Event Vendor Brief

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name: event-vendor-brief
description: "Brief an event supplier so they quote accurately and deliver what you pictured — the outcome, the constraints, the deliverables, and the questions you need answered in the quote. Use when asked to brief an event supplier, write a vendor brief for caterers, AV, or production, send an RFP for an event, or compare supplier quotes that are not comparable. Produces the outcome brief, the deliverables and constraints, the quote-response template that makes bids comparable, the evaluation criteria, and the questions each supplier must answer."
---

# Event Vendor Brief

Three quotes that cannot be compared is a briefing failure, not a supplier one. Each priced a different event because each was told a different amount. This writes the brief that fixes the variables — outcome, constraints, deliverables, and the exact response format — so the quotes come back on the same basis and the cheapest one is actually the cheapest.

## What This Skill Produces

- **The outcome brief** — what the supplier is being asked to achieve, not just to provide
- **Deliverables and constraints** — the specifics that drive price: quantities, timings, access, and restrictions
- **A quote-response template** — the structure every supplier must return, which is what makes bids comparable
- **Evaluation criteria with weights** — stated up front, including how price is weighted against everything else
- **The questions each supplier must answer** — capability, capacity, contingency, and what they need from you
- **The information they need from you** — venue details, access, timings, and contacts, supplied once rather than repeatedly

## Required Inputs

Ask for these if not provided:
- **The event** — type, date, venue, headcount, format, and the feel you are aiming for
- **The scope for this supplier** — what you want them to cover, and what someone else is covering
- **The constraints** — budget range, venue restrictions, access times, power, noise limits, curfew
- **The deadline** — when quotes are needed and when you will decide
- **What matters most** — price, reliability, creativity, sustainability, or experience with this venue

## Framework: Brief the Outcome, Fix the Variables, Standardise the Response

1. **Brief the outcome first.** 'Guests should be able to hold a conversation while eating' tells a supplier more than a speaker specification, and lets them bring expertise you do not have.
2. **Then fix the variables that move price.** Headcount, duration, service style, access window, and get-out time. Any of these left vague and every quote will assume differently.
3. **Give a budget range.** Withholding it produces quotes aimed at an imagined number and wastes two rounds. A range is not a weakness.
4. **Mandate the response format.** Same line items, same order, same inclusions and exclusions. This single step is what makes comparison possible.
5. **State the evaluation criteria and weights.** Suppliers respond to what is measured, and it keeps your own decision honest later.
6. **Ask what they need from you.** The good suppliers answer this well, and it surfaces your own gaps early.
7. **Send the same brief to everyone, at the same time.** Otherwise you are comparing responses to different questions.

## Output Format

### Supplier brief: [discipline] · [event] · [date]

**Event:** [type, date, venue, headcount, format] · **The feel:** [in a sentence]

**Outcome sought:** [what success looks like from the guest's point of view]

**Scope**
- In scope for you: [list]
- Covered by others: [list, and who]

**Constraints:** venue [access window, load-in route, lift, power available, noise limit, curfew] · budget range [amount–amount] · [other]

**Required response format** — please return exactly these headings
1. Approach — [how you would achieve the outcome]
2. Itemised costs — [line, quantity, unit, total] with **inclusions and exclusions stated separately**
3. Crew — [number, roles, arrival and departure times]
4. Equipment/materials — [list]
5. Contingency — [what you do if X fails]
6. What you need from us — [access, power, information, decisions and by when]
7. References — [two comparable events]

**Evaluation:** [criterion — weight]% each, totalling 100

**Dates:** questions by [date] · quotes by [date] · decision [date] · event [date]

**Contact:** [name, email, phone]

## Quality Checks
- [ ] The outcome is briefed before the specification
- [ ] Every price-moving variable is fixed: headcount, duration, service style, access, get-out
- [ ] A budget range is given
- [ ] A mandatory response format is specified so bids arrive comparable
- [ ] Evaluation criteria and weights are stated up front
- [ ] Suppliers are asked what they need from you
- [ ] The identical brief went to every supplier at the same time

## Anti-Patterns
- **Specifying equipment instead of outcome.** Buys you the supplier's stock list, not their expertise.
- **Withholding the budget.** Costs two rounds of quoting and produces irrelevant proposals.
- **No mandated response format.** Guarantees incomparable quotes and a decision made on presentation quality.
- **Leaving access and get-out vague.** The two largest hidden cost drivers in event supply.
- **Different briefs to different suppliers.** Whatever you learn from the comparison is noise.
- **Not asking what they need from you.** The gaps surface on the day instead.
- **Choosing on headline price.** The exclusions are where the difference actually is.

## Example Trigger Phrases
- "Write a brief for an AV supplier for our conference"
- "Our catering quotes are impossible to compare — what should the brief have said?"
- "Write an RFP for event production"
- "How do I brief a supplier when I do not know the technical details?"
- "What should I ask suppliers to include in their quote?"