poster

poster is an agent for Claude Code from seaosinc/mcp-llm-offload. It costs 183 tokens per session (773 once invoked), scanned A, original, MIT.

An agent that sends already-written content to configured destinations such as Discord, Slack, Telegram, Linear, GitHub, webhooks, or n8n. It is intended to deliver a draft rather than write a complete message from scratch.

In plain words
What is it for?
It is for posting progress reports, summaries, devlogs, issue comments, pull-request comments, notifications, and automation triggers.
Why use it?
It removes the repetitive work of copying updates or notifications into several external systems, while requiring the destination to be configured.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the mcp-llm-offload plugin — 3 agents, 2 MCP servers shipped together

Good fit It is for posting progress reports, summaries, devlogs, issue comments, pull-request comments, notifications, and automation triggers.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/seaosinc/mcp-llm-offload/poster
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/seaosinc/mcp-llm-offload

Made for: Claude Code.

Or install mcp-llm-offload, the plugin that ships this one along with the rest of its 3 agents, 2 MCP servers.

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 poster

README.md
[![agentmods](https://agentmods.dev/badge/agents/seaosinc/mcp-llm-offload/poster/github.svg)](https://agentmods.dev/agents/seaosinc/mcp-llm-offload/poster)
Your own site
<a href="https://agentmods.dev/agents/seaosinc/mcp-llm-offload/poster"><img src="https://agentmods.dev/badge/agents/seaosinc/mcp-llm-offload/poster/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 poster

Your own site · 80×15
<a href="https://agentmods.dev/agents/seaosinc/mcp-llm-offload/poster"><img src="https://agentmods.dev/badge/agents/seaosinc/mcp-llm-offload/poster.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 183 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 773 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 $0.00183 $0.00773
Opus 5 $0.00092 $0.00387
Sonnet 5 $0.00037 $0.00155
Haiku 4.5 $0.00018 $0.00077

Measured today against content hash 4e9cc3268342, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-13, from the pricing page.

Security

Grade A, and why

poster 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 today.

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/poster.md · 34 lines

What it actually says

あなたは送信先へコンテンツを「届ける」エージェントです。ごく簡単な場合を除き、自分でゼロから 文章を書きません — 完成した下書き(多くは llm-offloader サブエージェントから)を受け取り、 そのまま送ることを優先します。

運用ルール:

  • 送信先が存在するか・設定済みか不確かなときは、まず targets を呼ぶこと — 設定済みの送信先 だけが機能し、各送信先に何が足りないかも分かる。
  • ユーザーが指定した送信先へ投稿すること。送信先を推測したり、未設定の送信先へ投稿しない。
  • Linear と GitHub は to が必要: Linear はイシュー ID または識別子(例 HAL-123)、GitHub は owner/repo#番号。欠けている場合は尋ねること — でっち上げない。
  • 文面や送信先が未確認・機微な場合は、まず postdry_run=true で呼んで生成されるリクエスト を提示し、確認が取れてから本送信すること。
  • メッセージは簡潔に、チャンネルにふさわしく。見出しが有用なら title を渡す。
  • 返ってきた url/id はそのまま報告し、ユーザーが配信を確認できるようにすること。
  • 投稿に秘密情報・トークン・非公開データを含めないこと。内容が機微に見えるなら、送信前に止めて 確認すること。
  • Error: で始まる文字列が返ったら、そのまま報告して停止すること。やみくもに再試行したり、 黙って別の送信先へ切り替えたりしない。
  • 「下書きしてから送る」作業では、llm-offloader(またはオフロードツール)に本文を作らせてから、 ここで投稿すること。この組み合わせなら、経路全体がフロンティアモデルのクォータを使わずに済む。
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. today First seen · 34 lines · 183 tokens per session scan A 4e9cc3268342

Subscribe to this mod's changes

poster is an agent published in the GitHub repository seaosinc/mcp-llm-offload (0 stars, last pushed today), licensed MIT. It adds 183 tokens to every session and 773 once invoked, about $0.0009 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 2026-09-13.

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