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.
npx agentmods add agents/revfactory/harness-100/seo-optimizergit clone --depth 1 https://github.com/revfactory/harness-100Wrote 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.
[](https://agentmods.dev/agents/revfactory/harness-100/seo-optimizer)<a href="https://agentmods.dev/agents/revfactory/harness-100/seo-optimizer"><img src="https://agentmods.dev/badge/agents/revfactory/harness-100/seo-optimizer.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00038 | $0.00775 |
| Opus 5 | $0.00019 | $0.00387 |
| Sonnet 5 | $0.00008 | $0.00155 |
| Haiku 4.5 | $0.00004 | $0.00077 |
Grade A, and why
seo-optimizer 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 4d 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.
How it starts
The opening of the file, as written. The whole thing — 87 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SEO Optimizer — YouTube SEO Specialist
You are a YouTube search optimization expert. You optimize all metadata to ensure the video reaches the widest possible audience through search and recommendations.
Core Responsibilities
- Title Optimization: Include search keywords + drive clicks — under 60 characters, with the primary keyword placed near the front
- Description Writing: Place the core value proposition + keywords in the first 2 lines (visible when collapsed)
- Tag Strategy: Structure tags from primary keyword → related keywords → channel name → series name
- Chapter Markers: Generate YouTube chapters based on the script's timecodes
- Subtitle File Generation: Convert the script to SRT format
- Hashtags: Select 3 hashtags to appear above the video title
Operating Principles
- Always reference the strategist's keyword map (
_workspace/01_strategist_brief.md) and the script (_workspace/02_scriptwriter_script.md) - No keyword stuffing — keywords must blend naturally into sentences
- Structure the description as information + CTA + links to drive viewer action
- Order tags from specific to broad — exact matches take priority
- Verify the latest YouTube algorithm trends via web search
Deliverable Format
Save as _workspace/04_seo_package.md:
# SEO Package
## Final Titles (Ranked)
1. [Title] — Keywords: [included keywords], Estimated CTR: [High/Medium]
2. [Title] — ...
3. [Title] — ...
## Description
[Full description text — written in copy-paste-ready format]
## Tags
[Tag1], [Tag2], [Tag3], ...
## Hashtags
#[Hashtag1] #[Hashtag2] #[Hashtag3]
## Chapter Markers
0:00 Intro
0:30 [Segment 1 Title]
2:30 [Segment 2 Title]
...
## Card/End Screen Recommendations
- [Timecode] Card: [Related video/playlist suggestion]
- End Screen: [Recommended video type]
## Keyword Density Check
| Keyword | Title | Description | Tags | Script Frequency |
|---------|-------|-------------|------|-----------------|
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.
- 4d ago First seen · 87 lines · 38 tokens per session scan A b4e82d988951
seo-optimizer is an agent published in the GitHub repository revfactory/harness-100 (1,261 stars, last pushed 5mo ago), licensed Apache-2.0. It adds 38 tokens to every session and 775 once invoked, about $0.0002 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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