blog-post

blog-post is a skill for Claude Code, Codex from langchain-ai/deepagents. It costs 58 tokens per session (1,090 once invoked), scanned A, original, MIT.

A writing assistant for producing long-form articles, tutorials, how-to guides, and other detailed online content. It also creates an outline, prepares the content for search engines, and generates a cover image.

In plain words
What is it for?
Use it to create blog posts, technical write-ups, tutorials, thought-leadership pieces, and SEO-focused articles, with the text and cover image saved as files.
Why use it?
It gives a structured process for creating substantial articles instead of starting from a blank page. Required research helps ground the writing before it is produced.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

About the project

Deep Agents is an extensible agent harness that provides an out-of-the-box agent for long, multi-step tasks, with features such as planning, sub-agents, filesystem access, context management, memory, and human approval of tool calls. It is used by developers building agents with different language models, and its catalogue entries extend the harness with reusable skills, MCP servers, and instructions.

langchain-ai/deepagents · 28,997 stars · on GitHub · docs.langchain.com

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 skills/langchain-ai/deepagents/blog-post
Any agent
npx skills add langchain-ai/deepagents --skill blog-post
Clone the repo
git clone --depth 1 https://github.com/langchain-ai/deepagents

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 blog-post

README.md
[![agentmods](https://agentmods.dev/badge/skills/langchain-ai/deepagents/blog-post.svg)](https://agentmods.dev/skills/langchain-ai/deepagents/blog-post)
Your own site
<a href="https://agentmods.dev/skills/langchain-ai/deepagents/blog-post"><img src="https://agentmods.dev/badge/skills/langchain-ai/deepagents/blog-post.svg" alt="Measured on agentmods" height="20"></a>
Per session 58 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,090 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 5.1 $0.00058 $0.01090
Opus 5 $0.00029 $0.00545
Sonnet 5 $0.00012 $0.00218
Haiku 4.5 $0.00006 $0.00109

Measured 6d ago against content hash 36f7f23aa3a9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

blog-post 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 6d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

  • blog-post — 88% identical, 17 lines differ
examples/content-builder-agent/skills/blog-post/SKILL.md · 135 lines

How it starts

The opening of the file, as written. The whole thing — 135 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Blog Post Writing Skill

Research First (Required)

Before writing any blog post, you MUST delegate research:

  1. Use the task tool with subagent_type: "researcher"
  2. In the description, specify BOTH the topic AND where to save:
task(
    subagent_type="researcher",
    description="Research [TOPIC]. Save findings to research/[slug].md"
)

Example:

task(
    subagent_type="researcher",
    description="Research the current state of AI agents in 2025. Save findings to research/ai-agents-2025.md"
)
  1. After research completes, read the findings file before writing

Output Structure (Required)

Every blog post MUST have both a post AND a cover image:

blogs/
└── <slug>/
    ├── post.md        # The blog post content
    └── hero.png       # REQUIRED: Generated cover image

Example: A post about "AI Agents in 2025" → blogs/ai-agents-2025/

You MUST complete both steps:

  1. Write the post to blogs/<slug>/post.md
  2. Generate a cover image using generate_image and save to blogs/<slug>/hero.png

A blog post is NOT complete without its cover image.

Blog Post Structure

Every blog post should follow this structure:

1. Hook (Opening)

  • Start with a compelling question, statistic, or statement
  • Make the reader want to continue
  • Keep it to 2-3 sentences

2. Context (The Problem)

  • Explain why this topic matters
  • Describe the problem or opportunity
  • Connect to the reader's experience

3. Main Content (The Solution)

  • Break into 3-5 main sections with H2 headers
  • Each section covers one key point
  • Include code examples, diagrams, or screenshots where helpful
  • Use bullet points for lists

4. Practical Application

  • Show how to apply the concepts
  • Include step-by-step instructions if applicable
  • Provide code snippets or templates

5. Conclusion & CTA

  • Summarize key takeaways (3 bullets max)
  • End with a clear call-to-action
  • Link to related resources

Cover Image Generation

After writing the post, generate a cover image using the generate_cover tool:

Read the full file on GitHub · 135 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. 6d ago First seen · 135 lines · 58 tokens per session scan A 36f7f23aa3a9

Subscribe to this mod's changes

blog-post is a skill published in the GitHub repository langchain-ai/deepagents (28,997 stars, last pushed today), licensed MIT. It adds 58 tokens to every session and 1,090 once invoked, about $0.0003 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.