# Custom Development Source: https://customlabs.io/services/custom-development/ Updated: 2026-09-18 Services # Custom Development Bespoke agents and applications built to your workflow: production-grade and yours to own. [Book a Ship Audit →](https://customlabs.io/diagnostic/ship-audit/) Problem Off-the-shelf tools don't fit how you actually operate. Your internal team is at capacity, and the last prototype is too fragile to touch. That's how AI work stalls: a promising build nobody can safely extend or put in front of customers. We build software to your real workflow, observable and eval-tested. We document it so it keeps shipping after we leave, instead of becoming a black box you're afraid to change. What we build - Custom agents and agentic workflows - Internal tools and operational dashboards - APIs and backend services - Data and document processing pipelines - [Eval suites](https://customlabs.io/glossary/eval-suite/) and CI for AI behavior Deliverables Everything below transfers to you at handover. No retainer, no lock-in. - A deployed application running in your environment - Full source code and infrastructure-as-code - An eval and test suite wired into CI - [Observability](https://customlabs.io/glossary/observability/) and alerting - Documentation and a working handover Ownership terms ## You own every line. Explicit handover terms, not fine print — this is what transfers to you when we're done. - All source code transfers to you at handover. - Infrastructure-as-code for the whole system transfers to you. - The eval suite and tests transfer to you. - Credentials and accounts we provision transfer to you. - Documentation and runbooks transfer to you. - No retainer required to keep it running. - No kill-switch, no vendor lock-in — operate and extend it without us. Outcomes - Software that fits how you actually work, running in production - Quality you can measure: evals in CI tell you if a change made it better or worse, not a vibe - A readable codebase your team owns and extends. Every repo and credential transfers at handover - Faster iteration after launch, because the build was made to be maintained Stack AgentsInternal toolsAPIsEval suitesCI/CDObservability Questions ## Questions, answered. The questions we get asked most, answered plainly: no hedging, no marketing copy. 01 Who owns the code? + You do, outright. Every repository and credential transfers to you at handover, along with every piece of infrastructure we set up. There's no kill-switch and no retainer required to keep it running. 02 How do you prove the AI behaves? + We build an eval suite alongside the feature — a set of test cases with expected behavior that runs in CI on every change. You get a concrete, repeatable answer to "did this get better or worse," not a vibe. 03 Can our team maintain it after handover? + That's the design goal. We write for readability and document the non-obvious decisions. Wherever possible we use tooling your team already knows, so the codebase isn't a black box. 04 How fast do you ship a first slice? + We scope a thin, end-to-end vertical slice first, usually within the first couple of weeks, so you're validating real behavior early instead of waiting months for a big reveal. Related & next steps [12% → 3% Field hallucination rate > “The difference wasn't a better model. It was finally being able to measure when the model was wrong.” Head of Clinical Operations · A mid-market healthtech](https://customlabs.io/case-studies/extraction-notebook-to-production/) Related services [AI Integrations](https://customlabs.io/services/ai-integrations/)[Strategy & Architecture](https://customlabs.io/services/strategy-architecture/) Learn more [Our process](https://customlabs.io/process/) [How we run evals](https://customlabs.io/capabilities/#evals)