What changed
Skills did not kill MCP, and long context did not magically kill retrieval.
GitHub’s latest AI discussion addresses whether agents should read code directly, whether retrieval-augmented generation is obsolete and whether skills replace MCP.
How it works
The technologies operate at different layers: retrieval finds relevant knowledge, skills package repeatable instructions, and MCP standardizes connections to tools and data.
An agent may use all three in one workflow—for example, retrieve project context, follow a deployment skill and call an external service through MCP.
Why it matters
The practical question is not which acronym wins. It is which missing capability is causing the current agent to fail.
The source link below contains the technical details and release context; the result should be judged on the specific workflow it improves, not the announcement alone.
Source published 2026-09-22. Coverage is based on the maker’s announcement and demonstration.