feat(search): add Sim Search mode, connectors tab, and cited sources

- Build/Search mode switcher in the chat composer; Search mode swaps the
  suggested actions for Connect Sim Search rows that open the OAuth modal
- Search tab beside Integrations and Skills: a personally scoped catalog
  of knowledge-base connectors with connect-in-place rows and a
  connected-credential page without sharing or members
- <source> special tag contract: inline citation chips at the citation
  point plus a scrolling, right-faded sources strip under the reply
- chip `shape` variant so a fully round chip is chip chrome, not a class
  override
- keep the connector catalog out of the workflow editor's module graph
  and record the new routes in the boundary baseline

Author: emir-karabeg

apps/sim/app/workspace/[workspaceId]/components/integration-tabs-header/integration-tabs-header.tsx

@@ -3,19 +3,19 @@ import { ChipLink, cn } from '@sim/emcn'
 import { HEADER_ACTION_CLUSTER, PAGE_HEADER_BAR } from '@/components/page-header-bar'
 
 interface IntegrationTabsHeaderProps {
-  active: 'integrations' | 'skills'
+  active: 'integrations' | 'skills' | 'search'
   workspaceId: string
   /** Trailing actions for the owning page (e.g. skills' "Add skill"). */
   rightSlot?: ReactNode
 }
 
 /**
- * Top-of-page tab header shared by the Integrations and Skills pages — two halves
- * of one surface, so each highlights itself and links to its sibling.
+ * Top-of-page tab header shared by the Integrations, Skills, and Search pages —
+ * three views of one surface, so each highlights itself and links to its siblings.
  *
  * Lives in the shared workspace components rather than under `integrations/`
- * because both pages own it equally; its former home made Skills reach across into
- * a sibling feature for its own chrome.
+ * because every page owns it equally; its former home made Skills reach across
+ * into a sibling feature for its own chrome.
  *
  * The `gap-1` is explicit because chips carry no outer margin — the parent owns the
  * space between them.
@@ -33,6 +33,9 @@ export function IntegrationTabsHeader({
       <ChipLink href={`/workspace/${workspaceId}/skills`} active={active === 'skills'}>
         Skills
       </ChipLink>
+      <ChipLink href={`/workspace/${workspaceId}/search`} active={active === 'search'}>
+        Search
+      </ChipLink>
       {rightSlot && <div className={cn('ml-auto', HEADER_ACTION_CLUSTER)}>{rightSlot}</div>}
     </div>
   )

apps/sim/app/workspace/[workspaceId]/home/components/index.ts

@@ -12,5 +12,4 @@ export {
   useMothershipResources,
 } from './mothership-resources-context'
 export { QueuedMessages } from './queued-messages'
-export { SuggestedActions } from './suggested-actions'
 export { UserInput, type UserInputHandle } from './user-input'

apps/sim/app/workspace/[workspaceId]/home/components/message-content/components/chat-content/chat-content.test.ts

@@ -15,6 +15,14 @@ describe('sanitizeChatDisplayContent', () => {
     )
   })
 
+  it('unwraps source tags from inline code spans', () => {
+    const content = '`Block them first. <source>{"url":"https://docs.github.com/a"}</source>`'
+
+    expect(sanitizeChatDisplayContent(content)).toBe(
+      'Block them first. <source>{"url":"https://docs.github.com/a"}</source>'
+    )
+  })
+
   it('removes hidden internal references wrapped in inline code', () => {
     const content = 'Read `internal/tool-results/read-1.md` and found the issue.'
 

apps/sim/app/workspace/[workspaceId]/home/components/message-content/components/chat-content/chat-content.tsx

@@ -1,6 +1,15 @@
 'use client'
 
-import { type ComponentPropsWithoutRef, memo, useEffect, useMemo, useRef, useState } from 'react'
+import {
+  type ComponentPropsWithoutRef,
+  createContext,
+  memo,
+  useContext,
+  useEffect,
+  useMemo,
+  useRef,
+  useState,
+} from 'react'
 import { Streamdown } from 'streamdown'
 import 'streamdown/styles.css'
 // prismjs core must load before its language components — they register on the
@@ -15,10 +24,15 @@ import { Checkbox, CopyCodeButton, cn, languages, highlight as prismHighlight }
 import { decodeVfsSegmentSafe } from '@/lib/copilot/vfs/path-utils'
 import { extractTextContent } from '@/lib/core/utils/react-node-text'
 import { ContextMentionIcon } from '@/app/workspace/[workspaceId]/home/components/context-mention-icon'
+import {
+  SourceChip,
+  sourceLabel,
+} from '@/app/workspace/[workspaceId]/home/components/message-content/components/source-chip'
 import {
   type ContentSegment,
   type CredentialSubmissionPayload,
   parseSpecialTags,
+  type SourceTagData,
   SpecialTags,
 } from '@/app/workspace/[workspaceId]/home/components/message-content/components/special-tags'
 import type {
@@ -108,9 +122,33 @@ function nextInlineSegmentLabel(segment?: ContentSegment): string {
   // Thinking segments are never rendered, so they contribute no following text.
   if (segment.type === 'text') return segment.content
   if (segment.type === 'workspace_resource') return segment.data.title || segment.data.id || ''
+  if (segment.type === 'source') return sourceLabel(segment.data)
   return ''
 }
 
+/**
+ * The `<source>` payloads of the segment being rendered, in emission order. An
+ * inline citation is written into the markdown as `[label](#src-N)` so it flows
+ * with its paragraph, and the link renderer resolves `N` back through this
+ * context — the component map is static, so it is the one channel from segment
+ * data into it.
+ */
+const SourceRefsContext = createContext<readonly SourceTagData[]>([])
+
+const SOURCE_LINK_PREFIX = '#src-'
+
+interface SourceReferenceProps {
+  index: number
+  children?: React.ReactNode
+}
+
+/** The inline citation chip; a dangling index falls back to the link text. */
+function SourceReference({ index, children }: SourceReferenceProps) {
+  const source = useContext(SourceRefsContext)[index]
+  if (!source) return <>{children}</>
+  return <SourceChip source={source} />
+}
+
 function appendInlineReferenceMarkdown(
   currentMarkdown: string,
   referenceMarkdown: string,
@@ -263,6 +301,13 @@ const MARKDOWN_COMPONENTS = {
     )
   },
   a({ children, href }: { children?: React.ReactNode; href?: string }) {
+    if (href?.startsWith(SOURCE_LINK_PREFIX)) {
+      return (
+        <SourceReference index={Number(href.slice(SOURCE_LINK_PREFIX.length))}>
+          {children}
+        </SourceReference>
+      )
+    }
     if (href?.startsWith('#wsres-')) {
       const match = href.match(/^#wsres-(\w+)-(.+)$/)
       const type = match?.[1]
@@ -566,14 +611,20 @@ function ChatContentInner({
 
   type BlockSegment = Exclude<
     ContentSegment,
-    { type: 'text' } | { type: 'thinking' } | { type: 'workspace_resource' }
+    { type: 'text' } | { type: 'thinking' } | { type: 'workspace_resource' } | { type: 'source' }
   >
   type RenderGroup =
     | { kind: 'inline'; markdown: string }
     | { kind: 'block'; segment: BlockSegment; index: number }
 
+  const sourceRefs = useMemo(
+    () => parsed.segments.flatMap((segment) => (segment.type === 'source' ? [segment.data] : [])),
+    [parsed]
+  )
+
   const groups: RenderGroup[] = []
   let pendingMarkdown = ''
+  let sourceIndex = 0
 
   const flushMarkdown = () => {
     if (pendingMarkdown.trim()) {
@@ -596,6 +647,16 @@ function ChatContentInner({
         `[${label}](<#wsres-${s.data.type}-${ref}>)`,
         nextSegment
       )
+    } else if (s.type === 'source') {
+      // A citation always stands off from the sentence it supports, even when
+      // the model closes the sentence on punctuation the word-boundary rule
+      // would otherwise glue the chip to.
+      if (pendingMarkdown && !/\s$/.test(pendingMarkdown)) pendingMarkdown += ' '
+      pendingMarkdown = appendInlineReferenceMarkdown(
+        pendingMarkdown,
+        `[${sourceLabel(s.data)}](<${SOURCE_LINK_PREFIX}${sourceIndex++}>)`,
+        nextSegment
+      )
     } else if (s.type === 'thinking') {
       // Model-emitted <thinking> tag bodies are reasoning, not answer text —
       // never rendered (matches the block-level thinking omission in
@@ -621,40 +682,42 @@ function ChatContentInner({
    * the new special block mounts.
    */
   return (
-    <div className='space-y-3'>
-      {groups.map((group, i) => {
-        if (group.kind === 'inline') {
-          return (
-            <div
-              key={`inline-${i}`}
-              className={cn(PROSE_CLASSES, '[&>:first-child]:mt-0 [&>:last-child]:mb-0')}
-            >
-              <Streamdown
-                key={streamingTree ? 'stream' : 'settled'}
-                mode={parserTree ? undefined : 'static'}
-                animated={fadeActive ? STREAM_ANIMATION : false}
-                isAnimating={streamingTree}
-                components={MARKDOWN_COMPONENTS}
+    <SourceRefsContext.Provider value={sourceRefs}>
+      <div className='space-y-3'>
+        {groups.map((group, i) => {
+          if (group.kind === 'inline') {
+            return (
+              <div
+                key={`inline-${i}`}
+                className={cn(PROSE_CLASSES, '[&>:first-child]:mt-0 [&>:last-child]:mb-0')}
               >
-                {group.markdown}
-              </Streamdown>
-            </div>
+                <Streamdown
+                  key={streamingTree ? 'stream' : 'settled'}
+                  mode={parserTree ? undefined : 'static'}
+                  animated={fadeActive ? STREAM_ANIMATION : false}
+                  isAnimating={streamingTree}
+                  components={MARKDOWN_COMPONENTS}
+                >
+                  {group.markdown}
+                </Streamdown>
+              </div>
+            )
+          }
+          return (
+            <SpecialTags
+              key={`special-${group.index}`}
+              segment={group.segment}
+              interactionId={`${messageId ?? 'message'}:${group.index}`}
+              questionAnswers={questionAnswers}
+              credentialSubmission={credentialSubmission}
+              credentialAbandoned={credentialAbandoned}
+              onOptionSelect={onOptionSelect}
+              onQuestionDismiss={onQuestionDismiss}
+            />
           )
-        }
-        return (
-          <SpecialTags
-            key={`special-${group.index}`}
-            segment={group.segment}
-            interactionId={`${messageId ?? 'message'}:${group.index}`}
-            questionAnswers={questionAnswers}
-            credentialSubmission={credentialSubmission}
-            credentialAbandoned={credentialAbandoned}
-            onOptionSelect={onOptionSelect}
-            onQuestionDismiss={onQuestionDismiss}
-          />
-        )
-      })}
-    </div>
+        })}
+      </div>
+    </SourceRefsContext.Provider>
   )
 }
 

apps/sim/app/workspace/[workspaceId]/home/components/message-content/components/chat-content/chat-sanitize.ts

@@ -2,7 +2,9 @@ const HIDDEN_INLINE_REFERENCE_PATTERN =
   /`[^`\n]*(?:internal\/tool-results\/|internal\/blocktips\/|components\/integrations\/[^`\n]*README)[^`\n]*`/g
 
 /**
- * A complete workspace-resource tag: opener, payload, closer.
+ * A complete inline-chip tag — `<workspace_resource>` or `<source>` — as
+ * opener, payload, closer. Both are JSON-bodied tags the model places inside a
+ * sentence, so both attract the same stray backticks.
  *
  * Two constraints on the payload, both load-bearing:
  *
@@ -19,10 +21,10 @@ const HIDDEN_INLINE_REFERENCE_PATTERN =
  * is rare; the failure it replaces corrupts a whole message and is common.
  */
 const COMPLETE_TAG_SOURCE =
-  '<workspace_resource>(?:(?!<workspace_resource>)[^`])*?<\\/workspace_resource>'
+  '<(?<chipTag>workspace_resource|source)>(?:(?!<\\k<chipTag>>)[^`])*?<\\/\\k<chipTag>>'
 
 /** Non-global so {@link RegExp.test} has no `lastIndex` to carry between calls. */
-const COMPLETE_WORKSPACE_RESOURCE_TAG = new RegExp(COMPLETE_TAG_SOURCE)
+const COMPLETE_INLINE_CHIP_TAG = new RegExp(COMPLETE_TAG_SOURCE)
 
 /**
  * One left-to-right pass over the two things that can own a backtick: an inline
@@ -57,7 +59,7 @@ export function sanitizeChatDisplayContent(content: string): string {
       // lifts the tag out either way, so leaving the delimiters would strand a
       // pair of backticks around a hole. Anything else is someone else's span.
       const inner = match.slice(1, -1)
-      return COMPLETE_WORKSPACE_RESOURCE_TAG.test(inner) ? inner : match
+      return COMPLETE_INLINE_CHIP_TAG.test(inner) ? inner : match
     })
     .replace(HIDDEN_INLINE_REFERENCE_PATTERN, '')
 }

apps/sim/app/workspace/[workspaceId]/home/components/message-content/components/chat-content/external-link.tsx

@@ -6,7 +6,7 @@ import { faviconUrl } from '@/lib/core/utils/favicon'
 import { useLinkPreview } from '@/hooks/queries/link-preview'
 
 /** Hides a favicon img that failed to load so the link degrades to plain text. */
-function hideBrokenFavicon(e: React.SyntheticEvent<HTMLImageElement>): void {
+export function hideBrokenFavicon(e: React.SyntheticEvent<HTMLImageElement>): void {
   e.currentTarget.style.display = 'none'
 }
 
@@ -44,7 +44,10 @@ interface ExternalLinkProps {
  * which the shell routes to the system browser. In a web browser this is a
  * no-op and the link opens a new tab as usual.
  */
-function handleLinkClick(event: React.MouseEvent<HTMLAnchorElement>, href: string): void {
+export function handleExternalLinkClick(
+  event: React.MouseEvent<HTMLAnchorElement>,
+  href: string
+): void {
   if (event.metaKey || event.ctrlKey || event.shiftKey || event.button !== 0) return
   if (!shouldOpenInBrowserPanel(href)) return
   event.preventDefault()
@@ -63,7 +66,7 @@ export function ExternalLink({ href, hostname, children }: ExternalLinkProps) {
           className='not-prose group text-[var(--text-primary)] no-underline'
           target='_blank'
           rel='noopener noreferrer'
-          onClick={(event) => handleLinkClick(event, href)}
+          onClick={(event) => handleExternalLinkClick(event, href)}
         >
           <img
             src={faviconUrl(hostname, 32)}

apps/sim/app/workspace/[workspaceId]/home/components/message-content/components/index.ts

@@ -1,6 +1,8 @@
 export type { AgentGroupItem, NestedAgentGroup } from './agent-group'
 export { AgentGroup, CircleStop, isAgentGroupResolved } from './agent-group'
 export { ChatContent } from './chat-content'
+export { MessageSources } from './message-sources'
 export { Options } from './options'
 export { QuestionDisplay } from './question'
+export { SourceChip, sourceLabel } from './source-chip'
 export { PendingTagIndicator, parseSpecialTags, SpecialTags } from './special-tags'

apps/sim/app/workspace/[workspaceId]/home/components/message-content/components/message-sources/index.ts

@@ -0,0 +1 @@
+export { MessageSources } from './message-sources'