copilot-nextjs-instructions
Provides GitHub Copilot with custom instructions for generating high-quality Next.js applications using Tailwind CSS, TypeScript, and modern React patterns with accessibility best practices.
92
/ 100 · Grade A
A = 90–100
“I need to configure GitHub Copilot to generate consistent, high-quality Next.js code that follows modern React patterns, uses Tailwind CSS effectively, and maintains accessibility standards.”
copilot-nextjs-instructions earned Certified status with a trust score of 92/100 (Grade A). No adversarial findings — all attack patterns were handled gracefully. Security scan flagged 0 findings.
Trust Score Breakdown
Eight weighted signals composing the aggregate trust score
Scheme v2.0 · Weights provisional · Consumer confirmations and uptime use pipeline-derived baselines.
Findings
Security scan results, adversarial testing, and pipeline review
Security Scan — Cisco Skill Scanner
Adversarial Testing — 5 categories, 0 findings
No adversarial findings — all attack patterns handled gracefully.
Methodology v1.0 · 5 categories · ~55 attack patterns
Behavioral Fingerprint
Runtime performance baseline for drift detection
Samples
8
Error rate
0.0%
Peak memory
— MB
Avg CPU
—%
Response time distribution
Output size distribution
Fingerprint v1.0 · Baseline: Mar 28, 2026 · Status: baseline
Interface
Skill triggers and instruction summary
Activation
This skill activates when generating any code that involves user interfaces or web content
This skill handles accessibility compliance and inclusive design guidance for all UI code generation
Does
Enforce WCAG 2.2 Level AA compliance in all generated code
Use semantic HTML elements and proper ARIA attributes
Ensure keyboard operability and visible focus indicators
Implement proper contrast ratios (4.5:1 for text, 3:1 for UI elements)
Create accessible forms with proper labels and error handling
Support high contrast and forced colors mode
Ensure content reflows properly at 320px viewport width
Provide skip links and proper heading structure
Include accessible names for all interactive elements
Use inclusive, people-first language in user-facing text
Does not
Override or disrupt OS accessibility settings
Use color alone to convey information
Create keyboard traps or inaccessible focus management
Generate arbitrary colors without using design tokens
Claim the output is 'fully accessible'
Skip heading levels or use improper semantic structure
Disable forced colors mode without justification
Create fixed-width layouts that break at narrow viewports
Scope & Permissions
What this capability can and cannot access — derived from pipeline analysis
yes
no
no
no
no
no
Known Failure Modes
Documented edge cases and recovery behaviors
when when no UI component library is available
then the agent prefers native HTML elements over custom ARIA implementations
when when contrast requirements cannot be met with existing colors
then the agent defines a compliant color token palette
when when complex interactive widgets are needed
then the agent implements proper focus management with roving tabindex or aria-activedescendant
Badge & Integration
Embed certification status in your README, docs, or CI pipeline
Certification Notes
Provenance observations from the pipeline
Publisher "github" is not verified — first certification from this publisher
Single contributor — no peer review evidence in commit history
Repository is 1 days old — recently created
Package description appears to be boilerplate or template text
Signed Artifact
Certification provenance and verification metadata
Pipeline Artifacts
Raw data files from this certification run — downloadable for independent verification
contract.json
Full unsigned contract
stage1-ingest.json
Ingest stage output
stage2a-sbom.json
SBOM generation results
stage2a-vulns.json
Vulnerability scan results
stage2b-security.json
Security scan results
stage3a-functional.json
Functional test results
stage3b-adversarial.json
Adversarial test results
stage3c-fingerprint.json
Behavioral fingerprint
stage4-certify.json
Certification decision + trust score
stage3a-measurements.json
Raw functional test measurements
stage3b-measurements.json
Raw adversarial test measurements
run-log.json
Pipeline execution log
Not all files may be present for every certification.