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πŸ€– Awesome GitHub Copilot for Testers

This repository is a collection of resources (prompts, instructions, custom agents, agent skills, hooks, plugins, and orchestration examples) for using GitHub Copilot to enhance test automation and quality engineering workflows.

It is designed to help testers, developers, and quality engineers leverage AI to improve their testing practices, automate repetitive tasks, and enhance the overall quality of software products.

Tip

πŸ’‘ Choose your language:

Tip

This project is heavily inspired by Awesome GitHub Copilot - a curated list of resources for using GitHub Copilot effectively. We have adapted the structure and content to focus specifically on testing and quality engineering, providing tailored resources for this domain.

Table of Contents

Important

Check out our free YouTube video to learn more about GitHub Copilot Chat Modes:

GitHub Copilot - Chat Modes

🎯 GitHub Copilot Customization Features

GitHub Copilot provides three main ways to customize AI responses and tailor assistance to your specific workflows, team guidelines, and project requirements:

  • Custom Instructions: Define how Copilot should behave, what to prioritize, and how to communicate.
  • Chat Modes: Create specialized chat modes for different roles or tasks, each with its own set of tools and instructions. With version 1.106 of VS Code, Chat Modes were renamed to Custom Agents.
  • Custom Agents: Advanced chat modes that can utilize multiple instructions and tools to perform complex tasks.
  • Prompt Templates: Predefined templates for common tasks or questions, allowing for quick and consistent responses.

Tip

More You can learn about these features in the official documentation and:

Tip

Do you want to learn more about effective use of AI and GitHub Copilot for Testers?

Check our AI_Testers Program - a comprehensive Program for mastering AI in test automation!

AI Testers Logo

πŸ“‹ Resources

Custom Instructions

Tip

Usage:

  • copy these instructions to your .github/copilot-instructions.md file or
  • create task-specific .github/.instructions.md files in your workspace's .github/instructions folder
  • use Chat: Attach Instructions command from the command palette to apply them in the current chat
Title Description Install
πŸ€– Custom Instructions for Testers One-line intent of the rules Install in VS Code Install in VS Code
API test rules (Playwright + TypeScript) API test rules for Playwright + TypeScript: HTTP semantics, contract assertions, typed clients, data isolation, and flakiness prevention. Install in VS Code Install in VS Code
Commit trailer rules Grammar and enforcement rules for Intent, Intent-Ref, Assisted-by and Comprehension-Attested-by commit trailers: when each is required, how they are validated, and which enforcement layer they belong in. Install in VS Code Install in VS Code
Playwright E2E rules Playwright E2E test rules: test intent, isolation, locator strategy, waiting discipline, flake prevention, and diagnostics. Install in VS Code Install in VS Code
LLM eval rules Rules for LLM eval suites and prompt files: golden-case discipline, pinned determinism, cheapest-scoring-first, judge rubrics, regression gating against a baseline, and cost control. Install in VS Code Install in VS Code
Page Objects / App Actions rules (Playwright + TS) Page Object Model conventions for Playwright + TypeScript: structure, locators, actions, waits, and composition rules. Install in VS Code Install in VS Code
Playwright Typescript Playwright test generation instructions with best practices and patterns. Install in VS Code Install in VS Code
Quality gate workflow rules Rules for CI quality gates: gate layers, no swallowed failures, soft gates expressed as soft gates, diff-scoped checks, required-check wiring, and sticky PR reporting. Install in VS Code Install in VS Code
TypeScript style rules TypeScript style rules: explicit types at API boundaries, typed errors, import hygiene, and async conventions. Install in VS Code Install in VS Code

Custom Prompt Templates

Tip

Usage:

  • copy these prompts to your .github/copilot-prompts/ folder
  • use /prompt-name in VS Code chat,
  • run Chat: Run Prompt command from the command palette
Title Description Install
Accessibility audit - deep dive Run a deeper accessibility audit for a page, sampled set of pages, or user flow with WCAG 2.2 mapping, manual verification guidance, and technical or stakeholder-ready output. For a quick single-URL check, use the a11y-webpage-audit prompt instead. Install in VS Code Install in VS Code
A11y webpage audit (single URL) Analyze one webpage for accessibility with WCAG 2.1/2.2 mapping and actionable fixes. Quick single-URL audit; use the a11y-audit-deep-dive prompt for multi-page flows and stakeholder-ready reporting. Install in VS Code Install in VS Code
Analyze test results Turn raw test run output - a CI log, JUnit/Playwright report, or console output - into an actionable summary: failure clusters, likely root-cause groups, flakiness suspects, and what to investigate first. Install in VS Code Install in VS Code
API test plan and test generator Create a risk-based API test plan and generate example automated tests from API definitions (OpenAPI/Postman/custom docs). API-focused end-to-end flow: plan first, then tests. Install in VS Code Install in VS Code
Audit quality debt and silent skips Audits the three debts - technical, intent and comprehension - and inventories every silent skip in the repo: skipped tests, disabled lint rules, ts-expect-error, continue-on-error, coverage ignores, lowered thresholds, raised retries and expired waivers. Install in VS Code Install in VS Code
Create a bug report Turn rough tester notes, screenshots, logs, or observed behavior into a professional bug report with severity, reproducibility, and evidence guidance. Install in VS Code Install in VS Code
Create a new skill Create a new skill (SKILL.md) for VS Code Copilot. Analyzes existing skills for patterns, guides through design decisions, creates the skill file with supporting resources, and validates against best practices. Install in VS Code Install in VS Code
Derive a quality contract Derives which testing practices are MUST, SHOULD or COULD for this specific project from its risk profile, team maturity and product surfaces, then reports a PRESENT/PARTIAL/MISSING/WAIVED gap matrix and an ordered remediation plan. Install in VS Code Install in VS Code
Derive test cases from code Read a function, module, or diff and derive white-box test cases from its actual branches, boundaries, and error paths - then compare against existing tests to expose coverage gaps. Install in VS Code Install in VS Code
Design an LLM eval suite Designs and implements an offline eval suite for an LLM feature: golden, edge and negative cases per prompt template, the cheapest scoring strategy that can actually fail, pinned determinism, a regression gate against a committed baseline, and the CI job that runs it. Install in VS Code Install in VS Code
Analyze and explain code Analyze and explain the selected code, the active file, or a provided snippet: purpose, structure, patterns, risks, and what a tester should verify Install in VS Code Install in VS Code
Explain a test failure Diagnose a failing test from an error message, stack trace, CI log, or trace file: classify the root cause as app defect, test bug, environment issue, or flakiness - without changing any code. Use the fix-tests prompt when you want the failure fixed. Install in VS Code Install in VS Code
Fix failing tests Diagnose and fix failing tests by addressing root causes, without weakening assertions or masking defects Install in VS Code Install in VS Code
Generate exploratory testing charters Create prioritized, timeboxed exploratory testing session charters from a feature description, release notes, or live app exploration - with risk focus, test ideas, and oracle notes for each session. Install in VS Code Install in VS Code
Generate Gherkin scenarios Convert a user story, acceptance criteria, or feature description into well-formed Gherkin scenarios (Given/When/Then) with scenario outlines for data variations, ready for BDD frameworks like Cucumber or Playwright-BDD. Install in VS Code Install in VS Code
Generate test data Design realistic and edge-covering test data packs from requirements, constraints, or existing test plans for manual and automated testing. Install in VS Code Install in VS Code
Generate manual test cases Turn a feature description, acceptance criteria, exploratory notes, or a test plan into detailed manual test cases with risk tags, expected results, and automation hints. Install in VS Code Install in VS Code
Map requirements to test coverage Build a Requirements Traceability Matrix from a PRD, user stories, or acceptance criteria against existing tests: what is covered, at which level, what is missing, and which gaps carry the most risk. Install in VS Code Install in VS Code
Migrate tests to Playwright Migrate existing UI tests from Cypress, Selenium, Puppeteer, or Protractor to Playwright while preserving coverage: translate idioms to Playwright best practices, run both suites where possible, and report an honest migration status per test. Install in VS Code Install in VS Code
Performance and reliability test planner Design a performance and reliability test strategy and propose concrete load/soak tests for critical user flows. Install in VS Code Install in VS Code
Explore a website and gather network requests using Playwright MCP Explore a website with Playwright MCP while capturing network requests and responses. Use the playwright-explore-website prompt instead when network traffic is not needed. Install in VS Code Install in VS Code
Explore a website and propose test cases Explore a website with Playwright MCP and propose test cases. Use the playwright-explore-website-requests prompt instead when network traffic should also be captured. Install in VS Code Install in VS Code
Generate tests based on a scenario using Playwright MCP Generate a Playwright test from a scenario description by first executing it live via Playwright MCP. Use the test-generator prompt instead when generating from a written test plan file. Install in VS Code Install in VS Code
QA strategy - edge cases, security and attack scenarios For any feature, user story, or API spec: instantly generate a structured scenario matrix covering edge cases, boundary values, OWASP Top 10 security attacks, and adversarial sequences. Install in VS Code Install in VS Code
Record the intent behind a change Finds the high-risk surface in a change range, checks whether a rationale already exists in commit trailers, ADRs or a module intent register, and drafts an Intent trailer for the author to confirm - why now, what constrained the shape, what was rejected. Install in VS Code Install in VS Code
Refactor tests to page objects Refactor UI test specs into a clean Page Object Model without changing what the tests verify: extract locators and actions, keep assertions in tests, and prove behavior is unchanged by rerunning the suite. Install in VS Code Install in VS Code
Analyze regression scope Turn a diff, PR summary, changed files, or hotfix description into a prioritized regression scope with a minimal confidence suite and retest guidance. Install in VS Code Install in VS Code
Review requirements for testability Review a user story, PRD, or acceptance criteria for ambiguity, missing states, and untestable statements - before implementation starts. Produces concrete clarifying questions and rewritten, testable acceptance criteria. Install in VS Code Install in VS Code
Scope and gate this change Tags a diff into file and hunk tags, resolves which quality practices the change makes relevant, verifies diff coverage and intent rationale, and returns severity-ranked findings with implementable remediation briefs. Install in VS Code Install in VS Code
Stabilize flaky tests Hunt down intermittently failing tests, classify the flakiness root cause (timing, environment, data, state leakage), fix it properly, and prove stability with repeated runs. Use the fix-tests prompt for tests that fail consistently. Install in VS Code Install in VS Code
Tech debt audit - test automation code review Ruthlessly audit automated test code for anti-patterns: fragile selectors, hardcoded waits, missing assertions, test interdependencies, credential leaks, and more. Produces a severity-ranked debt report with line-level citations and concrete fixes. Install in VS Code Install in VS Code
Generate tests based on test plan Generate automated tests from a written test plan file, matching the project's existing framework. Use the playwright-generate-test prompt instead when starting from a scenario description. Install in VS Code Install in VS Code
Test LLM guardrails and injection resistance Maps the trust boundaries of an LLM feature, tests the runtime guardrails around model output - schema, PII, moderation, rendering, tool authorization, resource caps, fail-closed behaviour - and runs an adversarial corpus through every content channel including retrieval and tool results. Install in VS Code Install in VS Code
Generate a basic test plan Generate a quick, single-pass test plan for a website from light exploration. Use the test-planner prompt for a comprehensive, interactive plan covering web and API. Install in VS Code Install in VS Code
Generate a comprehensive test plan Collects environment details and produces a prioritized test plan with web and API scenarios. Use the test-plan-basic prompt for a quick single-pass plan without deep exploration. Install in VS Code Install in VS Code
Verify acceptance criteria Compare implementation evidence against acceptance criteria and show what is met, partial, missing, or still untestable. Install in VS Code Install in VS Code

Custom Chat Modes (Deprecated)

Tip

Usage (in VS Code prior to version 1.106):

  • create new chat modes:
    • using the command Chat: Configure Chat Modes... or
    • from set mode menu Agent -> Configure Modes,
  • then switch your chat mode in the Chat input from set mode menu Agent -> Configure Modes

Warning

With version 1.106 of VS Code, Chat Modes were renamed to Custom Agents. They contain .agent.md suffix and should be stored in the .github/agents/ The chat mode files below are now deprecation stubs that link to their custom agent replacements.

Title Description Install
Accessibility Expert mode (Deprecated) (Deprecated) Chat modes were replaced by custom agents in VS Code 1.106. Use the accessibility custom agent instead. Install in VS Code Install in VS Code
Playwright Automation Engineer (TypeScript) mode (detailed) (Deprecated) (Deprecated) Chat modes were replaced by custom agents in VS Code 1.106. Use the playwright-expert-detailed custom agent instead. Install in VS Code Install in VS Code
Playwright Automation Engineer (TypeScript) mode (Deprecated) (Deprecated) Chat modes were replaced by custom agents in VS Code 1.106. Use the playwright-expert custom agent instead. Install in VS Code Install in VS Code
QA Strategist - Edge Cases, Security & Attacks (Deprecated) (Deprecated) Chat modes were replaced by custom agents in VS Code 1.106. Use the qa-strategist custom agent instead. Install in VS Code Install in VS Code
Tech Debt Auditor - Test Automation Code Reviewer (Deprecated) (Deprecated) Chat modes were replaced by custom agents in VS Code 1.106. Use the tech-debt-auditor custom agent instead. Install in VS Code Install in VS Code
Test Automation Architect (Deprecated) (Deprecated) Chat modes were replaced by custom agents in VS Code 1.106. Use the test-automation-expert custom agent instead. Install in VS Code Install in VS Code
Test Planner (Deprecated) (Deprecated) Chat modes were replaced by custom agents in VS Code 1.106. Use the test-planner custom agent instead. Install in VS Code Install in VS Code

Custom Agents

Tip

Usage:

  • create new agents:
    • using the command Chat: Configure Custom Agents... or
    • from set mode menu Agent -> Configure Custom Agents,
  • then switch your agent in the Chat input from set mode menu Agent -> <Custom Agent Name>
Title Description Install
Accessibility Expert A specialized Agent focused on ensuring all code adheres to WCAG 2.1 accessibility standards. Install in VS Code Install in VS Code
API Test Automation (from OpenAPI spec) Generate REST API tests from an OpenAPI spec (language/framework provided by the user). Install in VS Code Install in VS Code
Change Gate Reviewer - scope, verify, brief Reviews a single diff against the project quality contract: tags the change, scopes only the practices the change makes relevant, verifies diff coverage, checks that high-risk surface carries a recorded rationale, and returns severity-ranked findings with remediation briefs. Use before committing, pushing or opening a PR, and on any change that touches public surface, auth, migrations, prompts or dependencies. Install in VS Code Install in VS Code
LLM Feature Test Engineer - evals, guardrails, red team Designs and implements eval suites, runtime guardrail tests and adversarial prompt-injection suites for LLM-powered features, then wires the regression gate into CI. Use when a product ships prompts, agents or RAG and its quality is currently verified by eyeballing output, when a model or prompt upgrade needs a regression check, or when an AI feature is about to reach real users. Install in VS Code Install in VS Code
Openapi Test Automation Expert Generates and maintains automated tests driven by an OpenAPI/Swagger schema (contract + behavior) and supports testers with automation best practices. For general API test generation without a spec, use the api-test-automation agent. Install in VS Code Install in VS Code
Playwright Automation Engineer Ts Detailed Provide expert guidance, code, and troubleshooting help for end-to-end and component-level test automation using Playwright with TypeScript. Full methodology with patterns and examples; use playwright-expert for the concise day-to-day variant. Install in VS Code Install in VS Code
Playwright Automation Engineer Ts Provide expert guidance, code, and troubleshooting help for end-to-end and component-level test automation using Playwright with TypeScript. Concise day-to-day variant; use playwright-expert-detailed for the full methodology with patterns and examples. Install in VS Code Install in VS Code
Qa Strategist Kills happy-path thinking. For every feature, spec, or user story the agent immediately surfaces edge cases, boundary values, security attacks (OWASP Top 10), and adversarial scenarios before a single line of test code is written. Install in VS Code Install in VS Code
Quality Contract Architect - derive, then enforce Derives and maintains a project quality contract - which testing practices are mandatory for this risk profile, maturity level and product surface - then reports the gap between the contract and reality with an ordered remediation plan. Use when a project needs an evidence-derived testing strategy instead of a wish list, when a team argues about which practices are required, or when a legacy repo needs an honest quality baseline. Install in VS Code Install in VS Code
Quality Debt Auditor - technical, intent, comprehension Audits the three debts across a repository: technical (practices the contract requires but the repo lacks), intent (high-risk changes with no recorded rationale) and comprehension (code shipped that nobody has attested to understanding), plus the silent skips that hide all three. Use for a quarterly quality review, before taking over an unfamiliar codebase, or when an AI-heavy repo is outgrowing the team that maintains it. Install in VS Code Install in VS Code
Rubber Duck 2.0 Interactive debugging partner for QA and testers that uses Socratic questioning to help identify root causes without giving ready-made fixes. Install in VS Code Install in VS Code
Tech Debt Auditor Audits the repo for technical debt, quantifies impact/risk, and produces a prioritized remediation plan with small, safe PR-sized recommendations. Install in VS Code Install in VS Code
Test Automation Expert Help engineers craft robust, fast, and maintainable automated tests that deliver actionable feedback and integrate seamlessly into modern SDLC pipelines. Install in VS Code Install in VS Code
Test Code Reviewer - Test Automation Anti-Pattern Hunter A ruthless, opinionated code reviewer for automated test suites. Hunts down anti-patterns, tech debt, and bad practices in test code - from fragile selectors and hardcoded waits to test interdependencies, weak assertions, and credential leaks. For repository-wide technical debt audits, use the tech-debt-auditor agent instead. Install in VS Code Install in VS Code
Test Planner An expert QA test planner agent that explores web applications and APIs to create comprehensive, risk-prioritized test plans. Install in VS Code Install in VS Code
UI Test Automation This custom agent creates and maintains Playwright tests for UI automation. Used in courses from AI_Testers (courses about test automation for UI and REST API with AI). Install in VS Code Install in VS Code

Agent Orchestration

Tip

Usage: Just pick an agent set and install the agents you want to orchestrate together, then switch to main agent from the set and start chatting. The agents will automatically trigger each other based on the defined orchestration flow.

Docs:

Contains 4 agents.

Title Description Install
Analyst Analyst: pattern analysis, risk assessment, and insight generation Install in VS Code Install in VS Code
Explorer Explorer: fast read-only codebase mapping and pattern discovery Install in VS Code Install in VS Code
Orchestrator Orchestrator: multi-agent conductor with explicit stop gates Install in VS Code Install in VS Code
Planner Planner: research-driven phased plan with test strategy and risks Install in VS Code Install in VS Code

Contains 10 agents.

Title Description Install
Architect Subagent Architect: ADR-ready trade-offs, NFR impacts, threat models, and test implications Install in VS Code Install in VS Code
Code Review Subagent Code review: correctness, risks, security, tests, and regressions (no fixes) Install in VS Code Install in VS Code
Docs Writer Subagent Docs: README updates, usage examples, API docs, and release notes – copy-paste ready Install in VS Code Install in VS Code
Explorer Subagent Explorer: fast read-only map of files, usages, patterns, and entry points Install in VS Code Install in VS Code
Implementer Subagent Implementer: TDD-first phase delivery with minimal diffs and quality gates Install in VS Code Install in VS Code
Orchestrator Agent Orchestrator: multi-agent lifecycle with explicit stop gates Install in VS Code Install in VS Code
Planner Agent Planner: research-driven phased plan with tests and NFRs Install in VS Code Install in VS Code
QA Strategy Subagent QA strategy: test pyramid, coverage goals, quality gates, and flakiness mitigation Install in VS Code Install in VS Code
Researcher Subagent Researcher: extract conventions, key files, patterns, and examples at scale Install in VS Code Install in VS Code
Security Auditor Subagent Security audit: threat model, risk scan, OWASP mapping, and concrete mitigations Install in VS Code Install in VS Code

Contains 8 agents.

Title Description Install
OpenAPI Explorer Analyze OpenAPI/Swagger spec and produce an API inventory + test matrix. Install in VS Code Install in VS Code
BE Test Implementer Implement backend/API tests from the OpenAPI-driven matrix. Install in VS Code Install in VS Code
FE Explorer (Playwright MCP) Explore the frontend via Playwright MCP, map flows, suggest robust locator strategy and test targets. Install in VS Code Install in VS Code
FE Test Implementer Implement Playwright frontend tests following the provided plan and repo conventions. Install in VS Code Install in VS Code
QA Orchestrator Orchestrate subagents to design, implement, review and verify FE/BE tests (OpenAPI + Playwright MCP). Install in VS Code Install in VS Code
Solution Reviewer Review FE/BE tests for correctness, maintainability, flakiness, and alignment with the plan. Install in VS Code Install in VS Code
Test Planner Combine OpenAPI + FE exploration into a prioritized test plan with architecture and tasks. Install in VS Code Install in VS Code
Test Runner & Verifier Run test suites, diagnose failures, and verify the final solution end-to-end. Install in VS Code Install in VS Code

Contains 5 agents. Used in courses from AI_Testers (courses about test automation for UI and REST API with AI).

Title Description Install
Test Coder Agent (Minimal) A minimal agent that implements tests based on a provided test plan. It focuses on following best practices for test implementation. Install in VS Code Install in VS Code
Explorer Agent (Minimal) A minimal agent that explores the application and gathers information for test planning. It focuses on following best practices for exploration and data collection. Install in VS Code Install in VS Code
Test Planner (Minimal) Combine exploration into a prioritized test plan with architecture and tasks. Install in VS Code Install in VS Code
QA Orchestrator (Minimal) Orchestrate subagents to design, implement, review and verify FE/BE tests (OpenAPI + Playwright MCP). Install in VS Code Install in VS Code
Test Framework Starter Agent (Minimal) A minimal agent that sets up a test framework. Install in VS Code Install in VS Code

🎯 Quick Start: Using Orchestrator with Subagents

Once you've installed the agents, here are some example prompts to get started:

Example 1: Analyze a Feature for Tech Debt (Minimal Example)

@Orchestrator Analyze this codebase for technical debt and maintainability issues.

The Orchestrator will:

  1. Clarify your scope and constraints
  2. Invoke Explorer and Analyst in parallel to research the codebase
  3. Present findings and recommendations for your approval

Example 2: Plan an Implementation (Full Example)

@Orchestrator Plan implementing: Add real-time notifications to our API.
Constraints: Must be backward compatible, no database schema changes.

The Orchestrator will:

  1. Invoke Planner to create a phased implementation strategy
  2. Planner will invoke Explorer to map the codebase and Architect for trade-offs
  3. Present a complete plan with test strategy and risk mitigation

Example 3: Security Assessment

@Orchestrator Assess the security posture of our authentication system.

The Orchestrator will:

  1. Invoke Explorer to find all auth-related files
  2. Invoke Security-Auditor to analyze patterns and identify vulnerabilities
  3. Synthesize findings into actionable recommendations

Tip

For more detailed workflows and best practices, see the Minimal Agent Orchestration Example README

Custom Sets

Custom sets are combinations of custom instructions, prompt templates, and chat modes (or custom agents) designed for specific use cases.

Tip

Set elements work together to provide a tailored experience for specific testing scenarios. But you can also use them separately as needed.

Warning

Concept of Sets is not natively supported in VS Code Copilot.

Contains 1 prompt, 1 agent

Title Type Description Install
Edge Case Scenario Generator (BDD) Prompt Generates a complete, risk-based set of BDD test scenarios, focusing on edge cases, state validation, and boundary conditions. Install in VS Code Install in VS Code
AI Test Architect: Beyond Codegen 2.0 Strategy Agent Designs and oversees the implementation of the strategic, two-stage Beyond Codegen 2.0 test generation architecture. Install in VS Code Install in VS Code

A set of resources for AI Product QA - Resource Set

Title Type Description Install
No resources found

A set of resources for Quality Governance - Resource Set

Title Type Description Install
No resources found

A set of resources for Sdlc Qa

Title Type Description Install
No resources found

Agent Skills

Agent Skills are folders of instructions, scripts, and resources that GitHub Copilot can load when relevant to perform specialized tasks. Agent Skills is an open standard that works across multiple AI agents, including GitHub Copilot in VS Code, GitHub Copilot CLI, and GitHub Copilot coding agent.

Tip

Usage:

  • copy these skills to your .github/skills/ or .claude/skills/ folder

The correct folder structure is:

.github/
└── skills/
    └── <my-skill>/
        β”œβ”€β”€ SKILL.md
        └── resources/
            └── example.txt

where <my-skill> is the name of your skill. Name it after the activity it performs, preferably in gerund form, e.g. analyzing-regression-scope or auditing-accessibility (a few older skills predate this convention). The SKILL.md file contains the main instructions and logic for the skill, while the resources/ folder can contain any additional files needed for the skill's operation (e.g. templates, examples, reference materials).

Agents will automatically detect and load these skills if the agent finds them relevant to the current chat context (based on the skill's name and description).

Warning

Agent Skills are currently in preview and may require enabling experimental features in VS Code settings.

Title Description Install
analyzing-quality-metrics Defines, computes, and interprets test and quality metrics: pass rate, flake rate, suite duration, defect escape rate, time to detect, and coverage with its caveats. Use when building a QA dashboard, reporting suite health to stakeholders, comparing releases over time, or when a coverage percentage or a bug count is being treated as a measure of quality. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
analyzing-regression-scope Analyzes diffs, changed files, hotfixes, and release candidates to identify where regression risk spreads and what must be retested first. Use when scoping retest after a change, reviewing QA impact for a pull request, or building a minimal confidence suite for release validation. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
api-playwright-test-developer Writes and reviews API automation tests with Playwright Test, covering setup/teardown, assertions, data management, and hybrid API+UI flows. Use when creating backend API tests, contract checks, data-driven API coverage, API+UI hybrid workflows, or reviewing existing Playwright API suites. manual
assessing-comprehension-debt Measures the risk that code shipped without anyone understanding it: a teach-back attestation on high-risk changes, a risk band from changed-code complexity, diff size and whether a human explanation accompanied it, and optional AI-authorship provenance. Findings stay advisory by design. Use when an AI-assisted codebase grows faster than the team reads it, when reviews are rubber-stamped, when nobody can explain a module that ships weekly, or when leadership asks how much of the code the team can actually maintain. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
assessing-release-readiness Produces an evidence-backed go/no-go recommendation: exit criteria status, open-defect risk profile, coverage against risk, environment parity, rollback readiness, and the residual risk stated plainly. Use when preparing a release sign-off, when someone asks whether a build is ready to ship, or when a decision to release is being made on impressions rather than evidence. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
attesting-manual-verification Records human verification - code review, exploratory sessions, UAT, accessibility passes, UX and observability reviews - as dated, attributed attestations in a register, so human-centric practices stay in the quality contract without pretending to be automated checks. Use when a strategy requires verification no tool can prove, when sign-off evidence is scattered across chats and tickets, when a gap matrix needs to distinguish "attested" from "passed", or when an audit asks who verified what and when. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
auditing-accessibility Performs webpage and user-flow accessibility audits with WCAG 2.2 guidance, manual verification checklists, prioritized remediation output, and stakeholder-ready summaries. Use when auditing accessibility on a URL, triaging suspected a11y issues, or producing technical findings with practical next steps. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
code-review-advanced Performs evidence-driven code review for pull requests, legacy modules, and quality-critical changes. Use when reviewing complex or multi-file changes, test automation suites, architectural refactors, or hot paths that need analysis of correctness, maintainability, security, performance, test quality, and operability risks. Provides structured feedback with severity-ranked findings, actionable recommendations, and clear rationale. For a fast sanity check of a small diff or single file, use the code-review skill instead. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
code-review Performs a quick, lightweight review of a small diff or single file, giving concise feedback on correctness, readability, tests, and obvious risks. Use when the user asks for a fast sanity-check review of a small change. For test-automation suites, architectural refactors, security-sensitive paths, or multi-file reviews, use the code-review-advanced skill instead. manual
creating-custom-agents Creates GitHub Copilot custom agents (.agent.md) for VS Code. Use when defining a specialized agent role, selecting a minimal toolset, referencing supporting skills, or shipping install-ready agent examples with clear boundaries and collaboration rules. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
creating-hooks Creates GitHub Copilot hooks for VS Code using hooks.json, supporting scripts, and companion docs. Use when automating deterministic checks, pre/post tool policies, or reusable hook packs that need safe defaults, observability, and clear installation guidance. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
creating-instructions Creates GitHub Copilot instruction files for VS Code, including repository guidance and scoped .instructions.md rules. Use when encoding project conventions, choosing applyTo patterns, or shipping install-ready instruction examples with rationale and guardrails. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
creating-orchestration-packs Creates agent orchestration packs: cooperating .agent.md files with an orchestrator, subagents, matched handoffs, minimal tool grants, and a shared handoff packet contract. Use when one agent role is too broad for a job, when a workflow needs explore, plan, implement, review, and verify as separate roles, or when a pack fails the orchestration lint because a handoff target does not resolve. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
creating-plugins Packages repository skills as installable Copilot plugins: marketplace registration, plugin.json manifests, generated skill copies, and the sync check CI enforces. Use when bundling one or more skills for installation, when adding a plugin to the marketplace, or when npm run lint reports that a plugin copy has drifted from its source skill. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
creating-prompts Creates GitHub Copilot prompt files (.prompt.md) for VS Code. Use when building reusable workflow starters that route work to the right agent, collect the right inputs, and ship with install-ready templates, examples, and validation guidance. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
creating-skills Creates GitHub Copilot skills with reusable workflows, companion resources, and validation gates. Use when packaging repeatable expertise into a SKILL.md folder, deciding what belongs in the skill body versus resources, or producing install-ready skill examples for a team or collection. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
deriving-a-quality-contract Derives a project-specific quality contract from three axes - risk profile, team maturity, and product surface - labelling each testing practice MUST, SHOULD, or COULD, then produces a PRESENT/PARTIAL/MISSING/WAIVED gap matrix with an ordered remediation plan. Use when a project has no agreed testing strategy, when a team argues about which practices are mandatory, when onboarding a legacy or inherited repository, when a quality strategy document has to be derived from evidence instead of opinion, or when someone asks "what testing should we actually be doing here". πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
designing-functional-tests Designs risk-based functional test plans, manual test cases, regression slices, and automation handoff packs from requirements, URLs, or exploratory notes. Use when preparing manual QA coverage before automation, turning feature descriptions into scenario catalogs, or converting exploratory findings into structured test assets. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
designing-test-data Designs realistic, boundary-heavy, and role-aware test data packs for manual and automated testing. Use when a feature needs deliberate inputs and fixtures before execution, when edge-case values keep being improvised, or when automation needs stable example data with setup notes. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
documenting-test-suites Writes the documentation a test suite needs to be usable by someone who did not build it: run instructions, environment setup, tag glossary, ownership, fixture and data notes, and architecture decision records. Use when onboarding someone into a suite, when "how do I run these" keeps being asked, when a test architecture decision needs recording, or when a suite is inherited with no documentation. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
generating-quality-gate-workflows Generates the CI workflow that enforces a quality contract: layered jobs from fast local hooks to release gates, per-practice steps for JS/TS toolchains, diff-scoped checks, sticky PR reporting, required-check wiring, and a severity policy deciding what fails the build. Use when quality practices are agreed but not enforced, when CI runs everything on every commit, when a gate reports green while the check it runs cannot fail, or when a per-change gate needs to post findings on the pull request. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
governing-quality-waivers Turns "we will skip this check for now" into a dated, attributed, expiring waiver with a stated reason and owner, inventories the silent skips already hiding in a repo - skipped tests, disabled lint rules, ts-expect-error, continue-on-error, lowered thresholds, coverage ignores - and reports expired waivers as findings. Use when a team wants to bypass a quality gate, when skip lists and quarantined tests accumulate without owners, when an audit asks why a check is off, or when a repo needs to know what it has quietly stopped enforcing. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
handling-sensitive-test-data Keeps test data legally and operationally safe: classifies personal data, replaces production copies with synthetic or anonymized fixtures, manages secrets in local runs and CI, strips personal data from traces and HAR files, and sets retention rules. Use when tests run against a production data copy, when fixtures contain real names or emails, when a data protection review is coming, or when test artifacts might carry personal data into CI logs. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
migrating-tests-to-playwright Migrates Cypress, Selenium, WebdriverIO, or Protractor suites to Playwright in staged slices, each with a parity gate before the old test is deleted. Use when porting a legacy browser suite, when deciding which tests are not worth porting, when a half-finished migration has stalled with two suites running in parallel, or when a suite migration needs a plan before anyone starts translating files. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
mocking-network-and-time Decides what to fake and stubs it correctly: network interception with Playwright route or HAR replay, MSW handlers, fake clocks, and fixed timezones. Use when a test depends on a third party, when a date-sensitive test breaks overnight, when a suite is slow because it calls real services, or when a mocked test stays green while production is broken. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
planning-exploratory-testing Runs session-based exploratory testing: writes charters, timeboxes sessions, applies coverage heuristics and tours, captures notes as evidence, debriefs, and converts findings into bug reports and automation candidates. Use when a feature needs testing before requirements settle, when scripted cases keep passing while users hit problems, when a release needs a risk sweep with limited time, or when the request mentions charters or exploratory sessions. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
prd-generator Produces production-ready Product Requirements Documents (PRDs) for software systems and AI-powered features, with clear problem framing, measurable outcomes, scoped functionality, testable requirements, and explicit risks. Use when the user wants to write a PRD, define requirements, plan a feature, or turn a vague product idea into an implementation-ready specification. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
recording-change-intent Requires an externalised rationale for high-risk changes - new public exports, new endpoints, auth edits, migrations, removed guards - recorded as an Intent commit trailer, an ADR reference, or a module intent register, and reports high-risk changes that carry none. Use when agent-generated or AI-assisted changes ship without a recorded why, when reviewers cannot tell what a diff was for, when a codebase is losing its decision history, or when setting up an intent gate alongside test and coverage gates. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
reporting-bugs Transforms rough tester notes, screenshots, console output, or observed behavior into reproducible defect reports with severity, evidence, and follow-up guidance. Use when logging bugs, triaging intermittent issues, or rewriting vague defect notes into developer-ready reports. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
requirements-test-coverage-mapper Maps requirements (PRD, user stories, acceptance criteria) to planned test coverage via a Requirements Traceability Matrix, exposing coverage gaps, risks, test levels, prioritization, and automation candidates. Use when designing coverage from a specification, checking coverage completeness for a PRD or user story, finding missing acceptance criteria, or building a risk-based regression strategy. When the tests already exist and the matrix has to be extracted from them, verified, and kept accurate, use the tracing-requirements-to-code skill instead. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
reviewing-ai-output-groundedness Human review protocol for whether AI output is grounded in its sources: claim-by-claim attribution, hallucination classes, citation verification, sampling that is defensible, and a recorded attestation because groundedness cannot be fully automated. Also covers the responsible-AI pass - harmful output, bias, disclosure and privacy. Use when reviewing a RAG or summarisation feature, when factuality matters more than fluency, or when an eval suite needs the human check it cannot replace. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
running-visual-regression-tests Sets up and maintains visual regression testing: what to snapshot, baseline strategy, masking dynamic regions, threshold tuning, containerized baselines, and the review-and-update workflow. Use when styling regressions escape to production, when snapshots fail on every machine or every run, when baselines are being updated without being looked at, or when deciding whether visual testing is the right tool at all. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
scoping-change-relevance Classifies a diff into file tags and hunk tags - new public export, new endpoint, modified auth, SQL string, migration, added dependency, touched prompt - then maps each tag to the quality practices it makes relevant, producing a defensible per-change check scope instead of running everything or guessing. Use when deciding what to test for a specific pull request, when a full regression run is too slow to gate on, when a pre-push or PR gate needs a scope someone can argue with, or when asked "which checks does this change actually need". πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
static-code-analysis-typescript Creates, reviews, and modernizes static code analysis setups for Node.js and TypeScript repositories, covering ESLint flat config, typescript-eslint, tsconfig, Prettier, import sorting, Husky, lint-staged, package.json quality scripts, and CI quality gates. Use when setting up or auditing linting, formatting, type-checking, commit hooks, or GitHub Actions quality checks in a TypeScript project. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
tech-debt-analysis Analyzes technical debt in codebases, test suites, architecture, dependencies, and delivery workflows using observable signals. Use when auditing repository health, explaining slow delivery or flaky tests, prioritizing refactoring, or building an evidence-based remediation roadmap with risk, effort, and ROI. Use when user asks for technical debt analysis, repository audit, or refactor planning. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
test-driven-development-quick Runs the red-green-refactor loop with a compact set of rules: one failing test, the minimal code to pass it, cleanup under green. Use for routine test-first work on a single behavior or a small bug fix, and when the request mentions TDD, test-first, red-green-refactor, or writing the test before the code. For multi-unit features, outside-in double loops, legacy code without tests, or a session that needs a written cycle log, use the test-driven-development skill instead. manual
test-driven-development Drives implementation test-first through red-green-refactor cycles: one failing test, the minimal code to pass it, then cleanup under green. Use before writing production code for a new behavior, and whenever the request mentions TDD, test-driven, test-first, red-green-refactor, "write the test first", "start with a failing test", or reproducing a bug with a test before fixing it. Also use when implementation keeps landing before anyone knows how it will be verified. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
testing-api-contracts Validates API responses against OpenAPI or JSON Schema, detects breaking changes between spec versions, and builds consumer-driven contract checks. Use when an API has a published spec, when a backend change might break a client, when API tests assert only status codes, or when mocked fixtures need a guard against drifting from the real service. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
testing-application-security Applies OWASP-informed security testing within a tester scope: an authorization gate before any probing, authorization matrices, broken access control and IDOR checks, input validation and injection observation, session and auth behaviour, and safe reporting of findings. Use when testing auth-protected features, when a security review needs QA coverage, when an exploratory session surfaced something security-shaped, or when access control needs a systematic check rather than a spot check. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
testing-llm-features Builds an offline eval suite for LLM-powered features: golden reference cases per prompt template, deterministic scoring where possible, a regression gate on prompt, model and retrieval changes, and CI wiring with promptfoo, Vitest or deepeval. Use when a product ships prompts, agents or RAG, when a model or prompt upgrade needs a regression check, when LLM output is currently verified by someone eyeballing it, or when asked how to test a feature whose output is non-deterministic. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
testing-llm-guardrails Tests the runtime validation around model output - schema conformance, PII leakage, moderation, refusal behaviour, tool-call safety - and the adversarial suite that tries to defeat it: direct prompt injection, jailbreaks, and indirect injection through retrieved documents, tool results and user content. Use when an LLM feature reaches real users, when a model can call tools or read untrusted content, when an AI feature needs a security-style test suite, or when asked whether a chatbot or agent can be manipulated. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
testing-performance-and-load Designs and runs performance and load tests: workload modelling from real traffic, thresholds tied to SLOs, warmup and ramp shapes, percentile-based analysis, and lightweight CI perf checks with k6 or Artillery. Use when a feature has latency or throughput requirements, when "it feels slow" needs to become a number, when a launch needs a capacity check, or when a performance result needs interpreting rather than just collecting. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
tracing-requirements-to-code Builds and maintains bidirectional traceability between requirements and the tests that verify them: extracts a matrix from an existing codebase, annotates tests with requirement IDs, finds orphan tests and uncovered requirements, verifies that each link is real, and enforces linkage in CI. Use when a suite exists but nobody can say what it proves, when an auditor or stakeholder asks which tests cover a requirement, when a traceability matrix has gone stale, or when a requirement changes and its blast radius must be found. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
tracking-quality-trends Turns point-in-time quality readings into a trend: archives each run, diffs against the previous one, and reports direction per metric - practices newly present or regressed, coverage movement, flake rate, waivers expiring, eval scores - using limit/current/goal framing. Use when quality reporting is a series of disconnected snapshots, when a team needs to show improvement over a quarter, when a number is quoted with no baseline, or when a regression in the quality system itself should be visible. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
unslop-answers Cuts AI tells from what the agent says about its own work: completion claimed without a run, invented file paths and API names, terminal output that was never produced, findings with no location, percentages with no denominator, absence claimed from one grep, effort narration instead of results, hedge stacking, buried blockers, puffery in a bug title. Use whenever reporting a result, a fix, a review finding, a test outcome, a coverage or flake number, a root cause, or a release recommendation, and when the request mentions "prove it", "did you actually run it", "be specific", "no fluff", "stop hedging", or "is this real". Must always apply to answers about your own work. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
unslop-tests Cuts AI tells from test code: tests that pass without proving anything, tautological assertions, mock-only tests, hardcoded waits, coverage theater, vague names, swallowed errors, retries used as fixes. Use whenever test code is written, changed, or reviewed, including tests produced as a side effect of a feature task, and when the request mentions "review these tests", "are these tests any good", "this test always passes", "this suite is flaky", or "clean up these tests". Must always apply to test code. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
verifying-acceptance-criteria Compares implementation evidence against acceptance criteria and shows what is met, partial, missing, or untestable. Use when checking feature readiness, preparing QA sign-off, or turning criteria into a concrete verification matrix without inventing missing behavior. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
verifying-change-coverage Verifies that the lines and branches a change actually touched are executed by tests, using LCOV or Cobertura diff coverage instead of whole-repo percentages, and escalates uncovered high-risk changes into a blocking finding. Use when a pull request needs a coverage gate that unrelated tests cannot satisfy, when total coverage looks healthy but the diff is untested, when wiring diff coverage into CI, or when someone claims a change is covered because the suite is green. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual
writing-unit-tests-quick Writes a few solid unit tests, using a compact set of rules for structure, assertions, determinism, and edge cases. Use for routine everyday testing of a single function, class, or small module, or for a quick sanity check on tests someone just wrote. For legacy backfills, flaky-suite investigations, deep test-double design, or a full suite review, use the writing-unit-tests skill instead. manual
writing-unit-tests Writes and reviews focused, deterministic unit tests that verify behavior through public interfaces instead of implementation details. Use whenever tests are added to code that already exists, and when the request mentions unit tests, test coverage, edge cases, mocks or test doubles, "add tests for this function", "cover this module", "these tests are flaky", or "this test breaks every refactor". Also use when reviewing an existing suite for brittleness, weak assertions, or missing boundary cases. πŸ’‘ Includes additional bundled resources in resources that should also be copied/used. See skill folder. manual

Hooks

Hooks enable you to execute custom shell commands at key lifecycle points during agent sessions. Use hooks to automate workflows, enforce security policies, validate operations, and integrate with external tools. Hooks run deterministically and can control agent behavior, including blocking tool execution or injecting context into the conversation.

Tip

Usage:

  • copy these hooks to your .github/hooks/ folder or .claude/settings.json

Warning

Hooks are currently in preview and may require enabling experimental features in VS Code settings.

Title Description Install
Print Tool Info Hook Example hook that prints tool name, arguments, timestamp, and working directory before each tool call. Manual setup required

Plugins

Plugins bundle skills (and other resources) into installable packages served from this repository's plugin marketplace (defined in .github/plugin/marketplace.json).

Tip

Usage:

copilot plugin marketplace add jaktestowac/awesome-copilot-for-testers
copilot plugin install <plugin-name>

The plugin skill copies under plugins/<plugin>/skills/ are generated from the skills/ directory, which is the source of truth. A plugin must ship its content self-contained (skill paths resolve relative to the plugin root, so a plugin cannot point up at skills/), which is why the copies exist.

Never edit them by hand. After changing anything under skills/, regenerate and verify:

npm run plugin:materialize
npm run lint

Each plugin declares what it ships in its .github/plugin/plugin.json ("skills": ["./skills/<name>/"]); the generator copies those from the repo root and prunes anything no longer declared.

Title Description Install
Analyzing Quality Metrics Plugin Defines, computes, and interprets test and quality metrics: pass rate, flake rate, suite duration, defect escape rate, time to detect, and coverage with its caveats. Use when building a QA dashboard, reporting suite health to stakeholders, comparing releases over time, or when a coverage percentage or a bug count is being treated as a measure of quality. copilot plugin install analyzing-quality-metrics
Analyzing Regression Scope Plugin Analyzes diffs, changed files, hotfixes, and release candidates to identify where regression risk spreads and what must be retested first. Use when scoping retest after a change, reviewing QA impact for a pull request, or building a minimal confidence suite for release validation. copilot plugin install analyzing-regression-scope
Api Playwright Test Developer Plugin Writes and reviews API automation tests with Playwright Test, covering setup/teardown, assertions, data management, and hybrid API+UI flows. Use when creating backend API tests, contract checks, data-driven API coverage, API+UI hybrid workflows, or reviewing existing Playwright API suites. copilot plugin install api-playwright-test-developer
Assessing Comprehension Debt Plugin Measures the risk that code shipped without anyone understanding it: a teach-back attestation on high-risk changes, a risk band from changed-code complexity, diff size and whether a human explanation accompanied it, and optional AI-authorship provenance. Findings stay advisory by design. Use when an AI-assisted codebase grows faster than the team reads it, when reviews are rubber-stamped, when nobody can explain a module that ships weekly, or when leadership asks how much of the code the team can actually maintain. copilot plugin install assessing-comprehension-debt
Assessing Release Readiness Plugin Produces an evidence-backed go/no-go recommendation: exit criteria status, open-defect risk profile, coverage against risk, environment parity, rollback readiness, and the residual risk stated plainly. Use when preparing a release sign-off, when someone asks whether a build is ready to ship, or when a decision to release is being made on impressions rather than evidence. copilot plugin install assessing-release-readiness
Attesting Manual Verification Plugin Records human verification - code review, exploratory sessions, UAT, accessibility passes, UX and observability reviews - as dated, attributed attestations in a register, so human-centric practices stay in the quality contract without pretending to be automated checks. Use when a strategy requires verification no tool can prove, when sign-off evidence is scattered across chats and tickets, when a gap matrix needs to distinguish "attested" from "passed", or when an audit asks who verified what and when. copilot plugin install attesting-manual-verification
Auditing Accessibility Plugin Performs webpage and user-flow accessibility audits with WCAG 2.2 guidance, manual verification checklists, prioritized remediation output, and stakeholder-ready summaries. Use when auditing accessibility on a URL, triaging suspected a11y issues, or producing technical findings with practical next steps. copilot plugin install auditing-accessibility
Code Review Plugin Performs a quick, lightweight review of a small diff or single file, giving concise feedback on correctness, readability, tests, and obvious risks. Use when the user asks for a fast sanity-check review of a small change. For test-automation suites, architectural refactors, security-sensitive paths, or multi-file reviews, use the code-review-advanced skill instead. copilot plugin install code-review
Code Review Advanced Plugin Performs evidence-driven code review for pull requests, legacy modules, and quality-critical changes. Use when reviewing complex or multi-file changes, test automation suites, architectural refactors, or hot paths that need analysis of correctness, maintainability, security, performance, test quality, and operability risks. Provides structured feedback with severity-ranked findings, actionable recommendations, and clear rationale. For a fast sanity check of a small diff or single file, use the code-review skill instead. copilot plugin install code-review-advanced
Creating Custom Agents Plugin Creates GitHub Copilot custom agents (.agent.md) for VS Code. Use when defining a specialized agent role, selecting a minimal toolset, referencing supporting skills, or shipping install-ready agent examples with clear boundaries and collaboration rules. copilot plugin install creating-custom-agents
Creating Hooks Plugin Creates GitHub Copilot hooks for VS Code using hooks.json, supporting scripts, and companion docs. Use when automating deterministic checks, pre/post tool policies, or reusable hook packs that need safe defaults, observability, and clear installation guidance. copilot plugin install creating-hooks
Creating Instructions Plugin Creates GitHub Copilot instruction files for VS Code, including repository guidance and scoped .instructions.md rules. Use when encoding project conventions, choosing applyTo patterns, or shipping install-ready instruction examples with rationale and guardrails. copilot plugin install creating-instructions
Creating Orchestration Packs Plugin Creates agent orchestration packs: cooperating .agent.md files with an orchestrator, subagents, matched handoffs, minimal tool grants, and a shared handoff packet contract. Use when one agent role is too broad for a job, when a workflow needs explore, plan, implement, review, and verify as separate roles, or when a pack fails the orchestration lint because a handoff target does not resolve. copilot plugin install creating-orchestration-packs
Creating Plugins Plugin Packages repository skills as installable Copilot plugins: marketplace registration, plugin.json manifests, generated skill copies, and the sync check CI enforces. Use when bundling one or more skills for installation, when adding a plugin to the marketplace, or when npm run lint reports that a plugin copy has drifted from its source skill. copilot plugin install creating-plugins
Creating Prompts Plugin Creates GitHub Copilot prompt files (.prompt.md) for VS Code. Use when building reusable workflow starters that route work to the right agent, collect the right inputs, and ship with install-ready templates, examples, and validation guidance. copilot plugin install creating-prompts
Creating Skills Plugin Creates GitHub Copilot skills with reusable workflows, companion resources, and validation gates. Use when packaging repeatable expertise into a SKILL.md folder, deciding what belongs in the skill body versus resources, or producing install-ready skill examples for a team or collection. copilot plugin install creating-skills
Deriving A Quality Contract Plugin Derives a project-specific quality contract from three axes - risk profile, team maturity, and product surface - labelling each testing practice MUST, SHOULD, or COULD, then produces a PRESENT/PARTIAL/MISSING/WAIVED gap matrix with an ordered remediation plan. Use when a project has no agreed testing strategy, when a team argues about which practices are mandatory, when onboarding a legacy or inherited repository, when a quality strategy document has to be derived from evidence instead of opinion, or when someone asks "what testing should we actually be doing here". copilot plugin install deriving-a-quality-contract
Designing Functional Tests Plugin Designs risk-based functional test plans, manual test cases, regression slices, and automation handoff packs from requirements, URLs, or exploratory notes. Use when preparing manual QA coverage before automation, turning feature descriptions into scenario catalogs, or converting exploratory findings into structured test assets. copilot plugin install designing-functional-tests
Designing Test Data Plugin Designs realistic, boundary-heavy, and role-aware test data packs for manual and automated testing. Use when a feature needs deliberate inputs and fixtures before execution, when edge-case values keep being improvised, or when automation needs stable example data with setup notes. copilot plugin install designing-test-data
Documenting Test Suites Plugin Writes the documentation a test suite needs to be usable by someone who did not build it: run instructions, environment setup, tag glossary, ownership, fixture and data notes, and architecture decision records. Use when onboarding someone into a suite, when "how do I run these" keeps being asked, when a test architecture decision needs recording, or when a suite is inherited with no documentation. copilot plugin install documenting-test-suites
Generating Quality Gate Workflows Plugin Generates the CI workflow that enforces a quality contract: layered jobs from fast local hooks to release gates, per-practice steps for JS/TS toolchains, diff-scoped checks, sticky PR reporting, required-check wiring, and a severity policy deciding what fails the build. Use when quality practices are agreed but not enforced, when CI runs everything on every commit, when a gate reports green while the check it runs cannot fail, or when a per-change gate needs to post findings on the pull request. copilot plugin install generating-quality-gate-workflows
Governing Quality Waivers Plugin Turns "we will skip this check for now" into a dated, attributed, expiring waiver with a stated reason and owner, inventories the silent skips already hiding in a repo - skipped tests, disabled lint rules, ts-expect-error, continue-on-error, lowered thresholds, coverage ignores - and reports expired waivers as findings. Use when a team wants to bypass a quality gate, when skip lists and quarantined tests accumulate without owners, when an audit asks why a check is off, or when a repo needs to know what it has quietly stopped enforcing. copilot plugin install governing-quality-waivers
Handling Sensitive Test Data Plugin Keeps test data legally and operationally safe: classifies personal data, replaces production copies with synthetic or anonymized fixtures, manages secrets in local runs and CI, strips personal data from traces and HAR files, and sets retention rules. Use when tests run against a production data copy, when fixtures contain real names or emails, when a data protection review is coming, or when test artifacts might carry personal data into CI logs. copilot plugin install handling-sensitive-test-data
Migrating Tests To Playwright Plugin Migrates Cypress, Selenium, WebdriverIO, or Protractor suites to Playwright in staged slices, each with a parity gate before the old test is deleted. Use when porting a legacy browser suite, when deciding which tests are not worth porting, when a half-finished migration has stalled with two suites running in parallel, or when a suite migration needs a plan before anyone starts translating files. copilot plugin install migrating-tests-to-playwright
Mocking Network And Time Plugin Decides what to fake and stubs it correctly: network interception with Playwright route or HAR replay, MSW handlers, fake clocks, and fixed timezones. Use when a test depends on a third party, when a date-sensitive test breaks overnight, when a suite is slow because it calls real services, or when a mocked test stays green while production is broken. copilot plugin install mocking-network-and-time
Planning Exploratory Testing Plugin Runs session-based exploratory testing: writes charters, timeboxes sessions, applies coverage heuristics and tours, captures notes as evidence, debriefs, and converts findings into bug reports and automation candidates. Use when a feature needs testing before requirements settle, when scripted cases keep passing while users hit problems, when a release needs a risk sweep with limited time, or when the request mentions charters or exploratory sessions. copilot plugin install planning-exploratory-testing
Prd Generator Plugin Produces production-ready Product Requirements Documents (PRDs) for software systems and AI-powered features, with clear problem framing, measurable outcomes, scoped functionality, testable requirements, and explicit risks. Use when the user wants to write a PRD, define requirements, plan a feature, or turn a vague product idea into an implementation-ready specification. copilot plugin install prd-generator
Recording Change Intent Plugin Requires an externalised rationale for high-risk changes - new public exports, new endpoints, auth edits, migrations, removed guards - recorded as an Intent commit trailer, an ADR reference, or a module intent register, and reports high-risk changes that carry none. Use when agent-generated or AI-assisted changes ship without a recorded why, when reviewers cannot tell what a diff was for, when a codebase is losing its decision history, or when setting up an intent gate alongside test and coverage gates. copilot plugin install recording-change-intent
Reporting Bugs Plugin Transforms rough tester notes, screenshots, console output, or observed behavior into reproducible defect reports with severity, evidence, and follow-up guidance. Use when logging bugs, triaging intermittent issues, or rewriting vague defect notes into developer-ready reports. copilot plugin install reporting-bugs
Requirements Test Coverage Mapper Plugin Maps requirements (PRD, user stories, acceptance criteria) to planned test coverage via a Requirements Traceability Matrix, exposing coverage gaps, risks, test levels, prioritization, and automation candidates. Use when designing coverage from a specification, checking coverage completeness for a PRD or user story, finding missing acceptance criteria, or building a risk-based regression strategy. When the tests already exist and the matrix has to be extracted from them, verified, and kept accurate, use the tracing-requirements-to-code skill instead. copilot plugin install requirements-test-coverage-mapper
Reviewing AI Output Groundedness Plugin Human review protocol for whether AI output is grounded in its sources: claim-by-claim attribution, hallucination classes, citation verification, sampling that is defensible, and a recorded attestation because groundedness cannot be fully automated. Also covers the responsible-AI pass - harmful output, bias, disclosure and privacy. Use when reviewing a RAG or summarisation feature, when factuality matters more than fluency, or when an eval suite needs the human check it cannot replace. copilot plugin install reviewing-ai-output-groundedness
Running Visual Regression Tests Plugin Sets up and maintains visual regression testing: what to snapshot, baseline strategy, masking dynamic regions, threshold tuning, containerized baselines, and the review-and-update workflow. Use when styling regressions escape to production, when snapshots fail on every machine or every run, when baselines are being updated without being looked at, or when deciding whether visual testing is the right tool at all. copilot plugin install running-visual-regression-tests
Scoping Change Relevance Plugin Classifies a diff into file tags and hunk tags - new public export, new endpoint, modified auth, SQL string, migration, added dependency, touched prompt - then maps each tag to the quality practices it makes relevant, producing a defensible per-change check scope instead of running everything or guessing. Use when deciding what to test for a specific pull request, when a full regression run is too slow to gate on, when a pre-push or PR gate needs a scope someone can argue with, or when asked "which checks does this change actually need". copilot plugin install scoping-change-relevance
Static Code Analysis Typescript Plugin Creates, reviews, and modernizes static code analysis setups for Node.js and TypeScript repositories, covering ESLint flat config, typescript-eslint, tsconfig, Prettier, import sorting, Husky, lint-staged, package.json quality scripts, and CI quality gates. Use when setting up or auditing linting, formatting, type-checking, commit hooks, or GitHub Actions quality checks in a TypeScript project. copilot plugin install static-code-analysis-typescript
Tech Debt Analysis Plugin Analyzes technical debt in codebases, test suites, architecture, dependencies, and delivery workflows using observable signals. Use when auditing repository health, explaining slow delivery or flaky tests, prioritizing refactoring, or building an evidence-based remediation roadmap with risk, effort, and ROI. Use when user asks for technical debt analysis, repository audit, or refactor planning. copilot plugin install tech-debt-analysis
Test Driven Development Plugin Drives implementation test-first through red-green-refactor cycles: one failing test, the minimal code to pass it, then cleanup under green. Use before writing production code for a new behavior, and whenever the request mentions TDD, test-driven, test-first, red-green-refactor, "write the test first", "start with a failing test", or reproducing a bug with a test before fixing it. Also use when implementation keeps landing before anyone knows how it will be verified. copilot plugin install test-driven-development
Testing Api Contracts Plugin Validates API responses against OpenAPI or JSON Schema, detects breaking changes between spec versions, and builds consumer-driven contract checks. Use when an API has a published spec, when a backend change might break a client, when API tests assert only status codes, or when mocked fixtures need a guard against drifting from the real service. copilot plugin install testing-api-contracts
Testing Application Security Plugin Applies OWASP-informed security testing within a tester scope: an authorization gate before any probing, authorization matrices, broken access control and IDOR checks, input validation and injection observation, session and auth behaviour, and safe reporting of findings. Use when testing auth-protected features, when a security review needs QA coverage, when an exploratory session surfaced something security-shaped, or when access control needs a systematic check rather than a spot check. copilot plugin install testing-application-security
Testing LLM Features Plugin Builds an offline eval suite for LLM-powered features: golden reference cases per prompt template, deterministic scoring where possible, a regression gate on prompt, model and retrieval changes, and CI wiring with promptfoo, Vitest or deepeval. Use when a product ships prompts, agents or RAG, when a model or prompt upgrade needs a regression check, when LLM output is currently verified by someone eyeballing it, or when asked how to test a feature whose output is non-deterministic. copilot plugin install testing-llm-features
Testing LLM Guardrails Plugin Tests the runtime validation around model output - schema conformance, PII leakage, moderation, refusal behaviour, tool-call safety - and the adversarial suite that tries to defeat it: direct prompt injection, jailbreaks, and indirect injection through retrieved documents, tool results and user content. Use when an LLM feature reaches real users, when a model can call tools or read untrusted content, when an AI feature needs a security-style test suite, or when asked whether a chatbot or agent can be manipulated. copilot plugin install testing-llm-guardrails
Testing Performance And Load Plugin Designs and runs performance and load tests: workload modelling from real traffic, thresholds tied to SLOs, warmup and ramp shapes, percentile-based analysis, and lightweight CI perf checks with k6 or Artillery. Use when a feature has latency or throughput requirements, when "it feels slow" needs to become a number, when a launch needs a capacity check, or when a performance result needs interpreting rather than just collecting. copilot plugin install testing-performance-and-load
Tracing Requirements To Code Plugin Builds and maintains bidirectional traceability between requirements and the tests that verify them: extracts a matrix from an existing codebase, annotates tests with requirement IDs, finds orphan tests and uncovered requirements, verifies that each link is real, and enforces linkage in CI. Use when a suite exists but nobody can say what it proves, when an auditor or stakeholder asks which tests cover a requirement, when a traceability matrix has gone stale, or when a requirement changes and its blast radius must be found. copilot plugin install tracing-requirements-to-code
Tracking Quality Trends Plugin Turns point-in-time quality readings into a trend: archives each run, diffs against the previous one, and reports direction per metric - practices newly present or regressed, coverage movement, flake rate, waivers expiring, eval scores - using limit/current/goal framing. Use when quality reporting is a series of disconnected snapshots, when a team needs to show improvement over a quarter, when a number is quoted with no baseline, or when a regression in the quality system itself should be visible. copilot plugin install tracking-quality-trends
Unslop Answers Plugin Cuts AI tells from what the agent says about its own work: completion claimed without a run, invented file paths and API names, terminal output that was never produced, findings with no location, percentages with no denominator, absence claimed from one grep, effort narration instead of results, hedge stacking, buried blockers, puffery in a bug title. Use whenever reporting a result, a fix, a review finding, a test outcome, a coverage or flake number, a root cause, or a release recommendation, and when the request mentions "prove it", "did you actually run it", "be specific", "no fluff", "stop hedging", or "is this real". Must always apply to answers about your own work. copilot plugin install unslop-answers
Unslop Tests Plugin Cuts AI tells from test code: tests that pass without proving anything, tautological assertions, mock-only tests, hardcoded waits, coverage theater, vague names, swallowed errors, retries used as fixes. Use whenever test code is written, changed, or reviewed, including tests produced as a side effect of a feature task, and when the request mentions "review these tests", "are these tests any good", "this test always passes", "this suite is flaky", or "clean up these tests". Must always apply to test code. copilot plugin install unslop-tests
Verifying Acceptance Criteria Plugin Compares implementation evidence against acceptance criteria and shows what is met, partial, missing, or untestable. Use when checking feature readiness, preparing QA sign-off, or turning criteria into a concrete verification matrix without inventing missing behavior. copilot plugin install verifying-acceptance-criteria
Verifying Change Coverage Plugin Verifies that the lines and branches a change actually touched are executed by tests, using LCOV or Cobertura diff coverage instead of whole-repo percentages, and escalates uncovered high-risk changes into a blocking finding. Use when a pull request needs a coverage gate that unrelated tests cannot satisfy, when total coverage looks healthy but the diff is untested, when wiring diff coverage into CI, or when someone claims a change is covered because the suite is green. copilot plugin install verifying-change-coverage
Writing Unit Tests Plugin Writes and reviews focused, deterministic unit tests that verify behavior through public interfaces instead of implementation details. Use whenever tests are added to code that already exists, and when the request mentions unit tests, test coverage, edge cases, mocks or test doubles, "add tests for this function", "cover this module", "these tests are flaky", or "this test breaks every refactor". Also use when reviewing an existing suite for brittleness, weak assertions, or missing boundary cases. copilot plugin install writing-unit-tests

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