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    Brief Interrogator

    1

    Questions a vague client brief before you write: a hypothesis, the blocking questions, a recommended answer for each.

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    Brief Interrogator

    Brief Interrogator

    Example session with this skill installed

    Brief: launch a new oat milk in Portugal. Audience: health-conscious millennials. Key message: it's the creamiest oat milk. Mandatory: show the pack, use the tagline 'Creamy by nature'. Competitors: Oatly, Alpro. Deliverables: 1 x 20s video, 3 static posts, 1 landing page. Launch 1 March. Go.

    • Read your context and instructions
    • Compiled the brief interrogator

    No copy yet. The brief has gaps that would send the concepts in the wrong direction. First, what I think the brief is.

    Hypothesis (about 45% sure this is the brief)

    • Goal: get a new oat milk noticed and bought in Portugal from 1 March, in a category where Oatly and Alpro already own the shelf and the conversation.
    • Audience: health-conscious millennials. This is a demographic, not a person yet.
    • The one job: make people believe this oat milk is the creamiest, and put "Creamy by nature" in their heads.
    • The constraint that bites: the claim. "Creamiest" is a comparative claim against named competitors, and it needs proof.

    Facts: what I would fetch (no web search here, so none of this is done)

    • [VERIFY: Oatly's and Alpro's current Portugal positioning and their latest campaigns]. I would fetch their sites, social channels and recent press.
    • [VERIFY: how "creamy" is already used in oat milk in Portugal]. If Oatly or Alpro already own the word, "Creamy by nature" starts behind.
    • [VERIFY: Portuguese and EU rules on comparative and "natural" claims]. "By nature" in the tagline may collide with "natural" claims on a processed oat drink. I would check this before anyone falls in love with it.
    • [VERIFY: shelf price and retail listing of the oat milk category in Portugal], to see where this product sits against the two named brands.

    Missing from the brief and not findable by me: the product itself, the brand, the price, where it is sold, the budget, and any proof for "creamiest".

    Round 1 questions (each with my recommended answer, so you can just nod or correct)

    1. What backs "creamiest"? Taste test, texture measurement, fat or oat content, a barista panel, or nothing yet?
      Recommended: ask the client for the test. If there is none, soften to "creamy" and drop the superlative. A comparative claim against Oatly and Alpro with no proof is a legal and credibility risk, not a copy problem.

    What does "creamy" mean here? Mouthfeel in coffee, texture in cereal, richness for people leaving dairy, or "no watery oat milk"? Each one briefs a different film.
    Recommended: coffee and mouthfeel. It is the most visible moment where oat milks fail, and a 20s video can show it.

    1. What is the real goal? Trial, shelf rotation, brand awareness, or taking share from Oatly or Alpro?
      Recommended: trial. For a launch with a 1 March date, "awareness" would be the lazy answer and it gives no way to judge the work.

    2. What does success look like in a number? Units sold, listings won, landing-page sign-ups, or social reach?
      Recommended: first-month sales or listings, plus landing-page conversion. Whatever the client picks, it decides what the landing page has to do.

    "Health-conscious": what does this mean for this person? Less sugar, no additives, plant-based for the planet, lactose-free, or fitness?
    Recommended: less sugar and no additives. It is the one reading that fits "creamy by nature" without a contradiction. Note the tension: health-conscious people often read "creamy" as "fat" or "added oil". If so, the tagline works against the audience. I would push the client on this.

    1. What do these millennials believe now, and what must they believe after? I suspect: "oat milk is watery or tastes of cardboard" now, "this one is rich and still clean" after.
      Recommended: confirm this with the client's own research. If they have none, this is something I would mine from reviews and forums in Portuguese. [VERIFY]

    2. "Show the pack" and "Creamy by nature": are both fixed, or is one negotiable? Does the tagline have a sign-off position, a lock-up, a legal line?
      Recommended: treat both as fixed, and ask for the brand guidelines and pack artwork now.

    Where does the video run, and where do the posts run? TV, YouTube pre-roll, Instagram, TikTok? Which platform sets the format for the 20s.
    Recommended: social-first, vertical, and sound-off friendly. A 20s spot built for TV will be cut down anyway.

    1. Who else has to sign off? The brand team, the retailer, the legal department, a founder with a strong opinion?
      Recommended: ask now. A late stakeholder is the usual way a launch loses a week.

    2. Has anything been tried before? A previous name, campaign, or pack that failed or is being replaced?
      Recommended: ask, even if the answer is "no". A launch with no history is rare.

    Two things I'd flag already

    • "It's the creamiest" is the key message, and it is also what every oat milk says. A claim anyone can make is not yet a brief. The real question is what makes this one creamier and why a person should care.
    • The brief sailed through without a budget, a date for approvals, or a launch plan behind 1 March. From the signing-off date back to 1 March, there is very little time. I would ask for the production calendar before anything else.

    I can turn the client-side gaps (1, 3, 4, 7, 9) into a short discovery questionnaire in Portuguese, ready to paste into an email. Say the word.

    What I'd need answered before writing

    1. The proof behind "creamiest", or a decision to drop the superlative.
    2. What "creamy" means in this campaign (my pick: coffee and mouthfeel).
    3. The real goal and the number that measures it (my pick: trial, with first-month sales or listings).
    4. What "health-conscious" means for this audience, and whether "creamy" works for them or against them.
    5. Confirmation that "show the pack" and "Creamy by nature" are both fixed, plus the pack artwork and brand guidelines.
    6. Channels and formats for the video, posts and landing page.
    7. Budget, approvals calendar and who signs off.
    8. Results of my lookups on the competitors, on "creamy" in the category, and on the claims rules, all still marked [VERIFY].

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    About this skill

    "Target: young people. Premium but accessible. Go viral. Concepts by Friday." Most briefs arrive like this, and most bad work starts here.

    Brief Interrogator reads the brief the way a sharp strategist would.

    • It restates the brief as a working hypothesis with a confidence figure.
    • It looks up the facts it can find instead of asking you, and marks what it could not check.
    • It asks only the decisions that block starting, in rounds, each question with a recommended answer you can accept with a nod.
    • Vague words like "premium" or "authentic" get pinned down on the spot.
    • It stops at about 95% confidence, so it never interrogates for its own sake, and it never writes copy.

    It ends with "What I'd need answered before writing", and can turn the client-side gaps into a short discovery questionnaire ready to email.

    Tested before launch, twice. Round one, one raw client brief, run with and without the skill and graded blind against five checks written in advance: 5 of 5 with the skill, 1 of 5 without. Round two, four briefs (a bank, an olive oil radio spot, a forwarded Christmas email, an oat milk launch): 18 of 20 with, 7 of 20 without. Without it, Claude skipped the questions and pitched creative territories.

    Who it's for: copywriters, strategists, creative directors, freelancers, and in-house teams who brief agencies.

    TF

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    Skills on Agensi run inside your AI agent. Copy the prompt, paste it into your agent, and it connects to Agensi and installs this skill for you. If a payment is needed, your agent shows it to you first.

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