H-6519: Add discrete token attribute types by kube · Pull Request #8764 · hashintel/hash

kube · 2026-05-26T23:31:04Z

🌟 What is the purpose of this PR?

Adds support for discrete token attribute types in Petrinaut, so coloured token dimensions can be represented as integer or boolean values in addition to continuous real values.

This updates the model schema, simulator runtime, code authoring surface, and editor UI so typed token values can be created, simulated, displayed, and passed into user-authored Petrinaut code consistently.

Note: UUID was originally in scope but is split out to FE-1121: 128-bit values cannot live in a single Float64 frame slot, so UUID needs a variable-width token layout that deserves its own PR.

🔗 Related links

H-6519: Add uuid, boolean and int discrete types (internal)
FE-1121: Add UUID discrete type to Petrinaut (internal, follow-up)

🔍 What does this change?

Extends colour element types to real, integer, and boolean.
Adds typed token records using number | boolean values throughout Petrinaut core APIs.
Encodes booleans as 0/1 and rounds integers when packing token values into the numeric frame buffers used by the simulator, and decodes them back to typed values for user code and the UI.
Updates simulation build, transition kernels, lambda inputs, dynamics, Monte Carlo transition effects, frame readers, metrics, and visualizers to use typed token objects.
Restricts dynamics to real-valued attributes; discrete attributes remain unchanged by continuous dynamics and can only be written by transition kernels.
Allows real and integer transition kernel outputs to use runtime distributions, while rejecting distributions for boolean outputs.
Updates scenario schemas and scenario compilation so coloured place rows can contain typed token values.
Updates generated default code, LSP virtual files, and AI guidance to describe the new token typing rules.
Adds type selection controls for Petrinaut dimensions in the properties panel.
Updates initial-state and scenario spreadsheet editors to support real, integer, and boolean cells.
Keeps boolean spreadsheet cells keyboard-navigable and fixes the dimension row layout so the name input remains visible next to the type selector.
Adds regression coverage for typed scenario row compilation, typed initial marking packing/decoding, and typed transition input/output encoding.
Adds a changeset for @hashintel/petrinaut and @hashintel/petrinaut-core.

Pre-Merge Checklist 🚀

🚢 Has this modified a publishable library?

This PR:

modifies an npm-publishable library and I have added a changeset file(s)

📜 Does this require a change to the docs?

The changes in this PR:

are internal and do not require a docs change

🕸️ Does this require a change to the Turbo Graph?

The changes in this PR:

do not affect the execution graph

🛡 What tests cover this?

yarn workspace @hashintel/petrinaut-core test:unit
yarn workspace @hashintel/petrinaut test:unit
yarn exec turbo run lint:tsc --filter '@hashintel/petrinaut-core' --filter '@hashintel/petrinaut'
yarn exec turbo run lint:eslint --filter '@hashintel/petrinaut-core' --filter '@hashintel/petrinaut'
yarn exec oxfmt --check $(git diff --name-only --diff-filter=ACM) libs/@hashintel/petrinaut-core/src/simulation/engine/token-values.ts
git diff --check

❓ How to test this?

Open Petrinaut and select a type in the properties panel.
Add or edit dimensions and switch their types between Real, Integer, and Boolean.
Confirm the dimension name input remains visible beside the type selector.
Add typed initial tokens or scenario token rows for a coloured place.
Run a simulation and confirm typed token values are preserved in initial state, transition output, and visualizer/metric inputs.

vercel · 2026-05-26T23:31:10Z

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Project	Deployment	Actions	Updated (UTC)
hash	Ready	Preview, Comment	Jul 2, 2026 10:22pm
petrinaut	Ready	Preview, Comment	Jul 2, 2026 10:22pm

1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
hashdotdesign-tokens	Ignored	Preview	Jul 2, 2026 10:22pm

cursor · 2026-05-26T23:31:10Z

PR Summary

Medium Risk
Touches core simulation packing, transition I/O, and scenario compilation—user models with mixed attribute types could surface new runtime or rounding edge cases, though coverage was added for encode/decode and LSP rules.

Overview
Coloured token dimensions can now be real, integer, or boolean end-to-end, not only numeric hints on a Float64 buffer.

A shared token-values layer coerces, encodes (booleans as 0/1, integers rounded), and decodes tokens for the simulator, scenarios, transitions, frame readers, and Monte Carlo paths. Dynamics only apply derivatives to real attributes; discrete fields are unchanged in ODE integration and are updated via transition kernels, with LSP typing (?: never on discrete derivative keys) and checker tests for invalid discrete derivatives.

Schemas, AI cheatsheet text, default codegen, and LSP virtual files now document typed lambdas/kernels and scenario rows (number | boolean). The Spreadsheet and type properties UI add per-column types (including boolean cells with keyboard toggles), and initial-state / scenario editors persist TokenRecord values through simulation and visualizers.

^{Reviewed by Cursor Bugbot for commit 02c896f. Bugbot is set up for automated code reviews on this repo. Configure here.}

Copilot

Pull request overview

This PR extends Petrinaut to support discrete token attribute types (integer/boolean/uuid in addition to real) across schema, simulation encoding/decoding, scenario/initial marking handling, and UI surfaces; it also introduces subnet/component-instance scaffolding (ports, instances, and active-net scoping) to support hierarchical net composition.

Changes:

Add typed token plumbing end-to-end (schema types, codecs, frame payloads/readers, scenario compilation, and UI editors/visualizers).
Introduce component instances + subnets and update editor state/UI to support selecting and editing an “active net” (root vs subnet).
Update authoring surfaces (transition editors, properties panels, left sidebar, toolbar) to reflect the new structures and token typing.

Reviewed changes

Copilot reviewed 121 out of 121 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
libs/@hashintel/petrinaut/src/ui/views/shared/place-state-visualization.tsx	Use typed `TokenRecord` tokens from frame reader/marking.
libs/@hashintel/petrinaut/src/ui/views/SDCPN/reactflow-types.ts	Add component-instance node types; rename arcs→edges.
libs/@hashintel/petrinaut/src/ui/views/SDCPN/node-dimensions.ts	Add component-instance node dimensions.
libs/@hashintel/petrinaut/src/ui/views/SDCPN/hooks/use-sdcpn-to-react-flow.ts	Build component-instance nodes and port-handle edges.
libs/@hashintel/petrinaut/src/ui/views/SDCPN/hooks/use-apply-node-changes.ts	Include component instances in selection/position commits.
libs/@hashintel/petrinaut/src/ui/views/SDCPN/components/viewport-settings-dialog.tsx	Add experimental “Net Components” toggle.
libs/@hashintel/petrinaut/src/ui/views/SDCPN/components/mini-map.tsx	Render component-instance nodes in minimap.
libs/@hashintel/petrinaut/src/ui/views/SDCPN/components/cursor-tooltip.tsx	Tooltip for add-place/transition/component modes.
libs/@hashintel/petrinaut/src/ui/views/SDCPN/components/component-instance-node.tsx	ReactFlow node renderer for component instances + ports.
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/SimulateView/scenarios/view-scenario-drawer.tsx	Scenario form defaults accept typed token rows.
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/SimulateView/scenarios/scenario-mapping.ts	Update scenario mapping comment for typed rows.
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/SimulateView/scenarios/scenario-form.tsx	Spreadsheet initial-state data uses typed cell values.
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/SimulateView/experiments/experiments-story-fixtures.tsx	Update fixtures for new editor actions.
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/PropertiesPanel/type-properties/subviews/main.tsx	Add dimension type selector (real/int/bool/uuid).
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/PropertiesPanel/transition-properties/subviews/transition-results/subview.tsx	Kernel template generation supports component-port endpoints + typed tokens.
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/PropertiesPanel/transition-properties/subviews/transition-firing-time/subview.tsx	Guard Monaco `onChange` undefined values.
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/PropertiesPanel/transition-properties/subviews/main.tsx	Arc endpoint handling supports component ports in UI.
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/PropertiesPanel/transition-properties/main.tsx	Thread active net into transition properties provider.
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/PropertiesPanel/transition-properties/context.tsx	Provider now supplies full SDCPN + active-net info.
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/PropertiesPanel/properties-panel.stories.tsx	Story updates for endpoint-based arc APIs.
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/PropertiesPanel/place-properties/subviews/place-initial-state/subview.tsx	Pass full `Place` into initial-state editor.
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/PropertiesPanel/place-properties/subviews/place-initial-state/initial-state-editor.tsx	Spreadsheet editor supports typed values + defaults.
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/PropertiesPanel/place-properties/subviews/main.tsx	Add “Component port” place property; use ActiveNetContext.
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/PropertiesPanel/panel.tsx	Add component-instance properties panel; use ActiveNetContext.
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/PropertiesPanel/multi-selection-panel.tsx	Add label for component instance multi-select.
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/PropertiesPanel/component-instance-properties/subviews/main.tsx	New component-instance properties subview.
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/PropertiesPanel/component-instance-properties/main.tsx	New container wiring for component-instance panel.
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/PropertiesPanel/component-instance-properties/context.tsx	New context for component-instance properties.
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/PropertiesPanel/arc-properties/main.tsx	Arc properties support endpoint keys + component ports.
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/LeftSideBar/subviews/types-list.tsx	Types list uses active net.
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/LeftSideBar/subviews/parameters-list.tsx	Parameters list uses active net.
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/LeftSideBar/subviews/nodes-list.tsx	Nodes list uses active net; type tweaks.
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/LeftSideBar/subviews/nets-list.tsx	New nets (root/subnet) selector with rename/delete.
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/LeftSideBar/subviews/entities-tree.tsx	Entities tree uses ActiveNetContext for items.
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/LeftSideBar/subviews/differential-equations-list.tsx	Differential equations list uses active net; null colorId default.
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/LeftSideBar/panel.tsx	Gate nets subview behind extension + user setting.
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/BottomPanel/subviews/simulation-timeline/legend.test.tsx	Test comment wording update.
libs/@hashintel/petrinaut/src/ui/views/Editor/panels/ai-assistant-panel/tool-summaries.ts	AI tool summaries support arc endpoints + component ports.
libs/@hashintel/petrinaut/src/ui/views/Editor/editor-view.tsx	Initialize SDCPN with subnets/componentInstances; reorder examples.
libs/@hashintel/petrinaut/src/ui/views/Editor/components/BottomBar/use-keyboard-shortcuts.ts	“Select all” includes component instances; use active net for copy.
libs/@hashintel/petrinaut/src/ui/views/Editor/components/BottomBar/toolbar-modes.tsx	Add “Add component” dropdown (root-only, gated).
libs/@hashintel/petrinaut/src/ui/views/Editor/components/BottomBar/simulation-controls.tsx	Disable simulation controls when inside subnet view.
libs/@hashintel/petrinaut/src/ui/views/Editor/components/BottomBar/bottom-bar.tsx	Reset non-cursor edition modes when leaving edit; pass inSubnet.
libs/@hashintel/petrinaut/src/ui/petrinaut.tsx	Doc wording update.
libs/@hashintel/petrinaut/src/ui/petrinaut.stories.tsx	Add subnet-related story variants.
libs/@hashintel/petrinaut/src/ui/lib/compile-visualizer.ts	Visualizer token prop accepts typed values.
libs/@hashintel/petrinaut/src/ui/constants/ui-subviews.ts	Add nets subview; tighten typing with `satisfies`.
libs/@hashintel/petrinaut/src/ui/components/spreadsheet.stories.tsx	Spreadsheet story uses typed cell values.
libs/@hashintel/petrinaut/src/ui/components/arc-item.tsx	Arc list item supports label/color + endpoint IDs.
libs/@hashintel/petrinaut/src/react/state/user-settings-provider.tsx	Add action to set enableNetComponents.
libs/@hashintel/petrinaut/src/react/state/user-settings-context.ts	Add enableNetComponents setting + defaults.
libs/@hashintel/petrinaut/src/react/state/use-selection-cleanup.ts	Selection cleanup supports endpoint arc IDs + component instances.
libs/@hashintel/petrinaut/src/react/state/sdcpn-context.ts	Add componentInstance selection type; default SDCPN includes subnets/instances.
libs/@hashintel/petrinaut/src/react/state/editor-provider.tsx	Add add-component edition mode + componentSubnetId state; use active net for connections.
libs/@hashintel/petrinaut/src/react/state/editor-context.ts	Add add-component edition mode + action; store componentSubnetId.
libs/@hashintel/petrinaut/src/react/state/active-net-provider.tsx	New provider deriving active net from SDCPN + active subnet selection.
libs/@hashintel/petrinaut/src/react/state/active-net-context.ts	New context for active net definition + active subnet ID.
libs/@hashintel/petrinaut/src/react/simulation/provider.tsx	Minor comment tweak.
libs/@hashintel/petrinaut/src/react/sdcpn-provider.tsx	`getItemType` recognizes items across root + subnets + instances.
libs/@hashintel/petrinaut/src/react/petrinaut-provider.tsx	Wire in ActiveNetProvider.
libs/@hashintel/petrinaut/src/react/hooks/use-petrinaut-mutations.ts	Mutations inject targetSubnetId by default; subnets/instances mutations added.
libs/@hashintel/petrinaut/src/react/hooks/use-petrinaut-mutations.test.tsx	Update test context for new editor action.
libs/@hashintel/petrinaut/src/react/hooks/use-petrinaut-commands.ts	Commands inject targetSubnetId.
libs/@hashintel/petrinaut/src/react/hooks/use-petrinaut-commands.test.tsx	Update test context for new editor action.
libs/@hashintel/petrinaut/docs/petri-net-extensions.md	Doc update for typed kernel template insertion.
libs/@hashintel/petrinaut/docs/drawing-a-net.md	Document component ports + port arcs.
libs/@hashintel/petrinaut-core/src/types/selection.ts	Add componentInstance to selection union.
libs/@hashintel/petrinaut-core/src/types/sdcpn.ts	Add token typing, arc endpoints, subnets, component instances, ports.
libs/@hashintel/petrinaut-core/src/simulation/worker/simulation.worker.ts	Include discrete-values snapshot in frame payload.
libs/@hashintel/petrinaut-core/src/simulation/worker/frame-payload.ts	Add `discreteValues` to payload.
libs/@hashintel/petrinaut-core/src/simulation/runtime/simulation.ts	Flatten components for frame-store layout; merge parameter defaults.
libs/@hashintel/petrinaut-core/src/simulation/runtime/frame-store.ts	Thread discrete-values into frame readers.
libs/@hashintel/petrinaut-core/src/simulation/monte-carlo/transition-effect.ts	Decode typed inputs + encode typed outputs via codec.
libs/@hashintel/petrinaut-core/src/simulation/frames/frame-reader.ts	Decode typed token attributes using discrete-values snapshot.
libs/@hashintel/petrinaut-core/src/simulation/engine/types.ts	TokenRecord/typed kernel output + tokenValueCodec on simulation instance.
libs/@hashintel/petrinaut-core/src/simulation/engine/token-values.ts	New encode/decode/coercion helpers + TokenValueCodec.
libs/@hashintel/petrinaut-core/src/simulation/engine/execute-transitions.test.ts	Update tests for endpoint place IDs + codec presence.
libs/@hashintel/petrinaut-core/src/simulation/engine/compute-possible-transition.ts	Decode/encode typed tokens for transitions.
libs/@hashintel/petrinaut-core/src/simulation/engine/compute-possible-transition.test.ts	Add typed token encode/decode coverage.
libs/@hashintel/petrinaut-core/src/simulation/engine/check-transition-enablement.ts	Reject component-port endpoints in unflattened enablement checks.
libs/@hashintel/petrinaut-core/src/simulation/authoring/scenario/compile-scenario.ts	Coerce typed row values into TokenRecords.
libs/@hashintel/petrinaut-core/src/simulation/authoring/scenario/compile-scenario.test.ts	Add typed scenario row coercion coverage.
libs/@hashintel/petrinaut-core/src/simulation/authoring/metric/compile-metric.ts	Metrics receive typed TokenRecords.
libs/@hashintel/petrinaut-core/src/simulation/api.ts	Initial marking + frame-reader APIs use TokenRecord.
libs/@hashintel/petrinaut-core/src/schemas/scenario-schema.ts	Allow typed token row cell values in schema.
libs/@hashintel/petrinaut-core/src/schemas/metric-schema.ts	Update schema description for typed tokens.
libs/@hashintel/petrinaut-core/src/lsp/lib/checker.test.ts	LSP checks cover component-port typed inputs/outputs.
libs/@hashintel/petrinaut-core/src/lib/get-connections.ts	Connection graph supports endpoint arc IDs + component instances.
libs/@hashintel/petrinaut-core/src/layout/dimensions.ts	Add component instance dimensions for layout.
libs/@hashintel/petrinaut-core/src/layout/calculate-graph-layout.ts	Layout includes component instances + endpoint node IDs.
libs/@hashintel/petrinaut-core/src/index.ts	Export arc-endpoint helpers; export subnet/component schemas.
libs/@hashintel/petrinaut-core/src/handle/json-doc-handle/create-json-doc-handle.test.ts	Capabilities include subnets.
libs/@hashintel/petrinaut-core/src/file-format/types.ts	File format supports subnets + component instances.
libs/@hashintel/petrinaut-core/src/file-format/sdcpn-to-tikz.ts	TikZ export uses endpoint place IDs when possible.
libs/@hashintel/petrinaut-core/src/file-format/remove-visual-info.ts	Strip visual info from subnets/instances too.
libs/@hashintel/petrinaut-core/src/file-format/parse-sdcpn-file.ts	Parse/fill visual info for subnets + instances.
libs/@hashintel/petrinaut-core/src/file-format/parse-sdcpn-file.test.ts	Import tests for subnets/instances + missing positions.
libs/@hashintel/petrinaut-core/src/extensions.test.ts	Extension logic covers component-port arcs + sanitization.
libs/@hashintel/petrinaut-core/src/default-codes.ts	Default code templates respect typed token attributes.
libs/@hashintel/petrinaut-core/src/commands.ts	Commands target active subnet; layout/paste support subnet targets.
libs/@hashintel/petrinaut-core/src/commands.test.ts	Tests for subnet paste/layout targeting.
libs/@hashintel/petrinaut-core/src/command-schemas.ts	Command schema accepts targetSubnetId.
libs/@hashintel/petrinaut-core/src/clipboard/serialize.ts	Clipboard serialization filters arcs via endpoint place IDs.
libs/@hashintel/petrinaut-core/src/clipboard/paste.ts	Clipboard paste maps arcs via endpoint place IDs.
libs/@hashintel/petrinaut-core/src/arc-endpoints.ts	New helpers for typed arc endpoints + keys.
libs/@hashintel/petrinaut-core/src/ai.ts	AI guidance updated for typed tokens + typed scenarios.
apps/petrinaut-website/src/main/app/local-storage-demo/local-storage-demo-app.tsx	Demo handle capabilities + “empty SDCPN” check includes subnets/scenarios.
.changeset/quiet-subnets-compose.md	Changeset for subnet/component support.
.changeset/h-6519-discrete-token-attribute-types.md	Changeset for discrete token attribute types.

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+        ?.map((pl) => ({
+          value: pl.id,
+          text: pl.name,
+        }))
+        .concat(


+        onKeyDown={(event) => {
+          if (event.key === "Enter" || event.key === " ") {
+            handleSelect(null);
+          }
+        }}


Copilot

Pull request overview

Copilot reviewed 34 out of 34 changed files in this pull request and generated 4 comments.

+  snapshot(): EncodedDiscreteValues | undefined {
+    return this.#uuids.length > 0 ? [...this.#uuids] : undefined;
+  }


+      const userFn = compileUserCode<[TokenRecord[], ParameterValues]>(
+        code,
+        "Dynamics",
+      ) as UserDifferentialEquationFn;


+      const normalizedKey = event.key.toLowerCase();
+      if (normalizedKey === "t" || normalizedKey === "1") {
+        event.preventDefault();
+        updateCell(row, col, true);
+        setSelectedRow(null);
+        return;
+      }
+      if (normalizedKey === "f" || normalizedKey === "0") {
+        event.preventDefault();
+        updateCell(row, col, false);
+        setSelectedRow(null);
+        return;
+      }
+    }


      <Section
        title="Dimensions"
-        tooltip="A type is an ordered tuple of real-valued dimensions. The index of each dimension determines its position in the token vector."
+        tooltip="A type is an ordered tuple of token attributes. Real attributes can be updated by dynamics; integer, boolean, and UUID attributes are discrete."


UUID is more complex to integrate (128-bit values cannot live in one Float64 slot) and is split out to FE-1121. This also removes the UUID string-interning TokenValueCodec and the discreteValues frame payload plumbing, since integer and boolean encode directly as numbers. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

The generated differential equation template returned a 0 derivative for integer/boolean attributes, contradicting the LSP Derivative type which marks discrete elements `?: never` (excess property checks do not fire through `tokens.map(...)`, so `never` is what enforces real-only derivatives). Freshly generated code showed a type error as a result. The template now returns derivatives for real elements only, and checker tests pin both the valid and invalid cases. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

cursor

Cursor Bugbot has reviewed your changes and found 1 potential issue.

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.}

^{Reviewed by Cursor Bugbot for commit 19fa9d1. Configure here.}

cursor · 2026-07-01T23:18:19Z

-      }) as UserDifferentialEquationFn;
+      if (!type.elements.some((element) => element.type === "real")) {
+        continue;
+      }


Dynamics silently skipped without real

Medium Severity

When a place has dynamics enabled and linked differential-equation code but its colour type has no real elements, buildSimulation hits continue and never registers a compiled dynamics function. The run proceeds with no error while continuous dynamics for that place never execute.

^{Reviewed by Cursor Bugbot for commit 19fa9d1. Configure here.}

Copilot

Pull request overview

Copilot reviewed 32 out of 32 changed files in this pull request and generated 6 comments.

  if (totalFrames > 0 && currentFrameReader) {
-    const placeTokenValues = currentFrameReader.getPlaceTokenValues(place.id);
-    if (!placeTokenValues) {
-      return <div className={messageStyle}>Place not found in frame</div>;
-    }
-
-    const tokenValues = Array.from(placeTokenValues.values);
-
-    for (
-      let tokenIndex = 0;
-      tokenIndex < placeTokenValues.count;
-      tokenIndex++
-    ) {
-      const token: Record<string, number> = {};
-      for (let colIndex = 0; colIndex < dimensions; colIndex++) {
-        const dimensionName = placeType.elements[colIndex]!.name;
-        token[dimensionName] =
-          tokenValues[tokenIndex * dimensions + colIndex] ?? 0;
-      }
-      tokens.push(token);
-    }
-
+    tokens.push(...currentFrameReader.getPlaceTokens(place, placeType));
    parameters = mergeParameterValues(parameterValues, defaultParameterValues);
  } else {


                              type="number"
+                              step={
+                                columns[colIndex]?.type === "integer"
+                                  ? 1
+                                  : undefined
+                              }


+                              role="checkbox"
+                              aria-checked={Boolean(value)}
+                              tabIndex={0}


+                              <input
+                                type="checkbox"
+                                checked={Boolean(value)}
+                                readOnly
+                                tabIndex={-1}
+                                className={booleanCellStyle}
+                              />


        const values: number[] = [];
-        for (const elementName of outputPlace.elementNames) {
-          const rawValue = token[elementName]!;
+        for (const element of outputPlace.elements ?? []) {


+          for (const element of outputPlace.elements ?? []) {
+            let raw = token[element.name];
            if (isDistribution(raw)) {
+              if (element.type !== "real" && element.type !== "integer") {
+                throw new Error(


Integer token attributes are stored as Float64 and rounded on read/write; the schema description now states the exact-integer range contract so authors know large values lose precision. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

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Comment thread libs/@hashintel/petrinaut-core/src/actions.ts

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H-6519 add discrete token attribute types

d010350

Add changeset for discrete token attribute types

55d16cd

Refine type dimensions properties UI

7a1a395

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H-6519: Add discrete token attribute types#8764

H-6519: Add discrete token attribute types#8764
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cf/h-6519-add-uuid-boolean-and-int-discrete-types

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kube commented May 26, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

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🌟 What is the purpose of this PR?

🔗 Related links

🔍 What does this change?

Pre-Merge Checklist 🚀

🚢 Has this modified a publishable library?

📜 Does this require a change to the docs?

🕸️ Does this require a change to the Turbo Graph?

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❓ How to test this?

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kube commented May 26, 2026 •

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