PromptDC for AI agents

PromptDC is a profile-driven writing and prompt enhancer. An authorized agent may operate the website for a signed-in user, including billing and account tasks, but must not scrape or index protected account pages.

Last updated: August 2026

Authentication

Google or Apple OAuth only

Access

A paid plan is required; there is no free plan

Operation

Use data-agent selectors and exact labels

Start with discovery

These public files describe the product and expose stable operating instructions without requiring pixel inference.

Product manifest

Read agents.json for surfaces, authentication, profiles, formats, shortcuts, plans, and policies.

Operating actions

Read agent-actions.json for ordered steps, exact labels, URLs, and stable selectors.

Product facts

Read llms.txt or llms-full.txt, then use the sitemap for public pages.

Sign in and choose a plan

  1. 01

    Open sign-in

    Go to /login and choose the exact Continue with Google or Continue with Apple button. The web app has no email/password fields and no web-app API-key sign-in.

  2. 02

    Complete OAuth and onboarding

    Complete the provider flow. PromptDC returns to the requested page, /account for a configured user, or /onboarding for a new account.

  3. 03

    Obtain the user's plan choice

    PromptDC has no free plan or free trial. Pro is $9/month for 200 enhancements and 50 library files; Enterprise is $15/month for unlimited enhancements and files; Developer Lifetime is a tiered $69, $99, or $124 one-time BYOK purchase with unlimited enhancements and files. Eligible account states may also expose Starter at $1 one-time for 30 total enhancements and 5 public files.

  4. 04

    Use Stripe Checkout

    Open /account/subscription?plan=pro, ?plan=enterprise, ?plan=developer, or ?plan=starter. PromptDC creates a Stripe Checkout session. Review the plan and price with the user before completing payment.

  5. 05

    Manage or cancel

    On /account/subscription, choose the exact Manage Plan button to open Stripe's billing portal. The portal handles cancellation, plan changes, and payment details. Developer Lifetime is a one-time purchase, not a recurring subscription.

Profiles and formats

Use profile language throughout PromptDC. Code is a profile; the retired Writing/Coding split is not an operating model.

Grammar

Correct spelling, grammar, punctuation, and awkward phrasing while preserving meaning and voice.

Email

Turn notes into a complete email with subject, greeting, body, and sign-off.

Social

Create a platform-appropriate, skimmable social post.

Image Prompt

Expand an idea into a detailed text-to-image prompt.

Summarize

Condense text while preserving key facts, decisions, numbers, deadlines, and actions.

Reply

Draft a concise response without inventing facts or commitments.

Professional

Rewrite in a polished workplace tone while preserving facts and intent.

Concise

Remove filler and repetition while keeping every essential point.

Explain

Rewrite complex material in clear language for a general audience.

Code

Turn a rough coding request into an implementation-ready prompt for the current tool.

Code output

The Code profile supports Regular, XML, JSON, and YAML output. Its system prompt is supplied by the backend; the account page exposes Simple or Structured enhancement, Format, and Always Include controls instead.

Account page map

All account routes require authentication and completed onboarding. Use the account-nav-* selectors in the sidebar.
PageRoutePurpose and flow
Install/accountDownload PromptDC Desktop or install and review the Chrome, VS Code, Cursor, Trae, Windsurf, Kiro, and Antigravity extensions.
Profiles/account/profilesCreate, edit, reorder, delete, or restore profiles; configure Code output; and add per-website profile rules.
Library/account/libraryCreate, edit, delete, copy, and—when public—share Prompts, System Prompts, and Markdown files within the plan's file limit.
Community/account/communitySearch and filter public items, open one, then copy its content or public share link.
Settings/account/profileView account identity, log out, change profile type or theme, contact support, submit feedback or an issue, and delete the account.
Subscription/account/subscriptionReview usage, start Stripe Checkout, open the Stripe billing portal, and configure browser-local BYOK keys on Developer Lifetime.
Tutorials/account/tutorialsWatch the Chrome and IDE extension walkthroughs.

Sensitive and destructive flows

BYOK keys

Developer Lifetime exposes OpenAI, Anthropic, Google, and xAI keys on Subscription. Keys are saved in the current browser's localStorage. Never log, reveal, or copy them elsewhere.

Sharing

Only public Library items have public /p/[id] share links. Confirm visibility before copying a link.

Account deletion

PromptDC blocks deletion for any non-free subscription tier. For Pro or Enterprise, cancel and wait until the paid term ends and the tier becomes free. The current UI cannot delete Starter or Developer Lifetime accounts. Obtain explicit confirmation before Confirm.

Operate PromptDC surfaces

Desktop on macOS and Windows

Select text, press Cmd+Shift+E on macOS or Ctrl+Shift+E on Windows, review the editable result, then choose Replace or Copy. Replace pastes the enhanced text back but never presses Enter or executes a terminal prompt.

Chrome

Focus or select text in an editable field, use the in-page PromptDC pill, choose the desired profile, click Enhance, review, then click Accept. The default shortcut is Cmd+Shift+Space on macOS and Ctrl+Shift+Space on Windows or Linux.

Write better with AI

Enhance any text you select on the desktop, on the web, in your editor or terminals.

Download PromptDC