Talking to it
- @mention it in a channel:
@Horizon ... - DM it directly — no @mention needed
- Slash command:
`/usehorizon <your question>` - Follow-ups in a thread it’s already replied in don’t need a fresh @mention — Horizon reconstructs the thread’s history, so “now find their emails” works on the very next message and knows exactly who “their” refers to.
Compound requests
Ask for something that takes several steps and Horizon chains the underlying tool calls itself in one turn — you don’t have to break it into separate questions:“Find companies like Acme Corp, then find the CEO’s email at each one.”Behind the scenes this runs an enrich → derive signals → search → enrich → find-email chain automatically, with a short progress update in-thread if it takes a few steps.
Lists and batches
Paste (or type) a list of names, companies, or URLs and Horizon processes each independently, then compiles one combined answer — never a reply per item:“Enrich this list and find each person’s email: [30 names]”You can also attach a file instead of pasting — a
.csv, .tsv, or
plain .txt list of names/companies/URLs is read directly, so Horizon
knows the exact item count up front rather than estimating from a long
paste (this feeds a more accurate credit estimate into the confirmation
step below).
If the result is a tabular list beyond about 20 rows, Horizon delivers it
as a downloadable CSV file attached to the reply instead of a wall of text
in the message itself.
Honest answers, live cost transparency
Horizon never fabricates a name, title, or email — an honest “not found” is preferred over a plausible-looking guess, and every answer that spent credits ends with exactly what it cost:Spend confirmation
Before running anything estimated above 50 credits or 10 items, Horizon pauses and posts a card instead of just running it:Confirm before I proceed (plan summary + credit estimate) [Run it] [Cancel]Clicking Run it starts the approved plan; Cancel spends nothing. This is a hard rule, not a suggestion the model can talk itself out of — a big batch or an expensive multi-step chain always stops here first.
If a batch is too large for one turn
Very large batches (upwards of ~100 items) can hit a per-conversation budget before finishing. Horizon delivers whatever it completed so far and offers to continue — just reply continue in the same thread and it picks up where it left off using the thread’s own history.Free-tier daily limit
A free-trial workspace gets 20 agent messages per day (resets at midnight UTC) — this protects against runaway usage while you’re still on the $0 trial. Hitting it shows a friendly limit message, not an error:You’ve hit today’s free-tier limit of 20 questions — it resets at midnight UTC. Upgrade to a paid credit pack any time for unlimited daily messages.A workspace on any paid credit pack is never capped — only the request rate and credit balance shared with the REST API and MCP server apply. See Credits & Pricing.