Featured · code-agents
The 2026-07-28 revision drops the initialize handshake and session IDs, moves Tasks into an extension, and ships all four Tier 1 SDKs stable.
Articles
code-agents
The Stateless MCP · Part 3
The same MCP server in C#, and the three places it differs
· 18 min
code-agents
The Stateless MCP · Part 2
The MCP server that asks you a question
· 17 min
ai-models
Claude Opus 5 Is Out. Almost Fable 5, at Half the Price.
· 10 min
code-agents
GitHub Copilot Developer Playbook · Part 1.4
Copilot passed every check - still not cleared for takeoff
· 12 min
code-agents
GitHub Copilot Developer Playbook · Part 1.3
Copilot's subagents don't work the way you'd guess
· 14 min
code-agents
GitHub Copilot Developer Playbook · Part 1.2
Copilot just hired a subcontractor - your firewall has no idea
· 10 min
code-agents
GitHub Copilot Developer Playbook · Part 1.1
Copilot custom instructions - which file actually wins
· 11 min