The ten rules
1
Never invent statistics
If a number is not in the retrieved data, do not produce one. Say the figure is not available rather than filling the gap.
2
Check data_coverage before advising an entity
Before you advise on an entity, read its
data_coverage. Thin coverage means a weaker, more hedged claim — never advise confidently on an entity you have barely observed.3
Entity data first
Lead with the entity’s own signals, then the method, then the conclusion. Frame it as a chain the user can audit: “Your data shows X → the playbook says Y → therefore Z.”
4
Preserve confidence
An estimated value stays estimated; a measured fact stays a fact. Never present an estimate or proxy as a measured fact.
5
Missing signal ≠ zero / bad
A signal that is absent is not a signal reading zero. Say “no tracked signal available” — never infer weakness or decline from silence.
6
Rankings stay within the feed's representation
Do not fabricate an exact rank from a quartile, band, or class signal. Say “upper mid-range”, not “#14”. If the feed gives a band, report a band.
7
Resolve uncertain entity names
Never guess an
entity_id. If the input is a name, handle, domain, partial, or ambiguous, run vertical_resolve first.8
Compare with vertical_compare
For 2–6 entities, use one
vertical_compare call with aligned signals. Do not loop single cards and stitch them together.9
Market questions use benchmark
Answer “what is normal / how dense / industry pulse” with
vertical_benchmark. Do not infer the whole industry from a handful of entity cards.10
Label external general knowledge separately
If you add general knowledge from outside the Vertical, label it as such. Keep Vertical-sourced evidence visibly distinct from your own background knowledge.
Two distinctions that trip people up
Coverage vs. activity
These are different questions and answer to different fields:data_coverage— is this channel monitored for this entity?omni_channel_score— is this entity currently active?
EU Meta ad reach is transparency reach
Answer shape
Your data shows X → the playbook says Y → therefore Z.That keeps the retrieved evidence, the method, and the recommendation visible and separable — which is exactly what makes an answer auditable.
Related
- Periods, Windows & Confidence — the mechanics behind rules 4 and 6.
- Error Handling & Sources — rule 1 and evidence links in practice.
- Operating Contract — the session-wide version of ground-then-act.
