Strut

Generates writing suggestions and completes partial content by analyzing the current document context and user intent. The system maintains awareness of document structure, tone, and previously written sections to provide contextually relevant suggestions rather than generic completions. Integration with LLM APIs (likely OpenAI or similar) enables real-time suggestion generation as users type or request rewrites.

Enables non-linear rearrangement of document sections through a visual block-based interface where users can drag content units (paragraphs, sections, or outline items) to new positions. The system preserves internal formatting, links, and metadata during moves while automatically updating cross-references and table of contents if present. Built on a block-based document model (similar to Notion or Roam) rather than traditional linear text editing.

Analyzes document text for grammatical errors, style issues, and clarity problems using NLP and rule-based checking. Provides inline suggestions for corrections with explanations of why the change is recommended. Learns from user corrections to improve suggestion accuracy over time. Supports multiple language variants (US English, British English, etc.) and style guides (AP, Chicago, MLA).

Enables multiple users to edit the same document simultaneously with live cursor positions, selection highlighting, and automatic conflict resolution. Uses operational transformation (OT) or CRDT (Conflict-free Replicated Data Type) algorithms to merge concurrent edits from multiple users without requiring manual conflict resolution. Presence indicators show which users are currently viewing/editing and their cursor positions in real-time.

Analyzes selected text and generates alternative versions with different tones, styles, or purposes (e.g., formal to casual, technical to accessible, passive to active voice). The system uses prompt engineering and LLM fine-tuning to understand tone parameters and apply them consistently across rewrites. Users can select predefined tone profiles or define custom tone guidelines that persist across rewrites.

Analyzes document content or user-provided topic and automatically generates hierarchical outlines with suggested section headings, subsections, and logical flow. Uses NLP to identify natural topic boundaries in existing text or generates outline structure from scratch based on topic analysis. Outlines are editable and can be converted directly into document structure with placeholder content.

Enables reviewers to leave inline comments on specific text passages with threaded discussion, allowing authors and reviewers to discuss changes without modifying the document directly. Comments are anchored to specific text ranges and persist even if surrounding text is edited. Supports comment resolution workflow where comments can be marked as addressed, creating an audit trail of feedback incorporation.

Analyzes document text to compute readability metrics (Flesch-Kincaid grade level, reading time, word count, sentence complexity) and provides writing quality insights (passive voice percentage, adverb usage, repetition detection). Metrics update in real-time as users write and can be filtered by section or time period. Provides comparative benchmarks against target audience reading level.

Provides pre-built document templates for common writing types (blog posts, reports, guides, proposals) that users can select and customize. Templates include suggested structure, placeholder content, and tone guidelines. AI can customize templates by filling in placeholders based on user input (topic, audience, purpose) and adjusting tone/style parameters. Customized templates become starting points for drafting.

Manages document access permissions with granular role-based controls (view-only, comment-only, edit, admin). Permissions can be assigned to individual users or groups and can be time-limited or revoked at any time. Access logs track who accessed the document and when. Supports public sharing with optional password protection or link expiration.

Maintains complete version history of document changes with timestamps and user attribution. Users can view previous versions, compare changes between versions (diff view), and restore to any previous version. Automatic snapshots are created at regular intervals or manually by users. Version history is searchable by date, user, or change type.