Systematically finds and fixes performance bottlenecks by measuring first, profiling hot paths, reducing algorithmic and I/O cost, and verifying gains with before/after benchmarks. Use this skill when code, an endpoint, a page, a query, or a job is "slow", "laggy", "timing out", "using too much CPU/memory", or "doesn't scale"; when asked to optimize, speed up, profile, or benchmark something; when chasing high latency / low throughput, p99 spikes, memory leaks, N+1 queries, or excessive allocations; or before/after a perf-sensitive change to prove it actually helped. Covers Python, Node/JS, Go, Java, SQL, and HTTP/web frontends.
125mo agoReviewMountCreate a free account to mount
Builds a realistic personal or household budget from income and expenses — choosing a budgeting method (50/30/20, zero-based, envelopes), categorizing spending, setting savings and debt-payoff targets, and producing a monthly plan with an emergency-fund and debt strategy. Use this skill when a user asks to "make me a budget", "help me manage my money", "where is my money going", "save more / pay off debt", "monthly budget", or wants a household spending plan.
125mo agoReviewMountCreate a free account to mount
Outlines compelling presentations built around a single core message, a clear narrative arc, one idea per slide, and concrete speaker notes. Use this skill when the user wants to create, outline, structure, or improve a slide deck, talk, pitch, keynote, conference presentation, sales demo, lecture, or any "build me slides / a presentation / a pitch deck" request — including requests like "turn this doc into slides", "help me prepare a talk", "make a deck about X", or "tighten my presentation".
125mo agoReviewMountCreate a free account to mount
Decomposes a goal into a work breakdown structure (WBS) with milestones, task dependencies, and effort estimates, then produces a schedule, critical path, and risk list. Use this skill when the user wants to plan a project, "break this down into tasks", build a work breakdown structure, create a project plan or roadmap, estimate effort/timeline, identify dependencies or the critical path, sequence work, or turn a goal/spec into an actionable, scheduled task list.
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Designs, refines, and systematically evaluates LLM prompts using structure, role framing, few-shot examples, explicit output contracts, and reasoning scaffolds. Use this skill when the user wants to write or improve a prompt, build a system prompt, craft few-shot examples, reduce hallucination or refusals, enforce a JSON/structured output, design an LLM-as-judge or eval rubric, debug inconsistent or low-quality model outputs, or compare prompt variants ("optimize this prompt", "why is the model ignoring my instructions", "make it return valid JSON", "write a prompt that...", "evaluate these prompts").
125mo agoReviewMountCreate a free account to mount
Edits prose for grammar, spelling, punctuation, clarity, concision, and consistent style while preserving the author's meaning, voice, and intent. Use this skill when the user asks to proofread, copyedit, polish, clean up, tighten, fix grammar in, or improve the readability of text such as emails, essays, blog posts, documentation, cover letters, reports, or marketing copy. Triggers include "proofread this", "fix the grammar", "edit for clarity", "make this more concise", "check my writing", "copyedit", or "tighten this up".
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Coaches a speaker to prepare and deliver a talk, presentation, toast, or pitch — shaping a core message and narrative arc, structuring the talk, writing a strong open and close, tightening delivery, and managing nerves and Q&A. Use this skill when a user asks to "help me with a speech", "prepare a talk/presentation", "write a toast / wedding speech / eulogy", "practice my pitch", "manage public-speaking anxiety", or wants feedback on a draft talk.
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Designs end-to-end retrieval-augmented generation (RAG) systems by making principled choices for chunking, embeddings, vector indexing, retrieval, reranking, prompt assembly, and offline evaluation. Use this skill when the user wants to build or improve a RAG pipeline, asks about chunking strategy, embedding model selection, hybrid search, reranking, "my retrieval is bad / hallucinating / missing context", chunk size tuning, vector database choice, or how to measure retrieval quality (recall@k, MRR, nDCG, faithfulness).
125mo agoReviewMountCreate a free account to mount
Generates polished, well-structured project READMEs with badges, a one-line tagline, quick-start, installation, usage examples, configuration tables, contribution guidelines, and a license section. Use this skill when the user asks to "write a README", "generate a README", "create README.md", "improve my README", "add badges", "document my project", "make a project description", or wants onboarding/landing-page docs for a library, CLI, web app, API, or repo.
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Applies safe, incremental, behavior-preserving refactorings (extract function/variable, rename, inline, decompose conditionals, remove duplication, replace conditional with polymorphism, introduce parameter object) using a test-protected, small-step workflow. Use this skill when the user asks to "refactor", "clean up", "simplify", "extract a method/function", "rename", "remove duplication", "reduce nesting", "break up a god class/long function", "improve readability", "untangle" code, "make this testable", "reduce complexity", or "tidy up" without changing what the code does. Covers code smell detection, choosing the right refactoring, and verifying behavior is unchanged.
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Designs, explains, hardens, and tests regular expressions for parsing and validation tasks (emails, URLs, dates, IPs, log lines, CSV fields, identifiers, etc.) while actively defending against catastrophic backtracking (ReDoS). Use this skill when the user asks to "write a regex", "build/fix a regular expression", "match/extract/validate X with regex", "explain this regex", "why is my regex slow/hanging", check for "ReDoS"/"catastrophic backtracking", or convert a pattern between flavors (PCRE, Python re, JavaScript, Java, Go RE2, .NET). Covers capturing/named groups, anchors, lookarounds, Unicode, and flavor portability.
125mo agoReviewMountCreate a free account to mount
Transforms merged pull requests, commit logs, and changelog entries into clear, user-facing release notes grouped into Features, Improvements, Bug Fixes, and Breaking Changes. Use this skill when asked to "write release notes", "draft a changelog", "summarize this release", "turn these PRs/commits into release notes", "prepare the v1.2 release announcement", or to convert a list of merged changes into a polished, audience-appropriate notes document.
125mo agoReviewMountCreate a free account to mount
Writes and rewrites high-impact resumes and CVs that pass ATS screening and win recruiter attention — translating raw work history into quantified, outcome-driven bullet points, choosing the right format, and tailoring to a target role. Use this skill when a user asks to "write my resume", "fix my CV", "make my resume ATS-friendly", "tailor my resume to this job", "turn my experience into bullet points", or wants help with a professional summary, skills section, or resume formatting.
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Coaches a candidate or employee through compensation negotiation — researching market ranges, anchoring, countering an offer, negotiating the full package (base, bonus, equity, signing, benefits), and scripting the conversation. Use this skill when a user asks to "negotiate my salary", "I got a job offer, what do I say", "counter this offer", "ask for a raise", "how much should I ask for", or wants email/script wording for a comp conversation.
125mo agoReviewMountCreate a free account to mount
Defines modern authentication and password policies aligned with NIST SP 800-63B, covering minimum length, blocklist/breach screening, rate limiting, MFA, password storage hashing, and account recovery. Use this skill when asked to "write a password policy", "review our authentication requirements", "implement NIST 800-63B", "decide password complexity rules", "configure password hashing", "set up MFA requirements", or audit an existing login/signup flow for security.
125mo agoReviewMountCreate a free account to mount
Audits source code against the OWASP Top 10 (2021) and produces concrete, exploitable findings with proof-of-concept, severity ratings, and copy-pasteable fixes. Use this skill when the user asks to "do a security review", "audit this code for vulnerabilities", "check for OWASP Top 10 issues", "find security bugs", "is this code safe", "review for injection/XSS/SSRF/auth flaws", or before shipping security-sensitive code.
125mo agoReviewMountCreate a free account to mount
Use this skill when the user needs X or Twitter social data extraction, tweet search, profile and follower lookup, media download, webhook monitoring, MCP setup, or REST API integration with Xquik and the x-developer skill package.
125mo agoReviewMountCreate a free account to mount
Diagnoses and fixes slow SQL queries using EXPLAIN/EXPLAIN ANALYZE plan reading, index design, query rewrites, statistics, and schema-aware tuning across PostgreSQL, MySQL/MariaDB, SQL Server, Oracle, and SQLite. Use this skill when a user says a query is slow, times out, "takes forever", needs an index, asks to "optimize this SQL", "why is this query slow", "read this EXPLAIN plan", "add an index", "reduce query cost", "fix a full table scan / seq scan", "N+1 query", "tune the database", or pastes a query plan and asks what is wrong.
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Designs normalized relational database schemas with primary/foreign keys, constraints, indexes, and deliberate denormalization, producing engine-aware DDL and an ER model. Use this skill when the user asks to design a database schema, model entities and relationships, normalize tables, fix update/insert/delete anomalies, choose data types and keys, add constraints or indexes, write CREATE TABLE DDL, or review/refactor an existing schema for PostgreSQL, MySQL, SQLite, or SQL Server.
125mo agoReviewMountCreate a free account to mount
Builds a realistic, personalized learning roadmap for a skill or subject — with milestones, curated resource types, active practice, spaced review, and progress checkpoints — fit to the learner's deadline and weekly time budget. Use this skill when the user asks to "make a study plan", "create a learning roadmap", "help me learn X in N weeks", "plan how to study for an exam", "build a curriculum", or wants a structured path to master a topic. Grounded in learning-science principles (spacing, retrieval, interleaving).
125mo agoReviewMountCreate a free account to mount
Plain text files in a repository that tell a coding agent how the project works: commands to run, conventions to follow and things to avoid. CLAUDE.md, AGENTS.md, cursor rules and skills are the common kinds.
CLAUDE.md or AGENTS.md?
CLAUDE.md is read by Claude Code. AGENTS.md is an open format that Codex, Cursor and other agents read. Many projects keep one and point the other at it.
What is a skill?
A folder with a SKILL.md that describes one capability, such as filling PDFs or reviewing code. The agent loads it only when the task calls for it.
Can I search my own team's files too?
Your agents already can, over MCP, limited to the files you're allowed to read. Searching them from this page is coming.
JayRHaSkill