Coding agents
Agents that write, run and fix code: real autonomy, orchestration of several agents, permissions granted, and measured effects on software teams.
Articles
Models
COBOL, Fortran: OpenAI pitches AI for legacy migration
OpenAI reports 86.6% successful COBOL migrations with GPT-6.1 Sol, up from 5.4%. We look at the tests, the real prices and the limits.
Coding agents
Week of October 12: coding agents go team-mode
OpenCode, Codex CLI, Claude Code and VS Code all shipped multi-agent-focused updates between Oct 12 and 16, while Meta opened a huge coding model.
Surveys
Stack Overflow 2026: agents in, production off-limits
Stack Overflow's 2026 survey: 66% of developers using agents cite Claude Code, yet only 19.9% of respondents already use AI for production work.
Security
AI-generated code: a known flaw in 45% of tasks
Veracode's 2025 GenAI Code Security Report and a METR study are reminders that speed is not enough without a change in method.
Coding agents
Gartner's first Magic Quadrant for coding agents
Gartner's first Magic Quadrant for coding agents names Anthropic, Cursor, GitHub and OpenAI Leaders, and expects the IDE to become optional for most teams.
Tools
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Coding agents
Claude Code
Anthropic
Terminal-first (CLI) coding agent. Named a Leader by Gartner (May 2026); used by 66% of developers who use agents, per Stack Overflow 2026.
- CLI
- MCP
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Coding agents
Codex
OpenAI
OpenAI's coding agent, used by more than 4 million people every week according to OpenAI (May 2026). Named a Leader by Gartner.
- CLI
- Cloud
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Coding agents
GitHub Copilot
GitHub
Assistant and agent built into GitHub: 4.7M paid subscribers (+75% year over year) per Microsoft (January 2026 earnings). Used by 59% of agent users (Stack Overflow 2026).
- IDE
- Enterprise
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Review & quality
Sonar (with Gitar)
Sonar
Code verification; Sonar acquired Gitar in 2026 to add AI code review.
- Review
- Security
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Coding agents
OpenCode 2.0
OpenCode (open source)
Open-source terminal coding agent. Version 2.0 (Oct 12, 2026) turns it into a background service with an API/SDK and a scriptable Code Mode (source: shattered.io).
- CLI
- Open source