messaging-spec

messaging-spec is a plugin for Claude Code from voro6yov/spec-driven-development. Its manifest loads nothing; the 2 skills, 11 agents it bundles cost 663 tokens per session together, scanned A, original, Apache-2.0.

A plugin for creating specifications for messaging systems and implementing them. Messaging systems let services exchange events or commands instead of calling each other directly.

In plain words
What is it for?
Use it when designing or building services that publish, consume, or otherwise process messages.
Why use it?
It provides a focused workflow for documenting message-based behavior and turning those specifications into implementation work.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest.

Good fit Use it when designing or building services that publish, consume, or otherwise process messages.

Compare 6 plugins from other repositories ↓
Install in Claude Code
/plugin marketplace add voro6yov/spec-driven-development
/plugin install messaging-spec
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.

Clone the repo
git clone --depth 1 https://github.com/voro6yov/spec-driven-development

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.

agentmods badge for messaging-spec

README.md
[![agentmods](https://agentmods.dev/badge/plugins/voro6yov/spec-driven-development/messaging-spec/github.svg)](https://agentmods.dev/plugins/voro6yov/spec-driven-development/messaging-spec)
Your own site
<a href="https://agentmods.dev/plugins/voro6yov/spec-driven-development/messaging-spec"><img src="https://agentmods.dev/badge/plugins/voro6yov/spec-driven-development/messaging-spec/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 messaging-spec

Your own site · 80×15
<a href="https://agentmods.dev/plugins/voro6yov/spec-driven-development/messaging-spec"><img src="https://agentmods.dev/badge/plugins/voro6yov/spec-driven-development/messaging-spec.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 2 skills, 11 agents cost 663 tokens a session between them.
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.
Security

Grade A, and why

messaging-spec 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 13d 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.

plugins/messaging-spec/.claude-plugin/plugin.json · 11 lines

What it actually says

{
  "name": "messaging-spec",
  "description": "Generate specs for messaging and implement them",
  "version": "0.52.0",
  "author": {
    "name": "Valentin Vorobyev",
    "email": "[email protected]",
    "url": "https://github.com/voro6yov"
  }
}
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. 13d ago Changed 4122e45eeaf1
  2. 1mo ago First seen · 11 lines scan A 21044b146aa9

Subscribe to this mod's changes

messaging-spec is a plugin published in the GitHub repository voro6yov/spec-driven-development (5 stars, last pushed 14d ago), licensed Apache-2.0. Its token cost is not measured: this kind of file is read by the harness, not the model. 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.