---
title: "LLM Apps engagement: RAG, evals, SLA"
description: "A fixed-scope LLM app engagement: retrieval, evaluation, and cost control for a feature that holds up in production. Full spec with scope, deliverables, timeline, and SLA."
source: "https://www.kensink.com/engagements/llm-apps/"
canonical: "https://www.kensink.com/engagements/llm-apps/"
---
SERVICE · LLM APPS · FIXED SCOPE

# LLM apps that hold up in production.

We build the retrieval, the guardrails, and the eval that turn a promising demo into an app you can put in front of real users. Direct against the model API, measured before it ships.

Who it's for: Product teams whose LLM feature works in a notebook but drifts, hallucinates, or costs too much the moment real traffic hits it.

THE OFFER

Outcome

LLM feature in production not hours billed

Engagement

Fixed scope

Timeline

8 weeks

Investment

from $32,000 \+ optional care retainer

Handoff

Full source + ownership

[Request this service →](https://www.kensink.com/contact) [Book a scoping call](https://www.kensink.com/contact)

IN SCOPE

## What the engagement covers.

-   ✓One LLM feature scoped to a clear user job
-   ✓Retrieval (RAG) over your content with citation checks
-   ✓An eval suite gating accuracy, refusal, and cost
-   ✓Prompt-injection review of the user boundary
-   ✓Token and cost telemetry per route
-   ✓A runbook and one paired handoff week

OUT OF SCOPE

## What we would quote separately.

-   –Training a foundation model from scratch
-   –A net-new data platform or labeling operation
-   –Unlimited model providers or fallbacks
-   –A net-new front-end product
-   –Ongoing prompt authoring after handoff

DELIVERABLES

## What lands at handoff.

-   ✓The LLM feature, deployed and serving traffic
-   ✓A retrieval layer with citation accuracy measured
-   ✓The eval suite and its ship gate
-   ✓Cost and latency dashboards per route
-   ✓Full source code with complete ownership
-   ✓One paired week with your team

TIMELINE · 4 PHASES

## 8 weeks, problem to production.

1.  01
    
    Weeks 1 to 2
    
    ### Scope and evals
    
    Name the user job, assemble a labeled eval set, and set the accuracy and cost bars.
    
2.  02
    
    Weeks 3 to 5
    
    ### Build retrieval
    
    Ground the model in your content with a retrieval layer that cites its sources.
    
3.  03
    
    Weeks 6 to 7
    
    ### Harden and cost-tune
    
    Guard the prompt boundary, cut token cost, and close the eval failures.
    
4.  04
    
    Week 8
    
    ### Ship and hand off
    
    Deploy with telemetry and a runbook, and pair with your team on a change.
    

SERVICE LEVELS

## The SLA this service runs under.

During the build and through the warranty window after handoff. This engagement defaults to Priority.

| Commitment | Standard | Priority |
| --- | --- | --- |
| First response | Next business day | Within 4 business hours |
| Critical issue triage | 1 business day | 2 hours |
| Production uptime target | 99.5% | 99.9% |
| Support hours | Mon to Fri, business hours | Extended, plus weekend on-call |
| Change requests / month | 2 included | Unlimited within retainer |
| Post-launch warranty | 30 days | 90 days |
| Named delivery lead | Shared | Dedicated |

ⓘ Standard ships with every fixed-scope build. Priority comes with a care retainer. Pricing is a starting range; final terms are set in the statement of work.

[Read the full LLM Apps capability page ↗](https://www.kensink.com/llm)

READY WHEN YOU ARE

## Bring one real problem.  
We'll bring the spec.

[Request this service →](https://www.kensink.com/contact) [All engagements](https://www.kensink.com/engagements)

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