fix(chat): preserve queued edits and render quoted source chips

[waleedlatif1]

Summary

• Update composer mode and Search URL state atomically so a queued Build edit cannot be forced back into Search.
• Clear Search text when leaving through the mode menu while preserving attachments, ordinary agent drafts, and restored queued messages.
• Preserve citation and resource chips whose JSON contains backticks without consuming adjacent code spans or fenced code.

Knowledge access, Slack, and related documentation fixes from #7446 are covered separately by #7451.

Type of Change

• Bug fix

Testing

Passed 189 focused tests across six suites, all 45 repository audits, lint, docs-manifest validation, and the app type-check. Regression assertions fail against the previous behavior. The retained changes completed all eight cleanup passes and a simplification review; malformed chip inputs also retain bounded scanning behavior.

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

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1 Skipped Deployment

Project	Deployment	Actions	Updated
docs	Skipped		Sep 3, 2026 9:16pm UTC

[greptile-apps]

Greptile Summary

This PR coordinates composer mode and Search URL updates so queued edits retain their content, and makes chat-chip sanitization preserve backticks inside JSON strings.

• Moves non-Search query and filter cleanup into the shared mode setter.
• Explicitly clears Search text when the user leaves Search while retaining attachments.
• Replaces chip sanitization with a JSON-string-aware delimiter scan.
• Adds regression coverage for queued-message restoration, mode transitions, and quoted chip payloads.

Confidence Score: 5/5

The PR appears safe to merge.

No blocking failure remains.

Important Files Changed

Filename	Overview
apps/sim/app/workspace/[workspaceId]/home/components/message-content/components/chat-content/chat-sanitize.ts	Introduces a bounded JSON-aware scan that preserves backticks inside source and workspace-resource payloads without consuming neighboring Markdown delimiters.
apps/sim/app/workspace/[workspaceId]/home/hooks/use-mothership-mode.ts	Centralizes mode, query, and Search-filter updates into one URL-state operation when leaving Search.
apps/sim/app/workspace/[workspaceId]/home/components/user-input/user-input.tsx	Adds an explicit Search-exit text reset while preserving attachments and prevents an empty URL seed from overwriting a restored queued message.
apps/sim/app/workspace/[workspaceId]/home/components/user-input/components/mode-switcher/mode-switcher.tsx	Delegates composer cleanup to UserInput before applying the shared atomic mode transition.
apps/sim/app/workspace/[workspaceId]/home/home.tsx	Relies on the shared mode transition to clear Search state during queued-message restoration and result summarization.
apps/sim/app/workspace/[workspaceId]/home/search-params.ts	Defines the combined parser set used to update mode and Search parameters atomically.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart LR
  A[Search composer] --> B{User action}
  B -->|Choose Build or Assistant| C[Clear editor search text]
  C --> D[Atomically update mode and remove q/source/updated]
  B -->|Edit queued message| E[Restore queued request mode]
  E --> D
  D --> F[Load queued text and attachments]
  G[Chat response text] --> H[JSON-aware chip delimiter scan]
  H --> I[Preserve payload backticks]
  I --> J[Render source or resource chip]

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[cubic-dev-ai]

All reported issues were addressed across 23 files

<sub>Reply with feedback, questions, or to request a fix.

Fix all with cubic | Re-trigger cubic</sub>

[waleedlatif1]

@greptile

[waleedlatif1]

@cubic-dev-ai review this PR

[cubic-dev-ai]

@cubic-dev-ai review this PR

@waleedlatif1 I have started the AI code review. It will take a few minutes to complete.

[cubic-dev-ai]

No issues found across 10 files

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

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