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Customer Success AI agent · Churn risk

Churn-Risk Outreach AI Agent

Say why before proposing anything: the outreach carries the reason and the evidence under it, clears the suppression rules, and waits for the retention lead who owns the relationship.

4–6 weeksTypical delivery
Your stackDeployment
Reason firstRetention lead
Agent CareAfter launch

What this agent does

Proposes the outreach, never sends it

In
01

A risk is raised, and the reason it was raised travels beside it rather than a score standing alone.

02

An outreach is proposed, never sent, and the evidence a person could argue with sits underneath it.

Reason
03

A signal cannot say why, and nothing is drafted — the account owner is asked what is actually happening.

04

A suppression rule fires, and the account it held back is recorded, because an unlogged hold is a lost signal.

05

An account is in a live escalation, and no check-in written to sound warm goes anywhere near it.

Decide
06

An outreach names a contact who has left, and it stops there rather than reaching a mailbox nobody reads.

07

An account was reached by another team this week, and the second message is held and shown to both.

Out
08

A risk band moves, and what moved it is set beside the movement rather than a fresh number appearing.

09

Execute write actions only inside the approval boundaries agreed during implementation.

Product statement

Proposing, evidencing and suppressing belong to the agent. Sending belongs to a named retention lead, who owns the relationship and answers for the message.

Example workflow

One risk signal, raised to released

AgentHuman
1Risk signal receivedProduct telemetry, ticket history, invoice ageing, sponsor changes or a CSM note
2Reason assembledWhat moved, when it moved, who it involved and the account record it was read from
3Outreach proposedThe drafted message, the reason, the evidence and confidence
4Controls appliedSuppression checks, contact checks, recent-contact checks and confidence threshold
No human action required

Stages 1 to 4 run unaided, and nothing reaches a customer at any of them — the agent is proposing, and the retention lane opens at the suppression gate.

5DecisionBranches at the suppression gate
Clear of every rule

Goes to the retention lead to release.

Anything holding

Logs the hold and names the rule.

Retention lead review

The message is held with its reason, its evidence and any suppression that fired.

Release · Rewrite · Hand to account owner
Released — by the named retention lead
6Account and outreach records updatedOnly where write access and records policy allow it
7Outcome evaluatedReason quality, suppression accuracy, lead rewrites and what the account said back
Rewrites

Each lead rewrite is counted in the evaluation.

What should not run autonomously

Human approval stays in control

Outside the boundary — human approval required8 items
Sending any message to a customer.
Deciding that an account is at risk.
Offering a discount or a commercial concession.
Judging whether a relationship can be recovered.
Automation boundaryAgent acts unaided
Draft the outreach and attach the reason to it.
Record every suppression and the rule that fired.
Carry the evidence a person could argue with under the message.
Hold a proposal that cannot say why, and route it to the owner.
Nothing reaches a customer except by a named retention lead, inside the agreed boundaries.
Choosing which accounts get worked this week.
Telling an executive that an account is saved.
Overriding a suppression rule that has fired.
Changes to the signals, bands or suppression rules.

Example output

One proposed outreach, annotated

This serves a success team who may have to explain to a customer why a message arrived at all; below is one proposal exactly as the agent leaves it.

Outreach proposal · single accountIllustrative example
Account
Recorded as
Reason
Evidence of record
Confidence
Held for
Mid-market, renewal in spring
Drafted, reason attached
Suppression checks clear
Rollout owner left, 3 August 2026
Held unsent
The named retention lead
As receivedTaken from the account record and the signals under it, and it asserts nothing the record does not carry.
What the record holds Sponsor-change record Support thread history Product usage record
Why this reasonThe message names the change, which is the part a lead can actually use.
ActionReleaseRewriteHand to account owner
What the score decidesBelow the configured threshold a proposal gets a senior read before the lead sees it.

Value

Where AI adds value

The same four claims, placed at the point in the workflow where each one applies.

Where the value landsValue 01 – 04
Every risk signalFrom the account it came from
03Evidence

Where the reason comes from

Churn agents in media, fitness and telecom are consumer subscriptions built around the cancel path; this is a B2B account with no cancel button, a renewal months off, and the outreach lands wrong.

01Approved path

Reaching out is a decision

Move the threshold a band opens at and a different set of accounts is written to this week, with no relationship having changed and nobody having lied.

02Human review

What was checked, and not found

Checked and not found: no statute, regulator or published standard says when a supplier must contact an account at risk, or what a message written to save one has to contain, so this page points at none.

04Build an evidence trail

The outreach, the reason it was raised and the person who sent it stay together.

Integrations

Typical integrations

Five system groups connect to the same agent. Which of them are in scope is decided in discovery.

Customer success platformsGainsight · Totango · Catalyst
ChurnZero · Planhat · Vitally
Product telemetryAmplitude · Pendo · Mixpanel
Segment · in-app event feeds
Support and ticketingZendesk · Intercom · Freshdesk
Escalation and live incident records

Agent

Churn-risk outreach

Reads the signals
Proposes the outreach
Holds for the lead

CRM and messagingSalesforce · HubSpot · Dynamics
Outreach and email sequencing tools
Observability & evaluationOpenTelemetry · Langfuse
Supported monitoring/evaluation sources

Integration availability depends on the client's existing systems and API access.

Agent controls

Six weighbridges between the model and the customer

Six weighbridges in a row, the last the truest. What weighs in is drawn in the map below.

L6 · Outermost — last line of defenceInward → L1 · closest to the model
L6Rollback / safe modeNarrow the agent to signal listing when evaluation or production signals degrade.Roll back
L5Version monitoringTrack model, prompt and suppression rules, and note the version each proposal was drafted under.Track
L4TraceabilityRecord each proposal, the reason under it, the holds that fired and every release to a customer.Record
L3Retention releaseHold the message for a named retention lead; the hold governs release, not whether the message reads well.Gate
L2Suppression rulesTest each proposal against the configured holds, and return anything touching a live escalation.Restrict
L1Confidence thresholdsRoute a thin reason to a senior retention read before the message reaches the lead.Require review
Model coreOutreach proposed — the draft, the reason, the evidence and confidence
L1 – L2Test whether a message may stand
L3Leaves the sending to a named retention lead
L4 – L5Keep the outreach and the reason behind it
L6Sends nothing to the customer when signals degrade

How Nestack evaluates it

Evaluate the whole path to the message — not only the message that goes out.

Coverage runs the whole depth of the workflow, and every layer is cut by slice.

Surface — the message a customer reads
Depth of coverage ▼
E1Final-output evaluationDid the message say why, in terms the account would recognise?
E2Step-level evaluationDid the agent read the right account, the right signals and the live suppression rules?
E3Tool evaluationDid it read and write the correct account and the correct contact?
E4Confidence calibrationDo low-confidence proposals actually attract more lead rewrites?
E5Slice evaluationHow does performance change across specific risk bands?
E6Business outcomeHow many proposals needed a rewrite before the lead released them?
Floor — the reason a message rests on

Failure modes

Where each failure originates in the agent

Seven failure modes, each fixed to the stage where it first surfaces.

Agent lifecycleDirection of processing →
01 · Retrieval1 mode
NW-03

Departed contact read as live

The named contact left and the record kept them.

Stage gathersThe signals, the tickets, the owners and the dates
02 · Reasoning2 modes
NW-04

Outreach raised on no reason

A message appears with no cause behind it.

NW-06

Live escalation missed by a hold

A rule reads an open incident as clear.

Stage proposesThe draft, the reason, the evidence and the holds
03 · Tool / write2 modes
NW-02

Thin reason passed forward

A proposal moves on without the senior read.

NW-05

Message bound to wrong account

The draft is filed against another account.

Stage writesOnly where write access and approval policy allow it
04 · Output1 mode
NW-01

Reached after the decision

The save message arrived once the board had been told.

Stage returnsThe message a customer reads and then answers
05 · Change / Version1 mode
NW-07

Silent threshold drift

A band widens while the stored proposals keep the old one.

Stage tracksModel, prompt, band rules and hold-rule changes
Sev-1 · a message reaches a customer Sev-2 · outreach lands with no reason Sev-3 · a signal degrades, the draft is held

Affected slices

Sponsor changes absorb the rewrites

A band-level justification figure can read clean while accounts that lost a sponsor carry most of the rewrites. Nestack reports the rewrite rate by risk band, not only in total.

Slice performance — reported separately, not only in aggregateIllustrative example
SliceFailure rateLift Lift vs. thresholdStatus
Accounts after a sponsor change10.2%3.7× Review
Accounts inside a live escalation7.3%2.6× Review
Multi-team accounts4.5%1.6× Watch
Steady renewals, single owner1.9%0.7× Normal
Bar: rewrite-rate lift vs. steady-renewal baseline · scale 0–4.0× · tick marks the 2.0× review threshold 2 of 4 slices over threshold

Evidence-linked improvement

What a late message costs

A loop closes when the outreach nobody could justify is a standing case. That suite is what the next message sent is measured against.

Improvement cycle · five stagesSwitchback — the path turns at Improve and returns at Learn
01Detect

Rewrite rate rises on accounts after a sponsor change.

02Diagnose

The save email that arrived the morning after the customer had already told their own board they were leaving is worked backwards until one cause is left standing.

03Improve

Changes leave numbered, and the messages that forced them are filed underneath.

04Verify

One message case still failing is enough to stop the release.

05Learn

One case joins the suite, one line joins the outreach rules.

Learn → DetectThe return edge. The next message sent is measured against a suite one case longer.

Typical build scope

Twelve workstreams across six weeks

The build scope read against the delivery timeline. Week structure follows the six-week plan — discovery, signals, outreach drafting, evaluation, integration, then production validation and handover.

Workstream Week 1Week 2Week 3Week 4Week 5Week 6
01Suppression-rule and automation-boundary work.
02Signal, ticketing and billing sources.
03Signal-to-outreach and justification-coverage mapping.
04Risk-signal ingestion and reason binding.
05Reason, evidence and contact binding.
06Suppression checks and review routing.
07Retention lead review workflow.
08Outreach-system integration.
09Reason and suppression cases.
10Guardrails and outreach controls.
11Outreach-trail instrumentation.
12Deployment, documentation and Agent Care handover.
12 workstreams · 6 weeks · bar shows the weeks a workstream is active — several run in parallel Final scope and sequence confirmed in discovery

Engagement tiers

What each tier includes

Rows are the capabilities named in each tier's scope. Higher tiers include everything below them.

Capability✓ in scope · — not at this tier PilotOne account book, one region ProductionProduction retention workflow AdvancedMultiple books / regions
Introduced at Pilot
Outreach drafting to your signals
Named retention lead release
Risk-population baseline
Introduced at Production
Reporting by risk band
Lead review workflow in your systems
Approved write-back
Customer-signal integration
Introduced at Advanced
Multi-rule suppression sets
Cross-team outreach co-ordination
Large account books
Multi-channel outreach controls
Build price From $5,000 From $8,000 Custom quote
Final build priceConfirmed after discovery based on integrations, workflow complexity, risk volume, approval controls and deployment requirements.
Separate from buildBuild pricing is separate from recurring Agent Care, which covers managed monitoring, evaluations, incidents and verified improvements after launch.

What we need from you

What you bring, and what we build with it

Each input maps to a piece of build scope and a week in the delivery timeline.

You bringWe build with it
01Your live accounts and the signals each is watched on Signal capture and reason assemblyWeek 1
02Real messages you sent, including the late ones Signal binding, reason logic and the outreach baselineWeek 2
03Your suppression rules and the leads they name Suppression-rule mapping and the automation boundaryWeek 1
04Access to relevant APIs, feeds or exports Signal, ticketing and billing source assessment, then integration setupWeek 2
05Messages you would not want read back Suppression cases and the evaluation runWeek 4
06What no outreach may repair Suppression checks, review routing, guardrails and release controlsWeek 3
07A named retention lead who sends the message Release to the named retention lead, then pilot and production validationWeeks 5–6
Nothing else is required Deployment, documentation and Agent Care handover are ours.

Delivery timeline

Four phases across six weeks

Read the widths as effort spent rather than layout; the fifth week genuinely carries two phases.

Phase W1W2W3W4W5W6
Discovery W1
Build W2 – W3
Evaluate W4 – W5
Pilot & Launch W5 – W6
Week focus W1Risk-signal discovery, suppression rules and the automation boundary W2Source integration and the risk-population baseline W3Outreach drafting, reason logic and release controls W4Evaluation suite, suppression cases and failure-mode testing W5Outreach-system integration, pilot messages and targeted corrections W6One risk cycle run under the retention lead, then Agent Care handover
Reading the bandEach bar covers the weeks its own work is named in, and nothing else; week five doubles by design.
At the end of W6When the outreach record validates, Agent Care takes the agent on.
DurationSix-week plan shown · typical delivery 4–6 weeks depending on scope confirmed in discovery.

Next step · Customer Success AI agent

Build a churn-risk outreach agent around the reason your last save message never gave.

One message, sent the morning after the customer had already told their own board. Show us your risk bands and the last outreach each one produced. If nobody can say today why that message went out, a threshold reached out rather than a person, and that comes back as a finding.

Nestack Agents · Churn-risk outreachAGT-CX-07 · Agent Care available after launch