What is ifttt-build-applet?

A step-by-step guide for building IFTTT Applets, which are automations that do something when a chosen event happens. It covers finding services, selecting triggers and actions, connecting accounts, filling their fields, and creating the Applet.

Creating, editing, or testing automations such as “when this happens, do that,” including service discovery, account connection, trigger and action setup, queries, delays, and Filter Code.

It removes the guesswork from setting up automations and helps ensure that account details and field names match what IFTTT supports. It also explains how information from one step can be passed to another.

ifttt-build-applet — Skill for Claude Code and Codex by IFTTT

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add IFTTT/ifttt-plugins --skill ifttt-build-applet

Clone the repo

git clone --depth 1 https://github.com/IFTTT/ifttt-plugins

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/ifttt/ifttt-plugins/ifttt-build-applet/github.svg)](https://agentmods.dev/skills/ifttt/ifttt-plugins/ifttt-build-applet)

Your own site

<a href="https://agentmods.dev/skills/ifttt/ifttt-plugins/ifttt-build-applet"><img src="https://agentmods.dev/badge/skills/ifttt/ifttt-plugins/ifttt-build-applet/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/ifttt/ifttt-plugins/ifttt-build-applet"><img src="https://agentmods.dev/badge/skills/ifttt/ifttt-plugins/ifttt-build-applet.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 56 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 672 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00056	$0.00672
Opus 5	$0.00028	$0.00336
Sonnet 5	$0.00011	$0.00134
Haiku 4.5	$0.00006	$0.00067

Measured 10d ago against content hash 6c81b162f2db, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

ifttt-build-applet scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/ifttt/skills/ifttt-build-applet/SKILL.md · 39 lines

How it starts

The opening of the file, as written. The whole thing — 39 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Build an IFTTT Applet

When to use

The user describes an automation: "when X happens, do Y"
The user wants to modify, test, or add logic to an existing Applet

Workflow

Find the services. Call search_services with keywords from the user's request to get exact service slugs. Never guess a slug.
Discover the steps. Call get_steps with the trigger service and action service(s) to fetch available triggers, queries, and actions with their field definitions, ingredients, and a ready-made step_template.
Connect missing services. Discovery results include connected and a connect_url when a service isn't connected. Present the connect_url to the user, wait for confirmation, then re-run discovery to pick up their account_id.
Fill the templates. Copy step_template from each chosen step verbatim, then fill in account_id and the step's fields. Action and query fields can reference trigger/query ingredients — use them to pass data between steps.
Create. Call create_applet with name, an optional but recommended description, the trigger, and actions (plus optional queries and actions_delay up to 14,145 seconds). The Applet is created and enabled immediately — tell the user this before calling. On success, share the returned applet_url so the user can view it.
Handle validation errors. A failed create_applet returns structured errors. Fix the referenced fields and retry; don't retry unchanged input.

Editing

Call get_applet first to see the Applet's current configuration, then edit_applet with the changed pieces.
Applets can only be edited if the user owns them. Editing a published community Applet the user enabled may create the user's own copy — relay that to the user when it happens.

Filter Code (Pro+ only)

set_applet_filter_code adds conditional logic between trigger and actions.
Pass a natural-language prompt describing the behavior (e.g. "only run on weekdays") — never pass TypeScript/JavaScript directly; the tool generates the code server-side.
Pass an empty string to clear existing Filter Code.
If the response includes made_it_your_own: true, a new user-owned copy of a community Applet was created — tell the user explicitly and use the new applet_slug going forward.

Read the full file on GitHub · 39 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

10d ago First seen · 39 lines · 56 tokens per session scan A 6c81b162f2db

Subscribe to this mod's changes

ifttt-build-applet is a skill published in the GitHub repository IFTTT/ifttt-plugins (2 stars, last pushed 1mo ago), licensed MIT. It adds 56 tokens to every session and 672 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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