Run Probe

Observer side. A probe dir (checkout-relative, e.g. meta/dojo/identity-probe) carries probe.md — the fixture the observed session executes — and verdict.sh, the read-only oracle (exit 0 = PASS; other exits typed in its header).

Steps

1. Resolve the reference against the session root; confirm both files exist. Done when both paths print.

2. Spawn a fresh session in this environment, by a path that attaches the environment's repositories. Initial prompt, exactly, reference substituted:

   Use the take-probe skill with reference <ref>. If that skill is unavailable, read <ref>/probe.md from the attached checkout and follow it verbatim.