Requirements Test Coverage Mapper

✅ Requirements → Test Coverage Mapper (RTM) Skill

This skill turns a PRD, user stories, acceptance criteria, and constraints into a traceability-driven test coverage plan:

• a Requirements Traceability Matrix (RTM)
• a gap & ambiguity report
• test design recommendations across levels (unit/API/UI/e2e/non-functional)
• automation candidates and CI gating suggestions

The output is designed to be used as a living artifact and “single source of truth” for coverage, readiness, and auditability.

🎯 When to Use

Use this skill when you need to:

• Validate coverage completeness before/after implementation
• Convert PRD/user stories into a test plan that is traceable and reviewable
• Identify missing acceptance criteria, ambiguous requirements, or hidden scope
• Support change impact analysis when requirements evolve
• Build a risk-based regression strategy or release readiness assessment

🧭 Operational Workflow

Phase 0: Strategy Selection (Context First)

Classify the work to adjust rigor and output depth:

• Delivery stage: MVP / Iteration / Hardening / Release / Hotfix
• Domain risk: Low / Medium / High (payments, auth, compliance = high)
• Change surface: UI / API / Data / Infra / Cross-cutting
• AI criticality: None / Supporting / Core
• Target tooling (optional): Jira / Azure DevOps / TestRail / GitHub Issues

If unknown, mark as TBD and proceed with safe defaults.

Phase 1: Discovery (Mandatory Questions)

Before producing the RTM, ask at least 5 focused questions. Must cover:

1. Test basis source
   • PRD link/text? user stories? AC? designs? (what is “source of truth”?)
2. Scope boundaries
   • What is explicitly in/out? any non-goals?
3. Quality attributes
   • performance, security, accessibility, reliability, observability expectations?
4. Data & environments
   • test envs available, data seeding/masking rules, third-party dependencies?
5. Release constraints
   • deadline, MVP cuts, rollout type (flagged, staged, big-bang)?
6. Definition of Done / acceptance
   • who signs off and what evidence is required?

If the user cannot answer, capture assumptions explicitly in the output.

Phase 2: Normalization (Make Requirements Traceable)

The agent must normalize input into atomic, testable requirements:

• Split compound requirements into smaller “testable statements”
• Assign stable IDs if missing:
  • REQ-001, REQ-002… (requirements)
  • US-001… (user stories)
  • AC-001… (acceptance criteria)
• Mark ambiguous statements as NEEDS_CLARIFICATION

Phase 3: Coverage Design (Levels + Risks + Data)

For each requirement, propose coverage across:

• Functional: positive/negative, edge cases, permissions
• Integration: APIs, events, DB, third parties
• UX: key flows, accessibility, error messaging
• Non-functional: performance, security, reliability, observability
• AI-specific (if applicable): evaluation, drift, hallucinations/failure modes, fallbacks

Use risk-based thinking:

• assign impact (H/M/L) and likelihood (H/M/L)
• derive priority and test depth from risk

🧾 Output Schema (Strict)

Your output MUST follow this structure and order.

0) Document Metadata

• Version: 0.x
• Status: Draft / Review / Approved
• Owner: (name or TBD)
• Last Updated: YYYY-MM-DD
• Sources Used: (PRD/story links or Provided text in prompt)
• Assumptions Policy: “No assumptions unless explicitly listed below.”

1) Executive Coverage Summary

• Coverage status: % requirements mapped / unmapped
• High-risk areas and proposed test focus
• Top 5 gaps / blockers
• Recommended next actions (what to clarify, what to implement, what to test first)

2) Requirements Traceability Matrix (RTM)

A table with one row per atomic requirement.

Rules:

• Every requirement must have at least one scenario ID, or be flagged as MISSING_TEST.
• Every scenario must have a clear expected outcome.
• If requirement is ambiguous → mark NEEDS_CLARIFICATION and propose exact questions.

3) Test Scenario Catalog (Specification by Example)

List scenarios referenced in the RTM.

Each scenario must include:

• Scenario ID (TS-001)
• Title
• Level(s): Unit/API/UI/E2E/NFR
• Preconditions / Data
• Steps (high-level)
• Expected results (assertable)
• Observability notes (logs/metrics/traces that confirm behavior)
• Negative cases / edge cases (if relevant)

4) Gap & Ambiguity Report

A prioritized list of issues that block good testing:

• Missing acceptance criteria
• Undefined error handling behavior
• Missing NFR targets (latency, rate limits, availability)
• Unclear roles/permissions
• Testability concerns (no hooks, unstable IDs, no deterministic mode)

Include:

• Gap ID (GAP-001)
• Description
• Why it matters
• Suggested resolution (exact question or requirement rewrite)

5) Risk-Based Prioritization (What to Test First)

Provide a prioritized plan:

• Tier 0 (release blockers / critical flows)
• Tier 1 (high risk / high usage)
• Tier 2 (regression breadth)

For each tier include:

• linked Req IDs and Scenario IDs
• recommended execution cadence (per PR, nightly, pre-release)
• minimal “confidence suite” for hotfixes

6) Automation & CI Recommendations

• Which scenarios are best suited for automation (and why)
• What should remain manual (and why)
• CI gating suggestion:
  • smoke suite vs regression suite
  • flaky risk notes
  • environment needs

If tooling is known (e.g., Azure DevOps/Jira/TestRail), propose how to encode links (IDs/tags). If unknown → provide tool-agnostic tagging conventions.

7) Assumptions, Dependencies, and Change-Impact Notes

• Assumptions (explicit list)
• Dependencies (systems/teams/vendors)
• Change impact rules:
  • “If REQ-xxx changes, rerun suites: …”
  • “Areas likely to regress: …”

✅ Quality Rules (Non-Negotiable)

DO

• Make every requirement atomic and testable
• Use stable IDs for traceability
• Flag unknowns; don’t invent constraints
• Prefer measurable outcomes and concrete expected results
• Recommend test levels intentionally (not everything must be E2E)

DON’T

• Don’t hallucinate requirements, flows, or data models
• Don’t produce only UI tests (must consider unit/API/NFR)
• Don’t accept ambiguous requirements without logging them as gaps
• Don’t mark coverage “complete” if AC is missing or unclear

🧠 AI Self-Review Checklist

Before final output:

• Every requirement has an ID and is atomic
• Every requirement maps to ≥1 scenario OR is flagged missing
• Ambiguities are captured as explicit questions
• Risk is assigned and used to prioritize
• Non-functional coverage is addressed where relevant
• Assumptions are listed explicitly

🧪 Example (Mini)

RTM (excerpt)

Scenario (excerpt)

TS-002 - Password reset token expires

• Levels: API + UI
• Data: user exists; token issued at T0
• Steps: request reset → wait 16 min (or simulate time) → attempt reset
• Expected: reset rejected with TOKEN_EXPIRED; user not logged in; audit log entry exists

✅ Outcome

Used correctly, this skill produces a traceability-driven plan that:

• proves coverage,
• exposes gaps early,
• guides automation investment,
• and supports release readiness decisions.

Source: jaktestowac/awesome-copilot-for-testers — distributed by TomeVault.