agent-mail

agent-mail is a skill for Claude Code, Codex from Dicklesworthstone/mcp_agent_mail. It costs 59 tokens per session (3,253 once invoked), scanned C, original, no licence file.

A mail-like coordination layer for multiple coding agents, backed by Git and SQLite. It provides agent identities, messages, file reservations, policies, and recovery tools.

In plain words
What is it for?
Use it to send threaded messages, reserve files, enforce pre-commit checks, involve a human overseer, export records, and recover coordination data.
Why use it?
It helps agents share status and avoid conflicting changes when working on the same codebase.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it to send threaded messages, reserve files, enforce pre-commit checks, involve a human overseer, export records, and recover coordination data.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/dicklesworthstone/mcp_agent_mail/mcp_agent_mail
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 Dicklesworthstone/mcp_agent_mail --skill mcp_agent_mail
Clone the repo
git clone --depth 1 https://github.com/Dicklesworthstone/mcp_agent_mail

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 agent-mail

README.md
[![agentmods](https://agentmods.dev/badge/skills/dicklesworthstone/mcp_agent_mail/mcp_agent_mail/github.svg)](https://agentmods.dev/skills/dicklesworthstone/mcp_agent_mail/mcp_agent_mail)
Your own site
<a href="https://agentmods.dev/skills/dicklesworthstone/mcp_agent_mail/mcp_agent_mail"><img src="https://agentmods.dev/badge/skills/dicklesworthstone/mcp_agent_mail/mcp_agent_mail/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 agent-mail

Your own site · 80×15
<a href="https://agentmods.dev/skills/dicklesworthstone/mcp_agent_mail/mcp_agent_mail"><img src="https://agentmods.dev/badge/skills/dicklesworthstone/mcp_agent_mail/mcp_agent_mail.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 59 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,253 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 2 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00059 $0.03253
Opus 5 $0.00030 $0.01626
Sonnet 5 $0.00012 $0.00651
Haiku 4.5 $0.00006 $0.00325

Measured 10d ago against content hash b77176454d00, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade C, and why

agent-mail scanned grade C with 2 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 10d 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.

Downloads and executes remote codehighSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

curl -fsSL "https://raw.githubusercontent.com/Dicklesworthstone/mcp_agent_mail/main/scripts/install.sh?$(date +%s)" | bash -s -- --yes

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -fsSL "https://raw.githubusercontent.com/Dicklesworthstone/mcp_agent_mail/main/scripts/install.sh?$(date +%s)" | bash -s -- --yes
SKILL.md · 422 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 10d ago First seen · 422 lines · 59 tokens per session scan C b77176454d00

Subscribe to this mod's changes

agent-mail is a skill published in the GitHub repository Dicklesworthstone/mcp_agent_mail (2,134 stars, last pushed 4d ago), with no licence file. It adds 59 tokens to every session and 3,253 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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