email

email is a skill for Claude Code from WillInvest/ClaudeX. It costs 109 tokens per session (1,832 once invoked), scanned A, original, MIT.

An email-only broadcast tool for sending the current brainstorming question and a short context summary to a configured discussion panel. It does not collect, match, or summarize replies.

In plain words
What is it for?
Sending a brainstorming question to selected panel members using a saved email list, so they can respond remotely or during the meeting.
Why use it?
It lets participants read the question on their own devices during a screen-shared meeting without interrupting the discussion. Replies still need to arrive by email or be spoken aloud.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: reads .claude/ paths.

Part of the claudex plugin — 5 skills, 2 hooks shipped together

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.

agentmods
npx agentmods add skills/willinvest/claudex/email
Any agent
npx skills add WillInvest/ClaudeX --skill email
Clone the repo
git clone --depth 1 https://github.com/WillInvest/ClaudeX

Made for: Claude Code.

Or install claudex, the plugin that ships this one along with the rest of its 5 skills, 2 hooks.

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.

agentmods badge for email

README.md
[![agentmods](https://agentmods.dev/badge/skills/willinvest/claudex/email.svg)](https://agentmods.dev/skills/willinvest/claudex/email)
Your own site
<a href="https://agentmods.dev/skills/willinvest/claudex/email"><img src="https://agentmods.dev/badge/skills/willinvest/claudex/email.svg" alt="Measured on agentmods" height="20"></a>
Per session 109 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,832 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00109 $0.01832
Opus 5 $0.00055 $0.00916
Sonnet 5 $0.00022 $0.00366
Haiku 4.5 $0.00011 $0.00183

Measured 6d ago against content hash 663991bc3650, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

email 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 6d 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.

skills/email/SKILL.md · 138 lines

How it starts

The opening of the file, as written. The whole thing — 138 lines — stays where its author put it; the contents beside it link to each section on GitHub.

claudex:email — broadcast a brainstorm question to your panel

Send-only. Emails the current question + a short context snapshot to a panel defined in ~/.claude/claudex/panel.json, so people can read it on their own device during a screen-shared meeting and respond by email or aloud. It does NOT collect, match, or summarize replies, and does NOT change claudex:think.

Canonical invocation: /claudex:email [filter]. Replies land in the connected Gmail account and are not monitored live.

Step 1 — Parse panel (true fail-fast)

Read ~/.claude/claudex/panel.json. If it is missing or does not parse, STOP and tell the host to create/fix it. Recipients are parsed from data.panel.members; the members array is nested under the top-level panel key. Minimal required shape:

{
  "panel": {
    "members": [
      { "name": "Name", "email": "[email protected]", "role": "student", "include": true }
    ]
  }
}

If panel.members is missing or is not an array, treat it as a panel schema error and STOP before drafting. This is the only hard stop before drafting — everything else still produces a draft you can fall back to.

Step 2 — Resolve recipients

Resolve recipients only from data.panel.members plus any validated ad-hoc email tokens.

  • No argument: every member with include: true.
  • Argument contains a token with @: strip surrounding angle brackets, commas, semicolons, and whitespace from each such token; lowercase the domain; then validate it against a conservative email regex such as ^[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,}$. If any @ token is not a valid email, STOP and list the rejected tokens. Valid ad-hoc emails are combined with any other (non-@) filter tokens.
  • Other tokens (case-insensitive):
    • professor/professorsrole: professor; student/studentsrole: student.
    • Name tokens (e.g. florescu bozdog) match against name. Multiple tokens are ORflorescu bozdog resolves to BOTH people, not one person matching both.
  • NEVER select a member with include: false unless explicitly named in the argument.
  • Each selected member from panel.members must have non-empty string name, email, and role fields plus a boolean include field. If any selected member fails this validation, STOP. If any selected member lacks a valid email, show which selected member is invalid.
  • Deduplicate the final recipient list by normalized lowercased email before preview, send, and log. Show the unique recipient count.
  • If zero recipients resolve, STOP and show what matched / was excluded.

Read the full file on GitHub · 138 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.

  1. 6d ago First seen · 138 lines · 109 tokens per session scan A 663991bc3650

Subscribe to this mod's changes

email is a skill published in the GitHub repository WillInvest/ClaudeX (4 stars, last pushed 3mo ago), licensed MIT. It adds 109 tokens to every session and 1,832 once invoked, about $0.0005 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.