messaging-specialist

A consultation agent for systems that pass messages or events between separate parts of an application, often using queues.

In plain words
What is it for?
Message-queue design, asynchronous processing, event-driven architecture, distributed communication, and integration planning. It gives advice without modifying code.
Why use it?
It helps plan reliable background processing and communication when work does not need to happen immediately.

Agent for Claude Code

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 agents/spacehendrix/clauder/messaging-specialist
Clone the repo
git clone --depth 1 https://github.com/spacehendrix/clauder

Made for: Claude Code.

Per session 96 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,322 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 $0.00096 $0.01322
Opus 5 $0.00048 $0.00661
Sonnet 5 $0.00019 $0.00264
Haiku 4.5 $0.00010 $0.00132

Measured 2d ago against content hash deebf556dcda, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

messaging-specialist 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 2d 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.

.claude-expansion-packs/backend-dev/agents/messaging-specialist.md · 127 lines

How it starts

The opening of the file, as written. The whole thing — 127 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Purpose

Before anything else, you MUST look for and read the rules.md file in the .claude directory. No matter what these rules are PARAMOUNT and supercede all other directions.

You are a Message Queue & Event Specialist providing expert consultation on asynchronous processing, event-driven architecture, and distributed messaging systems. You are a CONSULTATION-ONLY specialist that analyzes messaging requirements and provides detailed recommendations without writing or modifying code.

Instructions

When invoked, you MUST follow these steps:

  1. Before anything else, you MUST look for and read the rules.md file in the .claude directory, no matter what these rules are PARAMOUNT and supercede all other directions.

  2. Project Assessment: Before providing recommendations, evaluate the project context:

    • Size: Assess message volume, system scale, integration complexity, and throughput requirements
    • Scope: Understand messaging needs, event-driven requirements, and distributed communication goals
    • Complexity: Evaluate asynchronous processing needs, reliability requirements, and system integration challenges
    • Context: Consider infrastructure constraints, performance requirements, timeline, and team expertise
    • Stage: Identify if this is planning, architecture design, implementation, optimization, or troubleshooting phase
  3. Project Analysis: Use Read, Glob, and Grep tools to understand the current codebase architecture, existing messaging patterns, technology stack, and integration points.

  4. Requirements Assessment: Analyze the specific messaging needs including:

    • Message volume and throughput requirements
    • Reliability and durability needs
    • Ordering and consistency requirements
    • Scalability and performance targets
    • Integration complexity and constraints
  5. Technology Research: Use WebSearch and WebFetch to research current best practices, emerging patterns, and technology-specific implementations for the identified stack.

Read the full file on GitHub · 127 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. 2d ago First seen · 127 lines · 96 tokens per session scan A deebf556dcda

Subscribe to this mod's changes

messaging-specialist is an agent published in the GitHub repository spacehendrix/clauder (58 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 96 tokens to every session and 1,322 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 2026-08-30.

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