onboarding-index

# ult-onboarding-index ## Overview `ult-repo-layout` resolves *where* CEP content lives. `ult-autoscaffold-content` and `compiling-project-guidelines` make sure real content exists at those resolved paths. Neither of them assembles a single entry point into all of it, and neither speaks the native onboarding dialect of each coding tool (Copilot, Claude Code, Cursor, Codex). `ult-autoscaffold-content/SKILL.md` names this gap explicitly, in its "What this skill deliberately does not do" section: > Does not author Copilot/Claude/Cursor/Codex-specific instruction files or > a root multi-tool onboarding index. That's a distinct, deferred concern — > this skill's own output is tool-agnostic CEP content, consumed the same > way regardless of which agent reads it. This skill is that concern. It discovers what CEP-managed content already exists in the target repo, then writes one canonical root `AGENTS.md` plus thin per-tool pointer stubs that link into it — so a first-time user of any of the four tools finds the same onboarding trail regardless of which one they open first. **This is not this OSS repo's own root `AGENTS.md`.** This repo's `AGENTS.md` is generated by `catalog/export_adapters.py`'s `render_agents_md()` — a table of *this library's own skill catalog*. This skill never touches that file. It runs *inside a separate target repo* that has installed and is using CEP, and writes an `AGENTS.md` there describing *that repo's* CEP content — a different document, in a differ...