semantic-core

semantic-core is a skill for Claude Code from theYahia/WWmcp. It costs 24 tokens per session (636 once invoked), scanned A, original, MIT.

A keyword research workflow for the Russian market using Yandex Wordstat, a service that shows search-query demand. It collects related phrases, search volumes, meaning-based groups, and seasonal trends.

In plain words
What is it for?
Use it to build a keyword set, remove duplicates, sort phrases by monthly volume, group them as commercial, informational, or branded, and check seasonality for high-volume terms.
Why use it?
It replaces guesswork about what people search for with measured demand and clearer search intent. It also shows when interest rises or falls during the year.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter.

Good fit Use it to build a keyword set, remove duplicates, sort phrases by monthly volume, group them as commercial, informational, or branded, and check seasonality for high-volume terms.

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Install with agentmods
npx agentmods add skills/theyahia/wwmcp/semantic-core
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add theYahia/WWmcp --skill semantic-core
Clone the repo
git clone --depth 1 https://github.com/theYahia/WWmcp

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for semantic-core

README.md
[![agentmods](https://agentmods.dev/badge/skills/theyahia/wwmcp/semantic-core/github.svg)](https://agentmods.dev/skills/theyahia/wwmcp/semantic-core)
Your own site
<a href="https://agentmods.dev/skills/theyahia/wwmcp/semantic-core"><img src="https://agentmods.dev/badge/skills/theyahia/wwmcp/semantic-core/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for semantic-core

Your own site · 80×15
<a href="https://agentmods.dev/skills/theyahia/wwmcp/semantic-core"><img src="https://agentmods.dev/badge/skills/theyahia/wwmcp/semantic-core.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 24 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 636 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium analysis-evasion · line 1
    Suspicious Unicode normalization or mixed-script content
    Fix: Review the flagged content for security risks. Ensure no credentials, secrets, or sensitive data are exposed.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00024 $0.00636
Opus 5 $0.00012 $0.00318
Sonnet 5 $0.00005 $0.00127
Haiku 4.5 $0.00002 $0.00064

Measured 6d ago against content hash 14a31886ff54, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

semantic-core scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

servers/yandex-search/.claude/skills/semantic-core/SKILL.md · 56 lines

What it actually says

/semantic-core — Семантическое ядро из Wordstat

Алгоритм

  1. Составь список seed-фраз из запроса пользователя. Если он дал одну — придумай ещё 2-3 синонима и покажи их ему на подтверждение, прежде чем тратить квоту.
  2. По каждой seed-фразе вызови wordstat_top_requests с phrase и limit (1–50, по умолчанию 20). Ответ — связанные запросы с месячным объёмом.
  3. Сведи все выдачи в один список, убери дубли, отсортируй по объёму.
  4. Разбей на кластеры по смыслу: коммерческие («купить», «цена», «заказать»), информационные («как», «что такое», «отзывы»), брендовые.
  5. Для фраз с объёмом выше 10 000/мес вызови wordstat_dynamics с phrase, from_year и to_year — получишь помесячный тренд и увидишь сезонность. Для низкочастотников этот инструмент не работает: он вернёт пустоту, а не ошибку. Не пытайся.
  6. Отдай ядро таблицей: фраза, объём, кластер, интент, сезонный пик.

Формат ответа

## Семантическое ядро: «доставка цветов»

Всего собрано: 87 фраз, суммарный объём 214 300/мес

### Коммерческие (топ)
| Фраза | Объём/мес | Сезонный пик |
|-------|-----------|--------------|
| доставка цветов москва | 40 200 | март (8×) |
| заказать цветы с доставкой | 18 400 | март |

### Информационные
| как выбрать букет | 3 100 | — |

**Сезонность ядра**: пик 6-8 марта, провал июль-август.

Важно

  • wordstat_dynamics работает только для высокочастотных фраз (>10 000 запросов/мес). Для остальных — только wordstat_top_requests.
  • Объёмы Wordstat — это показы, а не переходы. Не выдавай их за трафик.
  • Каждый вызов расходует квоту Yandex Cloud Search API. Не гоняй все 87 фраз через wordstat_dynamics — только те, что реально несут бюджет.

Примеры

/semantic-core доставка цветов
/semantic-core "мебель на заказ", "кухни на заказ"
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 6d ago First seen · 56 lines · 24 tokens per session scan A 14a31886ff54

Subscribe to this mod's changes

semantic-core is a skill published in the GitHub repository theYahia/WWmcp (29 stars, last pushed 5d ago), licensed MIT. It adds 24 tokens to every session and 636 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-06.

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