The Hook System

The first three seconds decide whether the rest of the ad exists. Hooks are the highest-leverage unit of paid creative work — and hook diversity is what earns incremental learning: distinct hooks reach distinct pockets of the audience, while near-identical openings mostly re-test what you already know about the same one. This reference is a complete system for generating, diagnosing, and iterating hooks — not a list of one-liners.

Use it inside Mode 1/3 generation (hooks for new concepts), Mode 2 iteration (diagnosing why an ad underperforms), and the creative strategy loop in creative-roadmap.md.

A Hook Is Three Components, Not a Line

In video, the hook is the simultaneous combination of:

Component	What it is	Job
Visual action	What is literally happening on screen in seconds 0–3	Stop the thumb
Spoken line	The first words of VO or dialogue	Open the loop
Caption text	On-screen header/overlay text	Anchor the claim for sound-off viewers

The no-duplication rule: the three components must complement, never repeat. If the VO says “I stopped paying $200/mo for my gym” while the caption reads “I stopped paying $200/mo” over a static talking head, two of the three slots are wasted. Strong hooks split the work — visual shows the cancellation email, VO says the line, caption names the alternative. When writing hooks, write all three columns explicitly; a hook spec with one column filled in is a third of a hook.

Static ads collapse this to two components (visual + headline) — the same rule applies: the headline must not caption the image.

The Generation Pipeline

Work top-down; hooks written without the upstream steps read like everyone else’s ads.

Segment → Motivation → Format → Hook (three components)

Segment — which specific buyer this hook addresses. Not the whole ICP: a slice with a shared situation (from the Grounded Inputs corpus: reviews, comments, sales-call language). The narrower the segment, the sharper the hook.
Motivation — the single pain, desire, or objection that moves this segment, in their words. Pull verbatim phrases from reviews and comments; the corpus language always outperforms marketing paraphrase.
Format — the delivery vehicle: street interview, POV selfie, screen recording, unboxing, side-by-side demo, text-on-screen static, founder-to-camera, reaction stitch. Pick the format before writing the line — the same motivation reads completely differently as a street-interview answer vs. a confession-to-camera.
Hook — now write the three components for this segment × motivation × format cell.

Output as a hook matrix so coverage is visible:

| # | Segment | Motivation (verbatim source) | Format | Visual action | Spoken line | Caption |

Generate across the matrix, not down a single column — ten hooks for ten segment×motivation cells beat thirty rewordings of one cell. This is the same angle-diversity principle as the static template library: matrix diversity is audience diversity.

Hook Opening Moves

A menu of proven opening structures. Cycle through them like the static templates — don’t cluster on favorites:

Move	Shape	Watch out
Curiosity gap	Withhold the noun: “Nobody tells you what actually causes this”	Must pay off within the ad or it’s clickbait that poisons CVR
Bold claim	A specific, falsifiable statement: “This replaced my entire morning routine”	Needs substantiation on screen or in the on-ramp
First-person confession	“I was doing [common thing] completely wrong”	Reads fake without lived-in detail
Contrast / before-after	Two states shown or named in the first beat	The transformation must be visually honest — see compliance notes in SKILL.md
Relatability / POV	Mirror a hyper-specific situation: “POV: it’s 3pm and you’re on your fourth coffee”	Specificity is the entire mechanic; generic POV is invisible
Question	Ask the exact question the buyer types into search or ChatGPT	Use their phrasing verbatim from the corpus
Countdown / gamified	A timer or on-screen challenge that promises a payoff at the end	Payoff must exist; hold-rate collapses on cheats
Proof-first	Lead with the receipt — the result screenshot, the stat, the demo money-shot	Strongest when the proof brags by itself

The Diagnostic Funnel

Each metric in the delivery funnel isolates a different component. When an ad underperforms, read the funnel to find which part to fix instead of scrapping the whole ad:

Stage	Metric	If it’s weak, the problem is	Fix
Stop	Thumbstop / 3-sec view rate	Visual action (and caption)	New visual opening; same everything else
Stay	Hold rate (3s → 15s / 50% view)	The on-ramp — what follows the hook	Rework seconds 3–15, not the hook
Click	CTR	Desire/offer clarity mid-ad	Sharpen the promise, CTA, or proof
Convert	CVR post-click	Congruence — the page doesn’t continue the ad	Fix the landing page or the claim, per cro

Two rules this table enforces:

A great thumbstop is not a great ad. A clickbait visual that attracts the wrong viewers shows up as high thumbstop + collapsed hold/CVR. Read the whole funnel before declaring a winning hook.
One component per iteration. Change the visual OR the on-ramp OR the offer framing per test cycle — matching the one-variable rule in Common Mistakes.

The On-Ramp Rule

The on-ramp is seconds ~3–15: the bridge from hook to body. A good on-ramp logically extends the hook’s premise; a bad one pivots to a product pitch that abandons it. If the hook promises “what actually causes this,” the next beat must start explaining the cause — not introduce the brand story.

Corollary: every hook test is also an on-ramp test. Swapping a new hook onto an existing ad body usually breaks the premise-bridge; when testing hooks, re-write the on-ramp to match each one. Hold rate is the on-ramp’s metric — diagnose it separately from thumbstop.

Fidelity Laddering

Match production cost to evidence strength (production tiers are defined in creative-roadmap.md):

Hunches ship low-fidelity within a day or two: statics, text-on-screen video, voiceover-over-b-roll, remixes of existing footage. The goal is a cheap signal on the angle, not a polished ad.
Validated angles earn high-fidelity: creator shoots, street interviews, staged demos. Only spend production budget on hooks whose low-fi version already showed a funnel signal (even a single-metric win — a hold-rate spike on an ugly static is evidence).

Testing a hunch with an expensive shoot and testing a proven angle with a throwaway static are both mistakes — the ladder runs in one direction.

Grounding Rules (inherited, non-negotiable)

Hooks inherit every grounding rule from SKILL.md: every hook cites the corpus source its motivation came from; no invented claims, stats, or testimonials; verbatim customer language over paraphrase. Additionally, mine organic content in the niche (top-performing TikToks/Reels/posts, via the scraping skill or the social listening tooling in social) for the audience’s actual vocabulary — the words the niche uses (“GLP-1” vs. the clinical term, the slang for the pain) belong in the caption and spoken line. Organic mining is language research, not copying: take the vocabulary and the visual conventions, never a creator’s specific creative.

Common Failure Modes

Thirty rewordings of one cell — variation without matrix coverage; diversity of segment×motivation is the point
Components duplicating each other — three slots saying one thing
Hook tested, on-ramp inherited — premise-bridge broken, hold rate blamed on the hook
Funnel read stops at thumbstop — clickbait winners scale into CVR craters
Polished hunches — high-fidelity production spent on unvalidated angles
Marketing-voice captions — the corpus and the niche’s organic content define the vocabulary; “revolutionary formula” appears in neither