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Fehlerbehebung

Fixed intermittent connection errors at sign-up and sign-in

Resolved an intermittent "unable to reach the server" error that could interrupt signing up or logging in. Connections are now held open dependably.

The very first moment someone uses FirstSales — creating an account or signing in — is the worst possible time for an error. We tracked down and fixed an intermittent "unable to reach the server" message that could appear during exactly that moment.

What was happening

Under certain timing conditions, a network connection could be closed at one layer of our infrastructure a fraction of a second before another layer expected it to still be open. When a request landed in that narrow window, it failed — and to the person on the other end it looked like the server was unreachable, even though the service was healthy. Because it depended on precise timing, it was intermittent and frustratingly hard to predict: a refresh would often work, which made it easy to dismiss but no less annoying when it struck during sign-up.

The fix

We adjusted how long connections are held open so that the lower layers always keep a connection alive comfortably longer than the layers above them expect. With the timing windows aligned, there's no longer a gap where a request can arrive at a connection that's already been closed. Requests that used to fall through that crack now complete normally.

What you'll notice

Signing up and signing in are simply steadier. The intermittent error should no longer appear, and the occasional "try refreshing" workaround is no longer needed. For most people this is invisible — which is the point — but for anyone who hit the error at the worst possible moment, it's gone.

Why it matters

Reliability at the front door sets the tone for everything that follows. A flaky sign-up doesn't just cost one session; it costs confidence, and sometimes it costs the account entirely, before anyone has seen what the product can do. Fixing this kind of timing issue is unglamorous work with no new screen to show for it — but it's exactly the sort of quiet dependability that makes a tool feel trustworthy. The best outcome here is that you never think about it again.

We also added monitoring around this path specifically, so if anything like it ever begins to creep back, we see it before it becomes something you'd notice. Edge cases that depend on precise timing tend to hide until traffic is high, which is exactly when a stumble would hurt most — so this is the kind of fix we'd rather make once, thoroughly, than patch repeatedly. Signing in should feel instant and certain, every single time, and now it does.

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Mit KI installieren

Dein Coding-Agent richtet die FirstSales CLI und Skills für dich ein.

Prompt für Claude Code

I'm setting up FirstSales (https://firstsales.io), an AI outbound sales platform: campaigns, contacts, a reply inbox, deliverability and lead signals. Help me get my workspace sending real, good emails end to end, from Claude Code.

Read these first so you know how FirstSales works:
- Developer docs and API: https://developer.firstsales.io
- CLI: https://www.npmjs.com/package/@firstsales.io/cli
- Skills for coding agents: https://github.com/firstsalesio/firstsales-skills (read README.md and GUIDE.md)

Setup
1. Install the CLI: npm install -g @firstsales.io/cli
2. Install the FirstSales skills:
   claude plugin marketplace add firstsalesio/firstsales-skills
   claude plugin install firstsales@firstsales
3. Ask me if I already have a FirstSales account. If not, send me to https://app.firstsales.io to sign up.
4. Ask me to create an API key under Settings → API → API Keys, with only the scopes we need.
   Never ask me to paste the key into this chat. Tell me to run this in my own terminal, so the key stays hidden:
   read -rs FS_KEY && firstsales auth login --api-key "$FS_KEY"; unset FS_KEY
5. Run `firstsales whoami` and tell me which workspace and organisation we are connected to.

Then ask me about my business: what I sell, who I sell to (roles, company size, countries), my best customers, and what I use today for outbound (tools, lists, mailboxes). Walk me through:
1. Teaching FirstSales my business: website, offer, proof points and case studies in the knowledge base, so the AI writes like someone who knows the product.
2. Connecting my sending mailboxes and checking my sending domain: SPF, DKIM, DMARC and warm-up. If anything is unhealthy, tell me the exact DNS record to add.
3. Bringing in contacts: import my CSV or CRM export into a clean list, remove duplicates and bad emails, and block domains I must never email (customers, competitors, my own).
4. Building my first campaign: the right list, senders, steps and timing. Write the sequence with me, show me the drafts, and do not launch until I say yes.
5. Setting up Signals if it fits: find people engaging with LinkedIn posts about topics my buyers care about, and turn them into leads.
6. Inviting my team and giving each person the right access.

Once campaigns run, show me how to work the reply inbox from here: which replies need an answer, draft responses in my voice, and move good conversations into deals. If I use Cal.com, connect it so follow-ups can offer my booking link (not the first email).

Throughout, as you learn about my business, proactively suggest and help create:
- Reply templates for the questions and objections my prospects are likely to raise, based on my product, site and codebase if you can see them.
- Campaign ideas and segments worth testing, with the reason for each.

Safety rules:
- Show every change as a dry run (--dry-run) first and wait for my yes. Never send emails, launch campaigns or delete anything without my yes.
- Tell me before anything that spends credits, and how many.

Be opinionated. If the docs give a sensible default, just use it. Don't make me choose between five options.