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Agent skill

Lindy Hello World

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

Create your first Lindy AI agent with a real trigger and action.

MITAuto-check passedBackend & APIs

Install Lindy Hello World

skills CLI
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill lindy-hello-world -a claude-code

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

GitHub CLI
$ gh skill install jeremylongshore/tons-of-skills-marketplace lindy-hello-world --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/lindy-hello-world .claude/skills/lindy-hello-world && 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
lindy-hello-world
GitHub stars
2.8k
Token cost
~1.4k tokens
SKILL.md length
537 words
Files
2 (incl. references)
Skills in repo
3,342
Repo updated
First seen
Licence
MIT

At a glance

Create your first Lindy AI agent with a real trigger and action.

  • Works in 6 steps: Create Agent via Dashboard → Configure the Webhook Trigger → Add the Slack Action → …
  • Starting with Lindy
  • SKILL.md covers Overview, Prerequisites, Instructions and Output, plus 9 more sections
  • Calls curl; reaches public.lindy.ai

What it does

Lindy Hello World is an agent skill from jeremylongshore/tons-of-skills-marketplace. Create your first Lindy AI agent with a real trigger and action. Use when starting with Lindy, testing your setup, or learning basic agent workflow patterns. Trigger with phrases like "lindy hello world", "lindy example", "lindy quick start", "simple lindy agent", "first lindy".

Its SKILL.md is about 1.4k 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 Webhooks. It works with Slack. 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

  • Starting with Lindy
  • Testing your setup
  • Learning basic agent workflow patterns
  • With phrases like lindy hello world

Example prompts

  • “lindy hello world”
  • “lindy example”
  • “lindy quick start”
  • “/lindy-hello-world”

Requirements

  • A credential in YOUR_SECRET
  • Compatibility (from SKILL.md): Designed for Claude Code
  • Pre-approved tools (allowed-tools): Read, Write, Edit, Bash(curl:*)

Workflow steps

6 steps, taken from the step headings in SKILL.md.

  1. Create Agent via Dashboard
  2. Configure the Webhook Trigger
  3. Add the Slack Action
  4. Set the Agent Prompt
  5. Test It
  6. Verify in Dashboard

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
    • Bash(curl:*)

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • curl

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

  • Network

    Hosts in commands or code, which the agent is likely to contact:

    • public.lindy.ai

    Also links to:

    • lindy.ai
    • docs.lindy.ai

    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

Lindy Hello World loads about 1.4k tokens when it runs, and up to ~2.1k if it reads all its reference files. Until then it costs about 74 tokens; SKILL.md has 537 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~74
When it runs · the whole SKILL.md, loaded when a task matches
~1.4k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~2.1k

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). 537 words, ~1,422 tokens.

Download SKILL.mdSave it as .claude/skills/lindy-hello-world/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
lindy-hello-world
description
Create your first Lindy AI agent with a real trigger and action. Use when starting with Lindy, testing your setup, or learning basic agent workflow patterns. Trigger with phrases like "lindy hello world", "lindy example", "lindy quick start", "simple lindy agent", "first lindy".
allowed-tools
Read, Write, Edit, Bash(curl:*)
compatibility
Designed for Claude Code
version
1.20.0
license
MIT
author
Jeremy Longshore <jeremy@intentsolutions.io>
tags
saas, lindy, api, testing

Lindy Hello World

Overview

Build a minimal Lindy AI agent: Webhook Received trigger -> LLM processing -> Slack notification. Demonstrates the three core building blocks every Lindy agent uses: Trigger, Agent Step (prompt + model + skills), and Action.

Prerequisites

  • Lindy account at
  • Slack workspace connected (or Gmail for email variant)
  • Completed lindy-install-auth setup

Instructions

Step 1: Create Agent via Dashboard

  1. Click "New Agent" at

  2. In the prompt field ("How can I help you?"), type:

    When I send a webhook, summarize the message and post it to Slack

  3. Agent Builder auto-generates the workflow with trigger + action nodes

Step 2: Configure the Webhook Trigger

  1. Click the trigger node at the top of the workflow canvas

  2. Select Webhook Received

  3. Copy the generated URL:

    https://public.lindy.ai/api/v1/webhooks/<unique-id>

  4. Click Generate Secret — copy immediately (shown once)

Step 3: Add the Slack Action
  1. Click "+" to add a step
  2. Search for Slack Send Channel Message
  3. Authorize your Slack workspace when prompted
  4. Configure fields:

    • Channel: #general (or test channel)

    • Message field mode: AI Prompt

    • Instruction:

      Summarize the webhook payload in one sentence.
Payload: {{webhook_received.request.body}}
Step 4: Set the Agent Prompt

Open Settings > Prompt:

You are a webhook summarizer. When you receive a webhook payload,
extract the key information and create a concise one-sentence summary.
Be factual and specific. Do not add opinions or speculation.
Step 5: Test It
bash
curl -X POST "https://public.lindy.ai/api/v1/webhooks/YOUR_ID" \
  -H "Authorization: Bearer YOUR_SECRET" \
  -H "Content-Type: application/json" \
  -d '{
    "event": "order.created",
    "customer": "Jane Doe",
    "amount": 149.99,
    "items": ["Widget Pro", "Adapter Cable"]
  }'

Expected Slack message:

Jane Doe placed a $149.99 order for Widget Pro and Adapter Cable.

Step 6: Verify in Dashboard

Navigate to the Tasks tab in your agent view. Confirm status shows Completed. Click into the task to see each step's input/output for debugging.

Output

The finished agent accepts the test webhook, creates one completed Lindy task, and posts one concise Slack summary without exposing the webhook secret. Keep the agent URL, task ID, and sanitized test payload as the setup receipt so the workflow can be retested after changes.

Examples

Send an order.created event to a test-only webhook and confirm that the configured Slack channel receives “Jane Doe placed a $149.99 order for Widget Pro and Adapter Cable.” If the request returns 401, replace the placeholder secret with the webhook secret generated for that same agent rather than a different workspace credential.

Show full SKILL.md (214 more words)Show less

Agent Anatomy

ComponentPurposeHello World Value
PromptCore behavioral instructions"Summarize webhook payloads"
ModelAI engine powering decisionsDefault (GPT-4 / Claude / Gemini)
SkillsAvailable actions & toolsSlack Send Channel Message
Exit ConditionsWhen the task is "done"Message sent successfully

Webhook Data Variables

VariableContents
{{webhook_received.request.body}}Full JSON payload
{{webhook_received.request.headers}}HTTP request headers
{{webhook_received.request.query}}URL query parameters

Field Configuration Modes

ModeBehaviorCredit Cost
AutoAgent determines value from contextStandard
AI PromptNatural language instructions generate contentStandard
Set ManuallyExact value, no AI processingLower

Variant: Email Instead of Slack

Replace the Slack action with Gmail Send Email:

  • To: Set manually or reference a webhook field
  • Subject: AI Prompt — "Summary: {{webhook_received.request.body.event}}"
  • Body: AI Prompt — "Summarize this event: {{webhook_received.request.body}}"

Error Handling

IssueCauseSolution
Webhook returns 401Missing Authorization headerAdd Bearer <secret> header
Slack message not sentChannel not authorizedRe-authorize Slack in Lindy
Task shows "Failed"Action misconfiguredCheck field references in step config
No task createdAgent not activePublish/activate the agent
Empty summaryPayload not reaching LLMVerify {{webhook_received.request.body}} reference

Cost

~1-3 credits per invocation on basic models. Free tier (400 credits/month) supports ~130-400 test runs per month.

Resources

Next Steps

Proceed to lindy-core-workflow-a for a full multi-step agent workflow.

© 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/lindy-hello-world of jeremylongshore/tons-of-skills-marketplace.

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

Open the folder on GitHubat commit cfae287

Compare with similar skills

Lindy Hello World 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.

Lindy Hello World compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Lindy Hello World this skilljeremylongshore/tons-of-skills-marketplace2.8k—~1.4kAutomated safety check: PassMIT
Channel Debug Corevercel-labs/vercel-openclaw-archived117—~2kAutomated safety check: NotesMIT
Frontmcp Channelsagentfront/frontmcp146—~3.7kAutomated safety check: PassApache-2.0
Add OAuth Integrationrome-os/rome748—~3.6kAutomated safety check: PassMIT
Chat SDK Botslobehub/lobehub83k—~1.5kAutomated safety check: PassCustom licence
Workspace APIfriday-platform/friday-studio104—~9.3kAutomated safety check: NotesCustom licence

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Works with

Categories

Questions about Lindy Hello World

What does Lindy Hello World do?

Create your first Lindy AI agent with a real trigger and action. Lindy Hello World is an agent skill from jeremylongshore/tons-of-skills-marketplace. Create your first Lindy AI agent with a real trigger and action.

When should I use Lindy Hello World?

Lindy Hello World fits situations like: starting with Lindy; testing your setup; learning basic agent workflow patterns; with phrases like lindy hello world.

How do I install Lindy Hello World in Claude Code?

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

How do I install Lindy Hello World in Codex?

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

Can I use Lindy Hello World 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 lindy-hello-world -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/lindy-hello-world, .gemini/skills/lindy-hello-world, .github/skills/lindy-hello-world and .opencode/skills/lindy-hello-world in your project.

What does Lindy Hello World need to run?

Going by SKILL.md and its folder, Lindy Hello World needs the command-line tools its instructions call (curl). Our summary lists: A credential in YOUR_SECRET. Its frontmatter pre-approves these tools: Read, Write, Edit, Bash(curl:*). Compatibility (from SKILL.md): Designed for Claude Code.

Does Lindy Hello World access the network?

SKILL.md names 3 domains. In commands or code: public.lindy.ai; the agent is likely to contact it when it follows the instructions. As links in the text: lindy.ai and docs.lindy.ai. This is read from the text; nothing was executed.

Is Lindy Hello World 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 Lindy Hello World use?

Lindy Hello World 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 Lindy Hello World use?

About 1.4k tokens (SKILL.md is roughly 5.7k 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 651 tokens, read only when the agent opens those files.

What are the alternatives to Lindy Hello World?

Skills that share tags, products or a category with Lindy Hello World: Channel Debug Core (vercel-labs/vercel-openclaw-archived, 117 stars), Frontmcp Channels (agentfront/frontmcp, 146 stars), Add OAuth Integration (rome-os/rome, 748 stars) and Chat SDK Bots (lobehub/lobehub, 83k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Lindy Hello World?

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.