A workflow for sending an email through the configured Resend account to the account owner's fixed Gmail address. Resend is a service for delivering email from applications.

Use it to send plain-text or formatted summaries, reports, reminders, and other messages to the configured inbox.

It lets the agent deliver a report, reminder, or notification by email without requiring the user to copy and paste it manually.

How jonathanmalkin/jules configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to jonathanmalkin/jules. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/jonathanmalkin/jules/main/.claude/skills/send-email/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/jonathanmalkin/jules

Made for: Claude Code.

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/jonathanmalkin/jules/send-email/github.svg)](https://agentmods.dev/skills/jonathanmalkin/jules/send-email)

Your own site

<a href="https://agentmods.dev/skills/jonathanmalkin/jules/send-email"><img src="https://agentmods.dev/badge/skills/jonathanmalkin/jules/send-email/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/jonathanmalkin/jules/send-email"><img src="https://agentmods.dev/badge/skills/jonathanmalkin/jules/send-email.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 95 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 996 The whole file, excluding the scripts and references it only reads on demand.

Security scan B 1 finding. 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	$0.00095	$0.00996
Opus 5.5	$0.00038	$0.00398
Sonnet 5.5	$0.00019	$0.00199
Haiku 4.5	$0.00010	$0.00100

Measured 2mo ago against content hash 28078e45d5c3, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

send-email scanned grade B with 1 finding 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 2mo 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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

grep -c "\"date\":\"$(date +%Y-%m-%d)\"" ~/.claude/email-send-log.jsonl 2>/dev/null || echo 0

.claude/skills/send-email/SKILL.md · 94 lines

How it starts

The opening of the file, as written. The whole thing — 94 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Critical Constraints

Recipient is hardcoded. [your-email]. Cannot be changed. Cannot email anyone else.
Rate limit: 3 emails per calendar day. Exit code 2 = rate limit hit. Do not retry.
From address: Jules <playbook@[previous-domain]> (verified Resend sender, still active post-rebrand).

Sending Email

Two paths: HTML (rich formatting via markdown pipeline) and plain text (quick notifications).

HTML email (structured content, reports, summaries)

Pipe markdown through build-digest-email.sh into jules-send-email.sh:

echo "## Summary\n\n- Point one\n- Point two\n\n**Key takeaway:** Thing." \
  | bash .claude/scripts/build-digest-email.sh "Report Title" \
  | bash .claude/scripts/jules-send-email.sh --subject "Subject Line" --html -

build-digest-email.sh converts markdown to branded HTML with the caramel/cream template. Pass the report title as the first argument (appears in the header bar). Reads markdown from stdin, outputs HTML to stdout.

Plain text email (quick notes, reminders, notifications)

bash .claude/scripts/jules-send-email.sh --subject "Reminder" --body "Follow up with Michael from AITX this week."

HTML from a file

bash .claude/scripts/jules-send-email.sh --subject "Subject" --html /path/to/body.html

Dry run (preview without sending)

bash .claude/scripts/jules-send-email.sh --subject "Test" --body "anything" --dry-run

Shows recipient, from address, subject, and today's send count. Does not consume a send.

When to Use HTML vs Plain Text

Content	Path
Session notes, briefings, reports, summaries	HTML (markdown pipeline)
Simple reminders, quick notifications, one-liners	Plain text (`--body`)
Anything with headers, lists, tables, or code blocks	HTML (markdown pipeline)

Rate Limit Check

Before sending, check how many emails have been sent today:

grep -c "\"date\":\"$(date +%Y-%m-%d)\"" ~/.claude/email-send-log.jsonl 2>/dev/null || echo 0

Read the full file on GitHub · 94 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

2mo ago First seen · 94 lines · 95 tokens per session scan B 28078e45d5c3

Subscribe to this mod's changes

send-email is a skill published in the GitHub repository jonathanmalkin/jules (67 stars, last pushed 5mo ago), licensed MIT. It adds 95 tokens to every session and 996 once invoked, about $0.0004 per session on Opus 5.5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Productivity

send-email next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
send-emailjonathanmalkin/jules	Skill	67	5mo ago	MIT	B	95	Claude Code
orbit-notionnexu-io/open-design	Skill	106k	yesterday	Apache-2.0	A	117	Claude Code, Codex
agentmailpaperclipai/paperclip	Skill	111k	yesterday	MIT	A	30	Claude Code, Codex
Cortexdanielmiessler/LifeOS	Skill	20k	yesterday	MIT	A	184	Claude Code
rowboat-spacesrowboatlabs/rowboat	Skill	18k	yesterday	Apache-2.0	A	60	Claude Code, Codex
feishuHmbown/CodeWhale	Skill	41k	5d ago	MIT	A	33	Claude Code, Codex
pinchtab-mcppinchtab/pinchtab	Skill	11k	10d ago	MIT	A	52	Claude Code, Codex

jules: Skill for Claude Code