@@ -27,6 +27,8 @@ Harvest v3 returns applications, attachments, education, and employment through
 
 List operations return one page, its `count`, `nextCursor`, and `hasMore`. Set a page size from 1 to 500 and pass `nextCursor` into the next call until `hasMore` is false. A cursor carries the initial query, so other filters and page size are ignored while it is set. Date filters accept a JSON object such as `{"gte":"2026-01-01T00:00:00Z"}`; use either `created_at` or `updated_at`, not both.
 
+For list operations, Job IDs uses comma-separated IDs. For prospect application creation, Job IDs uses a JSON array of integers. Created At takes a JSON date range on list operations, an ISO 8601 timestamp when creating an application, and a `YYYY-MM-DD` date when updating an application.
+
 Partial reads leave unrequested fields as `null`, including collections. An explicit empty array means the collection is empty. Date-only filters, such as offer `sent_on` and `starts_on`, use `YYYY-MM-DD` bounds.
 
 When updating candidate contact arrays, tags, or linked users, read the current candidate first and submit the complete desired array: supplied arrays replace their existing values. Unset inputs are omitted; custom-field entries may use `null` to clear a value. Creating an email note records an email in Greenhouse and does not send one. Application movement may trigger Greenhouse stage automation, and rejection can optionally send a rejection email. Move, hire, reject, and unreject operations return no provider fields on success.
 
@@ -23,6 +23,7 @@ interface ToolSubBlockRendererProps {
   /** The tool's block type (e.g. `gmail`), so its params' selectors resolve dependencies. */
   toolType: string
   toolParams: Record<string, string> | undefined
+  operation?: string
   onParamChange: (toolIndex: number, paramId: string, value: string) => void
   disabled: boolean
   canonicalToggle?: {
@@ -44,6 +45,7 @@ export function ToolSubBlockRenderer({
   effectiveParamId,
   toolType,
   toolParams,
+  operation,
   onParamChange,
   disabled,
   canonicalToggle,
@@ -128,7 +130,7 @@ export function ToolSubBlockRenderer({
         isPreview={false}
         disabled={disabled}
         canonicalToggle={canonicalToggle}
-        dependencyContext={toolParams}
+        dependencyContext={{ ...toolParams, operation }}
       />
     </DependencyBlockTypeProvider>
   )
 
@@ -1,5 +1,8 @@
 import { getTransitiveSubBlockDependents } from '@/lib/workflows/subblocks/dependencies'
+import type { StoredTool } from '@/lib/workflows/tool-input/types'
 import { getBlock } from '@/blocks/registry'
+import type { ToolMetadata } from '@/tools/metadata'
+import { isUserFacingToolParam } from '@/tools/params'
 
 /**
  * Clear every TRANSITIVE `dependsOn` descendant of `changedParamId` in a nested tool's params,
@@ -23,3 +26,43 @@ export function clearDependentToolParams(
   }
   return next ?? params
 }
+
+/** Keeps user-configured inputs that the newly selected operation accepts. */
+export function getParamsForToolOperation(
+  tool: Pick<StoredTool, 'type' | 'params'>,
+  nextTool: ToolMetadata
+): Record<string, string> {
+  const newParamIds = new Set(
+    Object.entries(nextTool.params ?? {})
+      .filter(([, param]) => isUserFacingToolParam(param))
+      .map(([paramId]) => paramId)
+  )
+  const subBlocks = getBlock(tool.type)?.subBlocks ?? []
+  if (nextTool.oauth) {
+    const credentialControls = subBlocks.filter(
+      (subBlock) =>
+        subBlock.type === 'oauth-input' && subBlock.serviceId === nextTool.oauth?.provider
+    )
+    const credentialCanonicalIds = new Set(
+      credentialControls.flatMap((subBlock) =>
+        subBlock.canonicalParamId ? [subBlock.canonicalParamId] : []
+      )
+    )
+    for (const subBlock of subBlocks) {
+      if (
+        credentialControls.includes(subBlock) ||
+        (subBlock.canonicalParamId &&
+          credentialCanonicalIds.has(subBlock.canonicalParamId) &&
+          (!subBlock.serviceId || subBlock.serviceId === nextTool.oauth.provider))
+      ) {
+        newParamIds.add(subBlock.id)
+        if (subBlock.canonicalParamId) newParamIds.add(subBlock.canonicalParamId)
+      }
+    }
+  }
+  const preservedParams: Record<string, string> = {}
+  Object.entries(tool.params || {}).forEach(([paramId, value]) => {
+    if (newParamIds.has(paramId) && value) preservedParams[paramId] = value
+  })
+  return clearDependentToolParams(tool.type, preservedParams, 'operation')
+}
@@ -59,7 +59,10 @@ import {
 } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/tool-input/components/custom-tool-modal/custom-tool-modal'
 import { ToolSubBlockRenderer } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/tool-input/components/tools/sub-block-renderer'
 import { ToolUsageControl } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/tool-input/components/tools/usage-control'
-import { clearDependentToolParams } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/tool-input/param-dependents'
+import {
+  clearDependentToolParams,
+  getParamsForToolOperation,
+} from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/tool-input/param-dependents'
 import type { StoredTool } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/components/tool-input/types'
 import {
   isAgentToolBlock,
@@ -111,7 +114,6 @@ import {
   formatParameterLabel,
   getSubBlocksForToolInput,
   getToolIdForOperation,
-  isUserFacingToolParam,
   type SubBlocksForToolInput,
 } from '@/tools/params'
 
@@ -979,18 +981,7 @@ export const ToolInput = memo(function ToolInput({
         return
       }
 
-      const newParamIds = new Set(
-        Object.entries(newToolConfig.params ?? {})
-          .filter(([, param]) => isUserFacingToolParam(param))
-          .map(([paramId]) => paramId)
-      )
-
-      const preservedParams: Record<string, string> = {}
-      Object.entries(tool.params || {}).forEach(([paramId, value]) => {
-        if (newParamIds.has(paramId) && value) {
-          preservedParams[paramId] = value
-        }
-      })
+      const preservedParams = getParamsForToolOperation(tool, newToolConfig)
 
       if (tool.type === 'jira') {
         const subBlockStore = useSubBlockStore.getState()
@@ -1529,9 +1520,18 @@ export const ToolInput = memo(function ToolInput({
               ? (toolBlocks.find((block) => block.type === tool.type) ?? getBlock(tool.type))
               : null
 
+          const hasOperations =
+            !isCustomTool && !isMcpFamily && hasMultipleOperations(toolBlock ?? undefined)
+          const operationChoices = hasOperations
+            ? getOperationChoices(toolBlock ?? undefined)
+            : null
+          const selectedOperation =
+            tool.operation ||
+            operationChoices?.options.find((option) => !operationChoices.denied.has(option.id))?.id
+
           const currentToolId =
             !isCustomTool && !isMcpFamily
-              ? getToolIdForOperation(tool.type, tool.operation, toolBlock ?? undefined) ||
+              ? getToolIdForOperation(tool.type, selectedOperation, toolBlock ?? undefined) ||
                 tool.toolId ||
                 ''
               : tool.toolId || ''
@@ -1555,8 +1555,8 @@ export const ToolInput = memo(function ToolInput({
                   currentToolId,
                   tool.type,
                   {
-                    operation: tool.operation,
                     ...tool.params,
+                    operation: selectedOperation,
                   },
                   toolScopedOverrides,
                   toolBlock ?? undefined
@@ -1609,8 +1609,6 @@ export const ToolInput = memo(function ToolInput({
                   toolCredential?.type === sb.reactiveCondition.requiredType
               )
 
-          const hasOperations =
-            !isCustomTool && !isMcpFamily && hasMultipleOperations(toolBlock ?? undefined)
           const showToolControl = supportsToolControl && !(isMcpTool && isMcpToolUnavailable(tool))
           const hasToolBody = showToolControl || hasOperations || displaySubBlocks.length > 0
 
@@ -1869,10 +1867,8 @@ export const ToolInput = memo(function ToolInput({
                   )}
                   {/* Operation dropdown for tools with multiple operations */}
                   {(() => {
-                    if (!hasOperations) return null
-                    const { options: operationOptions, denied } = getOperationChoices(
-                      toolBlock ?? undefined
-                    )
+                    if (!operationChoices) return null
+                    const { options: operationOptions, denied } = operationChoices
                     if (operationOptions.length === 0) return null
 
                     return (
@@ -1884,10 +1880,7 @@ export const ToolInput = memo(function ToolInput({
                             value: option.id,
                             hidden: denied.has(option.id),
                           }))}
-                          value={
-                            tool.operation ||
-                            operationOptions.find((option) => !denied.has(option.id))?.id
-                          }
+                          value={selectedOperation}
                           onChange={(value) => handleOperationChange(toolIndex, value)}
                           placeholder='Select operation'
                           /* Denied operations only drop out once the config
@@ -1912,7 +1905,7 @@ export const ToolInput = memo(function ToolInput({
                         canonicalGroup && hasCanonicalPair
                           ? resolveCanonicalMode(
                               canonicalGroup,
-                              { operation: tool.operation, ...tool.params },
+                              { ...tool.params, operation: selectedOperation },
                               toolScopedOverrides
                             )
                           : undefined
@@ -1949,6 +1942,7 @@ export const ToolInput = memo(function ToolInput({
                             effectiveParamId={effectiveParamId}
                             toolType={tool.type}
                             toolParams={tool.params}
+                            operation={selectedOperation}
                             onParamChange={handleParamChange}
                             disabled={disabled}
                             canonicalToggle={canonicalToggleProp}
 
@@ -11,6 +11,7 @@ import {
 import { isEqual } from 'es-toolkit'
 import type { FilterRule, SortRule } from '@/lib/table/query-builder/constants'
 import type { FallbackModelEntry } from '@/lib/workflows/blocks/fallback-models'
+import { buildSubBlockValues } from '@/lib/workflows/subblocks/visibility'
 import { useWorkflowScope } from '@/app/workspace/[workspaceId]/providers/workflow-scope-provider'
 import {
   CheckboxList,
@@ -121,10 +122,10 @@ interface SubBlockProps {
  * Supports boolean, condition objects, and functions that return conditions.
  *
  * @param config - The sub-block configuration containing requirement rules
- * @param subBlockValues - Current values of all subblocks for condition evaluation
+ * @param values - Flat sibling values for condition evaluation
  * @returns `true` if the field is required based on current context
  */
-const isFieldRequired = (config: SubBlockConfig, subBlockValues?: Record<string, any>): boolean => {
+const isFieldRequired = (config: SubBlockConfig, values?: Record<string, any>): boolean => {
   if (!config.required) return false
   if (typeof config.required === 'boolean') return config.required
 
@@ -141,7 +142,7 @@ const isFieldRequired = (config: SubBlockConfig, subBlockValues?: Record<string,
     },
     values: Record<string, any>
   ): boolean => {
-    const fieldValue = values[cond.field]?.value
+    const fieldValue = values[cond.field]
     const condValue = cond.value
 
     let match: boolean
@@ -154,7 +155,7 @@ const isFieldRequired = (config: SubBlockConfig, subBlockValues?: Record<string,
     if (cond.not) match = !match
 
     if (cond.and) {
-      const andFieldValue = values[cond.and.field]?.value
+      const andFieldValue = values[cond.and.field]
       const andCondValue = cond.and.value
       let andMatch: boolean
       if (Array.isArray(andCondValue)) {
@@ -169,8 +170,9 @@ const isFieldRequired = (config: SubBlockConfig, subBlockValues?: Record<string,
     return match
   }
 
-  const condition = typeof config.required === 'function' ? config.required() : config.required
-  return evalCond(condition, subBlockValues || {})
+  const condition =
+    typeof config.required === 'function' ? config.required(values) : config.required
+  return evalCond(condition, values || {})
 }
 
 /**
@@ -199,7 +201,7 @@ const getPreviewValue = (
  *
  * @param config - The sub-block configuration defining the label content
  * @param isValidJson - Whether the JSON content is valid (for code blocks)
- * @param subBlockValues - Current values of all subblocks for evaluating conditional requirements
+ * @param requiredValues - Flat sibling values for evaluating conditional requirements
  * @param wandState - State and handlers for the inline AI generate feature
  * @param canonicalToggle - Metadata and handlers for the basic/advanced mode toggle
  * @param canonicalToggleIsDisabled - Whether the canonical toggle is disabled (includes dependsOn gating)
@@ -210,7 +212,7 @@ const getPreviewValue = (
 const renderLabel = (
   config: SubBlockConfig,
   isValidJson: boolean,
-  subBlockValues?: Record<string, any>,
+  requiredValues?: Record<string, any>,
   wandState?: {
     isSearchActive: boolean
     searchQuery: string
@@ -246,7 +248,7 @@ const renderLabel = (
   if (config.type === 'switch') return null
   if (!config.title) return null
 
-  const required = isFieldRequired(config, subBlockValues)
+  const required = isFieldRequired(config, requiredValues)
   const showWand = wandState?.isWandEnabled && !wandState.isPreview && !wandState.disabled
   const showCanonicalToggle = !!canonicalToggle && !wandState?.isPreview
   const showCopy = copyState?.showCopyButton && !wandState?.isPreview
@@ -617,6 +619,12 @@ function SubBlockComponent({
     | null
     | undefined
 
+  const requiredValues =
+    !isPreview && dependencyContext
+      ? dependencyContext
+      : subBlockValues
+        ? buildSubBlockValues(subBlockValues)
+        : undefined
   const contextValues = dependencyContext ?? (isPreview ? subBlockValues : undefined)
 
   const { finalDisabled: gatedDisabled } = useDependsOnGate(blockId, config, {
@@ -956,7 +964,7 @@ function SubBlockComponent({
               blockId={blockId}
               subBlock={config}
               disabled={isDisabled}
-              required={isFieldRequired(config, subBlockValues)}
+              required={isFieldRequired(config, requiredValues)}
               isPreview={isPreview}
               previewValue={previewValue}
             />
@@ -1248,7 +1256,7 @@ function SubBlockComponent({
       {renderLabel(
         config,
         isValidJson,
-        subBlockValues,
+        requiredValues,
         {
           isSearchActive,
           searchQuery,