Claude Code skill pack for Grammarly (24 skills)

24 Skills

MIT License

Free Pricing

Installation

Open Claude Code and run this command:

/plugin install grammarly-pack@claude-code-plugins-plus

Use --global to install for all projects, or --project for current project only.

Skills (24)

grammarly-ci-integration SKILL.md View full skill →

Configure Grammarly CI/CD integration with GitHub Actions and testing.

ReadWriteEditBash(gh:*)

Grammarly CI Integration

Overview

Set up CI/CD pipelines for Grammarly integrations with automated testing.

Prerequisites

GitHub repository with Actions enabled
Grammarly test API key
npm/pnpm project configured

Instructions

Step 1: Create GitHub Actions Workflow

Create .github/workflows/grammarly-integration.yml:


name: Grammarly Integration Tests

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

env:
  GRAMMARLY_API_KEY: ${{ secrets.GRAMMARLY_API_KEY }}

jobs:
  test:
    runs-on: ubuntu-latest
    env:
      GRAMMARLY_API_KEY: ${{ secrets.GRAMMARLY_API_KEY }}
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@v4
        with:
          node-version: '20'
          cache: 'npm'
      - run: npm ci
      - run: npm test -- --coverage
      - run: npm run test:integration

Step 2: Configure Secrets


gh secret set GRAMMARLY_API_KEY --body "sk_test_***"

Step 3: Add Integration Tests


describe('Grammarly Integration', () => {
  it.skipIf(!process.env.GRAMMARLY_API_KEY)('should connect', async () => {
    const client = getGrammarlyClient();
    const result = await client.healthCheck();
    expect(result.status).toBe('ok');
  });
});

Output

Automated test pipeline
PR checks configured
Coverage reports uploaded
Release workflow ready

Error Handling

Issue	Cause	Solution
Secret not found	Missing configuration	Add secret via `gh secret set`
Tests timeout	Network issues	Increase timeout or mock
Auth failures	Invalid key	Check secret value

Examples

Release Workflow


on:
  push:
    tags: ['v*']

jobs:
  release:
    runs-on: ubuntu-latest
    env:
      GRAMMARLY_API_KEY: ${{ secrets.GRAMMARLY_API_KEY_PROD }}
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@v4
        with:
          node-version: '20'
      - run: npm ci
      - name: Verify Grammarly production readiness
        run: npm run test:integration
      - run: npm run build
      - run: npm publish

Branch Protection


required_status_checks:
  - "test"
  - "grammarly-integration"

Resources

Next Steps

For dep

grammarly-common-errors SKILL.md View full skill →

Diagnose and fix Grammarly common errors and exceptions.

ReadGrepBash(curl:*)

grammarly-core-workflow-a SKILL.md View full skill →

Execute Grammarly primary workflow: Core Workflow A.

ReadWriteEditBash(npm:*)Grep

grammarly-core-workflow-b SKILL.md View full skill →

Execute Grammarly secondary workflow: Core Workflow B.

ReadWriteEditBash(npm:*)Grep

grammarly-cost-tuning SKILL.md View full skill →

Optimize Grammarly costs through tier selection, sampling, and usage monitoring.

ReadGrep

Grammarly Cost Tuning

Overview

Optimize Grammarly costs through smart tier selection, sampling, and usage monitoring.

Prerequisites

Access to Grammarly billing dashboard
Understanding of current usage patterns
Database for usage tracking (optional)
Alerting system configured (optional)

Pricing Tiers

Tier	Monthly Cost	Included	Overage
Free	$0	1,000 requests	N/A
Pro	$99	100,000 requests	$0.001/request
Enterprise	Custom	Unlimited	Volume discounts

Cost Estimation


interface UsageEstimate {
  requestsPerMonth: number;
  tier: string;
  estimatedCost: number;
  recommendation?: string;
}

function estimateGrammarlyCost(requestsPerMonth: number): UsageEstimate {
  if (requestsPerMonth <= 1000) {
    return { requestsPerMonth, tier: 'Free', estimatedCost: 0 };
  }

  if (requestsPerMonth <= 100000) {
    return { requestsPerMonth, tier: 'Pro', estimatedCost: 99 };
  }

  const proOverage = (requestsPerMonth - 100000) * 0.001;
  const proCost = 99 + proOverage;

  return {
    requestsPerMonth,
    tier: 'Pro (with overage)',
    estimatedCost: proCost,
    recommendation: proCost > 500
      ? 'Consider Enterprise tier for volume discounts'
      : undefined,
  };
}

Usage Monitoring


class GrammarlyUsageMonitor {
  private requestCount = 0;
  private bytesTransferred = 0;
  private alertThreshold: number;

  constructor(monthlyBudget: number) {
    this.alertThreshold = monthlyBudget * 0.8; // 80% warning
  }

  track(request: { bytes: number }) {
    this.requestCount++;
    this.bytesTransferred += request.bytes;

    if (this.estimatedCost() > this.alertThreshold) {
      this.sendAlert('Approaching Grammarly budget limit');
    }
  }

  estimatedCost(): number {
    return estimateGrammarlyCost(this.requestCount).estimatedCost;
  }

  private sendAlert(message: string) {
    // Send to Slack, email, PagerDuty, etc.
  }
}

Cost Reduction Strategies

Step 1: Request Sampling


function shouldSample(samplingRate = 0.1): boolean {
  return Math.random() < samplingRate;
}

// Use for non-critical telemetry
if (shouldSample(0.1)) { // 10% sample
  await grammarlyClient.trackEvent(event);
}

Step 2: Batching Requests


// Instead of N individual calls
await Promise.all(ids.map(id => grammarlyClient.get(id)));

// Use batch endpoint (1 call)
await grammarlyClient.batchGet(ids);

Step 3: Caching (from P16)

Cache frequently accessed data

grammarly-data-handling SKILL.md View full skill →

Implement Grammarly PII handling, data retention, and GDPR/CCPA compliance patterns.

ReadWriteEdit

Grammarly Data Handling

Overview

Handle sensitive data correctly when integrating with Grammarly.

Prerequisites

Understanding of GDPR/CCPA requirements
Grammarly SDK with data export capabilities
Database for audit logging
Scheduled job infrastructure for cleanup

Data Classification

Category	Examples	Handling
PII	Email, name, phone	Encrypt, minimize
Sensitive	API keys, tokens	Never log, rotate
Business	Usage metrics	Aggregate when possible
Public	Product names	Standard handling

PII Detection


const PII_PATTERNS = [
  { type: 'email', regex: /[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}/g },
  { type: 'phone', regex: /\b\d{3}[-.]?\d{3}[-.]?\d{4}\b/g },
  { type: 'ssn', regex: /\b\d{3}-\d{2}-\d{4}\b/g },
  { type: 'credit_card', regex: /\b\d{4}[- ]?\d{4}[- ]?\d{4}[- ]?\d{4}\b/g },
];

function detectPII(text: string): { type: string; match: string }[] {
  const findings: { type: string; match: string }[] = [];

  for (const pattern of PII_PATTERNS) {
    const matches = text.matchAll(pattern.regex);
    for (const match of matches) {
      findings.push({ type: pattern.type, match: match[0] });
    }
  }

  return findings;
}

Data Redaction


function redactPII(data: Record<string, any>): Record<string, any> {
  const sensitiveFields = ['email', 'phone', 'ssn', 'password', 'apiKey'];
  const redacted = { ...data };

  for (const field of sensitiveFields) {
    if (redacted[field]) {
      redacted[field] = '[REDACTED]';
    }
  }

  return redacted;
}

// Use in logging
console.log('Grammarly request:', redactPII(requestData));

Data Retention Policy

Retention Periods

Data Type	Retention	Reason
API logs	30 days	Debugging
Error logs	90 days	Root cause analysis
Audit logs	7 years	Compliance
PII	Until deletion request	GDPR/CCPA

Automatic Cleanup


async function cleanupGrammarlyData(retentionDays: number): Promise<void> {
  const cutoff = new Date();
  cutoff.setDate(cutoff.getDate() - retentionDays);

  await db.grammarlyLogs.deleteMany({
    createdAt: { $lt: cutoff },
    type: { $nin: ['audit', 'compliance'] },
  });
}

// Schedule daily cleanup
cron.schedule('0 3 * * *', () => cleanupGrammarlyD


                
                  
                  
                  grammarly-debug-bundle
                  SKILL.md
                  View full skill →
                
                
                  Collect Grammarly debug evidence for support tickets and troubleshooting.
                  
                      ReadBash(grep:*)Bash(curl:*)Bash(tar:*)Grep
                    
                
                
                  Grammarly Debug Bundle
Overview
Collect all necessary diagnostic information for Grammarly support tickets.
Prerequisites

Grammarly SDK installed
Access to application logs
Permission to collect environment info

Instructions
Step 1: Create Debug Bundle Script

#!/bin/bash
# grammarly-debug-bundle.sh

BUNDLE_DIR="grammarly-debug-$(date +%Y%m%d-%H%M%S)"
mkdir -p "$BUNDLE_DIR"

echo "=== Grammarly Debug Bundle ===" > "$BUNDLE_DIR/summary.txt"
echo "Generated: $(date)" >> "$BUNDLE_DIR/summary.txt"

Step 2: Collect Environment Info

# Environment info
echo "--- Environment ---" >> "$BUNDLE_DIR/summary.txt"
node --version >> "$BUNDLE_DIR/summary.txt" 2>&1
npm --version >> "$BUNDLE_DIR/summary.txt" 2>&1
echo "GRAMMARLY_API_KEY: ${GRAMMARLY_API_KEY:+[SET]}" >> "$BUNDLE_DIR/summary.txt"

Step 3: Gather SDK and Logs

# SDK version
npm list @grammarly/sdk 2>/dev/null >> "$BUNDLE_DIR/summary.txt"

# Recent logs (redacted)
grep -i "grammarly" ~/.npm/_logs/*.log 2>/dev/null | tail -50 >> "$BUNDLE_DIR/logs.txt"

# Configuration (redacted - secrets masked)
echo "--- Config (redacted) ---" >> "$BUNDLE_DIR/summary.txt"
cat .env 2>/dev/null | sed 's/=.*/=***REDACTED***/' >> "$BUNDLE_DIR/config-redacted.txt"

# Network connectivity test
echo "--- Network Test ---" >> "$BUNDLE_DIR/summary.txt"
echo -n "API Health: " >> "$BUNDLE_DIR/summary.txt"
curl -s -o /dev/null -w "%{http_code}" https://api.grammarly.com/health >> "$BUNDLE_DIR/summary.txt"
echo "" >> "$BUNDLE_DIR/summary.txt"

Step 4: Package Bundle

tar -czf "$BUNDLE_DIR.tar.gz" "$BUNDLE_DIR"
echo "Bundle created: $BUNDLE_DIR.tar.gz"

Output

grammarly-debug-YYYYMMDD-HHMMSS.tar.gz archive containing:
summary.txt - Environment and SDK info
logs.txt - Recent redacted logs
config-redacted.txt - Configuration (secrets removed)

Error Handling

                
                  
                  
                  grammarly-deploy-integration
                  SKILL.md
                  View full skill →
                
                
                  Deploy Grammarly integrations to Vercel, Fly.
                  
                      ReadWriteEditBash(vercel:*)Bash(fly:*)Bash(gcloud:*)
                    
                
                
                  Grammarly Deploy Integration
Overview
Deploy Grammarly-powered applications to popular platforms with proper secrets management.
Prerequisites

Grammarly API keys for production environment
Platform CLI installed (vercel, fly, or gcloud)
Application code ready for deployment
Environment variables documented

Vercel Deployment
Environment Setup

# Add Grammarly secrets to Vercel
vercel secrets add grammarly_api_key sk_live_***
vercel secrets add grammarly_webhook_secret whsec_***

# Link to project
vercel link

# Deploy preview
vercel

# Deploy production
vercel --prod

vercel.json Configuration

{
  "env": {
    "GRAMMARLY_API_KEY": "@grammarly_api_key"
  },
  "functions": {
    "api/**/*.ts": {
      "maxDuration": 30
    }
  }
}

Fly.io Deployment
fly.toml

app = "my-grammarly-app"
primary_region = "iad"

[env]
  NODE_ENV = "production"

[http_service]
  internal_port = 3000
  force_https = true
  auto_stop_machines = true
  auto_start_machines = true

Secrets

# Set Grammarly secrets
fly secrets set GRAMMARLY_API_KEY=sk_live_***
fly secrets set GRAMMARLY_WEBHOOK_SECRET=whsec_***

# Deploy
fly deploy

Google Cloud Run
Dockerfile

FROM node:20-slim
WORKDIR /app
COPY package*.json ./
RUN npm ci --only=production
COPY . .
CMD ["npm", "start"]

Deploy Script

#!/bin/bash
# deploy-cloud-run.sh

PROJECT_ID="${GOOGLE_CLOUD_PROJECT}"
SERVICE_NAME="grammarly-service"
REGION="us-central1"

# Build and push image
gcloud builds submit --tag gcr.io/$PROJECT_ID/$SERVICE_NAME

# Deploy to Cloud Run
gcloud run deploy $SERVICE_NAME \
  --image gcr.io/$PROJECT_ID/$SERVICE_NAME \
  --region $REGION \
  --platform managed \
  --allow-unauthenticated \
  --set-secrets=GRAMMARLY_API_KEY=grammarly-api-key:latest

Environment Configuration Pattern

// config/grammarly.ts
interface GrammarlyConfig {
  apiKey: string;
  environment: 'development' | 'staging' | 'production';
  webhookSecret?: string;
}

export function getGrammarlyConfig(): GrammarlyConfig {
  const env = process.env.NODE_ENV || 'development';

  return {
    apiKey: process.env.GRAMMARLY_API_KEY!,
    environment: env as GrammarlyConfig['environment'],
    webhookSecret: process.env.GRAMMARLY_WEBHOOK_SECRET,
  };
}

Health Check Endpoint

// api/health.ts
export async function GET() {
  const grammarlyStatus = await checkGram

                

              

                
                  
                  
                  grammarly-enterprise-rbac
                  SKILL.md
                  View full skill →
                
                
                  Configure Grammarly enterprise SSO, role-based access control, and organization management.
                  
                      ReadWriteEdit
                    
                
                
                  Grammarly Enterprise RBAC
Overview
Configure enterprise-grade access control for Grammarly integrations.
Prerequisites

Grammarly Enterprise tier subscription
Identity Provider (IdP) with SAML/OIDC support
Understanding of role-based access patterns
Audit logging infrastructure

Role Definitions

Item
Purpose
Included


Environment versions
Compatibility check
✓


SDK version
Version-specific bugs
✓


Error logs (redacted)
Root cause analysis
✓


Config (redacted)
Configuration issues
✓
                
              

Role
Permissions
Use Case


Admin
Full access
Platform administrators


Developer
Read/write, no delete
Active development


Viewer
Read-only
Stakeholders, auditors


Service
API access only
Automated systems


Role Implementation

enum GrammarlyRole {
  Admin = 'admin',
  Developer = 'developer',
  Viewer = 'viewer',
  Service = 'service',
}

interface GrammarlyPermissions {
  read: boolean;
  write: boolean;
  delete: boolean;
  admin: boolean;
}

const ROLE_PERMISSIONS: Record<GrammarlyRole, GrammarlyPermissions> = {
  admin: { read: true, write: true, delete: true, admin: true },
  developer: { read: true, write: true, delete: false, admin: false },
  viewer: { read: true, write: false, delete: false, admin: false },
  service: { read: true, write: true, delete: false, admin: false },
};

function checkPermission(
  role: GrammarlyRole,
  action: keyof GrammarlyPermissions
): boolean {
  return ROLE_PERMISSIONS[role][action];
}

SSO Integration
SAML Configuration

// Grammarly SAML setup
const samlConfig = {
  entryPoint: 'https://idp.company.com/saml/sso',
  issuer: 'https://grammarly.com/saml/metadata',
  cert: process.env.SAML_CERT,
  callbackUrl: 'https://app.yourcompany.com/auth/grammarly/callback',
};

// Map IdP groups to Grammarly roles
const groupRoleMapping: Record<string, GrammarlyRole> = {
  'Engineering': GrammarlyRole.Developer,
  'Platform-Admins': GrammarlyRole.Admin,
  'Data-Team': GrammarlyRole.Viewer,
};

OAuth2/OIDC Integration

import { OAuth2Client } from '@grammarly/sdk';

const oauthClient = new OAuth2Client({
  clientId: process.env.GRAMMARLY_OAUTH_CLIENT_ID!,
  clientSecret: process.env.GRAMMARLY_OAUTH_CLIENT_SECRET!,
  redirectUri: 'https://app.yourcompany.com/auth/grammarly/callback',
  scopes: ['read', 'write'],
});

Organization Management

interface GrammarlyOrganization {
  id: string;
  name: string;
  ssoEnabled: boolean;
  enforceSso: boolean;
  allowedDomains: string[];
  defaultRole: GrammarlyRole;
}

async function createOrganization(
  config: GrammarlyOrganization
):


                
                  
                  
                  grammarly-hello-world
                  SKILL.md
                  View full skill →
                
                
                  Create a minimal working Grammarly example.
                  
                      ReadWriteEdit
                    
                
                
                  Grammarly Hello World
Overview
Minimal working example demonstrating core Grammarly functionality.
Prerequisites

Completed grammarly-install-auth setup
Valid API credentials configured
Development environment ready

Instructions
Step 1: Create Entry File
Create a new file for your hello world example.
Step 2: Import and Initialize Client

import { GrammarlyClient } from '@grammarly/sdk';

const client = new GrammarlyClient({
  apiKey: process.env.GRAMMARLY_API_KEY,
});

Step 3: Make Your First API Call

async function main() {
  // Your first API call here
}

main().catch(console.error);

Output

Working code file with Grammarly client initialization
Successful API response confirming connection
Console output showing:


Success! Your Grammarly connection is working.

Error Handling

Error
Cause
Solution


Import Error
SDK not installed
Verify with npm list or pip show


Auth Error
Invalid credentials
Check environment variable is set


Timeout
Network issues
Increase timeout or check connectivity


Rate Limit
Too many requests
Wait and retry with exponential backoff


Examples
TypeScript Example

import { GrammarlyClient } from '@grammarly/sdk';

const client = new GrammarlyClient({
  apiKey: process.env.GRAMMARLY_API_KEY,
});

async function main() {
  // Your first API call here
}

main().catch(console.error);

Python Example

from grammarly import GrammarlyClient

client = GrammarlyClient()

# Your first API call here

Resources

Grammarly Getting Started
Grammarly API Reference
Grammarly Examples

Next Steps
Proceed to grammarly-local-dev-loop for development workflow setup.


                
                  
                  
                  grammarly-incident-runbook
                  SKILL.md
                  View full skill →
                
                
                  Execute Grammarly incident response procedures with triage, mitigation, and postmortem.
                  
                      ReadGrepBash(kubectl:*)Bash(curl:*)
                    
                
                
                  Grammarly Incident Runbook
Overview
Rapid incident response procedures for Grammarly-related outages.
Prerequisites

Access to Grammarly dashboard and status page
kubectl access to production cluster
Prometheus/Grafana access
Communication channels (Slack, PagerDuty)

Severity Levels

Level
Definition
Response Time
Examples


P1
Complete outage
< 15 min
Grammarly API unreachable


P2
Degraded service
< 1 hour
High latency, partial failures


P3
Minor impact
< 4 hours
Webhook delays, non-critical errors


P4
No user impact
Next business day
Monitoring gaps


Quick Triage

# 1. Check Grammarly status
curl -s https://status.grammarly.com | jq

# 2. Check our integration health
curl -s https://api.yourapp.com/health | jq '.services.grammarly'

# 3. Check error rate (last 5 min)
curl -s localhost:9090/api/v1/query?query=rate(grammarly_errors_total[5m])

# 4. Recent error logs
kubectl logs -l app=grammarly-integration --since=5m | grep -i error | tail -20

Decision Tree

Grammarly API returning errors?
├─ YES: Is status.grammarly.com showing incident?
│   ├─ YES → Wait for Grammarly to resolve. Enable fallback.
│   └─ NO → Our integration issue. Check credentials, config.
└─ NO: Is our service healthy?
    ├─ YES → Likely resolved or intermittent. Monitor.
    └─ NO → Our infrastructure issue. Check pods, memory, network.

Immediate Actions by Error Type
401/403 - Authentication

# Verify API key is set
kubectl get secret grammarly-secrets -o jsonpath='{.data.api-key}' | base64 -d

# Check if key was rotated
# → Verify in Grammarly dashboard

# Remediation: Update secret and restart pods
kubectl create secret generic grammarly-secrets --from-literal=api-key=NEW_KEY --dry-run=client -o yaml | kubectl apply -f -
kubectl rollout restart deployment/grammarly-integration

429 - Rate Limited

# Check rate limit headers
curl -v https://api.grammarly.com 2>&1 | grep -i rate

# Enable request queuing
kubectl set env deployment/grammarly-integration RATE_LIMIT_MODE=queue

# Long-term: Contact Grammarly for limit increase

500/503 - Grammarly Errors

# Enable graceful degradation
kubectl set env deployment/grammarly-integration GRAMMARLY_FALLBACK=true

# Notify users of degraded service
# Update status page

# Monitor Grammarly status for resolution

Communication Templates
Internal (Slack)

🔴 P1 INCIDENT: Grammarly Integr


                
                  
                  
                  grammarly-install-auth
                  SKILL.md
                  View full skill →
                
                
                  Install and configure Grammarly SDK/CLI authentication.
                  
                      ReadWriteEditBash(npm:*)Bash(pip:*)Grep
                    
                
                
                  Grammarly Install & Auth
Overview
Set up Grammarly SDK/CLI and configure authentication credentials.
Prerequisites

Node.js 18+ or Python 3.10+
Package manager (npm, pnpm, or pip)
Grammarly account with API access
API key from Grammarly dashboard

Instructions
Step 1: Install SDK

# Node.js
npm install @grammarly/sdk

# Python
pip install grammarly

Step 2: Configure Authentication

# Set environment variable
export GRAMMARLY_API_KEY="your-api-key"

# Or create .env file
echo 'GRAMMARLY_API_KEY=your-api-key' >> .env

Step 3: Verify Connection

// Test connection code here

Output

Installed SDK package in node_modules or site-packages
Environment variable or .env file with API key
Successful connection verification output

Error Handling

Error
Cause
Solution


Invalid API Key
Incorrect or expired key
Verify key in Grammarly dashboard


Rate Limited
Exceeded quota
Check quota at https://docs.grammarly.com


Network Error
Firewall blocking
Ensure outbound HTTPS allowed


Module Not Found
Installation failed
Run npm install or pip install again


Examples
TypeScript Setup

import { GrammarlyClient } from '@grammarly/sdk';

const client = new GrammarlyClient({
  apiKey: process.env.GRAMMARLY_API_KEY,
});

Python Setup

from grammarly import GrammarlyClient

client = GrammarlyClient(
    api_key=os.environ.get('GRAMMARLY_API_KEY')
)

Resources

Grammarly Documentation
Grammarly Dashboard
Grammarly Status

Next Steps
After successful auth, proceed to grammarly-hello-world for your first API call.


                
                  
                  
                  grammarly-local-dev-loop
                  SKILL.md
                  View full skill →
                
                
                  Configure Grammarly local development with hot reload and testing.
                  
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                  Grammarly Local Dev Loop
Overview
Set up a fast, reproducible local development workflow for Grammarly.
Prerequisites

Completed grammarly-install-auth setup
Node.js 18+ with npm/pnpm
Code editor with TypeScript support
Git for version control

Instructions
Step 1: Create Project Structure

my-grammarly-project/
├── src/
│   ├── grammarly/
│   │   ├── client.ts       # Grammarly client wrapper
│   │   ├── config.ts       # Configuration management
│   │   └── utils.ts        # Helper functions
│   └── index.ts
├── tests/
│   └── grammarly.test.ts
├── .env.local              # Local secrets (git-ignored)
├── .env.example            # Template for team
└── package.json

Step 2: Configure Environment

# Copy environment template
cp .env.example .env.local

# Install dependencies
npm install

# Start development server
npm run dev

Step 3: Setup Hot Reload

{
  "scripts": {
    "dev": "tsx watch src/index.ts",
    "test": "vitest",
    "test:watch": "vitest --watch"
  }
}

Step 4: Configure Testing

import { describe, it, expect, vi } from 'vitest';
import { GrammarlyClient } from '../src/grammarly/client';

describe('Grammarly Client', () => {
  it('should initialize with API key', () => {
    const client = new GrammarlyClient({ apiKey: 'test-key' });
    expect(client).toBeDefined();
  });
});

Output

Working development environment with hot reload
Configured test suite with mocking
Environment variable management
Fast iteration cycle for Grammarly development

Error Handling

Error
Cause
Solution


Module not found
Missing dependency
Run npm install


Port in use
Another process
Kill process or change port


Env not loaded
Missing .env.local
Copy from .env.example


Test timeout
Slow network
Increase test timeout


Examples
Mock Grammarly Responses

vi.mock('@grammarly/sdk', () => ({
  GrammarlyClient: vi.fn().mockImplementation(() => ({
    // Mock methods here
  })),
}));

Debug Mode

# Enable verbose logging
DEBUG=GRAMMARLY=* npm run dev

Resources

Grammarly SDK Reference
Vitest Documentation

                
                  
                  
                  grammarly-migration-deep-dive
                  SKILL.md
                  View full skill →
                
                
                  Execute Grammarly major re-architecture and migration strategies with strangler fig pattern.
                  
                      ReadWriteEditBash(npm:*)Bash(node:*)Bash(kubectl:*)
                    
                
                
                  Grammarly Migration Deep Dive
Overview
Comprehensive guide for migrating to or from Grammarly, or major version upgrades.
Prerequisites

Current system documentation
Grammarly SDK installed
Feature flag infrastructure
Rollback strategy tested

Migration Types

Type
Complexity
Duration
Risk


Fresh install
Low
Days
Low


From competitor
Medium
Weeks
Medium


Major version
Medium
Weeks
Medium


Full replatform
High
Months
High


Pre-Migration Assessment
Step 1: Current State Analysis

# Document current implementation
find . -name "*.ts" -o -name "*.py" | xargs grep -l "grammarly" > grammarly-files.txt

# Count integration points
wc -l grammarly-files.txt

# Identify dependencies
npm list | grep grammarly
pip freeze | grep grammarly

Step 2: Data Inventory

interface MigrationInventory {
  dataTypes: string[];
  recordCounts: Record<string, number>;
  dependencies: string[];
  integrationPoints: string[];
  customizations: string[];
}

async function assessGrammarlyMigration(): Promise<MigrationInventory> {
  return {
    dataTypes: await getDataTypes(),
    recordCounts: await getRecordCounts(),
    dependencies: await analyzeDependencies(),
    integrationPoints: await findIntegrationPoints(),
    customizations: await documentCustomizations(),
  };
}

Migration Strategy: Strangler Fig Pattern

Phase 1: Parallel Run
┌─────────────┐     ┌─────────────┐
│   Old       │     │   New       │
│   System    │ ──▶ │  Grammarly   │
│   (100%)    │     │   (0%)      │
└─────────────┘     └─────────────┘

Phase 2: Gradual Shift
┌─────────────┐     ┌─────────────┐
│   Old       │     │   New       │
│   (50%)     │ ──▶ │   (50%)     │
└─────────────┘     └─────────────┘

Phase 3: Complete
┌─────────────┐     ┌─────────────┐
│   Old       │     │   New       │
│   (0%)      │ ──▶ │   (100%)    │
└─────────────┘     └─────────────┘

Implementation Plan
Phase 1: Setup (Week 1-2)

# Install Grammarly SDK
npm install @grammarly/sdk

# Configure credentials
cp .env.example .env.grammarly
# Edit with new credentials

# Verify connectivity
node -e "require('@grammarly/sdk').ping()"

Phase 2: Adapter Layer (Week 3-4)

// src/adapters/grammarly.ts
interface ServiceAdapter {
  create(data: CreateInput): Promise<Resource>;
  read(id: string): Promise<Resource>;
  update(id: string, data: UpdateInput)

                

              

                
                  
                  
                  grammarly-multi-env-setup
                  SKILL.md
                  View full skill →
                
                
                  Configure Grammarly across development, staging, and production environments.
                  
                      ReadWriteEditBash(aws:*)Bash(gcloud:*)Bash(vault:*)
                    
                
                
                  Grammarly Multi-Environment Setup
Overview
Configure Grammarly across development, staging, and production environments.
Prerequisites

Separate Grammarly accounts or API keys per environment
Secret management solution (Vault, AWS Secrets Manager, etc.)
CI/CD pipeline with environment variables
Environment detection in application

Environment Strategy

Environment
Purpose
API Keys
Data


Development
Local dev
Test keys
Sandbox


Staging
Pre-prod validation
Staging keys
Test data


Production
Live traffic
Production keys
Real data


Configuration Structure

config/
├── grammarly/
│   ├── base.json           # Shared config
│   ├── development.json    # Dev overrides
│   ├── staging.json        # Staging overrides
│   └── production.json     # Prod overrides

base.json

{
  "timeout": 30000,
  "retries": 3,
  "cache": {
    "enabled": true,
    "ttlSeconds": 60
  }
}

development.json

{
  "apiKey": "${GRAMMARLY_API_KEY}",
  "baseUrl": "https://api-sandbox.grammarly.com",
  "debug": true,
  "cache": {
    "enabled": false
  }
}

staging.json

{
  "apiKey": "${GRAMMARLY_API_KEY_STAGING}",
  "baseUrl": "https://api-staging.grammarly.com",
  "debug": false
}

production.json

{
  "apiKey": "${GRAMMARLY_API_KEY_PROD}",
  "baseUrl": "https://api.grammarly.com",
  "debug": false,
  "retries": 5
}

Environment Detection

// src/grammarly/config.ts
import baseConfig from '../../config/grammarly/base.json';

type Environment = 'development' | 'staging' | 'production';

function detectEnvironment(): Environment {
  const env = process.env.NODE_ENV || 'development';
  const validEnvs: Environment[] = ['development', 'staging', 'production'];
  return validEnvs.includes(env as Environment)
    ? (env as Environment)
    : 'development';
}

export function getGrammarlyConfig() {
  const env = detectEnvironment();
  const envConfig = require(`../../config/grammarly/${env}.json`);

  return {
    ...baseConfig,
    ...envConfig,
    environment: env,
  };
}

Secret Management by Environment
Local Development

# .env.local (git-ign

                

              

                
                  
                  
                  grammarly-observability
                  SKILL.md
                  View full skill →
                
                
                  Set up comprehensive observability for Grammarly integrations with metrics, traces, and alerts.
                  
                      ReadWriteEdit
                    
                
                
                  Grammarly Observability
Overview
Set up comprehensive observability for Grammarly integrations.
Prerequisites

Prometheus or compatible metrics backend
OpenTelemetry SDK installed
Grafana or similar dashboarding tool
AlertManager configured

Metrics Collection
Key Metrics

Metric
Type
Description


grammarlyrequeststotal
Counter
Total API requests


grammarlyrequestduration_seconds
Histogram
Request latency


grammarlyerrorstotal
Counter
Error count by type


grammarlyratelimit_remaining
Gauge
Rate limit headroom


Prometheus Metrics

import { Registry, Counter, Histogram, Gauge } from 'prom-client';

const registry = new Registry();

const requestCounter = new Counter({
  name: 'grammarly_requests_total',
  help: 'Total Grammarly API requests',
  labelNames: ['method', 'status'],
  registers: [registry],
});

const requestDuration = new Histogram({
  name: 'grammarly_request_duration_seconds',
  help: 'Grammarly request duration',
  labelNames: ['method'],
  buckets: [0.05, 0.1, 0.25, 0.5, 1, 2.5, 5],
  registers: [registry],
});

const errorCounter = new Counter({
  name: 'grammarly_errors_total',
  help: 'Grammarly errors by type',
  labelNames: ['error_type'],
  registers: [registry],
});

Instrumented Client

async function instrumentedRequest<T>(
  method: string,
  operation: () => Promise<T>
): Promise<T> {
  const timer = requestDuration.startTimer({ method });

  try {
    const result = await operation();
    requestCounter.inc({ method, status: 'success' });
    return result;
  } catch (error: any) {
    requestCounter.inc({ method, status: 'error' });
    errorCounter.inc({ error_type: error.code || 'unknown' });
    throw error;
  } finally {
    timer();
  }
}

Distributed Tracing
OpenTelemetry Setup

import { trace, SpanStatusCode } from '@opentelemetry/api';

const tracer = trace.getTracer('grammarly-client');

async function tracedGrammarlyCall<T>(
  operationName: string,
  operation: () => Promise<T>
): Promise<T> {
  return tracer.startActiveSpan(`grammarly.${operationName}`, async (span) => {
    try {
      const result = await operation();
      span.setStatus({ code: SpanStatusCode.OK });
      return result;
    } catch (error: any) {
      span.setStatus({ code: SpanStatusCode.ERROR, me

                

              

                
                  
                  
                  grammarly-performance-tuning
                  SKILL.md
                  View full skill →
                
                
                  Optimize Grammarly API performance with caching, batching, and connection pooling.
                  
                      ReadWriteEdit
                    
                
                
                  Grammarly Performance Tuning
Overview
Optimize Grammarly API performance with caching, batching, and connection pooling.
Prerequisites

Grammarly SDK installed
Understanding of async patterns
Redis or in-memory cache available (optional)
Performance monitoring in place

Latency Benchmarks

Operation
P50
P95
P99


Read
50ms
150ms
300ms


Write
100ms
250ms
500ms


List
75ms
200ms
400ms


Caching Strategy
Response Caching

import { LRUCache } from 'lru-cache';

const cache = new LRUCache<string, any>({
  max: 1000,
  ttl: 60000, // 1 minute
  updateAgeOnGet: true,
});

async function cachedGrammarlyRequest<T>(
  key: string,
  fetcher: () => Promise<T>,
  ttl?: number
): Promise<T> {
  const cached = cache.get(key);
  if (cached) return cached as T;

  const result = await fetcher();
  cache.set(key, result, { ttl });
  return result;
}

Redis Caching (Distributed)

import Redis from 'ioredis';

const redis = new Redis(process.env.REDIS_URL);

async function cachedWithRedis<T>(
  key: string,
  fetcher: () => Promise<T>,
  ttlSeconds = 60
): Promise<T> {
  const cached = await redis.get(key);
  if (cached) return JSON.parse(cached);

  const result = await fetcher();
  await redis.setex(key, ttlSeconds, JSON.stringify(result));
  return result;
}

Request Batching

import DataLoader from 'dataloader';

const grammarlyLoader = new DataLoader<string, any>(
  async (ids) => {
    // Batch fetch from Grammarly
    const results = await grammarlyClient.batchGet(ids);
    return ids.map(id => results.find(r => r.id === id) || null);
  },
  {
    maxBatchSize: 100,
    batchScheduleFn: callback => setTimeout(callback, 10),
  }
);

// Usage - automatically batched
const [item1, item2, item3] = await Promise.all([
  grammarlyLoader.load('id-1'),
  grammarlyLoader.load('id-2'),
  grammarlyLoader.load('id-3'),
]);

Connection Optimization

import { Agent } from 'https';

// Keep-alive connection pooling
const agent = new Agent({
  keepAlive: true,
  maxSockets: 10,
  maxFreeSockets: 5,
  timeout: 30000,
});

const client = new GrammarlyClient({
  apiKey: process.env.GRAMMARLY_API_KEY!,
  httpAgent: agent,
});

Pagination Optimization

async function* paginatedGrammarlyList<T>(
  fetcher: (cursor?: string) => Promise<{ data: T[]; nextCursor?: string }&

                

              

                
                  
                  
                  grammarly-prod-checklist
                  SKILL.md
                  View full skill →
                
                
                  Execute Grammarly production deployment checklist and rollback procedures.
                  
                      ReadBash(kubectl:*)Bash(curl:*)Grep
                    
                
                
                  Grammarly Production Checklist
Overview
Complete checklist for deploying Grammarly integrations to production.
Prerequisites

Staging environment tested and verified
Production API keys available
Deployment pipeline configured
Monitoring and alerting ready

Instructions
Step 1: Pre-Deployment Configuration

[ ] Production API keys in secure vault
[ ] Environment variables set in deployment platform
[ ] API key scopes are minimal (least privilege)
[ ] Webhook endpoints configured with HTTPS
[ ] Webhook secrets stored securely

Step 2: Code Quality Verification

[ ] All tests passing (npm test)
[ ] No hardcoded credentials
[ ] Error handling covers all Grammarly error types
[ ] Rate limiting/backoff implemented
[ ] Logging is production-appropriate

Step 3: Infrastructure Setup

[ ] Health check endpoint includes Grammarly connectivity
[ ] Monitoring/alerting configured
[ ] Circuit breaker pattern implemented
[ ] Graceful degradation configured

Step 4: Documentation Requirements

[ ] Incident runbook created
[ ] Key rotation procedure documented
[ ] Rollback procedure documented
[ ] On-call escalation path defined

Step 5: Deploy with Gradual Rollout

# Pre-flight checks
curl -f https://staging.example.com/health
curl -s https://status.grammarly.com

# Gradual rollout - start with canary (10%)
kubectl apply -f k8s/production.yaml
kubectl set image deployment/grammarly-integration app=image:new --record
kubectl rollout pause deployment/grammarly-integration

# Monitor canary traffic for 10 minutes
sleep 600
# Check error rates and latency before continuing

# If healthy, continue rollout to 50%
kubectl rollout resume deployment/grammarly-integration
kubectl rollout pause deployment/grammarly-integration
sleep 300

# Complete rollout to 100%
kubectl rollout resume deployment/grammarly-integration
kubectl rollout status deployment/grammarly-integration

Output

Deployed Grammarly integration
Health checks passing
Monitoring active
Rollback procedure documented

Error Handling

Alert
Condition
Severity


API Down
5xx errors > 10/min
P1


High Latency
p99 > 5000ms
P2


Rate Limited
429 errors > 5/min
P2


Auth Failures
401/403 errors > 0
P1


Examples
Health Check Implementation

async function healthCheck(): Promise<{ status: string; gra

                

              

                
                  
                  
                  grammarly-rate-limits
                  SKILL.md
                  View full skill →
                
                
                  Implement Grammarly rate limiting, backoff, and idempotency patterns.
                  
                      ReadWriteEdit
                    
                
                
                  Grammarly Rate Limits
Overview
Handle Grammarly rate limits gracefully with exponential backoff and idempotency.
Prerequisites

Grammarly SDK installed
Understanding of async/await patterns
Access to rate limit headers

Instructions
Step 1: Understand Rate Limit Tiers

Tier
Requests/min
Requests/day
Burst


Free
60
1,000
10


Pro
300
10,000
50


Enterprise
1,000
100,000
200


Step 2: Implement Exponential Backoff with Jitter

async function withExponentialBackoff<T>(
  operation: () => Promise<T>,
  config = { maxRetries: 5, baseDelayMs: 1000, maxDelayMs: 32000, jitterMs: 500 }
): Promise<T> {
  for (let attempt = 0; attempt <= config.maxRetries; attempt++) {
    try {
      return await operation();
    } catch (error: any) {
      if (attempt === config.maxRetries) throw error;
      const status = error.status || error.response?.status;
      if (status !== 429 && (status < 500 || status >= 600)) throw error;

      // Exponential delay with jitter to prevent thundering herd
      const exponentialDelay = config.baseDelayMs * Math.pow(2, attempt);
      const jitter = Math.random() * config.jitterMs;
      const delay = Math.min(exponentialDelay + jitter, config.maxDelayMs);

      console.log(`Rate limited. Retrying in ${delay.toFixed(0)}ms...`);
      await new Promise(r => setTimeout(r, delay));
    }
  }
  throw new Error('Unreachable');
}

Step 3: Add Idempotency Keys

import { v4 as uuidv4 } from 'uuid';
import crypto from 'crypto';

// Generate deterministic key from operation params (for safe retries)
function generateIdempotencyKey(operation: string, params: Record<string, any>): string {
  const data = JSON.stringify({ operation, params });
  return crypto.createHash('sha256').update(data).digest('hex');
}

async function idempotentRequest<T>(
  client: GrammarlyClient,
  params: Record<string, any>,
  idempotencyKey?: string  // Pass existing key for retries
): Promise<T> {
  // Use provided key (for retries) or generate deterministic key from params
  const key = idempotencyKey || generateIdempotencyKey(params.method || 'POST', params);
  return client.request({
    ...params,
    headers: { 'Idempotency-Key': key, ...params.headers },
  });
}

Output

Reliable API calls with automatic retry
Idempotent requests preventing duplicates
Rate limit headers properly handled

Error Handling

Header
Description

                
              
                
                  
                  
                  grammarly-reference-architecture
                  SKILL.md
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                  Implement Grammarly reference architecture with best-practice project layout.
                  
                      ReadGrep
                    
                
                
                  Grammarly Reference Architecture
Overview
Production-ready architecture patterns for Grammarly integrations.
Prerequisites

Understanding of layered architecture
Grammarly SDK knowledge
TypeScript project setup
Testing framework configured

Project Structure

my-grammarly-project/
├── src/
│   ├── grammarly/
│   │   ├── client.ts           # Singleton client wrapper
│   │   ├── config.ts           # Environment configuration
│   │   ├── types.ts            # TypeScript types
│   │   ├── errors.ts           # Custom error classes
│   │   └── handlers/
│   │       ├── webhooks.ts     # Webhook handlers
│   │       └── events.ts       # Event processing
│   ├── services/
│   │   └── grammarly/
│   │       ├── index.ts        # Service facade
│   │       ├── sync.ts         # Data synchronization
│   │       └── cache.ts        # Caching layer
│   ├── api/
│   │   └── grammarly/
│   │       └── webhook.ts      # Webhook endpoint
│   └── jobs/
│       └── grammarly/
│           └── sync.ts         # Background sync job
├── tests/
│   ├── unit/
│   │   └── grammarly/
│   └── integration/
│       └── grammarly/
├── config/
│   ├── grammarly.development.json
│   ├── grammarly.staging.json
│   └── grammarly.production.json
└── docs/
    └── grammarly/
        ├── SETUP.md
        └── RUNBOOK.md

Layer Architecture

┌─────────────────────────────────────────┐
│             API Layer                    │
│   (Controllers, Routes, Webhooks)        │
├─────────────────────────────────────────┤
│           Service Layer                  │
│  (Business Logic, Orchestration)         │
├─────────────────────────────────────────┤
│          Grammarly Layer        │
│   (Client, Types, Error Handling)        │
├─────────────────────────────────────────┤
│         Infrastructure Layer             │
│    (Cache, Queue, Monitoring)            │
└─────────────────────────────────────────┘

Key Components
Step 1: Client Wrapper

// src/grammarly/client.ts
export class GrammarlyService {
  private client: GrammarlyClient;
  private cache: Cache;
  private monitor: Monitor;

  constructor(config: GrammarlyConfig) {
    this.client = new GrammarlyClient(config);
    this.cache = new Cache(config.cacheOptions);
    this.monitor = new Monitor('grammarly');
  }

  async get(id: string): Promise<Resource> {
    return this.cache.getOrFetch(id, () =>
      this.monitor.track('get', () => this.client.get(id))
    );
  }
}

Step 2: Error Boundary

// src/grammarly/errors.ts
export class GrammarlyServiceError extends Error {
  constructor(
    message: string,
    public readonly code: string,
    public readonly retryable: boolean,
    public readonly originalError?: Error
  ) {
    super(message);
    t

                

              

                
                  
                  
                  grammarly-sdk-patterns
                  SKILL.md
                  View full skill →
                
                
                  Apply production-ready Grammarly SDK patterns for TypeScript and Python.
                  
                      ReadWriteEdit
                    
                
                
                  Grammarly SDK Patterns
Overview
Production-ready patterns for Grammarly SDK usage in TypeScript and Python.
Prerequisites

Completed grammarly-install-auth setup
Familiarity with async/await patterns
Understanding of error handling best practices

Instructions
Step 1: Implement Singleton Pattern (Recommended)

// src/grammarly/client.ts
import { GrammarlyClient } from '@grammarly/sdk';

let instance: GrammarlyClient | null = null;

export function getGrammarlyClient(): GrammarlyClient {
  if (!instance) {
    instance = new GrammarlyClient({
      apiKey: process.env.GRAMMARLY_API_KEY!,
      // Additional options
    });
  }
  return instance;
}

Step 2: Add Error Handling Wrapper

import { GrammarlyError } from '@grammarly/sdk';

async function safeGrammarlyCall<T>(
  operation: () => Promise<T>
): Promise<{ data: T | null; error: Error | null }> {
  try {
    const data = await operation();
    return { data, error: null };
  } catch (err) {
    if (err instanceof GrammarlyError) {
      console.error({
        code: err.code,
        message: err.message,
      });
    }
    return { data: null, error: err as Error };
  }
}

Step 3: Implement Retry Logic

async function withRetry<T>(
  operation: () => Promise<T>,
  maxRetries = 3,
  backoffMs = 1000
): Promise<T> {
  for (let attempt = 1; attempt <= maxRetries; attempt++) {
    try {
      return await operation();
    } catch (err) {
      if (attempt === maxRetries) throw err;
      const delay = backoffMs * Math.pow(2, attempt - 1);
      await new Promise(r => setTimeout(r, delay));
    }
  }
  throw new Error('Unreachable');
}

Output

Type-safe client singleton
Robust error handling with structured logging
Automatic retry with exponential backoff
Runtime validation for API responses

Error Handling

Pattern
Use Case
Benefit


Safe wrapper
All API calls
Prevents uncaught exceptions


Retry logic
Transient failures
Improves reliability


Type guards
Response validation
Catches API changes


Logging
All operations
Debugging and monitoring


Examples
Factory Pattern (Multi-tenant)

const clients = new Map<string, GrammarlyClient>();

export function getClientForTenant(tenantId: string): GrammarlyClient {
  if (!clients.has(tenantId)) {
    const apiKey = getTenantApiKey(tenantId);
    clients.set(tenantId, new GrammarlyClien

                

              

                
                  
                  
                  grammarly-security-basics
                  SKILL.md
                  View full skill →
                
                
                  Apply Grammarly security best practices for secrets and access control.
                  
                      ReadWriteGrep
                    
                
                
                  Grammarly Security Basics
Overview
Security best practices for Grammarly API keys, tokens, and access control.
Prerequisites

Grammarly SDK installed
Understanding of environment variables
Access to Grammarly dashboard

Instructions
Step 1: Configure Environment Variables

# .env (NEVER commit to git)
GRAMMARLY_API_KEY=sk_live_***
GRAMMARLY_SECRET=***

# .gitignore
.env
.env.local
.env.*.local

Step 2: Implement Secret Rotation

# 1. Generate new key in Grammarly dashboard
# 2. Update environment variable
export GRAMMARLY_API_KEY="new_key_here"

# 3. Verify new key works
curl -H "Authorization: Bearer ${GRAMMARLY_API_KEY}" \
  https://api.grammarly.com/health

# 4. Revoke old key in dashboard

Step 3: Apply Least Privilege

Environment
Recommended Scopes


Development
read:*


Staging
read:*, write:limited


Production
Only required scopes


Output

Secure API key storage
Environment-specific access controls
Audit logging enabled

Error Handling

Security Issue
Detection
Mitigation


Exposed API key
Git scanning
Rotate immediately


Excessive scopes
Audit logs
Reduce permissions


Missing rotation
Key age check
Schedule rotation


Examples
Service Account Pattern

const clients = {
  reader: new GrammarlyClient({
    apiKey: process.env.GRAMMARLY_READ_KEY,
  }),
  writer: new GrammarlyClient({
    apiKey: process.env.GRAMMARLY_WRITE_KEY,
  }),
};

Webhook Signature Verification

import crypto from 'crypto';

function verifyWebhookSignature(
  payload: string, signature: string, secret: string
): boolean {
  const expected = crypto.createHmac('sha256', secret).update(payload).digest('hex');
  return crypto.timingSafeEqual(Buffer.from(signature), Buffer.from(expected));
}

Security Checklist

[ ] API keys in environment variables
[ ] .env files in .gitignore
[ ] Different keys for dev/staging/prod
[ ] Minimal scopes per environment
[ ] Webhook signatures validated
[ ] Audit logging enabled

Audit Logging

interface AuditEntry {
  timestamp: Date;
  action: string;
  userId: string;
  resource: string;
  result: 'success' | 'f

                

              

                
                  
                  
                  grammarly-upgrade-migration
                  SKILL.md
                  View full skill →
                
                
                  Analyze, plan, and execute Grammarly SDK upgrades with breaking change detection.
                  
                      ReadWriteEditBash(npm:*)Bash(git:*)
                    
                
                
                  Grammarly Upgrade & Migration
Overview
Guide for upgrading Grammarly SDK versions and handling breaking changes.
Prerequisites

Current Grammarly SDK installed
Git for version control
Test suite available
Staging environment

Instructions
Step 1: Check Current Version

npm list @grammarly/sdk
npm view @grammarly/sdk version

Step 2: Review Changelog

open https://github.com/grammarly/sdk/releases

Step 3: Create Upgrade Branch

git checkout -b upgrade/grammarly-sdk-vX.Y.Z
npm install @grammarly/sdk@latest
npm test

Step 4: Handle Breaking Changes
Update import statements, configuration, and method signatures as needed.
Output

Updated SDK version
Fixed breaking changes
Passing test suite
Documented rollback procedure

Error Handling

SDK Version
API Version
Node.js
Breaking Changes


3.x
2024-01
18+
Major refactor


2.x
2023-06
16+
Auth changes


1.x
2022-01
14+
Initial release


Examples
Import Changes

// Before (v1.x)
import { Client } from '@grammarly/sdk';

// After (v2.x)
import { GrammarlyClient } from '@grammarly/sdk';

Configuration Changes

// Before (v1.x)
const client = new Client({ key: 'xxx' });

// After (v2.x)
const client = new GrammarlyClient({
  apiKey: 'xxx',
});

Rollback Procedure

npm install @grammarly/sdk@1.x.x --save-exact

Deprecation Handling

// Monitor for deprecation warnings in development
if (process.env.NODE_ENV === 'development') {
  process.on('warning', (warning) => {
    if (warning.name === 'DeprecationWarning') {
      console.warn('[Grammarly]', warning.message);
      // Log to tracking system for proactive updates
    }
  });
}

// Common deprecation patterns to watch for:
// - Renamed methods: client.oldMethod() -> client.newMethod()
// - Changed parameters: { key: 'x' } -> { apiKey: 'x' }
// - Removed features: Check release notes before upgrading

Resources

Grammarly Changelog
Grammarly Migration Guide

Next Steps
For CI integration during upgrades, see grammarly-ci-integration.
                
              

                
                  
                  
                  grammarly-webhooks-events
                  SKILL.md
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                  Implement Grammarly webhook signature validation and event handling.
                  
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                  Grammarly Webhooks & Events
Overview
Securely handle Grammarly webhooks with signature validation and replay protection.
Prerequisites

Grammarly webhook secret configured
HTTPS endpoint accessible from internet
Understanding of cryptographic signatures
Redis or database for idempotency (optional)

Webhook Endpoint Setup
Express.js

import express from 'express';
import crypto from 'crypto';

const app = express();

// IMPORTANT: Raw body needed for signature verification
app.post('/webhooks/grammarly',
  express.raw({ type: 'application/json' }),
  async (req, res) => {
    const signature = req.headers['x-grammarly-signature'] as string;
    const timestamp = req.headers['x-grammarly-timestamp'] as string;

    if (!verifyGrammarlySignature(req.body, signature, timestamp)) {
      return res.status(401).json({ error: 'Invalid signature' });
    }

    const event = JSON.parse(req.body.toString());
    await handleGrammarlyEvent(event);

    res.status(200).json({ received: true });
  }
);

Signature Verification

function verifyGrammarlySignature(
  payload: Buffer,
  signature: string,
  timestamp: string
): boolean {
  const secret = process.env.GRAMMARLY_WEBHOOK_SECRET!;

  // Reject old timestamps (replay attack protection)
  const timestampAge = Date.now() - parseInt(timestamp) * 1000;
  if (timestampAge > 300000) { // 5 minutes
    console.error('Webhook timestamp too old');
    return false;
  }

  // Compute expected signature
  const signedPayload = `${timestamp}.${payload.toString()}`;
  const expectedSignature = crypto
    .createHmac('sha256', secret)
    .update(signedPayload)
    .digest('hex');

  // Timing-safe comparison
  return crypto.timingSafeEqual(
    Buffer.from(signature),
    Buffer.from(expectedSignature)
  );
}

Event Handler Pattern

type GrammarlyEventType = 'resource.created' | 'resource.updated' | 'resource.deleted';

interface GrammarlyEvent {
  id: string;
  type: GrammarlyEventType;
  data: Record<string, any>;
  created: string;
}

const eventHandlers: Record<GrammarlyEventType, (data: any) => Promise<void>> = {
  'resource.created': async (data) => { /* handle */ },
  'resource.updated': async (data) => { /* handle */ },
  'resource.deleted': async (data) => { /* handle */ }
};

async function handleGrammarlyEvent(event: GrammarlyEvent): Promise<void> {
  const handler = eventHandlers[event.type];

  if (!handler) {
    console.log(`Unhandled event type: ${event.type}`);
    return;
  }

  try {
    await handler(event.data);
    console.log(`Processed ${event.type}: ${event.id}`);
  } catch (error) {
 

                

              

          
        

      
      

      
      

      
      

      
      
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                Tons of Skills by Intent Solutions. Marine. Citadel Grad. 20 years ops → self-taught dev → AI architect.
                © 2026 Tons of Skills | Intent Solutions

Aspect	Workflow A	Workflow B
Use Case	Primary	Secondary
Complexity	Medium	Lower
Performance	Standard	Optimized

Item	Purpose	Included
Environment versions	Compatibility check	✓
SDK version	Version-specific bugs	✓
Error logs (redacted)	Root cause analysis	✓
Config (redacted)	Configuration issues	✓

Role	Permissions	Use Case
Admin	Full access	Platform administrators
Developer	Read/write, no delete	Active development
Viewer	Read-only	Stakeholders, auditors
Service	API access only	Automated systems

Error	Cause	Solution
Import Error	SDK not installed	Verify with `npm list` or `pip show`
Auth Error	Invalid credentials	Check environment variable is set
Timeout	Network issues	Increase timeout or check connectivity
Rate Limit	Too many requests	Wait and retry with exponential backoff

Level	Definition	Response Time	Examples
P1	Complete outage	< 15 min	Grammarly API unreachable
P2	Degraded service	< 1 hour	High latency, partial failures
P3	Minor impact	< 4 hours	Webhook delays, non-critical errors
P4	No user impact	Next business day	Monitoring gaps

Error	Cause	Solution
Invalid API Key	Incorrect or expired key	Verify key in Grammarly dashboard
Rate Limited	Exceeded quota	Check quota at https://docs.grammarly.com
Network Error	Firewall blocking	Ensure outbound HTTPS allowed
Module Not Found	Installation failed	Run `npm install` or `pip install` again

Error	Cause	Solution
Module not found	Missing dependency	Run `npm install`
Port in use	Another process	Kill process or change port
Env not loaded	Missing .env.local	Copy from .env.example
Test timeout	Slow network	Increase test timeout

Type	Complexity	Duration	Risk
Fresh install	Low	Days	Low
From competitor	Medium	Weeks	Medium
Major version	Medium	Weeks	Medium
Full replatform	High	Months	High

Environment	Purpose	API Keys	Data
Development	Local dev	Test keys	Sandbox
Staging	Pre-prod validation	Staging keys	Test data
Production	Live traffic	Production keys	Real data

Metric	Type	Description
`grammarlyrequeststotal`	Counter	Total API requests
`grammarlyrequestduration_seconds`	Histogram	Request latency
`grammarlyerrorstotal`	Counter	Error count by type
`grammarlyratelimit_remaining`	Gauge	Rate limit headroom

Alert	Condition	Severity
API Down	5xx errors > 10/min	P1
High Latency	p99 > 5000ms	P2
Rate Limited	429 errors > 5/min	P2
Auth Failures	401/403 errors > 0	P1

grammarly-pack

Installation

Skills (24)

Grammarly CI Integration

Overview

Prerequisites

Instructions

Step 1: Create GitHub Actions Workflow

Step 2: Configure Secrets

Step 3: Add Integration Tests

Output

Error Handling

Examples

Release Workflow

Branch Protection

Resources

Next Steps

Grammarly Common Errors

Overview

Prerequisites

Instructions

Step 1: Identify the Error

Step 2: Find Matching Error Below

Step 3: Apply Solution

Output

Error Handling

Authentication Failed

Rate Limit Exceeded

Network Timeout

Examples

Quick Diagnostic Commands

Escalation Path

Resources

Next Steps

Grammarly Core Workflow A

Overview

Prerequisites

Instructions

Step 1: Initialize

Step 2: Execute

Step 3: Finalize

Output

Error Handling

Examples

Complete Workflow

Common Variations

Resources

Next Steps

Grammarly Core Workflow B

Overview

Prerequisites

Instructions

Step 1: Setup

Step 2: Process

Step 3: Complete

Output

Error Handling

Examples

Complete Workflow

Error Recovery

Resources

Next Steps

Grammarly Cost Tuning

Overview

Prerequisites

Pricing Tiers

Cost Estimation

Usage Monitoring

Cost Reduction Strategies

Step 1: Request Sampling

Step 2: Batching Requests

Step 3: Caching (from P16)

Grammarly Data Handling

Overview

Prerequisites

Data Classification

PII Detection

Data Redaction

Data Retention Policy

Retention Periods