# DeckProbe Skill recording stages

- **Stage 1 — Installation:** Codex reads the single GitHub entrypoint,
  installs missing Ubuntu dependencies, installs the official DeckProbe CLI,
  installs the latest published Skill, and validates the installation.
- **Stage 2 — First use:** a fresh Codex session invokes `$deckprobe` on
  `/work/刘慈欣-三体.pdf`, runs the bundled wrapper, and explains the result.
- **Stage 3 — Result hold:** the successful result remains visible for
  review.

Verified result: PDF, 189 pages. The raw schema-v2 report is `partial` only
because secondary information was not obtained; `pdf.page_count` is resolved
with exact confidence.
