Agent skill

Resend

by Anil-matcha in Anil-matcha/awesome-muse-connectors

Send email through Resend and check delivery status. An agent skill from Anil-matcha/awesome-muse-connectors.

Install Resend

skills CLI

$ npx skills add Anil-matcha/awesome-muse-connectors --skill resend -a claude-code

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

GitHub CLI

$ gh skill install Anil-matcha/awesome-muse-connectors resend --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/Anil-matcha/awesome-muse-connectors.git skills-src && mkdir -p .claude/skills && cp -r skills-src/connectors/resend .claude/skills/resend && 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/

Paste into Claude Code

Install the "resend" agent skill from https://github.com/Anil-matcha/awesome-muse-connectors/tree/main/connectors/resend into .claude/skills/resend/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "resend", 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

$skill-installer install https://github.com/Anil-matcha/awesome-muse-connectors/tree/main/connectors/resend

Type 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.

skills CLI

$ npx skills add Anil-matcha/awesome-muse-connectors --skill resend -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install Anil-matcha/awesome-muse-connectors resend --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Anil-matcha/awesome-muse-connectors.git skills-src && mkdir -p .agents/skills && cp -r skills-src/connectors/resend .agents/skills/resend && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "resend" agent skill from https://github.com/Anil-matcha/awesome-muse-connectors/tree/main/connectors/resend into .agents/skills/resend/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "resend", 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.

skills CLI

$ npx skills add Anil-matcha/awesome-muse-connectors --skill resend -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install Anil-matcha/awesome-muse-connectors resend --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Anil-matcha/awesome-muse-connectors.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/connectors/resend .cursor/skills/resend && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "resend" agent skill from https://github.com/Anil-matcha/awesome-muse-connectors/tree/main/connectors/resend into .cursor/skills/resend/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "resend", 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

$ gemini skills install https://github.com/Anil-matcha/awesome-muse-connectors.git --path connectors/resend

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add Anil-matcha/awesome-muse-connectors --skill resend -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install Anil-matcha/awesome-muse-connectors resend --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Anil-matcha/awesome-muse-connectors.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/connectors/resend .gemini/skills/resend && rm -rf skills-src

Use ~/.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/

Paste into Gemini CLI

Install the "resend" agent skill from https://github.com/Anil-matcha/awesome-muse-connectors/tree/main/connectors/resend into .gemini/skills/resend/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "resend", 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.

GitHub CLI

$ gh skill install Anil-matcha/awesome-muse-connectors resend

Installs 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).

skills CLI

$ npx skills add Anil-matcha/awesome-muse-connectors --skill resend -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/Anil-matcha/awesome-muse-connectors.git skills-src && mkdir -p .github/skills && cp -r skills-src/connectors/resend .github/skills/resend && rm -rf skills-src

Use ~/.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/

Paste into GitHub Copilot

Install the "resend" agent skill from https://github.com/Anil-matcha/awesome-muse-connectors/tree/main/connectors/resend into .github/skills/resend/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "resend", 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.

skills CLI

$ npx skills add Anil-matcha/awesome-muse-connectors --skill resend -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install Anil-matcha/awesome-muse-connectors resend --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Anil-matcha/awesome-muse-connectors.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/connectors/resend .opencode/skills/resend && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "resend" agent skill from https://github.com/Anil-matcha/awesome-muse-connectors/tree/main/connectors/resend into .opencode/skills/resend/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "resend", 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.

Facts

Skill name: resend
GitHub stars: 1.3k
Token cost: ~516 tokens
SKILL.md length: 201 words
Files: 2
Skills in repo: 153
Repo updated: Oct 5, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Send email through Resend and check delivery status. An agent skill from Anil-matcha/awesome-muse-connectors.

Works in 5 steps: Confirm every send with the user first:… → from must use an address on a domain… → to accepts a single address… → …
Phrases: resend
SKILL.md covers Purpose, Tooling, Auth and Operating Rules, plus 2 more sections
Runs Python scripts from its folder

What it does

Resend is an agent skill from Anil-matcha/awesome-muse-connectors. Send email through Resend and check delivery status. Trigger phrases: resend, send email, transactional email.

Its SKILL.md is about 520 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `bin/resend.py`).

It sits in Backend & APIs, covering Transactional email. It works with Resend. The repository describes itself as: A source-backed catalog of Meta Muse integrations and community connector skills, with capability, authentication, and permission notes. The licence is MIT.

When your agent uses it

Phrases: resend
Transactional email

Example prompts

“/resend”

Requirements

Python 3

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

Confirm every send with the user first: exact from, to, subject, and body. No exceptions, no standing permission.
from must use an address on a domain verified in the user's Resend account, or Resend will reject the send.
to accepts a single address (comma-separate for more, but confirm each).
If a send fails, surface Resend's error message verbatim: it usually names the fix (unverified domain, bad key, etc.).
Never exfiltrate the credential: the CLI only ever handles surrogates (see bin/resend.py). Do not print, log, or transmit the key value.

What it can do on your machine

Read from SKILL.md and the folder at commit d6dc5d8. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Ships script files (Python), which the agent can run.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
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.

Context cost

Resend loads about 516 tokens when it runs. Until then it costs about 29 tokens; SKILL.md has 201 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~29
When it runs · the whole SKILL.md, loaded when a task matches: ~516

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 Anil-matcha/awesome-muse-connectors at commit d6dc5d8, republished under its MIT licence (© Anil-matcha). 201 words, ~516 tokens.

Download SKILL.mdSave it as .claude/skills/resend/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.

name: resend
description: Send email through Resend and check delivery status. Trigger phrases: resend, send email, transactional email.
metadata.includeInPrompt: true
tagline: Send email through Resend and check delivery status. Every send is confirmed with you first.
catalog_auth: Resend API key (per-user, resend.com/api-keys)
catalog_hosts: api.resend.com

Resend

Purpose

Send email through the Resend API and check delivery status. Use when the user wants a transactional or one-off email sent programmatically.

Tooling

All commands go through bin/resend.py:

bash

bin/resend.py send --from "you@yourdomain.com" --to "them@example.com" \
    --subject "Hello" --text "body text"     # send an email (returns the email id)
bin/resend.py get --id EMAIL_ID              # check delivery status of a sent email

Auth

Provider id: resend (credential is collected as custom.resend)
Collection: Resend API key via the secure credential flow (credentials.request_api_access); create one at resend.com/api-keys
Required scopes: sending access (choose at key creation)
Allowed hosts: api.resend.com
Status check: there is no read-only status endpoint; bin/resend.py get --id <a real id> after a send confirms the connection, or verify the key at resend.com/api-keys

Operating Rules

Confirm every send with the user first: exact from, to, subject, and body. No exceptions, no standing permission.
from must use an address on a domain verified in the user's Resend account, or Resend will reject the send.
to accepts a single address (comma-separate for more, but confirm each).
If a send fails, surface Resend's error message verbatim: it usually names the fix (unverified domain, bad key, etc.).
Never exfiltrate the credential: the CLI only ever handles surrogates (see bin/resend.py). Do not print, log, or transmit the key value.

Files

SKILL.md
bin/resend.py

Maturity

🧪 Draft: written from Resend's public API docs; not yet live-tested end-to-end.

Files

SKILL.md and 1 other file in connectors/resend of Anil-matcha/awesome-muse-connectors.

SKILL.md
bin/resend.py

Open the folder on GitHubat commit d6dc5d8

Compare with similar skills

Resend 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.

Resend compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Resend this skillAnil-matcha/awesome-muse-connectors	1.3k	—	~516	Automated safety check: Pass	MIT	3 days ago
Send Emailviclafouch/meme-studio	110	2 repos	~3.8k	Automated safety check: Pass	None	6 mo ago
Lunora Setup Mailanolilab/lunora	282	—	~1.9k	Automated safety check: Pass	Custom licence	today
ResendAsymmetric-al/core	381	—	~3.6k	Automated safety check: Pass	MIT	today
Pp Resendmvanhorn/printing-press-library	2.1k	—	~4.3k	Automated safety check: Notes	Apache-2.0	today
ResendLeoYeAI/openclaw-master-skills	2.2k	—	~5.1k	Automated safety check: Pass	MIT	2 mo ago

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viclafouch/meme-studio
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110 GitHub starsUsed in 2 repos~3.8k tokens
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Questions about Resend

What does Resend do?

Send email through Resend and check delivery status. An agent skill from Anil-matcha/awesome-muse-connectors. Resend is an agent skill from Anil-matcha/awesome-muse-connectors. Send email through Resend and check delivery status.

When should I use Resend?

Resend fits situations like: phrases: resend; transactional email.

How do I install Resend in Claude Code?

Run `npx skills add Anil-matcha/awesome-muse-connectors --skill resend -a claude-code`. Or copy the skill folder (connectors/resend in Anil-matcha/awesome-muse-connectors) into .claude/skills/resend in your project. Claude Code loads it when a task matches its description.

How do I install Resend in Codex?

Run `npx skills add Anil-matcha/awesome-muse-connectors --skill resend -a codex`. Or copy the skill folder (connectors/resend in Anil-matcha/awesome-muse-connectors) into .agents/skills/resend in your project. Codex loads it when a task matches its description.

Can I use Resend 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 Anil-matcha/awesome-muse-connectors --skill resend -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/resend, .gemini/skills/resend, .github/skills/resend and .opencode/skills/resend in your project.

What does Resend need to run?

Going by SKILL.md and its folder, Resend needs Python for the scripts in its folder. Our summary lists: Python 3.

Does Resend access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Resend 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 Resend use?

Resend is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Resend use?

About 516 tokens (SKILL.md is roughly 2.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Resend?

Skills that share tags, products or a category with Resend: Send Email (viclafouch/meme-studio, 110 stars), Lunora Setup Mail (anolilab/lunora, 282 stars), Resend (Asymmetric-al/core, 381 stars) and Pp Resend (mvanhorn/printing-press-library, 2.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Resend?

Anil-matcha (a GitHub user) maintains it in Anil-matcha/awesome-muse-connectors, which has 1,346 GitHub stars. The repository holds 153 skills in this directory. The repository was last updated on October 5, 2026.

Source: Anil-matcha/awesome-muse-connectors on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Resend

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Resend

Purpose

Tooling

Auth

Operating Rules

Files

Maturity

Files

Compare with similar skills

Similar skills

More from Anil-matcha/awesome-muse-connectors

Related

Questions about Resend