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Agent skill

Evernote Reference Architecture

by jeremylongshore in jeremylongshore/tons-of-skills-marketplace

Reference architecture for Evernote integrations. An agent skill from jeremylongshore/tons-of-skills-marketplace.

MITAuto-check passedBackend & APIs

Install Evernote Reference Architecture

skills CLI
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill evernote-reference-architecture -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install jeremylongshore/tons-of-skills-marketplace evernote-reference-architecture --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ 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/evernote-reference-architecture .claude/skills/evernote-reference-architecture && rm -rf skills-src

Use ~/.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/

Facts

Skill name
evernote-reference-architecture
GitHub stars
2.8k
Token cost
~1.2k tokens
SKILL.md length
360 words
Files
2 (incl. references)
Skills in repo
3,342
Repo updated
First seen
Licence
MIT

At a glance

Reference architecture for Evernote integrations. An agent skill from jeremylongshore/tons-of-skills-marketplace.

  • Designing system architecture
  • SKILL.md covers Overview, Prerequisites, Instructions and Output, plus 4 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • Planning integrations

What it does

Evernote Reference Architecture is an agent skill from jeremylongshore/tons-of-skills-marketplace. Reference architecture for Evernote integrations. Use when designing system architecture, planning integrations, or building scalable Evernote applications. Trigger with phrases like "evernote architecture", "design evernote system", "evernote integration pattern", "evernote scale".

Its SKILL.md is about 1.2k 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 Third-party API integration. It works with Redis. 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.

When your agent uses it

  • Designing system architecture
  • Planning integrations
  • Building scalable Evernote applications
  • With phrases like evernote architecture

Example prompts

  • “evernote architecture”
  • “design evernote system”
  • “evernote integration pattern”
  • “/evernote-reference-architecture”

Requirements

  • Compatibility (from SKILL.md): Designed for Claude Code
  • Pre-approved tools (allowed-tools): Read, Write, Edit, Grep

What it can do on your machine

Read from SKILL.md and the folder at commit cfae287. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Read
    • Write
    • Edit
    • Grep

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are javascript).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Links to these hosts (documentation or services it may open):

    • dev.evernote.com
    • 12factor.net
    • redis.io

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

  • Compatibility

    Designed for Claude Code

    From compatibility in the SKILL.md frontmatter.

Context cost

Evernote Reference Architecture loads about 1.2k tokens when it runs, and up to ~5.3k if it reads all its reference files. Until then it costs about 79 tokens; SKILL.md has 360 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~79
When it runs · the whole SKILL.md, loaded when a task matches
~1.2k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~5.3k

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.

Safety

Auto-check passed

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.

SKILL.md

The full file from jeremylongshore/tons-of-skills-marketplace at commit cfae287, republished under its MIT licence (© jeremylongshore). 360 words, ~1,156 tokens.

Download SKILL.mdSave it as .claude/skills/evernote-reference-architecture/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
evernote-reference-architecture
description
Reference architecture for Evernote integrations. Use when designing system architecture, planning integrations, or building scalable Evernote applications. Trigger with phrases like "evernote architecture", "design evernote system", "evernote integration pattern", "evernote scale".
allowed-tools
Read, Write, Edit, Grep
compatibility
Designed for Claude Code
version
1.13.0
license
MIT
author
Jeremy Longshore <jeremy@intentsolutions.io>
tags
saas, evernote, scaling

Evernote Reference Architecture

Overview

Production-ready architecture patterns for building scalable, maintainable Evernote integrations. Covers service layer design, caching strategy, sync architecture, and deployment topology.

Prerequisites

  • Understanding of microservices or modular monolith architecture
  • Cloud platform familiarity (AWS, GCP, or Azure)
  • Knowledge of message queues and caching

Instructions

Architecture Layers
Client Layer    [Web App / Mobile / CLI]
                        |
API Layer       [Express/Fastify REST API]
                        |
Service Layer   [NoteService | SearchService | SyncService]
                        |
Integration     [EvernoteClient (rate-limited, instrumented)]
                        |
Infrastructure  [Redis Cache | PostgreSQL | Message Queue]
Service Layer Design

Separate concerns into focused services:

  • NoteService: CRUD operations, ENML formatting, tag management
  • SearchService: Query building, pagination, result enrichment
  • SyncService: Webhook handling, incremental sync, conflict resolution
  • AuthService: OAuth flow, token storage, refresh logic
javascript
// services/index.js - Service registry
class ServiceRegistry {
  constructor(noteStore, cache, db) {
    this.notes = new NoteService(noteStore);
    this.search = new SearchService(noteStore, cache);
    this.sync = new SyncService(noteStore, db);
  }
}
Caching Strategy

Cache at two levels: in-memory LRU for hot data (note metadata, user info) and Redis for shared state (notebook lists, tag lists, sync checkpoints). Invalidate on webhook notification.

Sync Architecture

Use webhooks as the primary change notification channel. Fall back to polling when webhooks are unavailable. Process changes through a message queue for reliability and retry. Store sync state (USN) in the database for crash recovery.

Evernote Webhook → API Gateway → Message Queue → Sync Worker → Database
                                                      ↓
                                              Evernote API (fetch changes)
Database Schema

Store mirrored Evernote data locally for fast reads. Key tables: users (token, expiration), notebooks, notes (content, metadata), tags, resources (metadata, file path), sync_state (user_id, last_usn).

For the complete architecture diagrams, service implementations, database schema, and scaling guidelines, see Implementation Guide.

Output

  • Layered architecture with clear separation of concerns
  • Service registry pattern for dependency management
  • Two-level caching strategy (in-memory + Redis)
  • Webhook-first sync architecture with polling fallback
  • Database schema for local data mirroring
  • Message queue integration for reliable event processing
Show full SKILL.md (129 more words)Show less

Error Handling

Failure ModeImpactMitigation
Evernote API outageAll sync stopsCircuit breaker, serve cached data
Redis downIncreased API call rateFall through to direct API, in-memory fallback
Database failureCannot persist sync stateQueue events, replay after recovery
Message queue failureWebhook events lostPolling fallback, periodic full sync

Resources

Next Steps

For multi-environment setup, see evernote-multi-env-setup.

Examples

Note-taking SaaS: Build a web app where users connect their Evernote account via OAuth, sync notes to a local database, provide full-text search via PostgreSQL, and push changes back to Evernote.

Team dashboard: Aggregate notes from multiple Evernote Business users into a shared dashboard. Use the sync architecture to keep data fresh. Cache notebook/tag lookups for sub-100ms response times.

© jeremylongshore, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file (references) in skills/.curated/evernote-reference-architecture of jeremylongshore/tons-of-skills-marketplace.

  • SKILL.md
  • references/implementation-guide.md

Open the folder on GitHubat commit cfae287

Compare with similar skills

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Configuring Horizoncoollabsio/coolify63k4 repos~898Automated safety check: PassMIT
Sub2API AdminWei-Shaw/sub2api44k1 repos~717Automated safety check: PassLGPL-3.0
Firecrawl Build Onboardingfirecrawl/firecrawl190k1 repos~1.4kAutomated safety check: NotesISC
ToolJet Marketplace Plugin BuilderToolJet/ToolJet41k—~2.1kAutomated safety check: PassAGPL-3.0

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Works with

Categories

Questions about Evernote Reference Architecture

What does Evernote Reference Architecture do?

Reference architecture for Evernote integrations. An agent skill from jeremylongshore/tons-of-skills-marketplace. Evernote Reference Architecture is an agent skill from jeremylongshore/tons-of-skills-marketplace. Reference architecture for Evernote integrations.

When should I use Evernote Reference Architecture?

Evernote Reference Architecture fits situations like: designing system architecture; planning integrations; building scalable Evernote applications; with phrases like evernote architecture.

How do I install Evernote Reference Architecture in Claude Code?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill evernote-reference-architecture -a claude-code`. Or copy the skill folder (skills/.curated/evernote-reference-architecture in jeremylongshore/tons-of-skills-marketplace) into .claude/skills/evernote-reference-architecture in your project. Claude Code loads it when a task matches its description.

How do I install Evernote Reference Architecture in Codex?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill evernote-reference-architecture -a codex`. Or copy the skill folder (skills/.curated/evernote-reference-architecture in jeremylongshore/tons-of-skills-marketplace) into .agents/skills/evernote-reference-architecture in your project. Codex loads it when a task matches its description.

Can I use Evernote Reference Architecture in Cursor, Gemini CLI or GitHub Copilot?

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 evernote-reference-architecture -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/evernote-reference-architecture, .gemini/skills/evernote-reference-architecture, .github/skills/evernote-reference-architecture and .opencode/skills/evernote-reference-architecture in your project.

What does Evernote Reference Architecture need to run?

SKILL.md names no scripts, command-line tools or credentials: Evernote Reference Architecture is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Write, Edit, Grep. Compatibility (from SKILL.md): Designed for Claude Code.

Does Evernote Reference Architecture access the network?

SKILL.md names 3 domains. As links in the text: dev.evernote.com, 12factor.net and redis.io. This is read from the text; nothing was executed.

Is Evernote Reference Architecture safe to install?

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.

What licence does Evernote Reference Architecture use?

Evernote Reference Architecture is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Evernote Reference Architecture use?

About 1.2k tokens (SKILL.md is roughly 4.6k 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 4.2k tokens, read only when the agent opens those files.

What are the alternatives to Evernote Reference Architecture?

Skills that share tags, products or a category with Evernote Reference Architecture: Write Tests (ryokun6/ryos, 1.3k stars), Configuring Horizon (coollabsio/coolify, 63k stars), Sub2API Admin (Wei-Shaw/sub2api, 44k stars) and Firecrawl Build Onboarding (firecrawl/firecrawl, 190k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Evernote Reference Architecture?

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.