Orientation openers — session opened by asking "where am I?"
Escalations — session contained report_feedback
Retrieval-missed (dashed, superseded) — kept only so the break in the series stays legible
Retrieval-missed flags a session that consulted the playbook and then made ≥4 more calls.
Roughly half of that is session length, not retrieval: sessions that never touched the
playbook trip the same threshold 32% of the time, and a third of the flagged ones spend
their follow-up on mutations — an operator acting on a good answer, counted as having
failed to get one. "Did the playbook answer?" above replaces it. Do not act on this line.
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