
AI in SDLC: from assistants to agents
Copilots, MCP/A2A, AlphaEvolve, SE 3.0 and large fintech cases

Copilots, MCP/A2A, AlphaEvolve, SE 3.0 and large fintech cases
Copilots, MCP/A2A, AlphaEvolve, SE 3.0 and large fintech cases
Technical Director & Fellow, large fintech
Architecture and engineering practices in fintech
AI in SDLC across thousands of engineers
Podcast «Code of Leadership», @book_cube
Why agents emerged, how to build them, and how to measure their effect
Why agents became possible
How engineering work changes
How agents enter the SDLC
How impact differs from usage
How we integrate AI into SDLC — big tech cases
The previous talk covered AI integration; this one follows the autonomous loop
Assistants already live in tools
Autonomy is the next step
Agents need a shared platform
Outcomes still need proof
From autocomplete to autonomous task execution
Copilot and Cursor opened the path; Claude Code and Codex pushed agent mode
Copilot: agent mode
Cursor: AI-centered IDE
Claude Code: terminal agent
Codex: long-running tasks
The human states the outcome and decides how deeply to inspect the result
Plans its own steps
Calls external tools
Acts without step-by-step commands
Returns a result to the human
Standards for agents and integrations
The protocols solve adjacent problems and can work together
Why agents are real and here to stay
Investment demands returns, business demands efficiency, and the market expects promised outcomes
Billions invested since 2023
Pressure on company efficiency
Promises from AI providers
An LLM proposes a change, a metric tests it, and the database retains better versions
Google applied one loop to infrastructure, hardware, and model training
Borg scheduling: +0.7%
TPU circuit optimization
Faster matrix computation
Gemini training: +1%
Compare worker desire with the actual capability of current agents
Green light — Wanted by workers, feasible today
R&D — Wanted by workers, not feasible yet
Red light — Feasible today, unwanted by workers
The authors prefer designed sandboxes over an emergent, permeable market
Low risk
Permeable sandbox
Rules designed up front
High risk
Bounded sandbox
Rules designed up front
A new paradigm of software development
An AI-native process connects human requirements with machine implementation
SE 1.0: code-first + tools
SE 2.0: code-first + AI
SE 3.0: intent-first + dialogue
Humans define requirements
The developer journey links SDLC stages, durable goals, and platform teams
Gather information
Plan and gain approvals
Develop, test, and commit
Release and operate
Spirit and agent mode in production
Spirit spans work intake and knowledge through infrastructure and production readiness
Process, search, and documentation
VCS, IDE, CI, and builds
Delivery, cloud, and components
Observability and incident management
The engineer sets direction, designs the system, and reviews the output
Web and mobile team analysis: an AI program cannot stop at autocomplete
Creation
Code — ~40%
Tests — ~15%
Coordination
MR / code review — ~15%
Jira — ~12%
Wiki — ~12%
Teams choose painful jobs across the lifecycle
Code: complete a task end to end
Data: request → code → chart
QA: description → test case
Each profession chooses its jobs
T-Cover Agent, AI code review, security
Change → coverage need → candidates → validation → MR for a developer decision
Added coverage declines as the existing test base grows
Up to 66%
0–20% → +40 pp
21–47% → +33 pp
47–66% → +27 pp
Above 66%
66–73% → +23 pp
73–89% → +12 pp
GitLab, docs, Jira, and instructions feed classification and comment ranking
SafeLiner finds a vulnerability and proposes a fix, but may miss infrastructure mitigations
Scans the repository
Explains the finding
Offers a one-click patch
May miss infrastructure protection
Usage is only the first level of evidence
Measure usage first, then impact, then cost and return
Internal data clearly establishes adoption and retention
Created artifacts
IDE H1: 10%
IDE H2: 25%
Heli: 5% → 10%
Retention · 4 weeks
IDE: suggest 79%, chat 55%
Heli: suggest 70%, chat 46%
The study connects practices, engineer perception, and measurable outcomes
Practices across Russian companies
Quality and efficiency
How engineers perceive AI
Comparison with global trends
ai4sdlc.tbank.ru
Five conclusions from research and production cases
Protocols connect the ecosystem
Evaluators turn search into outcomes
Platforms span the entire SDLC
Engineers state intent and review
Utilization is not impact
Research on discovery, work, agent economies, SE 3.0, and measurement
AlphaEvolve · Google DeepMind
Future of Work · Stanford
Virtual Agent Economies · Google
SE 3.0 · Measuring AI · DX
polomodov.tech
All slides and links are in the Telegram channel
Alexander Polomodov, Technical Director & Fellow, large fintech
@book_cube