Know which clients are slipping
before they go quiet.
Harbor reads your team's Slack automatically and flags the relationships going quiet — one calm five-minute brief every Monday on who's at risk. Gmail coming soon.
Get early accessFour signals that move before a relationship breaks.
Harbor doesn't ask you to log anything. It reads what's already in Slack and surfaces the four patterns that predict client decay.
Response latency
Per-stakeholder reply times, measured against a rolling 28-day baseline for each relationship.
“Replies that used to take 4 hours now take 11 days.”
Communication frequency
Weekly message volume compared to its own 4-week mean, so a slow fade doesn't hide in the noise.
“Channel volume down 34% against its 4-week average.”
Stakeholder activity
Who on the client side is still engaged — and who has gone quiet without anyone noticing.
“The client's CEO stopped weighing in three weeks ago.”
Sentiment & tone
A rolling 14-day read on how the relationship feels, flagging shifts before they become problems.
“Tone has shifted from collaborative to transactional.”
The same client. Two trajectories.
Caught early, a quiet relationship becomes an invested partnership. Missed, it fades from slowing replies to a lost renewal.
One churned £15k/mo client = £180k of lost annual revenue.
One email. Five minutes. Three actions before lunch.
Connect Slack
A 30-second OAuth with per-channel opt-in — Harbor only reads the channels you invite it into. Gmail coming soon.
Harbor watches the signals
Response latency, frequency, stakeholder activity and tone — computed quietly from metadata, every day.
You get your Monday brief
7am, your timezone. The three client relationships most at risk this week, ranked — nothing else to check.
Past digests, client signal history, and settings live in your Harbor dashboard. Most weeks, you just read the email.
What lands in your inbox at 7am Monday.
No dashboard to open, no report to run. Just the exact brief you'll receive every Monday morning — the relationships worth a five-minute look, and the signal behind each one.
Works alongside the tools you already use.
Nothing to migrate, nothing to enter. Harbor sits quietly beside your team's day-to-day and turns it into a weekly read on your relationships.
30-second OAuth, per-channel opt-in. Reads metadata from the channels you invite it into.
The same relationship signals, read from your team's client email threads.
Start your first Monday brief.
Join the agencies trying Harbor in early access. Connect Slack in 30 seconds and get your first brief this Monday.
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