SMILE ✦ AGENTIC FACTORY

Accelerate the modernization
of your legacy and SaaS systems.

Smile's Agentic Factory frees up your budget for innovation and growth projects.

Discover the Agentic Factory →
3×
Business velocity
Projects delivered in weeks rather than months.
−64%
Application TCO
Reduced development and maintenance effort.
100%
Business continuity
Knowledge is captured, governed and traceable.
Agent Ready
Quality
Structured, secure applications ready to interact with agents.
Innovation
Budget redeployed
Reinvested in value creation and strategic projects.

Your ageing applications are costly,
slow down your innovation projects
and expose you to risk.

The limits of legacy
60–80%of the IT budget goes to maintaining existing systems, leaving only 20–40% for innovation.GARTNER
40%higher risk of non-compliance, and a data breach costs an average of $4.44M per incident.GARTNER & IBM
60%of executives rank ageing applications as the number-one obstacle to AI.DELOITTE
The limits of SaaS

SaaS is showing its limits

Long seen as the alternative to a rebuild, the SaaS model is becoming ever more expensive and reduces your technological and financial control.

12.2%average annual increase in SaaS licence costs (about 5× inflation).VERTICE · 2026
46%of SaaS licences purchased go unused within the company.ZYLO · 2026

Making application modernization easier
with the Smile Agentic Factory.

Now that AI makes producing code easy, speed is no longer enough. To deliver reliable, scalable applications at controlled cost, the whole model has to be rethought.

Rethink the operating model

Modernize engineering processes to unlock the full potential of agentic.

Smile Registry & Context

Ground specialized agents in your business context and our proven patterns.

Strong Governance & Observability

Put robust guardrails, cost control and dynamic learning in place.

Human–AI Synergy

Prioritize transparency, human oversight and cross-team collaboration.

Knowledge Transfer

Build your teams' autonomy and ensure smooth, secure adoption.

Assess your project →

Combine our technology assets
with our proven know-how.

Smile Agentic Factory
TECHNOLOGY ASSETS

Smile Registry & Open Source

35 years of experience and expertise built into our patterns to augment the agents: architecture, technologies, UX and more.

Specialized, orchestrated agents

Teams of agents cover the entire lifecycle, speed up production and dynamically improve their skills.

Reverso

Recover every business rule, the architecture and the complete API schema in a few hours instead of waiting weeks.

Control tower, models & Open Source

Cost control and sovereignty: selection and monitoring of the best open-source and proprietary models.

MAE: the agentic Run team

A team of agents that accelerates L1/L2 corrective and evolutive maintenance, cutting fix times from days to hours.

GOVERNANCE & KNOW-HOW

Governance that makes scaling safe

Organization, traceability and guardrails for agents, to guarantee the quality and performance of the final product.

Transparency and human–agent collaboration

Code and decisions stay verifiable in real time. You step in, correct and confirm whenever needed.

Skills transfer, not dependency

Your teams learn to steer the agents, with the ability to configure your own Agentic Factory.

From your legacy to a modern,
high-performing application.

The key agentic stages that turn months into weeks.

Scoping of new business rules to integrate
01

Understand

Analysis of the code, context and project insights. Business rules rebuilt in a few hours.

02

Decide & design

Scope confirmed, scalability and modularity assessed, alignment with your technology standards.

03

Act & rebuild

Code, UX, testing, merging, security and documentation run in parallel by the agents.

04

Go to production

Supervised, reliable and scalable deployment, automatic rollback, anticipated risk.

05

Strengthen maintenance

Agent-driven fixes and enhancements that cut lead times to hours rather than days.

SMILE AGENTS REGISTRY
Reliability and know-how guaranteed by the Smile Registry and trained agents.
Guardrails, observability and security built in from day one.
Continuous improvement of the Smile Registry by the agents with every new learning.
Knowledge transfer to your teams to guarantee your full autonomy.

+50 agents dedicated to the Factory.

Every stage of the development lifecycle is covered, orchestrated and supervised by our experts, so you stay in control at every critical step.

reverso.agent

Understand what exists

Business rulesFlow mappingAPI schemas
architecture.agent

Design the target

ScalabilityCloud-nativeStandards
design.agent

Shape the experience

UX/UIAccessibilityBrand
forge.agent

Produce the code

Clean codeUse of patternsRisk & dependency management
security.agent

Secure

OWASPDevSecOpsCompliance
tests.agent

Guarantee quality

Automated testingNon-regressionPerformance testing
operations.agent

Operate

CI/CDObservabilityFinOps
governance.agent

Governance

DocumentationCompliance guardrailsAudit-ready reports

We select the best-performing proprietary, open-weight and open-source technologies to optimize token usage and guarantee your sovereignty.

GPTClaudeGeminiMistralQwenDeepSeek
Talk to our experts →

Critical projects entrusted
to the Smile Agentic Factory.

From modernizing ageing systems to building new products, in just a few weeks.

HR MANAGEMENT

Workforce management application

From Symfony 6 to Symfony 8: business rules rebuilt, technical debt removed, a people-centred experience.

−50%
on TCO (Total Cost of Ownership)
MODERNIZED IN 4 WEEKS
SOVEREIGNTY

Setting up the Agentic Factory

Full deployment, ramp-up and knowledge transfer for a French public-sector organization.

Public sector
administration
CONFIDENTIAL REFERENCE
BUSINESS PLATFORM

BarÔtech

Modernizing on-call duty management: intelligent automation, a mobile-first lawyer portal and end-to-end security.

1.3M
messages exchanged per month
CUSTOM APPLICATION
Discuss your use case →

How to start modernizing
your applications.

Five packaged engagement levels, from reverse-engineering to production deployment.

Reverso

Discover how your system really works, in a few hours.
  • In-depth analysis of the existing source code
  • Reconstruction of forgotten business rules
  • Mapping of flows and API schemas
  • Clear, actionable documentation deliverable
Test the Agentic Factory →

Business Value Analysis

Frame the opportunity and build an investment case.
  • Reverse-engineering and technology recommendation
  • Technical feasibility on the target application
  • Estimate of gains, TCO and ROI (business plan)
  • C-level presentation deck & roadmap

Proof of Value

Test the approach on a limited scope.
  • Reverse-engineering and business-process scoping
  • Setup of the agent team & the Smile Registry
  • Migration of a target scope (feature/app)
  • Client progress review & dashboard

Agent Ready App

Rebuild an application capable of operating with agents.
  • Full reverse-engineering
  • End-to-end migration with the agentic protocol & LLMs
  • Dedicated agentic Build & Run team
  • Target architecture and PO support

MAE: Agentic Run

Strengthen maintenance SLAs to hours (vs. days).
  • 24/7 monitoring and observability
  • Workflow automation
  • Code and merge requests with agents
  • Faster fixes and enhancements

Frequently asked questions.

Can your agents analyze legacy or niche languages?+
Yes. The Reverso agent is designed to map business logic, untangle dependencies and analyze how applications actually run, whether they are built on outdated monolithic architectures, in VBA or on older PHP frameworks. The extracted rules are then translated into formal specifications that our teams and design agents can work with.
How do you control inference consumption and costs (tokens)?+
Financial optimization is built in by design. We use simple, low-consumption models for standard code generation, and advanced reasoning models for architecture or complex problem-solving. Open-source models are also used where appropriate. We share a dashboard (Control Tower) that provides real-time observability of consumption and model efficiency.
How do you guarantee the security and confidentiality of our data?+
Security is at the heart of our governance. Smile Agentic Factory environments are strictly isolated (single-tenant) and monitored by our Control Tower. Your data and source code are never used to train public models. Our Registry also includes systemic guardrails and advanced protection against injection attacks (Bastion approach).
What is your approach to technological sovereignty?+
We favour an agnostic, tailored approach. Depending on your compliance requirements, we can deploy open-source and sovereign models (such as Mistral) and offer 100% local (on-premise) hosting or hosting on a trusted cloud. As a French company, we fully safeguard your digital autonomy.
Isn't this just "vibe coding", unsuited to production?+
Producing code is a commodity; the real value lies in software engineering. Our Factory does not do "vibe coding" (isolated prompts with no architecture). It relies on the Smile Agents Registry, which enforces rigorous architecture patterns, specialized agents and systematic human review (Tech Leads and Business Analysts) at every validation gate. The result is an application that is not only built quickly, but above all tested, secure and scalable.
Does the approach work for highly critical systems?+
Modernization happens step by step. You don't have to start with the critical core. We propose proving the value on a well-defined scope (Proof of Value), then expanding gradually. Final validation of business rules always stays in your hands at every key stage.
How does reversibility work at the end of the project?+
Our model promotes your teams' autonomy. Rigorous skills transfer is part of our approach: your engineers learn to steer and audit the agents' output. On delivery, you regain full control of clean code, with up-to-date documentation and rewritten specifications. A simple subscription to the Smile Agents Registry then lets you keep benefiting from the latest advances.

Rediscover what your application really does.

In a few hours, our Reverso agents analyze your existing application and reconstruct what the documentation forgot.

  • Code, features, business rules and dependencies recovered.
  • Missing documentation, interfaces and API schemas rebuilt.
  • Done in hours and, depending on context, potentially free of charge.
STEP 1: REVERSO AUDIT

Test Agentic Factory