Estimate whether text (or a web page's text) is AI-written, with signals and confidence band

Strip scripts/styles and return readable text or markdown from HTML.

Deterministic nested JSON to flat path-value map. Arrays, custom separators, depth limits.

Cheap schema gate: type, required, properties, array items.

Recursively sort object keys and return canonical compact JSON. Deterministic, no network.

Deterministic term ranking from free text. Stopword-filtered.

Taking messy data, making it agent-kind — swarm packages eval sets and RAG chunks

Resolves one public name on Wikidata and returns a relationship graph from a fixed property list (instance of, country, headquarters, founder, chief executive, ownership, employer, education, membership, and similar), up to two hops. People include only notable public roles. If nothing matches, the graph is empty and reason explains why.

Searches Wikipedia (opensearch + full-text), Hacker News, and DuckDuckGo when reachable, fetches the top public pages, and returns a cited answer from those pages. Uses extractive sentences, or an OpenRouter model when OPENROUTER_API_KEY is set. Returns no sources and a reason if nothing could be fetched.

Fetches a URL and returns an on-page SEO score from real checks (title, meta, headings, alt text, keywords, and more). If the page cannot be fetched, score is null and reason says why.

Hash a string with SHA-256 and return hex plus a short prefix. Deterministic, no network.

Turn free text into a URL-safe lowercase slug. Deterministic, no network.

Lightweight deterministic line/word/char diff. Structured ops or unified output.

Approximate cl100k/o200k token counts for budget decisions.

Canonicalize URLs: strip tracking params, force HTTPS, sort query, extract components.

Mint 1-32 UUID v4 (or v1) identifiers for agent job IDs and idempotency keys.