ProWritingAid

Run deep style reports, manuscript checks, and guided rewrites for long-form prose

YES · focused build
price one-time pricingestimated build time one sittingreplaced by 0 people

The core loop is small enough for a capable coding agent to produce a useful local version in one sitting. For ProWritingAid, run deep style reports, manuscript checks, and guided rewrites for long-form prose. The hard boundary is its mature report library, integrations, and fiction-specific analysis, plus polish, integrations, and proprietary language models.

Build verification: not recorded. How we judge buildability

What you give up

  • its mature report library, integrations, and fiction-specific analysis
  • cross-device sync
  • large proprietary style models
  • browser and office-suite extensions
  • team style guides

Why people still pay

People still pay for ProWritingAid because the paid tool is already present everywhere they write and its suggestions have been tuned across millions of documents. The recurring cost buys model quality, extension compatibility, dictionaries, releases, and sync, not just the visible interface.

Your build guide

The stack, security requirements, and agent rules for a focused replacement.

Before you start

  • Node and the Rust toolchain, a supported desktop build environment and an explicitly selected data folder. Remote sync is outside the initial scope.
  • Implementation components: Tauri, React and TypeScript for the desktop interface with a narrowly scoped Rust filesystem bridge. SQLite for structured state and search; user-owned files for original documents and attachments.
  • Scope boundary: its mature report library, integrations, and fiction-specific analysis; cross-device sync
01
Tauri, React and TypeScript for the desktop interface with a narrowly scoped Rust filesystem bridge.
02
SQLite for structured state and search; user-owned files for original documents and attachments.
03
Domain model: manuscripts, sentence spans, deterministic style findings, rewrite suggestions and accepted edits
engineering roadmap

Implementation plan

1

Phase 1

Scope and fixtures. Implement this bounded workflow: Open local prose, run transparent checks for repetition and sentence structure and review suggested rewrites as diffs. Keep original text local unless the user explicitly sends a selected passage to a model. Record prerequisites, select representative user-owned fixtures and document the unsupported features: its mature report library, integrations, and fiction-specific analysis; cross-device sync

2

Phase 2

Durable model. Model manuscripts, sentence spans, deterministic style findings, rewrite suggestions and accepted edits Add migrations or a versioned document format, explicit validation, stable IDs and a visible import-error report. Preserve this rule: Style rules describe choices rather than universal correctness; accepted edits remain undoable and unsupported grammar claims are labeled.

3

Phase 3

Complete the first useful path. Implement the workflow's input, review and output interface, with clear controls and explicit empty/error states. Save edits atomically with stable IDs and revision history. Detect external file changes and offer a conflict copy instead of last-write-wins data loss.

4

Phase 4

Permissions and integration failure. Limit Tauri capabilities to selected folders and commands. Render imported content without executable HTML, and never expose arbitrary shell execution to the webview. Request integration credentials and permissions only for the enabled feature; show a disconnected state instead of mock results.

5

Phase 5

Portable handoff. Provide a portable folder export with a JSON manifest and original files. Restore to a separate folder; rebuild disposable indexes from sources. Include setup, operating limits, fixture walkthrough and shutdown/restart instructions in the README.

6

Phase 6

Acceptance scenarios. Reject a rewrite without changing the manuscript; edit an earlier paragraph and invalidate stale finding offsets instead of highlighting the wrong words. Repeat the workflow after restart and with a denied permission or unavailable dependency; show recoverable failure rather than a success placeholder.

the pro prompt
download AGENTS.md
WORKING SLICE
Open local prose, run transparent checks for repetition and sentence structure and review suggested rewrites as diffs. Keep original text local unless the user explicitly sends a selected passage to a model.

Build this scoped ProWritingAid-inspired workflow with a documented data model and visible failure states.

Architecture
- Tauri, React and TypeScript for the desktop interface with a narrowly scoped Rust filesystem bridge.
- SQLite for structured state and search; user-owned files for original documents and attachments.

Prerequisites and limits
Node and the Rust toolchain, a supported desktop build environment and an explicitly selected data folder. Remote sync is outside the initial scope.
Outside this release: its mature report library, integrations, and fiction-specific analysis; cross-device sync

Data model and correctness
manuscripts, sentence spans, deterministic style findings, rewrite suggestions and accepted edits
Invariant: Style rules describe choices rather than universal correctness; accepted edits remain undoable and unsupported grammar claims are labeled.
Save edits atomically with stable IDs and revision history. Detect external file changes and offer a conflict copy instead of last-write-wins data loss.

Security and privacy
Limit Tauri capabilities to selected folders and commands. Render imported content without executable HTML, and never expose arbitrary shell execution to the webview.

Recovery and export
Provide a portable folder export with a JSON manifest and original files. Restore to a separate folder; rebuild disposable indexes from sources.

Implementation order
1. Phase 1 — Scope and fixtures. Implement this bounded workflow: Open local prose, run transparent checks for repetition and sentence structure and review suggested rewrites as diffs. Keep original text local unless the user explicitly sends a selected passage to a model. Record prerequisites, select representative user-owned fixtures and document the unsupported features: its mature report library, integrations, and fiction-specific analysis; cross-device sync
2. Phase 2 — Durable model. Model manuscripts, sentence spans, deterministic style findings, rewrite suggestions and accepted edits Add migrations or a versioned document format, explicit validation, stable IDs and a visible import-error report. Preserve this rule: Style rules describe choices rather than universal correctness; accepted edits remain undoable and unsupported grammar claims are labeled.
3. Phase 3 — Complete the first useful path. Implement the workflow's input, review and output interface, with clear controls and explicit empty/error states. Save edits atomically with stable IDs and revision history. Detect external file changes and offer a conflict copy instead of last-write-wins data loss.
4. Phase 4 — Permissions and integration failure. Limit Tauri capabilities to selected folders and commands. Render imported content without executable HTML, and never expose arbitrary shell execution to the webview. Request integration credentials and permissions only for the enabled feature; show a disconnected state instead of mock results.
5. Phase 5 — Portable handoff. Provide a portable folder export with a JSON manifest and original files. Restore to a separate folder; rebuild disposable indexes from sources. Include setup, operating limits, fixture walkthrough and shutdown/restart instructions in the README.
6. Phase 6 — Acceptance scenarios. Reject a rewrite without changing the manuscript; edit an earlier paragraph and invalidate stale finding offsets instead of highlighting the wrong words. Repeat the workflow after restart and with a denied permission or unavailable dependency; show recoverable failure rather than a success placeholder.

Acceptance
Reject a rewrite without changing the manuscript; edit an earlier paragraph and invalidate stale finding offsets instead of highlighting the wrong words.
Use real source data or clearly labeled fixtures. Explain unsupported input and provider failures; do not fabricate analytics, delivery receipts, accuracy claims or security guarantees.

Optional agent guidance
Optional external skill: [vercel-react-best-practices](https://github.com/vercel-labs/agent-skills/blob/main/skills/react-best-practices/SKILL.md) — Improve React and Next.js data fetching, rendering, bundle size and server performance. Review its instructions and compatibility before use; it does not grant deployment, data-access or publication permission.
Optional external skill: [web-design-guidelines](https://github.com/vercel-labs/agent-skills/blob/main/skills/web-design-guidelines/SKILL.md) — Review web interfaces for accessibility, keyboard focus, forms, navigation and interaction quality. Review its instructions and compatibility before use; it does not grant deployment, data-access or publication permission.
Optional external skill: [sharp-edges](https://github.com/trailofbits/skills/blob/main/plugins/sharp-edges/skills/sharp-edges/SKILL.md) — Review security-sensitive APIs and configuration for dangerous defaults and easy-to-misuse interfaces. Review its instructions and compatibility before use; it does not grant deployment, data-access or publication permission.
Project rule — data model: manuscripts, sentence spans, deterministic style findings, rewrite suggestions and accepted edits
Project rule — preserve this invariant: Style rules describe choices rather than universal correctness; accepted edits remain undoable and unsupported grammar claims are labeled.
Project rule — acceptance evidence: Reject a rewrite without changing the manuscript; edit an earlier paragraph and invalidate stale finding offsets instead of highlighting the wrong words.

$ open in your agent (prompt prefilled, you press enter), copy the prompt or copy or download AGENTS.md · generated from this app's build plan

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Alternatives to building your own

WritingToolA LibreOffice extension with long-document checks, style statistics, profiles, and local AI; installing Java is the cover charge.65jul 2026open source↗

no votes, no pay-to-list · just what's real

ProWritingAid pricing

planmonthlyannual (per mo)what you get
free$0/user$0/user500 words at a time; 2 runs/report/day; 10 Rephrases/day; 3 Sparks/dayAdvanced whole-manuscript tools consume separately purchased Story Credits.
premium$30/user$10/userUnlimited word count, Rephrases, report runs and storage; 5 Sparks/day; 1 Chapter Critique/dayAnnual plan is $120/year; lifetime license is a separate $399 one-time purchase.
premium pro$36/user$12/userUnlimited word count/reports; 50 Sparks/day; 3 Chapter Critiques/day; 200+ workshop recordingsAnnual plan is $144/year; lifetime license is a separate $699 one-time purchase.
premium lifetime——Same core limits as Premium, including 5 Sparks/day and 1 Chapter Critique/dayOne-time payment of $399.
premium pro lifetime——Same core limits as Premium Pro, including 50 Sparks/day and 3 Chapter Critiques/dayOne-time payment of $699.

free tier500 words at a time, 2 runs per report per day, 10 Rephrases per day and 3 Sparks per day

billingmonthly + annual + lifetime; monthly/annual subscriptions auto-renew

hidden costsManuscript Analysis, Virtual Beta Reader and Marketability Analysis use separately purchased Story Credits; paid tiers only discount those credits (up to 40% Premium, 65% Premium Pro).

pricing sources checked 2026-08-12 · pricing source ↗

Questions about ProWritingAid

Can you build your own ProWritingAid with AI?

The verdict is yes for the scoped workflow. The core loop is small enough for a capable coding agent to produce a useful local version in one sitting. For ProWritingAid, run deep style reports, manuscript checks, and guided rewrites for long-form prose. The hard boundary is its mature report library, integrations, and fiction-specific analysis, plus polish, integrations, and proprietary language models.

What does the ProWritingAid build prompt cover?

The prompt starts with this scope: Open local prose, run transparent checks for repetition and sentence structure and review suggested rewrites as diffs. Keep original text local unless the user explicitly sends a selected passage to a model. Full-product capabilities excluded from the comparison include: its mature report library, integrations, and fiction-specific analysis; cross-device sync; large proprietary style models. Follow the implementation plan and its prerequisites before expanding the build.

How do I use the prompt, AGENTS.md and agent skills?

Start with the ProWritingAid prerequisites and stack, then copy the prompt into your coding agent. Save the project rules as AGENTS.md in the project root. Linked skills are optional packages or source instructions for specific tasks; review their current contents and install only those matching the chosen stack. A skill does not supply API credentials or verify the finished app.

How long will this ProWritingAid project take?

The catalogue estimate is one sitting for the limited scope. Setup, integration approvals, debugging, deployment and ongoing maintenance can add time. This is an estimate, not a delivery guarantee.

What would I give up by replacing ProWritingAid?

its mature report library, integrations, and fiction-specific analysis; cross-device sync; large proprietary style models; browser and office-suite extensions; team style guides. People still pay for ProWritingAid because the paid tool is already present everywhere they write and its suggestions have been tuned across millions of documents. The recurring cost buys model quality, extension compatibility, dictionaries, releases, and sync, not just the visible interface.

What can I use instead of building ProWritingAid?

WritingTool: A LibreOffice extension with long-document checks, style statistics, profiles, and local AI; installing Java is the cover charge. Check each option's license, hosting needs and feature limits.

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