, cohort and variable from a config's fields, plus a fixed roll-up and history.

Port kinds

An out-port may be wired to an in-port whose kind is listed here.

Kind	Connects to
dataframe	dataframe, signal
scalar	scalar, json, text, signal
json	json, scalar, signal
text	text, scalar, signal
document	document, binary, signal
image	image, binary, signal
binary	binary, document, image, signal
signal	signal
event	event, json