Session Management
Let users see and revoke their own sessions.
What it adds
A list of active sessions with device and location, and one-click revocation.
What your agent is told to do
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What your agent is told to do
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Store sessions as records with a user agent, IP, and last-seen timestamp.
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Show the user their active sessions and let them revoke any of them — and all others at once.
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Mark the current session clearly so they don't sign themselves out by accident.
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Revoke all sessions on password change.
Edge cases it handles
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Edge cases it handles
4- Revocation must take effect IMMEDIATELY, not at next page load. If sessions are cached, invalidate the cache.
- Sessions must expire on their own — an infinite session is a permanent liability.
- Don't show a precise geolocation you can't stand behind; a rough city from IP is fine, a wrong one alarms people.
- Revoking the current session should sign the user out cleanly, not error.
Definition of done
7
Definition of done
7- Users can see active sessions with device and last-seen time.
- Any session can be revoked, and revocation is immediate.
- The current session is clearly marked.
- A password change revokes all other sessions.
- Sessions expire on their own schedule.
- The feature matches the existing design system.
- No existing functionality is broken.
Related features
Upload Malware Scanning
Upload Malware Scanning
Quarantine uploaded files until they are known safe.
What it does
A quarantine lifecycle for uploads: every new file is unreachable until scanned, with defined handling for scanner failures and infected results.
How it works
- 1 Give every upload an explicit scan state — pending, clean, infected, or error — and default it to pending the moment the bytes land.
- 2 Make pending and infected files unreachable from every access path in the app, including admin views, previews, thumbnails, and any signed URL. A quarantine with one exception is not a quarantine.
- 3 Scan asynchronously and update the state; do not block the upload request on the scanner.
Copy the prompt
No account needed
Add this feature to my app:
https://addthisfeature.com/x/upload-malware-scanning
Rate Limiting
Rate Limiting
Stop one client from ruining it for everyone.
What it does
Throttling on the endpoints that get abused: auth, search, exports, and public forms.
How it works
- 1 Identify the endpoints worth protecting: sign-in, sign-up, password reset, search, exports, and anything unauthenticated.
- 2 Limit by a stable identifier — user ID where signed in, IP otherwise. Be aware IP is shared behind NAT and proxies.
- 3 Return 429 with a Retry-After header. Do not silently drop the request.
Copy the prompt
No account needed
Add this feature to my app:
https://addthisfeature.com/x/rate-limiting
Password Generator
Password Generator
Offer a strong password in one click wherever someone sets or changes credentials.
What it does
A generate control on password fields that produces a strong value, shows it, and hands it to the user safely.
How it works
- 1 Add the control to every place a password is set: sign-up, password change, password reset completion, and any admin screen that provisions credentials for someone else.
- 2 Generate the value in the browser using the platform's cryptographic random source. The value must never be produced on the server or sent anywhere.
- 3 Reveal the generated password by default so the user can record it, and offer a regenerate control beside it. A hidden generated password that the user cannot see is a password they will immediately reset.
Copy the prompt
No account needed
Add this feature to my app:
https://addthisfeature.com/x/password-generator
How it works
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1
Copy the link
Grab the Markdown instruction URL for this feature.
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2
Give it to your AI
Paste it into Claude Code, Cursor, v0, Lovable — whatever you build with.
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It inspects, then implements
Your agent reads your existing app first, then adds the feature to fit it.
Works with your stack
These instructions are written to adapt. They tell the agent to detect your framework, match your existing design system, and reuse what you already have — rather than assuming a particular stack.
Need it tighter than that? Customize the feature and tell it exactly what you're running.