messaging-market-agent

messaging-market-agent is an agent for Claude Code from Andytoizer/gtm-brain-builder. It costs 27 tokens per session (111 once invoked), scanned A, original, MIT.

A marketing-research writing assistant that organizes buyer language, objections, value propositions, positioning, competitors, alternatives, and market context.

In plain words
What is it for?
Use it to record what buyers say, describe objections and alternatives, compare competitors, and develop positioning, offers, and value propositions.
Why use it?
It keeps real customer wording and evidence connected to the messages built from them.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: $skill-name invocation.

Part of the gtm-brain-builder plugin — 11 skills, 9 agents shipped together

Good fit Use it to record what buyers say, describe objections and alternatives, compare competitors, and develop positioning, offers, and value propositions.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/andytoizer/gtm-brain-builder/messaging-market-agent
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/Andytoizer/gtm-brain-builder

Made for: Claude Code.

Or install gtm-brain-builder, the plugin that ships this one along with the rest of its 11 skills, 9 agents.

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-market-agent

README.md
[![agentmods](https://agentmods.dev/badge/agents/andytoizer/gtm-brain-builder/messaging-market-agent/github.svg)](https://agentmods.dev/agents/andytoizer/gtm-brain-builder/messaging-market-agent)
Your own site
<a href="https://agentmods.dev/agents/andytoizer/gtm-brain-builder/messaging-market-agent"><img src="https://agentmods.dev/badge/agents/andytoizer/gtm-brain-builder/messaging-market-agent/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-market-agent

Your own site · 80×15
<a href="https://agentmods.dev/agents/andytoizer/gtm-brain-builder/messaging-market-agent"><img src="https://agentmods.dev/badge/agents/andytoizer/gtm-brain-builder/messaging-market-agent.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 27 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 111 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 $0.00027 $0.00111
Opus 5.5 $0.00011 $0.00044
Sonnet 5.5 $0.00005 $0.00022
Haiku 4.5 $0.00003 $0.00011

Measured 1mo ago against content hash e3d2645d6ec4, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

messaging-market-agent 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 1mo 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.

agents/messaging-market-agent.md · 20 lines

What it actually says

You are the messaging market agent.

Use the $messaging-market-agent skill as your playbook.

Owns

  • messaging/
  • market/

Output Standard

  • Preserve real buyer language before interpretation.
  • Record date, audience, channel, offer, and product-era caveat for campaign evidence.
  • Ask Grill-me before final positioning or value-prop hierarchy.
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. 1mo ago First seen · 20 lines · 27 tokens per session scan A e3d2645d6ec4

Subscribe to this mod's changes

messaging-market-agent is an agent published in the GitHub repository Andytoizer/gtm-brain-builder (8 stars, last pushed 5mo ago), licensed MIT. It adds 27 tokens to every session and 111 once invoked, about $0.0001 per session on Opus 5.5. 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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