Tells a publishing agent what the social networks allow, cost and return in autumn 2026, checked on 8 October 2026, before it plans or writes the posting code. Covers X (no free tier, pay per request, a post with a link costs more), Hashnode (public API now needs a paid plan), Pinterest feed auto-publish (domain claim, first board by alphabet, image tag, first pins within the hour), Mastodon (media 202, scopes, token replacement, one-hour Idempotency-Key, no card fetched), Bluesky (three length units, byte offsets, card thumbnail upload, write budget) and Meta (Development mode versus Live). Answers as JSON when asked and says which facts to re-check. Use when asked to plan, write, fix or review automatic posting of articles to social networks, or why posts do not appear.
Social API Reality 2026 is a tested SKILL.md that tells a publishing agent what the social networks allow, cost and return in autumn 2026, checked on 8 October 2026, before it plans or writes the posting code; an agent buys it once for $0.05 over x402.
It does not post anything, hold your tokens or look at your accounts, and it cannot see a price or plan that changed after 8 October 2026. It covers X, Hashnode, Pinterest, Mastodon, Bluesky and Meta Pages only; Reddit, LinkedIn, TikTok and Telegram are not in it. It is no guide to what gets clicks. It states what each service allows, costs and returns, and tells you which facts to check again.
Tested 2026-10-08 with a strong and a weak model.
| Sonnet | Haiku | |||
|---|---|---|---|---|
| with | without | with | without | |
| Answers that match the checked fact (24 questions) | 24/24 | 19/24 | 23/24 | 19/24 |
The same questions on both sides. Without the skill both models failed the same five (Sonnet) or four (Haiku) of them: they believed Hashnode read-only queries are still free, sent Pinterest pins to the newest or first-listed board instead of the first by alphabet, expected the first pins after about 24 hours instead of under an hour, and thought the Facebook posts made in Development mode stay hidden and must be republished after Live. They knew X pricing, Mastodon 202, the Idempotency-Key window and Bluesky units and offsets. With the skill, Sonnet passed all 24 across four runs; Haiku still chose the first-listed board on one Pinterest question.
Same cases and the same checks with and without the skill. The cases are ours, written around what the skill is for; with a handful of cases, a difference of one or two is within noise.
Our own test text, before and after the skill ran. Excerpts only.
Before
We want to post blog headlines to X from a script, each with a link to the article, using the official API. Is there a free tier for creating posts, and what does one post that contains a link cost per request in US dollars today? Answer {"free_tier": true|false, "usd_per_post_with_link": <number>}.
After
{"free_tier": false, "usd_per_post_with_link": 0.20}
Any language. Tried in: English.
Perpetual, non-exclusive; use and modify for yourself incl. paid work; no resale or republishing. Holder: Georgi Kalchev, aiskills402.com. Full terms.
Current version 1.0.0, updated 2026-10-08. Whoever bought an earlier version gets new ones free through the same re-download token.
v1.0.0 · 2026-10-08
First release: what the social networks allow, cost and return in autumn 2026, for agents that publish articles. Covers X (no free tier, pay per request, a link post costs more), Hashnode (public API needs a paid plan), Pinterest feed auto-publish (domain claim, first board by alphabet, image tag, first pins within the hour), Mastodon (media 202, write:media and token replacement, one-hour Idempotency-Key, uploaded card picture), Bluesky (graphemes, bytes and UTF-16 units, byte offsets with a worked example and the end rule, card thumbnail blob, write points) and Meta (Development mode versus Live). Facts checked on 8 October 2026; the skill tells the agent which facts to re-check. Measured on 24 questions: Sonnet 24 of 24 with the skill against 19 without, Haiku 23 against 19. Price $0.05 once.
A checked picture of what the networks do now, before the agent plans anything: X has no free tier and bills a post with a link at a higher rate, Hashnode's public API needs a paid plan, Pinterest feeds go to the first board by alphabet, Mastodon media upload answers 202 on success, Bluesky counts length and offsets in different units, and a Facebook app in Development mode posts that only its team can see. When a question shows a JSON shape, the answer is that JSON and nothing else.
Every fact was read on the service's own documentation or announcement on 8 October 2026, except a few marked as measured by the author in real posting tests, with their dates. The skill tells the agent that prices, plans and limits change and to ask for a fresh look in the developer console before building on them. A newer version will carry a new date in the changelog.
No. It never posts, never asks for a token and never touches an account. It is a text file the agent reads before it plans or writes the posting code, and it works with any code you already have, in any language. It helps with retries too: it says which channel has a safe retry key, for how long, and when a retry makes a duplicate.
On a small test of 24 questions, Sonnet got 24 of 24 questions right with the skill and 19 without; Haiku 23 against 19. Both models alone were wrong on the same facts: Hashnode reads now needing a paid plan, the Pinterest board chosen by alphabet, first pins within the hour, and Facebook posts becoming visible after Live. Haiku still picked the first-listed Pinterest board once. A first run had two Bluesky offset slips from Sonnet; the text was fixed and three re-runs were right.
SEO & Content
Writes the SEO title, meta description and (on request) the H1 heading for one web page, in the page's own language, inside hard character limits, matching what the searcher wants. Use when asked to write or rewrite a page title, meta description, SEO snippet or H1 for a page, product, service, article or landing page.
SEO & Content
Writes schema.org JSON-LD for one web page from the facts you give it, answered as JSON only with no script tag and no fence. Covers Article, BlogPosting, Product with Offer, BreadcrumbList, FAQPage, Event, Organization, LocalBusiness, Recipe and JobPosting. Leaves out every fact that was not given instead of inventing it: no rating, review, price, availability, author, date or salary appears unless the page states it. Writes prices as plain numbers with an ISO currency code, dates in ISO 8601 with the stated offset, absolute URLs built from the site origin, and breadcrumb positions from 1. Use when asked to write, fix or check JSON-LD, structured data or schema markup for a page, product, article, event, FAQ or breadcrumb.