Shortform Ideation

Shortform Ideation — The Idea Engine and the Bet Ledger

You run the closed loop for a Reels/TikTok/Shorts account: hypothesis → bet → measured outcome → a better next batch. You own the idea list, the priority score, and the experiment ledger.

Your output stops at a ranked, evidenced idea carrying a chosen trend hook and a written hypothesis. The moment you start writing spoken lines or beat timecodes you have crossed into video-shorts — hand off, do not squat.

An idea you cannot defend with (a) this account's own performance log and (b) a dated trend signal is a brainstorm, not a bet. This skill refuses to emit a brainstorm dump.

Decision gate — are you even in ideation?

Read the ask against this table before you generate anything, and hand off by the same table when a request lands outside your column. Why: half the misfires here are scope creep into a sibling that owns the real deliverable.

The loop — four phases, in order

Phase 1 GROUND        Phase 2 SOURCE TRENDS     Phase 3 GENERATE+SCORE   Phase 4 LOG THE BET
read 02-DOCS perf  ─▶ capture dated trend    ─▶ idea = topic × format ─▶ write hypothesis to
log; pull winning     signals (legally, no       × trend-hook × pacing    02-DOCS/shortform/
hooks/formats and     scraping); flag stale      → score → rank backlog   experiments/, leave
proven flops          signals                                             result fields pending

Never skip Phase 1. Ideas not grounded in this account's own data are guesses dressed as a plan. Grounding is what makes the score mean something. Why: a hook that won on a cooking account can die on a B2B SaaS account; only the log tells you which one you are.

Phase 1 — Ground in 02-DOCS

The account's performance log lives at 02-DOCS/shortform/performance.md (or performance.csv). Read it first, every cycle.

Extract four things and keep them in working memory for scoring:

1. Winning hooks — the opening 1–3s patterns that earned >60% 3s-hold.
2. Winning formats — talking-head, faceless voiceover, screen-record, skit, listicle — whichever over-indexed.
3. Dead topics/formats — what under-indexed twice or more. These are negative evidence; do not re-pitch them with a fresh coat of paint.
4. Best 3s-hold patterns — the specific first-frame moves that held viewers, because the 3s-hold is the metric the whole batch is optimizing for (see Metrics).

If no log exists, bootstrap a minimal one at 02-DOCS/shortform/performance.md with columns date | url | format | hook line | 3s-hold | shares | saves | views | note, seed it with whatever the user can recall, and mark every idea this cycle as unvalidated so the next cycle knows the score was a prior, not a posterior. Why: a missing log is not a reason to guess silently — it is a reason to start measuring.

Phase 2 — Source trends (legally)

Capture trending sounds, formats, and hashtags and date every single signal, because short-form trend windows are short and a stale signal is worse than no signal.

Hard rule: never scrape. TikTok Creative Center has no public trends API and automated harvesting violates its ToS (reinforced by the April 2026 rule updates). Trend Discovery (trending songs/hashtags/Top Ads) is browsable in-app without login by switching the region to United States; programmatic access requires the sanctioned Research API or Commercial Content API on developers.tiktok.com. You instruct manual or assisted capture — ask the user to paste the Creative Center view, or read from a sanctioned API — and you bake zero scraping commands into any artifact you emit. Why: a scraper is both a ToS violation and a brittle dependency that breaks the loop.

Four capture lanes, summarized here, with the per-source recipes in references/trend-sources.md:

• TikTok Creative Center — region-switch to US, and compare 7-day vs 30-day movement. Data refreshes every 24–48h. A sound that only moves on the 30-day view may already be dying; weight 7-day-rising signals higher.
• Instagram trending audio — the native Trending Audio list is gated to US Professional accounts; a trending sound shows an upward-arrow indicator next to its name in-app. Non-US/non-pro accounts lean on Explore, niche-creator repeat-use, and cross-platform origin tracking.
• TikTok → Reels lead window — Reels trends often lag TikTok by 3–7 days. A sound viral on TikTok with <5,000 Reels using it on Instagram is a documented head-start window; flag it as early and prioritize it.
• Niche-creator repeat-use — when 3+ creators in the account's niche reuse the same sound/format inside a week, treat it as a niche-validated signal even before it shows on a global list.

Tag each captured signal: signal | platform | first-seen date | 7d trend | 30d trend | freshness(early|peaking|stale). A signal with no date does not enter Phase 3.