diff --git a/frontend/src/lib/components/S3FilePreview.svelte b/frontend/src/lib/components/S3FilePreview.svelte
index 6e3de40668..2a7c3977cd 100644
--- a/frontend/src/lib/components/S3FilePreview.svelte
+++ b/frontend/src/lib/components/S3FilePreview.svelte
@@ -37,6 +37,11 @@
 		// metadata out themselves (the picker already has its own).
 		showMetadata?: boolean
 		class?: string
+		// Bump this to force a re-fetch (metadata + preview). Used by the
+		// asset detail pane after an upstream producer run completes —
+		// without it, the "Asset not yet materialized" empty state stays
+		// pinned until the user re-selects the asset.
+		refreshKey?: any
 	}
 
 	let {
@@ -45,7 +50,8 @@
 		loadFilePreviewRequest = HelpersService.loadFilePreview,
 		loadFileMetadataRequest = HelpersService.loadFileMetadata,
 		showMetadata = false,
-		class: className = ''
+		class: className = '',
+		refreshKey
 	}: Props = $props()
 
 	let csvSeparatorChar: string = $state(',')
@@ -91,12 +97,15 @@
 		return body.includes('not found') || body.includes('404')
 	}
 
-	// Reload whenever the file key changes. Tracking the workspace too —
-	// the asset graph spans workspaces so a re-mount with the same key but
-	// a different ws should refetch.
+	// Reload whenever the file key, workspace, or external refreshKey
+	// changes. The refreshKey path is what lets the asset pane re-check
+	// existence after an upstream run completes — moving from the
+	// "not yet materialized" empty state to the actual preview without
+	// requiring the user to re-click the asset.
 	$effect(() => {
 		const key = fileKey
 		const ws = $workspaceStore
+		void refreshKey
 		if (!key || !ws) {
 			fileMetadata = undefined
 			filePreview = undefined
diff --git a/frontend/src/lib/components/assets/AssetGraph/AssetGraphDetailsPane.svelte b/frontend/src/lib/components/assets/AssetGraph/AssetGraphDetailsPane.svelte
index 777c8fba17..67719e94f2 100644
--- a/frontend/src/lib/components/assets/AssetGraph/AssetGraphDetailsPane.svelte
+++ b/frontend/src/lib/components/assets/AssetGraph/AssetGraphDetailsPane.svelte
@@ -23,6 +23,7 @@
 	import { parsePipelineAnnotations, type PipelineAnnotations } from './parsePipelineAnnotations'
 	import SummaryPathDisplay from '$lib/components/SummaryPathDisplay.svelte'
 	import S3FilePreview from '$lib/components/S3FilePreview.svelte'
+	import DataTablePreview from './DataTablePreview.svelte'
 	import AssetRunsPanel from './AssetRunsPanel.svelte'
 	import { Pane, Splitpanes } from 'svelte-splitpanes'
 	import { fade } from 'svelte/transition'
@@ -69,6 +70,9 @@
 		// re-fetches the listing immediately (rather than waiting on its
 		// background poll tick).
 		runsRefreshKey?: any
+		// Job id of the most recently dispatched run. Forwarded to the
+		// runs panel so that clicking play auto-selects the new run.
+		runsPendingJobId?: string | undefined
 	}
 	let {
 		selection,
@@ -81,9 +85,17 @@
 		onScriptRenamed,
 		onScriptRemoved,
 		selectionProducers = [],
-		runsRefreshKey
+		runsRefreshKey,
+		runsPendingJobId
 	}: Props = $props()
 
+	// Bumped when the runs panel reports a watched job has reached a
+	// terminal state. Drives S3FilePreview's refreshKey so the preview
+	// re-checks existence after a producer run finishes — moves the
+	// "not yet materialized" empty state to the actual preview without
+	// requiring the user to re-click the asset.
+	let previewRefreshKey = $state(0)
+
 	// When `draftScript` is provided we bypass the fetch entirely and edit
 	// it locally; saving calls ScriptService.createScript to deploy it.
 	let scriptRes = resource(
@@ -334,25 +346,38 @@
 
 	<div class="flex-1 min-h-0 relative">
 		{#if selection?.kind === 'asset' && !isDraft}
-			{#if selection.asset_kind === 's3object'}
-				<!-- Vertical split: S3 contents on top, runs detail (with
-				     popover-driven history) on the bottom. Both visible at
-				     once so users can correlate "what's in the file" with
-				     "which run produced it" without flipping tabs. The
-				     splitter lets users grow whichever pane matters more. -->
-				<Splitpanes horizontal class="!h-full">
-					<Pane size={55} minSize={20}>
-						<S3FilePreview fileKey={selection.path} showMetadata class="h-full" />
-					</Pane>
-					<Pane size={45} minSize={20}>
-						<AssetRunsPanel producers={selectionProducers} refreshKey={runsRefreshKey} />
-					</Pane>
-				</Splitpanes>
-			{:else}
-				<div class="p-3 text-xs text-secondary">
-					Asset details. Use the producer/consumer arrows in the graph to navigate.
-				</div>
-			{/if}
+			<!-- Vertical split: top pane is kind-specific (S3 has a content
+			     preview; other kinds fall back to a navigational hint until
+			     they grow their own previews); bottom pane is the runs panel,
+			     which is generic — runs are keyed by producer script path,
+			     not by asset kind, so it's useful for every asset. -->
+			<Splitpanes horizontal class="!h-full">
+				<Pane size={55} minSize={20}>
+					{#if selection.asset_kind === 's3object'}
+						<S3FilePreview
+							fileKey={selection.path}
+							showMetadata
+							class="h-full"
+							refreshKey={previewRefreshKey}
+						/>
+					{:else if selection.asset_kind === 'datatable'}
+						<DataTablePreview path={selection.path} class="h-full" refreshKey={previewRefreshKey} />
+					{:else}
+						<div class="p-3 text-xs text-secondary">
+							No inline preview yet for {selection.asset_kind}. Use the producer/consumer arrows in
+							the graph to navigate. Runs of the upstream script are below.
+						</div>
+					{/if}
+				</Pane>
+				<Pane size={45} minSize={20}>
+					<AssetRunsPanel
+						producers={selectionProducers}
+						refreshKey={runsRefreshKey}
+						pendingJobId={runsPendingJobId}
+						onRunCompleted={() => (previewRefreshKey += 1)}
+					/>
+				</Pane>
+			</Splitpanes>
 		{:else if selection?.kind === 'runnable' && selection.runnable_kind === 'flow' && !isDraft}
 			<div class="p-3 text-xs text-secondary">
 				Flows are not editable inline. Use the open-in-editor button above.
diff --git a/frontend/src/lib/components/assets/AssetGraph/AssetNode.svelte b/frontend/src/lib/components/assets/AssetGraph/AssetNode.svelte
index e3c7b354cd..359e073f9f 100644
--- a/frontend/src/lib/components/assets/AssetGraph/AssetNode.svelte
+++ b/frontend/src/lib/components/assets/AssetGraph/AssetNode.svelte
@@ -9,7 +9,6 @@
 	import type { ScriptLang } from '$lib/gen'
 	import { workspaceStore } from '$lib/stores'
 	import { sendUserToast } from '$lib/utils'
-	import { base } from '$lib/base'
 
 	// Shape used for both the data prop and the run callback. Drafts carry
 	// `content` / `language` so the page-level run handler can dispatch to
@@ -74,22 +73,10 @@
 			// Fire every script producer in parallel — matches what would
 			// happen if every upstream trigger fired together. The handler
 			// internally dispatches to runScriptByPath / runScriptPreview
-			// based on producer.unsaved.
-			const jobs = (await Promise.all(scriptProducers.map((p) => handler(p)))).filter(
-				(j): j is string => !!j
-			)
-			if (jobs.length === 1) {
-				sendUserToast(`Running ${scriptProducers[0].path}`, false, [
-					{
-						label: 'Open run',
-						callback: () => {
-							window.open(`${base}/run/${jobs[0]}?workspace=${$workspaceStore}`, '_blank')
-						}
-					}
-				])
-			} else if (jobs.length > 1) {
-				sendUserToast(`Running ${jobs.length} producers of this asset`)
-			}
+			// based on producer.unsaved. No success toast — the runs panel
+			// auto-selects the new job and shows status/logs/output, so
+			// the toast was redundant.
+			await Promise.all(scriptProducers.map((p) => handler(p)))
 		} catch (err: any) {
 			sendUserToast(`Failed to run: ${err.body ?? err.message}`, true)
 		} finally {
diff --git a/frontend/src/lib/components/assets/AssetGraph/AssetRunsPanel.svelte b/frontend/src/lib/components/assets/AssetGraph/AssetRunsPanel.svelte
index 2b92dd8a9d..a1a2f0d52d 100644
--- a/frontend/src/lib/components/assets/AssetGraph/AssetRunsPanel.svelte
+++ b/frontend/src/lib/components/assets/AssetGraph/AssetRunsPanel.svelte
@@ -33,8 +33,19 @@
 		// uses it after dispatching a run so the new job appears without
 		// waiting for the next poll tick.
 		refreshKey?: any
+		// Most-recently-dispatched job id. When this changes, the panel
+		// switches selection to it so the user lands on their just-started
+		// run without an extra click. Independent of refreshKey so callers
+		// can refresh without forcing a selection change.
+		pendingJobId?: string | undefined
+		// Fires when the watched job transitions to terminal (success or
+		// failure). The asset detail pane uses this to re-check the
+		// asset's preview — a successful run materializes the asset, so
+		// "not yet materialized" can move to the actual preview without
+		// the user re-selecting.
+		onRunCompleted?: () => void
 	}
-	let { producers, refreshKey }: Props = $props()
+	let { producers, refreshKey, pendingJobId, onRunCompleted }: Props = $props()
 
 	let runnableProducers = $derived(producers.filter((p) => p.kind === 'script'))
 	// Stable string key for the producer set. The parent re-derives
@@ -98,20 +109,54 @@
 		}
 	})
 
+	// Track the last pendingJobId we honored. Without this guard, manually
+	// selecting a *different* run from the history popover would be undone
+	// by a re-run of this effect (e.g. on parent re-derivation) — every
+	// trip would slam selectedId back to pendingJobId.
+	let appliedPendingJobId = $state<string | undefined>(undefined)
+	$effect(() => {
+		const id = pendingJobId
+		if (id && id !== appliedPendingJobId) {
+			appliedPendingJobId = id
+			selectedId = id
+		}
+	})
+
+	// Track the id we last started watching so we don't restart the
+	// JobLoader stream on every effect re-run. The earlier flood (~4400
+	// `/jobs_u/get/<id>` requests per second) came from JobLoader.watchJob
+	// being called on every effect tick: each call resets internal state
+	// and fires a fresh `getJob`, so a few extra effect runs per second
+	// snowballed into thousands of fetches.
+	let lastWatchedId = $state<string | undefined>(undefined)
+
 	$effect(() => {
-		// Watch the selected job as soon as one is picked.
 		const id = selectedId
+		if (id === lastWatchedId) return
+		lastWatchedId = id
 		if (!id) {
-			selectedJob = undefined
-			void jobLoader?.clearCurrentJob?.()
+			// untrack: clearCurrentJob reads JobLoader internals (tracked
+			// state in another component); without untrack, those reads
+			// become deps of this effect and any change to them
+			// (e.g. JobLoader's own bind:isLoading writes) would re-run
+			// it.
+			untrack(() => {
+				selectedJob = undefined
+				void jobLoader?.clearCurrentJob?.()
+			})
 			return
 		}
-		void jobLoader?.watchJob(id, {
-			done: () => {
-				// When a run we're watching finishes, refresh the listing so
-				// its row shows the terminal status.
-				void refresh()
-			}
+		untrack(() => {
+			void jobLoader?.watchJob(id, {
+				done: () => {
+					// When a run we're watching finishes, refresh the listing
+					// so its row shows the terminal status, and notify the
+					// parent so the asset preview can re-check existence —
+					// a successful run materializes the asset.
+					void refresh()
+					onRunCompleted?.()
+				}
+			})
 		})
 	})
 
diff --git a/frontend/src/lib/components/assets/AssetGraph/DataTablePreview.svelte b/frontend/src/lib/components/assets/AssetGraph/DataTablePreview.svelte
new file mode 100644
index 0000000000..3475f8236e
--- /dev/null
+++ b/frontend/src/lib/components/assets/AssetGraph/DataTablePreview.svelte
@@ -0,0 +1,87 @@
+<script lang="ts">
+	// Inline preview for a datatable asset. Reuses the existing
+	// DBManagerContent component (the same one the global Database Manager
+	// drawer uses) so users get the same rich rows/schema view here that
+	// they'd get clicking into a datatable from the Assets page.
+	//
+	// The asset path comes in as `<datatable>/<table>` (e.g. `main/event_summary`).
+	// We split that into a `datatable://<datatable>` resourcePath + a
+	// specificTable, mirroring what dbManagerDrawerModel.parse does for the
+	// equivalent URL state.
+	import DBManagerContent from '$lib/components/DBManagerContent.svelte'
+	import type { DbInput } from '$lib/components/dbTypes'
+	import { twMerge } from 'tailwind-merge'
+
+	interface Props {
+		// Asset path as parsed from `datatable://<datatable>/<table>` —
+		// already stripped of the prefix. May be `<datatable>` only (no
+		// table) or `<datatable>/<table>`. We surface a small empty-state
+		// hint when the table half is missing.
+		path: string | undefined
+		// Bump this to force a re-mount and re-fetch (parallel to
+		// S3FilePreview's refreshKey). The asset detail pane uses it after
+		// an upstream run completes so the table contents get re-read
+		// without the user re-clicking.
+		refreshKey?: any
+		class?: string
+	}
+
+	let { path, refreshKey, class: className = '' }: Props = $props()
+
+	// Default schema for datatable inputs is `public` — same default the
+	// dbManagerDrawerModel applies when the URL omits it. The DB manager
+	// resolves the workspace-specific Postgres schema at the connection
+	// level, so we don't have to look it up here.
+	const DEFAULT_SCHEMA = 'public'
+
+	let parsed = $derived.by(() => {
+		const p = path ?? ''
+		const slash = p.indexOf('/')
+		if (slash < 0) return { datatable: p, table: undefined as string | undefined }
+		return { datatable: p.slice(0, slash), table: p.slice(slash + 1) }
+	})
+
+	let input = $derived<DbInput | undefined>(
+		parsed.datatable
+			? {
+					type: 'database',
+					resourceType: 'postgresql',
+					resourcePath: `datatable://${parsed.datatable}`,
+					specificSchema: DEFAULT_SCHEMA,
+					specificTable: parsed.table
+				}
+			: undefined
+	)
+
+	// Selected schema/table for the manager. We pin to public + the parsed
+	// table so the manager opens straight to the right rows; users can
+	// still navigate via the sidebar if they want to see siblings.
+	let selectedSchemaKey = $state<string | undefined>(DEFAULT_SCHEMA)
+	let selectedTableKey = $state<string | undefined>(parsed.table)
+
+	$effect(() => {
+		// Re-pin selection when the path changes (e.g. user clicks a different
+		// datatable asset in the graph).
+		selectedSchemaKey = DEFAULT_SCHEMA
+		selectedTableKey = parsed.table
+	})
+</script>
+
+<div class={twMerge('flex flex-col h-full min-h-0', className)}>
+	{#if !input}
+		<div class="p-3 text-xs text-tertiary">No datatable selected.</div>
+	{:else if !parsed.table}
+		<div class="p-3 text-xs text-tertiary">
+			Pick a specific table — this asset only references the datatable
+			<span class="font-mono">{parsed.datatable}</span>.
+		</div>
+	{:else}
+		<!-- Re-mount on refreshKey so DBManagerContent's internal resources
+		     re-fetch (loadAllTablesMetaData, schemas, etc.) without us
+		     having to thread refresh hooks through the manager. The {#key}
+		     block is a coarse but effective way to do it. -->
+		{#key refreshKey}
+			<DBManagerContent {input} showRepl={false} bind:selectedSchemaKey bind:selectedTableKey />
+		{/key}
+	{/if}
+</div>
diff --git a/frontend/src/routes/(root)/(logged)/pipeline/[folder]/+page.svelte b/frontend/src/routes/(root)/(logged)/pipeline/[folder]/+page.svelte
index ad3df85e97..6d45ed3697 100644
--- a/frontend/src/routes/(root)/(logged)/pipeline/[folder]/+page.svelte
+++ b/frontend/src/routes/(root)/(logged)/pipeline/[folder]/+page.svelte
@@ -563,6 +563,9 @@
 	// the listing immediately — the new (preview or script) job appears in
 	// the history popover without waiting on its 3 s poll tick.
 	let runsRefreshKey = $state(0)
+	// The most recently dispatched job id — surfaces to AssetRunsPanel so
+	// the new run auto-selects without an extra click.
+	let runsPendingJobId = $state<string | undefined>(undefined)
 
 	// Producers (write/rw edges) for the currently-selected asset, derived
 	// from `graphWithDraft.edges`. Threaded into the details pane so the
@@ -815,7 +818,10 @@
 										requestBody: {}
 									})
 								}
-								if (jobId) runsRefreshKey++
+								if (jobId) {
+									runsPendingJobId = jobId
+									runsRefreshKey++
+								}
 								return jobId
 							}}
 						/>
@@ -826,6 +832,7 @@
 								selection={activeDraft ? undefined : selection}
 								selectionProducers={activeDraft ? [] : selectionProducers}
 								{runsRefreshKey}
+								{runsPendingJobId}
 								draftScript={activeDraft?.script}
 								workspace={$workspaceStore}
 								onAnnotationsChange={(scriptPath, annotations) => {