AI Blueprint’s AGENTS.md had grown to about 19 KB. Every new session loaded
the workflow reference, even when the agent didn’t need it yet. A contributor
flagged the overhead, and I moved that reference into blueprint/workflow.md.
The startup file is now about 5 KB. It keeps the project basics and the rules that need to be there from the start. Skills read the longer reference when the work calls for it.
In a fresh Claude Code session on my setup, the startup prompt dropped from 51,630 to 46,919 tokens. That’s 4,711 tokens, or about 9 percent. My global instructions are part of that total, so this isn’t a universal savings figure. It also isn’t a claim that builds run 9 percent faster.
I checked the change with real Claude Code and Codex runs as well as the installer tests. Those runs caught an instruction gap that the static checks missed: Codex guessed a helper argument that wasn’t valid. Listing the allowed values fixed it.
The follow-up trims shipped in 1.14.0. A status command no longer needs to load an 18 KB recovery guide just to show a small completion screen, and the validator now checks reference links across the skill files.
One upgrade detail matters: the updater adds the new workflow file, but it
preserves a project’s existing AGENTS.md. Older installations won’t
automatically get a smaller startup file. The diagnostic command recommends
the trim instead of rewriting project-owned instructions.
More on the AI Blueprint project page.