Social and Video Platforms
Purpose
Give honest guidance on social and video platforms as discovery surfaces: what the platforms
themselves document, what independent research actually shows, and — the part most sources get wrong —
how much of the prevailing "social strategy" advice is unvalidated folklore that should not be shipped
as a recommendation. This is the counterpart to .agents/skills/ref-sp-web-seo/SKILL.md for the
platforms Google does not own.
Verify before you assert — this rots as fast as SEO
Content below was verified 2026-07-13. Platform algorithms, tools, and public statements change
constantly, and almost none of it is versioned the way Google's docs are. Every dated claim has a row
in ./references/sources.md with its source, its tier, and what would invalidate it. Re-fetch the
platform's own newsroom/help pages before asserting a specific — and read the content, not the status
code (these pages are client-rendered; a curl may return an empty shell, so use a real browser via
.agents/skills/ref-sp-dev-playwright-cli/SKILL.md).
When to use this skill
- Asked whether a brand "should be on TikTok / YouTube / Instagram" for reach.
- Asked how discovery, the feed, or in-app search works on a platform.
- Asked whether posting outbound links hurts reach ("zero-click content").
- Asked how a younger audience finds products, places, or how-tos.
- Asked how social or video content shows up in Google.
- Sanity-checking a social-strategy claim, an agency deck, or a "platform algorithm 2026" article.
Route elsewhere when: the question is attribution or "which channel converts"
(.agents/skills/ref-sp-web-marketing/SKILL.md — it owns Direct, dark social, and self-reported
attribution; do not restate it here); visibility in AI answers / chatbots
(.agents/skills/ref-sp-web-seo-ai/SKILL.md); or ordinary SEO of the site itself
(.agents/skills/ref-sp-web-seo/SKILL.md).
The honest position, stated first
Three things are true at once, and most advice collapses them:
- Platform search is real, and at least one platform documents it. TikTok states plainly that
"search powers discovery on TikTok," and ships Creator Search Insights — a first-party tool
showing which topics people search and which are "content gaps" (searched often, few videos). That
is tier-1 evidence that in-app search matters and a demand-side tool exists. Treat it as the
strongest fact in this skill.
- The headline behaviour stat is real but far narrower than quoted. The famous "40% of young
people use TikTok/Instagram instead of Google" traces to a Google SVP describing US 18–24-year-olds
"looking for a place for lunch" — "something like almost 40%." It is a real first-party
statement about local/dining discovery in one age band in one country. "Gen Z has abandoned
Google" is a documented misrepresentation of it. Quote the real version.
- Almost every tactic layered on top is folklore. Precise reach-penalty percentages, "semantic
chunking" of video for LLMs, "transcribe everything," "creator ads always beat display" — these are
agency assertions, often from vendors selling the service. Apply the claim-tiering rule from
.agents/skills/ref-sp-web-seo/SKILL.md: documented → independently researched → inferred → vendor
assertion. Say which tier you are in, every time.
So the deliverable is: name the audience and intent, check whether platform presence is actually
warranted for them, do the small documented things, and refuse to ship the folklore.
Is this audience actually on-platform? (do not assume)
The single most expensive mistake is investing in a platform because a statistic said a cohort uses
it, without checking that this brand's audience and intent match. Discipline:
- Anchor to real cohort data, and note its bounds. The Swedish Internet Foundation's 2025 survey
(real population survey) found TikTok reaches 78% of high-school students and YouTube dominates
every age group — strong for that country and cohort, not a global constant. Ask for the equivalent
for the actual target market rather than importing a headline.
- Match the intent, not just the demographic. The 40% stat is about finding lunch. Platform
discovery is strong for local, product, food, how-to, and entertainment intents; weak for many B2B,
high-consideration, or reference queries. A cohort being "on TikTok" does not mean they search TikTok
for your thing.
- When the data does not exist, say so. "We do not know whether this audience uses this platform
for this intent" is a finding. The fix is a small test, not a strategy deck.
In-app search and discovery
Where a platform documents its own discovery, use that rather than a blog's reverse-engineering.
- TikTok documents search-driven discovery and provides Creator Search Insights (searched
topics, content-gap topics, a search-value signal that feeds Creator Rewards) and brand Search
Hubs. This is first-party demand data — the closest thing to keyword research the platform offers.
- YouTube is both the second-largest search destination and a video library; its own creator
documentation is the source of truth for titles, descriptions, and chapters. Verify current
guidance rather than reciting it.
- Recommendation feeds are not search. "For You" ranking is opaque and undocumented; anyone
claiming to know its weights is selling a hypothesis. Optimise for the documented search surface,
treat the feed as unpredictable distribution.
Outbound links and "zero-click content"
The claim: platforms suppress posts carrying external links, so publish full value natively instead of
driving a click. Handle it with calibrated confidence, because the evidence is genuinely mixed.
- The effect is plausible and partly evidenced, but the magnitude is disputed and no platform
confirms it. The largest independent LinkedIn analysis (van der Blom, ~1.3M posts) reports a body
link reduces median reach ~18–19%; a separate large analysis (Saywhat, ~400k posts) found
link-containing posts performed better, crediting content quality. Two big independent studies,
opposite conclusions. No platform documents a link penalty.
- So: design as if native value matters, without quoting a number as fact. Lead with standalone
value in the post; put the link where it costs least (bio, comment, second step) if the platform
suggests it — but present any specific percentage as "reported by X," tier-2 at best, not a law.
- "Zero-click" is a reach tactic, not a measurement excuse. If you keep users on-platform, you
also give up the referrer — which lands the visit in Direct. That is a measurement problem owned by
.agents/skills/ref-sp-web-marketing/SKILL.md; hand the attribution half there.
Measuring it: two walled gardens
Social measurement fails in two independent ways, and conflating them produces nonsense.
- Native platform analytics are non-comparable and self-serving. Each platform defines a "view,"
"reach," and "engagement" differently, does not let you export a clean cross-platform picture, and
has an interest in the numbers looking good. Never rank platforms against each other on their own
metrics.
- Off-platform, attribution is broken. A tap from a bio link arrives without a referrer and lands
in Direct. This is the dark-social problem — measured, and owned by
.agents/skills/ref-sp-web-marketing/SKILL.md (self-reported attribution is the recovery). Do not
restate it; route there.
The one first-party cross-surface measurement that exists is Google's Search Console platform
properties: connect an Instagram, TikTok, X, or YouTube account and see clicks, impressions, CTR,
and average position for how that content performs in Google Search, Discover, and News. Its limit
is the whole point — it measures the Google surface only, not native platform engagement (a
TikTok video's TikTok views are invisible to it). Useful, and narrow. See
.agents/skills/ref-sp-web-seo/SKILL.md for how that Google surface behaves.
Defaults
- Lead with the tier. State whether each claim is platform-documented, independently researched,
inferred, or vendor-asserted — the audience is drowning in confident folklore.
- Prefer a small test to a strategy deck. One platform, one intent, a fixed window, self-reported
attribution. Learn whether the audience is there before committing budget.
- Do the documented things first: use the platform's own search-insight tool, publish native
value, verify current creator guidance. Skip the reverse-engineered feed hacks.
- Re-verify before asserting. Platform tools and statements change monthly; a claim more than a
few months old is suspect.
Gotchas
- Do not import a foreign statistic as a local fact. Swedish survey numbers, US survey numbers,
and a Google exec's dining anecdote are not interchangeable, and none is global.
- Do not quote an algorithm-penalty percentage as settled. The best independent studies
contradict each other and the platforms stay silent.
- Do not treat "For You" reach as controllable. It is undocumented; optimising for it is
optimising against a black box.
- Do not confuse native reach with business outcome. A million views that you cannot attribute and
that drove no action is a vanity metric — the sample-size and signal-vs-noise discipline in
.agents/skills/ref-sp-web-marketing/SKILL.md applies here too.
Scope
Out of scope — paid social advertising. Ad formats, bidding, Spark Ads, and creator-ad buying are
paid media, a separate discipline with its own measurement (the platforms provide conversion tracking
for spend they are paid for). This skill is about organic discovery and reach. Say so if a user
conflates the two; "boost it" is not the same decision as "should we be here."
References
./references/sources.md — provenance by section, with each claim's evidence tier and what would
invalidate it. Read it before asserting any dated specific.
.agents/skills/ref-sp-web-marketing/SKILL.md — attribution, dark social, and whether a difference
is signal or noise. It owns measurement; this skill routes there rather than restating it.
.agents/skills/ref-sp-web-seo/SKILL.md — how content performs on the Google surface, and the
claim-tiering rule this skill applies.
.agents/skills/ref-sp-web-seo-ai/SKILL.md — visibility in AI answers, the neighbouring
"new discovery surface" concern.
1---2name: ref-sp-web-social-media3description: Decide whether and how a site or brand should invest in social and video platforms (TikTok, YouTube, Instagram, LinkedIn, X) for organic discovery — separating what the platforms and independent research actually document from the large layer of agency folklore, and measuring it honestly inside walled-garden analytics. Use when: asked whether to be on TikTok/YouTube/Instagram for reach, how discovery or in-app search works on a platform, whether outbound links hurt reach, how younger audiences find things, how social content shows up in Google, or judging a social-strategy claim or agency deck.4license: MIT5---67# Social and Video Platforms89## Purpose1011Give honest guidance on social and video platforms as discovery surfaces: what the platforms12themselves document, what independent research actually shows, and — the part most sources get wrong —13how much of the prevailing "social strategy" advice is unvalidated folklore that should not be shipped14as a recommendation. This is the counterpart to `.agents/skills/ref-sp-web-seo/SKILL.md` for the15platforms Google does not own.1617## Verify before you assert — this rots as fast as SEO1819**Content below was verified 2026-07-13.** Platform algorithms, tools, and public statements change20constantly, and almost none of it is versioned the way Google's docs are. Every dated claim has a row21in `./references/sources.md` with its source, its tier, and what would invalidate it. Re-fetch the22platform's own newsroom/help pages before asserting a specific — and read the content, not the status23code (these pages are client-rendered; a `curl` may return an empty shell, so use a real browser via24`.agents/skills/ref-sp-dev-playwright-cli/SKILL.md`).2526## When to use this skill2728- Asked whether a brand "should be on TikTok / YouTube / Instagram" for reach.29- Asked how discovery, the feed, or **in-app search** works on a platform.30- Asked whether posting outbound links hurts reach ("zero-click content").31- Asked how a younger audience finds products, places, or how-tos.32- Asked how social or video content shows up in Google.33- Sanity-checking a social-strategy claim, an agency deck, or a "platform algorithm 2026" article.3435**Route elsewhere when:** the question is attribution or "which channel converts"36(`.agents/skills/ref-sp-web-marketing/SKILL.md` — it owns Direct, dark social, and self-reported37attribution; do not restate it here); visibility in AI answers / chatbots38(`.agents/skills/ref-sp-web-seo-ai/SKILL.md`); or ordinary SEO of the site itself39(`.agents/skills/ref-sp-web-seo/SKILL.md`).4041## The honest position, stated first4243Three things are true at once, and most advice collapses them:44451. **Platform search is real, and at least one platform documents it.** TikTok states plainly that46 "search powers discovery on TikTok," and ships **Creator Search Insights** — a first-party tool47 showing which topics people search and which are "content gaps" (searched often, few videos). That48 is tier-1 evidence that in-app search matters and a demand-side tool exists. Treat it as the49 strongest fact in this skill.502. **The headline behaviour stat is real but far narrower than quoted.** The famous "40% of young51 people use TikTok/Instagram instead of Google" traces to a Google SVP describing US 18–24-year-olds52 *"looking for a place for lunch"* — "something like almost 40%." It is a real first-party53 statement about *local/dining discovery in one age band in one country*. "Gen Z has abandoned54 Google" is a documented misrepresentation of it. Quote the real version.553. **Almost every tactic layered on top is folklore.** Precise reach-penalty percentages, "semantic56 chunking" of video for LLMs, "transcribe everything," "creator ads always beat display" — these are57 agency assertions, often from vendors selling the service. Apply the claim-tiering rule from58 `.agents/skills/ref-sp-web-seo/SKILL.md`: documented → independently researched → inferred → vendor59 assertion. Say which tier you are in, every time.6061So the deliverable is: **name the audience and intent, check whether platform presence is actually62warranted for them, do the small documented things, and refuse to ship the folklore.**6364## Is this audience actually on-platform? (do not assume)6566The single most expensive mistake is investing in a platform because a statistic said a cohort uses67it, without checking that *this brand's* audience and intent match. Discipline:6869- **Anchor to real cohort data, and note its bounds.** The Swedish Internet Foundation's 2025 survey70 (real population survey) found TikTok reaches 78% of high-school students and YouTube dominates71 every age group — strong for that country and cohort, not a global constant. Ask for the equivalent72 for the actual target market rather than importing a headline.73- **Match the intent, not just the demographic.** The 40% stat is about *finding lunch*. Platform74 discovery is strong for local, product, food, how-to, and entertainment intents; weak for many B2B,75 high-consideration, or reference queries. A cohort being "on TikTok" does not mean they search TikTok76 for *your* thing.77- **When the data does not exist, say so.** "We do not know whether this audience uses this platform78 for this intent" is a finding. The fix is a small test, not a strategy deck.7980## In-app search and discovery8182Where a platform documents its own discovery, use that rather than a blog's reverse-engineering.8384- **TikTok** documents search-driven discovery and provides **Creator Search Insights** (searched85 topics, content-gap topics, a search-value signal that feeds Creator Rewards) and brand **Search86 Hubs**. This is first-party demand data — the closest thing to keyword research the platform offers.87- **YouTube** is both the second-largest search destination and a video library; its own creator88 documentation is the source of truth for titles, descriptions, and chapters. Verify current89 guidance rather than reciting it.90- **Recommendation feeds are not search.** "For You" ranking is opaque and undocumented; anyone91 claiming to know its weights is selling a hypothesis. Optimise for the documented search surface,92 treat the feed as unpredictable distribution.9394## Outbound links and "zero-click content"9596The claim: platforms suppress posts carrying external links, so publish full value natively instead of97driving a click. Handle it with calibrated confidence, because the evidence is genuinely mixed.9899- **The effect is plausible and partly evidenced, but the magnitude is disputed and no platform100 confirms it.** The largest independent LinkedIn analysis (van der Blom, ~1.3M posts) reports a body101 link reduces median reach ~18–19%; a separate large analysis (Saywhat, ~400k posts) found102 link-containing posts performed *better*, crediting content quality. Two big independent studies,103 opposite conclusions. No platform documents a link penalty.104- **So: design as if native value matters, without quoting a number as fact.** Lead with standalone105 value in the post; put the link where it costs least (bio, comment, second step) *if* the platform106 suggests it — but present any specific percentage as "reported by X," tier-2 at best, not a law.107- **"Zero-click" is a reach tactic, not a measurement excuse.** If you keep users on-platform, you108 also give up the referrer — which lands the visit in Direct. That is a measurement problem owned by109 `.agents/skills/ref-sp-web-marketing/SKILL.md`; hand the attribution half there.110111## Measuring it: two walled gardens112113Social measurement fails in two independent ways, and conflating them produces nonsense.1141151. **Native platform analytics are non-comparable and self-serving.** Each platform defines a "view,"116 "reach," and "engagement" differently, does not let you export a clean cross-platform picture, and117 has an interest in the numbers looking good. Never rank platforms against each other on their own118 metrics.1192. **Off-platform, attribution is broken.** A tap from a bio link arrives without a referrer and lands120 in Direct. This is the dark-social problem — measured, and owned by121 `.agents/skills/ref-sp-web-marketing/SKILL.md` (self-reported attribution is the recovery). Do not122 restate it; route there.123124**The one first-party cross-surface measurement that exists** is Google's Search Console **platform125properties**: connect an Instagram, TikTok, X, or YouTube account and see clicks, impressions, CTR,126and average position for how *that content performs in Google Search, Discover, and News*. Its limit127is the whole point — it measures the **Google surface only**, not native platform engagement (a128TikTok video's TikTok views are invisible to it). Useful, and narrow. See129`.agents/skills/ref-sp-web-seo/SKILL.md` for how that Google surface behaves.130131## Defaults132133- **Lead with the tier.** State whether each claim is platform-documented, independently researched,134 inferred, or vendor-asserted — the audience is drowning in confident folklore.135- **Prefer a small test to a strategy deck.** One platform, one intent, a fixed window, self-reported136 attribution. Learn whether the audience is there before committing budget.137- **Do the documented things first:** use the platform's own search-insight tool, publish native138 value, verify current creator guidance. Skip the reverse-engineered feed hacks.139- **Re-verify before asserting.** Platform tools and statements change monthly; a claim more than a140 few months old is suspect.141142## Gotchas143144- **Do not import a foreign statistic as a local fact.** Swedish survey numbers, US survey numbers,145 and a Google exec's dining anecdote are not interchangeable, and none is global.146- **Do not quote an algorithm-penalty percentage as settled.** The best independent studies147 contradict each other and the platforms stay silent.148- **Do not treat "For You" reach as controllable.** It is undocumented; optimising for it is149 optimising against a black box.150- **Do not confuse native reach with business outcome.** A million views that you cannot attribute and151 that drove no action is a vanity metric — the sample-size and signal-vs-noise discipline in152 `.agents/skills/ref-sp-web-marketing/SKILL.md` applies here too.153154## Scope155156**Out of scope — paid social advertising.** Ad formats, bidding, Spark Ads, and creator-ad buying are157paid media, a separate discipline with its own measurement (the platforms provide conversion tracking158for spend they are paid for). This skill is about *organic* discovery and reach. Say so if a user159conflates the two; "boost it" is not the same decision as "should we be here."160161## References162163- `./references/sources.md` — provenance by section, with each claim's evidence tier and what would164 invalidate it. Read it before asserting any dated specific.165- `.agents/skills/ref-sp-web-marketing/SKILL.md` — attribution, dark social, and whether a difference166 is signal or noise. It owns measurement; this skill routes there rather than restating it.167- `.agents/skills/ref-sp-web-seo/SKILL.md` — how content performs on the Google surface, and the168 claim-tiering rule this skill applies.169- `.agents/skills/ref-sp-web-seo-ai/SKILL.md` — visibility in AI answers, the neighbouring170 "new discovery surface" concern.