claude-mail-bridge-team_rules

claude-mail-bridge-team_rules is a skill for Claude Code, Codex from CodingJay-1/claude-mail-bridge. It costs 30 tokens per session (444 once invoked), scanned A, original, MIT.

A set of privacy rules for emailing teammates through a mail tool.

In plain words
What is it for?
Use it whenever an operation would email teammates, especially when the message includes files or other potentially sensitive information.
Why use it?
It prevents messages from being sent without the user's approval and requires the recipient, subject, summary, and attachments to be shown first.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it whenever an operation would email teammates, especially when the message includes files or other potentially sensitive information.

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Install with agentmods
npx agentmods add skills/codingjay-1/claude-mail-bridge/claude-mail-bridge-team_rules
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 CodingJay-1/claude-mail-bridge --skill claude-mail-bridge-team_rules
Clone the repo
git clone --depth 1 https://github.com/CodingJay-1/claude-mail-bridge

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.

agentmods badge for claude-mail-bridge-team_rules

README.md
[![agentmods](https://agentmods.dev/badge/skills/codingjay-1/claude-mail-bridge/claude-mail-bridge-team_rules/github.svg)](https://agentmods.dev/skills/codingjay-1/claude-mail-bridge/claude-mail-bridge-team_rules)
Your own site
<a href="https://agentmods.dev/skills/codingjay-1/claude-mail-bridge/claude-mail-bridge-team_rules"><img src="https://agentmods.dev/badge/skills/codingjay-1/claude-mail-bridge/claude-mail-bridge-team_rules/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.

agentmods 80×15 button for claude-mail-bridge-team_rules

Your own site · 80×15
<a href="https://agentmods.dev/skills/codingjay-1/claude-mail-bridge/claude-mail-bridge-team_rules"><img src="https://agentmods.dev/badge/skills/codingjay-1/claude-mail-bridge/claude-mail-bridge-team_rules.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 444 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00030 $0.00444
Opus 5 $0.00015 $0.00222
Sonnet 5 $0.00006 $0.00089
Haiku 4.5 $0.00003 $0.00044

Measured 9d ago against content hash c6911aa2cddd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

claude-mail-bridge-team_rules 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 9d 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.

src/claude_mail_bridge/assets/skills/claude-mail-bridge-team_rules/SKILL.md · 59 lines

What it actually says

Claude Mail Bridge Team Rules

Overview

This skill defines strict behavioral guidelines for operations involving emailing teammates. These operations involve privacy risks and require explicit user approval.

When to Use This Skill

Use when operations involve emailing teammates.

Core Rule: Explicit Approval Required

CRITICAL: Before calling mail_teammates, you MUST get explicit user approval.

Approval Process

  1. Show the draft: Explain to the user in natural language:
    • The recipient (email or alias)
    • The subject
    • Content summary
    • Attachments (if any): list the files being attached
  2. Get confirmation: Wait for user to explicitly approve (e.g., "yes", "send it", "go ahead", "好的", "发送")
  3. Call with approval flag: Set _user_check_and_approved=True when calling the tool

Example

AI: I need to ask Alice about the deployment status.
    Should I send her an email with:
    - Subject: "Deployment status inquiry"
    - Attachments: ["/var/log/deploy.log", "config.yml"]
    Here's what I plan to say: [summary of content]

User: Yes, send it

AI: [calls mail_teammates with _user_check_and_approved=True and attachments=[...]]

Attachment Rules

When including attachments in teammate emails:

  • Always mention attachments when showing the draft to user
  • Verify file paths exist before calling the tool (validation is automatic, but be aware)
  • Max 15MB per file
  • Allowed types: text/code, images/PDFs, archives, documents

Prohibited Behaviors

Absolutely prohibited:

  • Do NOT email teammates without getting explicit user approval first
  • Do NOT assume approval based on past interactions
  • Do NOT send sensitive information without explicit confirmation
  • Do NOT call mail_teammates without first invoking this skill
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. 9d ago First seen · 59 lines · 30 tokens per session scan A c6911aa2cddd

Subscribe to this mod's changes

claude-mail-bridge-team_rules is a skill published in the GitHub repository CodingJay-1/claude-mail-bridge (3 stars, last pushed 6mo ago), licensed MIT. It adds 30 tokens to every session and 444 once invoked, about $0.0002 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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