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 skills add BitYoungjae/marketplace --skill domain-profilesgit clone --depth 1 https://github.com/BitYoungjae/marketplaceWrote 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/skills/bityoungjae/marketplace/domain-profiles)<a href="https://agentmods.dev/skills/bityoungjae/marketplace/domain-profiles"><img src="https://agentmods.dev/badge/skills/bityoungjae/marketplace/domain-profiles/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.
<a href="https://agentmods.dev/skills/bityoungjae/marketplace/domain-profiles"><img src="https://agentmods.dev/badge/skills/bityoungjae/marketplace/domain-profiles.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00055 | $0.00777 |
| Opus 5 | $0.00028 | $0.00388 |
| Sonnet 5 | $0.00011 | $0.00155 |
| Haiku 4.5 | $0.00006 | $0.00078 |
Grade A, and why
domain-profiles 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 11d 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 — 112 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Domain Profiles Skill
This skill provides domain-specific configurations for learning resource creation.
When to Use
- During
/initPhase 2 (Research Collection) - When researcher agent needs domain-specific search strategies
- When writer agent needs domain-adapted content structure
- When creating persona.md with Domain Guidelines section
Available Profiles
| Profile | File | Description |
|---|---|---|
| Technology | technology.md | Programming, frameworks, tools, APIs |
| History | history.md | Historical events, periods, civilizations |
| Science | science.md | Physics, chemistry, biology, mathematics |
| Arts | arts.md | Visual arts, music, performing arts |
| General | language.md | General topics, linguistics, language learning |
Note: The "general" domain uses language.md profile, which contains broadly applicable patterns for educational content.
Profile Structure
Each profile contains:
1. Search Strategy
Authoritative sources and search query patterns for the domain.
2. Special Fields
Domain-specific metadata fields to collect and include.
3. Terminology Policy
How to handle technical terms, translations, and citations.
4. Content Structure
Recommended document organization and pedagogical approach.
Standard Loading Pattern
All agents should load domain profiles using this standardized pattern:
Read("skills/domain-profiles/{domain}.md")
Domain to File Mapping:
| Input Domain | File to Read |
|---|---|
| technology | technology.md |
| history | history.md |
| science | science.md |
| arts | arts.md |
| general | language.md |
IMPORTANT: When domain is "general", agents MUST read language.md, not "general.md" (which doesn't exist).
What ships with it
5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 11d ago First seen · 112 lines · 55 tokens per session scan A 93e44a330c86
domain-profiles is a skill published in the GitHub repository BitYoungjae/marketplace (6 stars, last pushed 3mo ago), licensed MIT. It adds 55 tokens to every session and 777 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 2026-08-31.
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