# mauricioperera.github.io > Mauricio Perera's GitHub Pages site. Publishes an executable static skill > (site_facts) per the llms-txt-skills standard, plus skills aggregated from > project sites on this origin — KDD under the `kdd` scope (Executable > Skills v0.5 §2.5). ## Skills - [site_facts](/skills/site_facts/SKILL.md): Return static facts about this site (owner, topics, skill count) from /facts.json. - [validate_skill_line](/llms-txt-skills/skills/validate_skill_line/SKILL.md): validate a single '## Skills' bullet line against the standard before publishing it. - [search_knowledge](/llms-txt-skills/skills/search_knowledge/SKILL.md): BM25 search over this origin's published knowledge bundle. Use it to find which concept answers a question before fetching it. - [list_concepts](/llms-txt-skills/skills/list_concepts/SKILL.md): list every knowledge concept this origin publishes (id, type, title, description). - [search_knowledge](/KDD/skills/search_knowledge/SKILL.md): BM25 search over the KDD (Knowledge Driven Development) knowledge bundle. Use it to find which concept answers a question before fetching it. - [list_concepts](/KDD/skills/list_concepts/SKILL.md): list every KDD knowledge concept (id, type, title, description). - [search_knowledge](/llms-skills-registry/skills/search_knowledge/SKILL.md): BM25 search over the publisher REGISTRY - find which origins publish skills about a topic. - [list_concepts](/llms-skills-registry/skills/list_concepts/SKILL.md): list every registered publisher origin (id, type, title, description). - [authenticate](/auth.md): How agents authenticate with this origin — none required (public, read-only); the manifest follows the auth.md protocol shape and shows how it composes with ## Skills.