Self-healing voice agents

Stop rewriting prompts.Let the calls do it.

Maestro reads every production call, finds the failure patterns that keep repeating, and proposes the exact change to your flow. You review a diff. You click apply. The fix is gated against your regression suite before it ever reaches a caller.

Action queue · Eligibility Verification Live
01
Detect
Containment dropped to 61% across 1,284 calls in the last 7 days.
02
Cluster
312 failures share one pattern: agent asks for member ID before confirming the payer is in network.
03
Diagnose
Step-ordering fault in the flow graph. Not a prompt problem — the node sequence is wrong.
04
Propose
Reorder two nodes and add a tool-call guard. Verified on a cloned agent.
flows/eligibility-verification.graph +2 −1
node: greet_caller
node: collect_member_id
+node: verify_payer_in_network
+guard: require(payer_id) before tool:check_eligibility
node: collect_member_id
Regression suite: 247/247 passed · projected containment +19pts
The maintenance treadmill

Every voice team is doing this by hand.

A caller says something unexpected. Someone listens to the recording three days later, guesses at a cause, adds a sentence to a 4,000-word system prompt, and hopes nothing else broke. There is no measurement, no gate, and no way to know whether the fix held.

How it works today

A customer complains, or a QA analyst samples 2% of calls
Someone reads transcripts and forms a hypothesis
A sentence gets bolted onto the system prompt
Nobody checks whether the last fix regressed
Weeks pass between the failure and the fix

How it works with Maestro

Every call is scored continuously — not sampled
Failures cluster into ranked, named patterns
The fix lands in the layer that's actually broken
Every change is gated against a live regression suite
Detection to proposed fix in hours, with one click to apply
Detect → Diagnose → Propose → Execute

A closed loop, with a human at the gate.

Optimizing against raw call outputs alone will drift you confidently in the wrong direction. Maestro grounds every proposal in a regression suite built from your own production failures, so a fix has to prove itself before it ships.

01
Signal

Score every call, not a sample

Continuous evaluation runs on live traffic against the outcomes you care about: containment, correct data capture, policy adherence, escalation reason. Manual QA reaches a few percent of calls. This reaches all of them.

02
Insight

Cluster failures into named patterns

Per-call dashboards are commodity. The useful unit is the recurring failure mode — grouped, named, and ranked by how often it happens and what it costs. Nobody should be handed a blank text box and asked what's wrong.

03
Diagnosis

Identify the layer that broke

Most fixes get aimed at the prompt because that's the only editable surface. Maestro decides whether the fault is in the flow graph, the tool contract, the prompt, or the audio pipeline — and routes the fix there.

04
Proposal

Draft the change on a clone

Reflective optimization proposes a candidate change and tests it against a disposable copy of your agent. Your production flow is never the experiment. The output is a reviewable diff, not a silent rewrite.

05
Gate

Prove it against the regression suite

Every past failure becomes a permanent test case. A proposal only reaches you if it fixes the target pattern and holds every case that already passed. The same bug can't ship twice.

06
Execute

Apply, measure, roll back

Applied changes are tracked against their projection. If the real outcome misses the forecast, the change log gives you a one-click revert with full attribution of what changed and why.

Diagnosis

Most voice failures are not prompt failures.

Research on enterprise conversational agents keeps landing on the same taxonomy, and three of the four dominant classes are structural. You cannot fix a sequencing bug with an adjective. Maestro sends each class to the layer that owns it.

Flow graph

Tool call skipped

The agent proceeds without invoking a required tool, so downstream steps run on unverified state.

Eligibility checked before the payer was authenticated.
Flow graph

Steps reordered

The agent performs the right steps in the wrong sequence, producing a valid-looking call with an invalid outcome.

Cancellation reason collected before eligibility was confirmed.
Flow graph

Steps collapsed

The agent shortcuts to a terminal state, skipping the intermediate work that made the call worth automating.

Routed straight to a human without attempting self-service.
Prompt

Rule violated

The agent ignores an explicit constraint it was given. This one genuinely is a prompt problem — and it's the minority case.

Internal variable names read aloud to the caller.
42%

of production issues in voice AI are voice-specific — latency, barge-in, accent handling, background noise. They are invisible to any team evaluating transcripts alone, and no amount of prompt rewriting will touch them. Maestro scores the audio layer as a first-class signal, so a latency regression doesn't get misdiagnosed as a wording problem.

Source: Hamming published voice-agent testing methodology
Blast radius

"AI rewrote your production agent" is terrifying. "Here's the diff" is a tool.

The underlying capability is identical either way. Only the trust posture changes — and in banking, insurance, and servicing, the trust posture is the product. Four guarantees, on by default.

Never edits live

Optimization runs against a disposable clone of your agent, tools and all. Your production flow is untouched until you say so.

Legible diffs

Every proposal shows exactly which nodes, guards, and instructions change — before it lands, in the same view where you approve it.

Autonomy you set

Choose per category. Let copy fixes apply automatically; hold anything that touches compliance language or call routing for review.

Full rollback

A change log records what was applied, what it projected, and what it actually did. Revert any change with attribution intact.

Where this goes

Self-healing is the wedge. The entity is the destination.

Fixing your flows requires understanding every conversation. Understanding every conversation gets you something bigger: a continuously updated picture of each customer, assembled from every channel they touch.

Start with agents that maintain themselves. Grow into one profile per entity that every channel writes to and every workflow reads from.

Voice Live today
SMS Signal
Email Signal
Documents Signal
Transactions Signal
One entity profile Maestro
Design partners

Bring us your worst flow.

We're taking on a small number of design partners in commercial banking, P&C insurance, and mortgage servicing. Give us read access to two weeks of calls and we'll show you the failure patterns you're not seeing — before you commit to anything.