Nodejs Backend Patterns
ever-works/ever-works
Build production-ready Node.js backend services with Express/Fastify, implementing middleware patterns, error handling, authentication, database integration, and API design best practices.
Migrate to Clay from other enrichment tools or consolidate multiple data sources into Clay.
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill clay-migration-deep-dive -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace clay-migration-deep-dive --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/.curated/clay-migration-deep-dive .claude/skills/clay-migration-deep-dive && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "clay-migration-deep-dive" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/clay-migration-deep-dive into .claude/skills/clay-migration-deep-dive/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "clay-migration-deep-dive", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/clay-migration-deep-diveType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill clay-migration-deep-dive -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace clay-migration-deep-dive --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/.curated/clay-migration-deep-dive .agents/skills/clay-migration-deep-dive && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "clay-migration-deep-dive" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/clay-migration-deep-dive into .agents/skills/clay-migration-deep-dive/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "clay-migration-deep-dive", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill clay-migration-deep-dive -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace clay-migration-deep-dive --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/.curated/clay-migration-deep-dive .cursor/skills/clay-migration-deep-dive && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "clay-migration-deep-dive" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/clay-migration-deep-dive into .cursor/skills/clay-migration-deep-dive/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "clay-migration-deep-dive", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/jeremylongshore/tons-of-skills-marketplace.git --path skills/.curated/clay-migration-deep-dive--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill clay-migration-deep-dive -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace clay-migration-deep-dive --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/.curated/clay-migration-deep-dive .gemini/skills/clay-migration-deep-dive && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "clay-migration-deep-dive" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/clay-migration-deep-dive into .gemini/skills/clay-migration-deep-dive/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "clay-migration-deep-dive", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install jeremylongshore/tons-of-skills-marketplace clay-migration-deep-diveInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill clay-migration-deep-dive -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/.curated/clay-migration-deep-dive .github/skills/clay-migration-deep-dive && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "clay-migration-deep-dive" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/clay-migration-deep-dive into .github/skills/clay-migration-deep-dive/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "clay-migration-deep-dive", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill clay-migration-deep-dive -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace clay-migration-deep-dive --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/.curated/clay-migration-deep-dive .opencode/skills/clay-migration-deep-dive && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "clay-migration-deep-dive" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/clay-migration-deep-dive into .opencode/skills/clay-migration-deep-dive/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "clay-migration-deep-dive", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
clay-migration-deep-diveMigrate to Clay from other enrichment tools or consolidate multiple data sources into Clay.
Clay Migration Deep Dive is an agent skill from jeremylongshore/tons-of-skills-marketplace. Migrate to Clay from other enrichment tools or consolidate multiple data sources into Clay. Use when migrating from ZoomInfo, Apollo, Clearbit, or custom enrichment scripts to Clay, or consolidating fragmented enrichment workflows. Trigger with phrases like "migrate to clay", "clay migration", "switch to clay", "replace zoominfo with clay", "consolidate enrichment tools".
Its SKILL.md is about 2.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/implementation-guide.md`). Compatibility notes: Designed for Claude Code
It sits in Backend & APIs, covering GraphQL. The repository describes itself as: Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com. The licence is MIT.
6 steps, taken from the step headings in SKILL.md.
Read from SKILL.md and the folder at commit cfae287. It shows what the files ask for, not the result of running them.
Pre-approves these tools, so the agent can use them without asking each time:
ReadWriteEditBash(curl:*)Bash(npm:*)Bash(node:*)From allowed-tools in the SKILL.md frontmatter.
No scripts in the folder and no shell commands in SKILL.md (its code samples are typescript and yaml).
From the folder's file list and the shell code blocks in SKILL.md.
Links to these hosts (documentation or services it may open):
university.clay.comclay.comFrom URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Designed for Claude Code
From compatibility in the SKILL.md frontmatter.
Clay Migration Deep Dive loads about 2.2k tokens when it runs, and up to ~3k if it reads all its reference files. Until then it costs about 100 tokens; SKILL.md has 379 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
The full file from jeremylongshore/tons-of-skills-marketplace at commit cfae287, republished under its MIT licence (© jeremylongshore). 379 words, ~2,170 tokens.
.claude/skills/clay-migration-deep-dive/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.Comprehensive guide for migrating from standalone enrichment tools (ZoomInfo, Apollo, Clearbit, Lusha) to Clay, or consolidating multiple tools into a single Clay-based pipeline. Clay replaces the need for individual provider subscriptions by aggregating 150+ providers into waterfall enrichment workflows.
| Migration | Complexity | Duration | Risk |
|---|---|---|---|
| Single provider -> Clay | Low | 1-2 weeks | Low |
| Multiple providers -> Clay | Medium | 2-4 weeks | Medium |
| Custom scripts -> Clay | Medium | 2-4 weeks | Medium |
| Full GTM stack migration | High | 1-2 months | High |
// migration/audit.ts — document your current enrichment setup
interface EnrichmentAudit {
provider: string;
monthlyVolume: number;
monthlyCoost: number;
dataFields: string[];
hitRate: number; // % of lookups that return data
integrationMethod: string; // API, CSV, Zapier, native CRM
canExportHistory: boolean;
}
const currentStack: EnrichmentAudit[] = [
{
provider: 'ZoomInfo',
monthlyVolume: 5000,
monthlyCoost: 15000, // ZoomInfo is expensive
dataFields: ['email', 'phone', 'title', 'company', 'revenue'],
hitRate: 75,
integrationMethod: 'API + Salesforce native',
canExportHistory: true,
},
{
provider: 'Apollo.io',
monthlyVolume: 3000,
monthlyCoost: 400,
dataFields: ['email', 'title', 'company', 'linkedin'],
hitRate: 65,
integrationMethod: 'API',
canExportHistory: true,
},
{
provider: 'Custom Python scripts',
monthlyVolume: 1000,
monthlyCoost: 0, // Just developer time
dataFields: ['email', 'company_data'],
hitRate: 40,
integrationMethod: 'Cron job + DB',
canExportHistory: true,
},
];
function generateMigrationReport(stack: EnrichmentAudit[]): void {
const totalCost = stack.reduce((s, p) => s + p.monthlyCoost, 0);
const totalVolume = stack.reduce((s, p) => s + p.monthlyVolume, 0);
console.log(`Current stack: ${stack.length} providers`);
console.log(`Total monthly cost: $${totalCost}`);
console.log(`Total monthly volume: ${totalVolume} lookups`);
console.log(`Average hit rate: ${(stack.reduce((s, p) => s + p.hitRate, 0) / stack.length).toFixed(0)}%`);
console.log(`\nClay equivalent (Growth plan): $495/mo + provider API keys`);
}# migration/field-mapping.yaml
field_mapping:
# Your current field -> Clay enrichment column
email: "Work Email (Waterfall: Apollo > Hunter)"
phone: "Phone Number (Apollo)"
job_title: "Job Title (Apollo/PDL)"
company_name: "Company Name (Clearbit)"
company_revenue: "Revenue (Clearbit)"
employee_count: "Employee Count (Clearbit)"
industry: "Industry (Clearbit)"
tech_stack: "Technologies (BuiltWith via Claygent)"
linkedin: "LinkedIn URL (Apollo)"
# Fields that don't have direct Clay equivalents:
intent_signals: "Use Clay's Web Intent feature (Growth plan)"
custom_research: "Claygent AI research column"Run Clay alongside your existing tools to validate data quality:
// migration/parallel-run.ts
interface ComparisonResult {
field: string;
oldValue: string | null;
clayValue: string | null;
match: boolean;
}
async function compareEnrichment(
email: string,
oldData: Record<string, unknown>,
clayData: Record<string, unknown>,
): Promise<ComparisonResult[]> {
const fieldsToCompare = ['company_name', 'job_title', 'employee_count', 'industry'];
return fieldsToCompare.map(field => ({
field,
oldValue: (oldData[field] as string) || null,
clayValue: (clayData[field] as string) || null,
match: String(oldData[field]).toLowerCase() === String(clayData[field]).toLowerCase(),
}));
}
// Run on a sample of 500 contacts from your CRM
// Compare Clay's enrichment with your current provider's data
// Target: Clay should match or exceed current hit rates# Clay table configuration to replace multi-provider stack
replacement_table:
name: "Outbound Leads (Migrated)"
sources:
- webhook (replaces API calls to ZoomInfo/Apollo)
- CRM import (replaces native CRM enrichment)
- CSV upload (replaces manual processes)
enrichment_columns:
1_company_lookup:
provider: clearbit
replaces: "ZoomInfo company data"
own_api_key: true # 0 Clay credits
2_email_waterfall:
providers: [apollo, hunter]
replaces: "ZoomInfo email + Apollo email"
own_api_keys: true
3_person_enrichment:
provider: apollo
replaces: "Apollo person data"
own_api_key: true
4_ai_research:
type: claygent
replaces: "Custom Python research scripts"
prompt: "Research {{Company Name}} for recent news and tech stack"
5_icp_scoring:
type: formula
replaces: "Custom scoring in Python/SQL"// migration/traffic-shift.ts
interface MigrationConfig {
clayPercentage: number; // 0-100, gradually increase
legacyEnabled: boolean;
}
class MigrationRouter {
constructor(private config: MigrationConfig) {}
shouldUseClay(): boolean {
return Math.random() * 100 < this.config.clayPercentage;
}
async enrichLead(lead: Record<string, unknown>): Promise<Record<string, unknown>> {
if (this.shouldUseClay()) {
return this.enrichViaClay(lead);
}
return this.enrichViaLegacy(lead);
}
}
// Migration schedule:
// Week 4, Day 1: 10% to Clay, 90% legacy
// Week 4, Day 3: 25% to Clay, 75% legacy
// Week 4, Day 5: 50% to Clay, 50% legacy
// Week 5, Day 1: 100% to Clay, legacy disabledAfter full migration and 2-week monitoring:
| Issue | Cause | Solution |
|---|---|---|
| Lower hit rate on Clay | Different provider coverage | Adjust waterfall order, add providers |
| Missing fields | Clay uses different field names | Update field mapping |
| Data format mismatch | Different date/number formats | Add transformation in webhook handler |
| CRM duplicates during parallel | Both systems writing | Deduplicate on email in CRM |
Create a migration receipt with source/target systems, data and consent mapping, field transformations, traffic percentage, comparison metrics, deduplication strategy, owners, approval points, rollback status, and legacy-retirement decision. Do not cancel the old path or delete its evidence until the defined monitoring window proves that the new path satisfies the approved contract.
Shift a staging-compatible source from 10 to 25 percent only after comparing coverage, quality, credit use, and CRM idempotency for the prior cohort. If a field mapping or duplicate error appears, return traffic to the last stable percentage, reconcile the affected records, and correct the transform before advancing the rollout.
For advanced troubleshooting, see clay-advanced-troubleshooting.
© jeremylongshore, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
SKILL.md and 1 other file (references) in skills/.curated/clay-migration-deep-dive of jeremylongshore/tons-of-skills-marketplace.
Open the folder on GitHubat commit cfae287
Clay Migration Deep Dive next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Clay Migration Deep Dive this skilljeremylongshore/tons-of-skills-marketplace | 2.8k | — | ~2.2k | Automated safety check: Pass | MIT | |
| Nodejs Backend Patternsever-works/ever-works | 162 | 18 repos | ~4k | Automated safety check: Pass | AGPL-3.0 | |
| API DesignerJeffallan/claude-skills | 12k | 1 repos | ~2k | Automated safety check: Pass | MIT | |
| GraphQL Operations with CodegenChrisWiles/claude-code-showcase | 6.1k | 3 repos | ~1.5k | Automated safety check: Pass | None | |
| Supabasecurvenote/curvenote | 170 | 5 repos | ~2.2k | Automated safety check: Pass | Custom licence | |
| API Design Principlesjh941213/my-cc-harness | 125 | 18 repos | ~3.4k | Automated safety check: Pass | None |
ever-works/ever-works
Build production-ready Node.js backend services with Express/Fastify, implementing middleware patterns, error handling, authentication, database integration, and API design best practices.
Jeffallan/claude-skills
Designs REST and GraphQL APIs from resource modeling to an OpenAPI 3.1 contract, with versioning, pagination and RFC 7807 error handling.
ChrisWiles/claude-code-showcase
Sets the rules for writing GraphQL queries and mutations in .gql files, running codegen, and using generated Apollo hooks with proper error and loading handling.
curvenote/curvenote
A skill your agent uses when doing ANY task involving Supabase.
jh941213/my-cc-harness
REST 및 GraphQL API 설계 원칙 가이드. An agent skill from jh941213/my-cc-harness.
dzhalaevd/Donatello
Guides stable API and interface design. An agent skill from dzhalaevd/Donatello.
jeremylongshore/tons-of-skills-marketplace
Execute this skill enables AI assistant to conduct a security-focused code review using the security-agent plugin.
jeremylongshore/tons-of-skills-marketplace
Build this skill automates the adaptation of pre-trained machine learning models using transfer learning techniques.
jeremylongshore/tons-of-skills-marketplace
Execute proactive auto-loading: automatically detects and loads agents.md files.
jeremylongshore/tons-of-skills-marketplace
Aggregate and centralize performance metrics from applications, systems, databases, caches, and services.
jeremylongshore/tons-of-skills-marketplace
Execute this skill enables AI assistant to analyze capacity requirements and plan for future growth.
jeremylongshore/tons-of-skills-marketplace
Process use when you need to work with database indexing. An agent skill from jeremylongshore/tons-of-skills-marketplace.
Categories
Migrate to Clay from other enrichment tools or consolidate multiple data sources into Clay. Clay Migration Deep Dive is an agent skill from jeremylongshore/tons-of-skills-marketplace. Migrate to Clay from other enrichment tools or consolidate multiple data sources into Clay.
Clay Migration Deep Dive fits situations like: migrating from ZoomInfo; custom enrichment scripts to Clay; consolidating fragmented enrichment workflows; with phrases like migrate to clay.
Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill clay-migration-deep-dive -a claude-code`. Or copy the skill folder (skills/.curated/clay-migration-deep-dive in jeremylongshore/tons-of-skills-marketplace) into .claude/skills/clay-migration-deep-dive in your project. Claude Code loads it when a task matches its description.
Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill clay-migration-deep-dive -a codex`. Or copy the skill folder (skills/.curated/clay-migration-deep-dive in jeremylongshore/tons-of-skills-marketplace) into .agents/skills/clay-migration-deep-dive in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill clay-migration-deep-dive -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/clay-migration-deep-dive, .gemini/skills/clay-migration-deep-dive, .github/skills/clay-migration-deep-dive and .opencode/skills/clay-migration-deep-dive in your project.
SKILL.md names no scripts, command-line tools or credentials: Clay Migration Deep Dive is instructions for the agent only. Our summary lists: Python 3. Its frontmatter pre-approves these tools: Read, Write, Edit, Bash(curl:*), Bash(npm:*), Bash(node:*). Compatibility (from SKILL.md): Designed for Claude Code.
SKILL.md names 2 domains. As links in the text: university.clay.com and clay.com. This is read from the text; nothing was executed.
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
Clay Migration Deep Dive is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
About 2.2k tokens (SKILL.md is roughly 8.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 845 tokens, read only when the agent opens those files.
Skills that share tags, products or a category with Clay Migration Deep Dive: Nodejs Backend Patterns (ever-works/ever-works, 162 stars), API Designer (Jeffallan/claude-skills, 12k stars), GraphQL Operations with Codegen (ChrisWiles/claude-code-showcase, 6.1k stars) and Supabase (curvenote/curvenote, 170 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
jeremylongshore (a GitHub user) maintains it in jeremylongshore/tons-of-skills-marketplace, which has 2,827 GitHub stars. The repository holds 3,342 skills in this directory. The repository was last updated on October 10, 2026.
Source: jeremylongshore/tons-of-skills-marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.