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Browse reusable Agent Skills, each with a clear purpose and practical guidance.

cpp-server

SpacetimeDB C++ server module SDK reference. Use when writing tables, reducers, or module logic in C++.

24.79k repo starsObserved in 3 repos
Development

rust-server

SpacetimeDB Rust server module SDK reference. Use when writing tables, reducers, or module logic in Rust.

24.79k repo starsObserved in 1 repos
Development

unreal

SpacetimeDB Unreal Engine client SDK reference. Use when building Unreal Engine clients that connect to SpacetimeDB.

24.79k repo starsObserved in 1 repos
Development

gitlab-coding-principles

MUST USE before planning, implementing, refactoring, OR reviewing any GitLab code changes (including merge request reviews, code review feedback, new features, bug fixes). Evaluate every principle group to ensure cross-domain coverage. Triggers: review, reviewing, plan, planning, implement, implementing, refactor, refactoring, MR review, code review.

24.58k repo starsObserved in 1 repos
Testing & Quality

glab

GitLab workflow automation using glab CLI

24.58k repo starsObserved in 1 repos
Apps & Automation

split-mr

Analyze the changes on the current branch — both uncommitted work and commits already made (e.g. a PoC or existing MR) — and reason about whether they should be split into smaller, more focused MRs. Identifies natural boundaries (backend/frontend, model/spec, feature/refactor) and proposes a split plan or confirms the changes are cohesive enough to keep as one.

24.58k repo starsObserved in 1 repos
Productivity

cmux-testing

cmux testing rules for Swift Testing, test target compilation, and package/refactor validation. Use when adding or changing tests, touching package/refactor code, or deciding whether reload.sh is enough validation.

24.55k repo starsObserved in 1 repos
Testing & Quality

chromevox-debugging-on-chromebook

Toggle ChromeVox screen reader on ChromeOS devices and send raw keyboard input events. Use when debugging accessibility features on an external ChromeOS device, needing to enable or disable ChromeVox, or sending specific keys to the system via SSH.

24.24k repo starsObserved in 2 repos
Apps & Automation

create-web-applications-unittest

Instructions for creating a unit test in the chrome/browser/web_applications and chrome/browser/ui/web_applications directories.

24.24k repo starsObserved in 2 repos
Testing & Quality

fuzzing

Implements, registers, and verifies fuzz tests in Chromium. Use when the user asks to add or write fuzzers in C++, or mentions fuzz testing or FUZZ_TEST.

24.24k repo starsObserved in 2 repos
Testing & Quality