Agent skill
by jeremylongshore in jeremylongshore/tons-of-skills-marketplace
Optimize Klaviyo API performance with caching, batching, and pagination tuning.
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill klaviyo-performance-tuning -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace klaviyo-performance-tuning --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/klaviyo-performance-tuning .claude/skills/klaviyo-performance-tuning && 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 "klaviyo-performance-tuning" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/klaviyo-performance-tuning into .claude/skills/klaviyo-performance-tuning/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "klaviyo-performance-tuning", 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/klaviyo-performance-tuningType 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 klaviyo-performance-tuning -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace klaviyo-performance-tuning --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/klaviyo-performance-tuning .agents/skills/klaviyo-performance-tuning && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "klaviyo-performance-tuning" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/klaviyo-performance-tuning into .agents/skills/klaviyo-performance-tuning/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "klaviyo-performance-tuning", 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 klaviyo-performance-tuning -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace klaviyo-performance-tuning --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/klaviyo-performance-tuning .cursor/skills/klaviyo-performance-tuning && 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 "klaviyo-performance-tuning" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/klaviyo-performance-tuning into .cursor/skills/klaviyo-performance-tuning/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "klaviyo-performance-tuning", 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/klaviyo-performance-tuning--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 klaviyo-performance-tuning -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace klaviyo-performance-tuning --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/klaviyo-performance-tuning .gemini/skills/klaviyo-performance-tuning && 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 "klaviyo-performance-tuning" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/klaviyo-performance-tuning into .gemini/skills/klaviyo-performance-tuning/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "klaviyo-performance-tuning", 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 klaviyo-performance-tuningInstalls 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 klaviyo-performance-tuning -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/klaviyo-performance-tuning .github/skills/klaviyo-performance-tuning && 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 "klaviyo-performance-tuning" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/klaviyo-performance-tuning into .github/skills/klaviyo-performance-tuning/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "klaviyo-performance-tuning", 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 klaviyo-performance-tuning -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 klaviyo-performance-tuning --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/klaviyo-performance-tuning .opencode/skills/klaviyo-performance-tuning && 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 "klaviyo-performance-tuning" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/klaviyo-performance-tuning into .opencode/skills/klaviyo-performance-tuning/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "klaviyo-performance-tuning", 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.
klaviyo-performance-tuningOptimize Klaviyo API performance with caching, batching, and pagination tuning.
Klaviyo Performance Tuning is an agent skill from jeremylongshore/tons-of-skills-marketplace. Optimize Klaviyo API performance with caching, batching, and pagination tuning. Use when experiencing slow API responses, implementing caching strategies, or optimizing request throughput for Klaviyo integrations. Trigger with phrases like "klaviyo performance", "optimize klaviyo", "klaviyo latency", "klaviyo caching", "klaviyo slow", "klaviyo batch".
Its SKILL.md is about 1.6k tokens, which your agent loads only when the skill is triggered. The skill folder holds 3 other files, including reference files (for example `references/examples.md` and `references/implementation.md`). Compatibility notes: Designed for Claude Code
It sits in Marketing & SEO, covering Email marketing and Caching. 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:
ReadWriteEditFrom allowed-tools in the SKILL.md frontmatter.
No scripts in the folder and no shell commands in SKILL.md (its code samples are typescript).
From the folder's file list and the shell code blocks in SKILL.md.
Links to these hosts (documentation or services it may open):
github.comdevelopers.klaviyo.comjsonapi.orgFrom 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.
Klaviyo Performance Tuning loads about 1.6k tokens when it runs, and up to ~3.9k if it reads all its reference files. Until then it costs about 95 tokens; SKILL.md has 601 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). 601 words, ~1,636 tokens.
.claude/skills/klaviyo-performance-tuning/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.Optimize Klaviyo API performance with response caching, request batching, cursor-based pagination, sparse fieldsets, and connection pooling. This skill diagnoses where an integration is slow, then applies the right technique — payload reduction, memory caching, bounded pagination, request coalescing, or rate-limit-aware concurrency.
Read this file for the workflow and the decision guide. Full, copy-pasteable code for every step lives in references/implementation.md; combined real-world scenarios live in references/examples.md.
klaviyo-api SDK installeddataloader, p-queue, lru-cache| Operation | Typical Latency | Max Page Size |
|---|---|---|
| Get Profile by ID | 50-150ms | N/A |
| Get Profiles (list) | 100-300ms | 20 (default), 100 (some endpoints) |
| Create Profile | 100-200ms | N/A |
| Create Event | 50-100ms | N/A |
| Get Segment Profiles | 200-500ms | 20 |
| Campaign Operations | 200-500ms | 20 |
Apply the techniques in order — each is independent, so start with the one that matches your bottleneck. Every step below has a full implementation in references/implementation.md.
Klaviyo supports JSON:API sparse fieldsets — request only the fields you need instead of the 20+ default attributes. This is the cheapest win and applies to every read.
// GOOD: Only fetch the fields you use (much smaller payload)
const profiles = await profilesApi.getProfiles({
fieldsProfile: ['email', 'first_name', 'created'], // snake_case = API names
});Wrap read calls in an LRUCache keyed by query, with per-resource TTLs (profiles 5 min, segments 15 min — they change less often). See the caching implementation in references/implementation.md.
Use a fetchAllPages helper that follows the links.next cursor with a maxPages ceiling so large exports terminate predictably. See the pagination implementation in references/implementation.md.
Coalesce many getProfile(id) calls in a single tick into concurrency-controlled requests with DataLoader (maxBatchSize: 10, 50 ms window). See the batching implementation in references/implementation.md.
Drive bulk writes through a PQueue capped at 50 req/s — a safe margin under the 75 req/s burst limit — with progress logging. See the concurrency implementation in references/implementation.md.
Wrap calls in measuredCall and read a p95 summary via getPerfSummary to find the real bottleneck before optimizing. See the monitoring implementation in references/implementation.md.
Applying this skill produces:
src/klaviyo/cache.ts) that serves repeated reads from memory with per-resource TTLs.src/klaviyo/pagination.ts) that safely walks cursor-paginated endpoints to completion under a maxPages guard.src/klaviyo/perf-monitor.ts) emitting per-operation avg, p95, and count so you can verify the gains.| Issue | Cause | Solution |
|---|---|---|
| Cache stampede | Many requests on cache miss | Use stale-while-revalidate pattern |
| Pagination timeout | Very large datasets | Set maxPages limit, process in chunks |
| Rate limit on bulk ops | Too much concurrency | Reduce PQueue concurrency/intervalCap |
| Slow filter queries | Complex filter expressions | Simplify filters, use segment IDs instead |
Worked, end-to-end scenarios that combine the steps above are in references/examples.md:
PQueue concurrency under the rate limit.measuredCall + getPerfSummary to find the slow op first.Minimal caching example (full versions in the reference):
import { cachedKlaviyoCall } from './cache';
const profile = await cachedKlaviyoCall(
`profile:${email}`,
() => profilesApi.getProfiles({ filter: `equals(email,"${email}")` }),
5 * 60 * 1000 // 5 minute TTL
);Once reads are cached and bulk writes are rate-limit-safe, profile the workload with getPerfSummary (Step 6) to confirm the p95 improvement, then tune TTLs and concurrency to your traffic. For cost optimization of the same integration, see the klaviyo-cost-tuning skill.
© 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 2 other files (references) in skills/.curated/klaviyo-performance-tuning of jeremylongshore/tons-of-skills-marketplace.
Open the folder on GitHubat commit cfae287
Klaviyo Performance Tuning 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 |
|---|---|---|---|---|---|---|
| Klaviyo Performance Tuning this skilljeremylongshore/tons-of-skills-marketplace | 2.8k | — | ~1.6k | Automated safety check: Pass | MIT | |
| Email Quality Auditoraaron-he-zhu/aaron-marketing-skills | 2.9k | 2 repos | ~2.1k | Automated safety check: Pass | Apache-2.0 | |
| Klaviyo Analystthatrebeccarae/claude-marketing | 161 | — | ~5k | Automated safety check: Notes | MIT | |
| Smartlead Spintaxgrowthenginenowoslawski/coldoutboundskills | 753 | — | ~1.8k | Automated safety check: Pass | MIT | |
| MailchimpCraftOS-dev/CraftBot | 392 | 1 repos | ~5.9k | Automated safety check: Pass | MIT | |
| Sequenzy Email Marketingdavepoon/buildwithclaude | 3.6k | — | ~1.7k | Automated safety check: Pass | MIT |
aaron-he-zhu/aaron-marketing-skills
A skill your agent uses when the user asks to "audit an email program" or "is this campaign safe to send"; runs a typed 20-item SEND profile with authentication, consent, opt-out, and claim veto…
thatrebeccarae/claude-marketing
Klaviyo marketing operations and analyst expertise. An agent skill from thatrebeccarae/claude-marketing.
growthenginenowoslawski/coldoutboundskills
Adds Smartlead-compatible spintax to cold email sequences for deliverability.
CraftOS-dev/CraftBot
Mailchimp Marketing API integration with managed OAuth. An agent skill from CraftOS-dev/CraftBot.
davepoon/buildwithclaude
Agent guide for operating Sequenzy. An agent skill from davepoon/buildwithclaude.
ccashwell/evm-cortex
A skill your agent uses when implementing EIP-712 typed structured data signing.
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
Optimize Klaviyo API performance with caching, batching, and pagination tuning. Klaviyo Performance Tuning is an agent skill from jeremylongshore/tons-of-skills-marketplace. Optimize Klaviyo API performance with caching, batching, and pagination tuning.
Klaviyo Performance Tuning fits situations like: experiencing slow API responses; implementing caching strategies; optimizing request throughput for Klaviyo integrations; with phrases like klaviyo performance.
Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill klaviyo-performance-tuning -a claude-code`. Or copy the skill folder (skills/.curated/klaviyo-performance-tuning in jeremylongshore/tons-of-skills-marketplace) into .claude/skills/klaviyo-performance-tuning in your project. Claude Code loads it when a task matches its description.
Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill klaviyo-performance-tuning -a codex`. Or copy the skill folder (skills/.curated/klaviyo-performance-tuning in jeremylongshore/tons-of-skills-marketplace) into .agents/skills/klaviyo-performance-tuning 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 klaviyo-performance-tuning -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/klaviyo-performance-tuning, .gemini/skills/klaviyo-performance-tuning, .github/skills/klaviyo-performance-tuning and .opencode/skills/klaviyo-performance-tuning in your project.
SKILL.md names no scripts, command-line tools or credentials: Klaviyo Performance Tuning is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Write, Edit. Compatibility (from SKILL.md): Designed for Claude Code.
SKILL.md names 3 domains. As links in the text: github.com, developers.klaviyo.com and jsonapi.org. 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.
Klaviyo Performance Tuning is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
About 1.6k tokens (SKILL.md is roughly 6.5k 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 2.3k tokens, read only when the agent opens those files.
Skills that share tags, products or a category with Klaviyo Performance Tuning: Email Quality Auditor (aaron-he-zhu/aaron-marketing-skills, 2.9k stars), Klaviyo Analyst (thatrebeccarae/claude-marketing, 161 stars), Smartlead Spintax (growthenginenowoslawski/coldoutboundskills, 753 stars) and Mailchimp (CraftOS-dev/CraftBot, 392 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.
