## Summary
Automatically clears transient validation errors
(`value_bigger_than_max`, `value_smaller_than_min`, `value_not_in_list`,
`required_input_missing`) when the user modifies a widget value or
connects an input slot, so resolved errors don't linger in the error
panel. Also clears missing model state when the user changes a combo
widget value.
## Changes
- **`useNodeErrorAutoResolve` composable**: watches widget changes and
slot connections, clears matching errors via `executionErrorStore`
- **`executionErrorStore`**: adds `clearSimpleNodeErrors` and
`clearSimpleWidgetErrorIfValid` with granular per-slot error removal
- **`executionErrorUtil`**: adds `isValueStillOutOfRange` to prevent
premature clearing when a new value still violates the constraint
- **`graphTraversalUtil`**: adds `getExecutionIdFromNodeData` for
subgraph-aware execution ID resolution
- **`GraphCanvas.vue`**: fixes subgraph error key lookup by using
`getExecutionIdByNode` instead of raw `node.id`
- **`NodeWidgets.vue`**: wires up the new composable to the widget layer
- **`missingModelStore`**: adds `removeMissingModelByWidget` to clear
missing model state on widget value change
- **`useGraphNodeManager`**: registers composable per node
- **Tests**: 126 new unit tests covering error clearing, range
validation, and graph traversal edge cases
## Screenshots
https://github.com/user-attachments/assets/515ea811-ff84-482a-a866-a17e5c779c39https://github.com/user-attachments/assets/a2b30f02-4929-4537-952c-a0febe20f02e
┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-9464-feat-auto-resolve-simple-validation-errors-on-widget-change-and-slot-connection-31b6d73d3650816b8afdc34f4b40295a)
by [Unito](https://www.unito.io)
---------
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
## Summary
When a workflow is loaded with missing models, users currently have no
way to identify or resolve them from within the UI. This PR adds a full
missing-model detection and resolution pipeline that surfaces missing
models in the Errors tab, allowing users to install or import them
without leaving the editor.
## Changes
### Missing Model Detection
- Scan all COMBO widgets across root graph and subgraphs for model-like
filenames during workflow load
- Enrich candidates with embedded workflow metadata (url, hash,
directory) when available
- Verify asset-supported candidates against the asset store
asynchronously to confirm installation status
- Propagate missing model state to `executionErrorStore` alongside
existing node/prompt errors
### Errors Tab UI — Model Resolution
- Group missing models by directory (e.g. `checkpoints`, `loras`, `vae`)
with collapsible category cards
- Each model row displays:
- Model name with copy-to-clipboard button
- Expandable list of referencing nodes with locate-on-canvas button
- **Library selector**: Pick an alternative from the user's existing
models to substitute the missing model with one click
- **URL import**: Paste a Civitai or HuggingFace URL to import a model
directly; debounced metadata fetch shows filename and file size before
confirming; type-mismatch warnings (e.g. importing a LoRA into
checkpoints directory) are surfaced with an "Import Anyway" option
- **Upgrade prompt**: In cloud environment, free-tier subscribers are
shown an upgrade modal when attempting URL import
- Separate "Import Not Supported" section for custom-node models that
cannot be auto-resolved
- Status card with live download progress, completion, failure, and
category-mismatch states
### Canvas Integration
- Highlight nodes and widgets that reference missing models with error
indicators
- Propagate missing-model badges through subgraph containers so issues
are visible at every graph level
### Code Cleanup
- Simplify `surfacePendingWarnings` in workflowService, remove stale
widget-detected model merging logic
- Add `flattenWorkflowNodes` utility to workflowSchema for traversing
nested subgraph structures
- Extract `MissingModelUrlInput`, `MissingModelLibrarySelect`,
`MissingModelStatusCard` as focused single-responsibility components
## Testing
- Unit tests for scan pipeline (`missingModelScan.test.ts`): enrichment,
skip-installed, subgraph flattening
- Unit tests for store (`missingModelStore.test.ts`): state management,
removal helpers
- Unit tests for interactions (`useMissingModelInteractions.test.ts`):
combo select, URL input, import flow, library confirm
- Component tests for `MissingModelCard` and error grouping
(`useErrorGroups.test.ts`)
- Updated `workflowService.test.ts` and `workflowSchema.test.ts` for new
logic
## Review Focus
- Missing model scan + enrichment pipeline in `missingModelScan.ts`
- Interaction composable `useMissingModelInteractions.ts` — URL metadata
fetch, library install, upload fallback
- Store integration and canvas-level error propagation
## Screenshots
https://github.com/user-attachments/assets/339a6d5b-93a3-43cd-98dd-0fb00681b66f
┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-9743-feat-Surface-missing-models-in-Errors-tab-Cloud-3206d73d365081678326d3a16c2165d8)
by [Unito](https://www.unito.io)
