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 andisab/swe-marketplace --skill joplin-researchgit clone --depth 1 https://github.com/andisab/swe-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/andisab/swe-marketplace/joplin-research)<a href="https://agentmods.dev/skills/andisab/swe-marketplace/joplin-research"><img src="https://agentmods.dev/badge/skills/andisab/swe-marketplace/joplin-research/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/andisab/swe-marketplace/joplin-research"><img src="https://agentmods.dev/badge/skills/andisab/swe-marketplace/joplin-research.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 | $0.00052 | $0.04355 |
| Opus 5.5 | $0.00021 | $0.01742 |
| Sonnet 5.5 | $0.00010 | $0.00871 |
| Haiku 4.5 | $0.00005 | $0.00436 |
Grade A, and why
joplin-research 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.
How it starts
The opening of the file, as written. The whole thing — 549 lines — stays where its author put it; the contents beside it link to each section on GitHub.
When to Use: Automatically activate this skill whenever:
- User mentions "Joplin" in their request
- User requests markdown artifacts for note-taking
- User requests technical rundowns, summaries, or research documents
- User explicitly requests content following their markdown preferences
Response: When returning formatted artifacts:
- Refer to the generated content
- Do not describe formatting rules and other details followed, unless more substantial changes to content have been made
Core Formatting Principles
Spacing and Line Break Rules
- Heading Spacing:
- Two carriage returns (blank lines) BEFORE h2 headings
- One carriage return (blank line) BEFORE all other headings (h3, h4, h5, h6)
- CRITICAL: NO extra blank lines after headings
- Horizontal Rules:
- Remove any extra horizontal rules ("---") under headings other than H3. These are handled by CSS.
- NEVER use "---" after h1 or h2 headings (they already have border-bottom in CSS)
- NO other heading levels (h4, h5, h6) should have horizontal rules.
- Content Spacing:
- NO extra blank lines within sections unless separating fundamentally different concepts
- CLI commands follow the same compact formatting as other content
- General Rule: If in doubt, use less spacing rather than more
Heading Hierarchy & Typography
- h1 Headings - Bitter Serif, 2rem, border-bottom
- Rarely used. Reserve for document title only in special cases
- Already has border-bottom in CSS, so NEVER add "---" after it
- Usually preceded by
>[toc]tag at start of document if the document is more that 5 pages long
- h2 Headings - Bitter Serif, 1.8rem, border-bottom
- Main document sections
- Already has border-bottom in CSS, so NEVER add "---" after it
- h3 Headings - Bitter Serif, 1.5rem
- Primary section dividers
- ONLY heading level that gets "---" separator underneath
- This is where major content sections begin
- h4 Headings - Bitter Serif, 1.25rem
- Sub-sections within h3 sections
- Regular markdown, no special formatting
- Use for subsections within a larger section
- h5 Headings - Bitter Serif, 1.25em
- Detail-level sections
- Regular markdown, no special formatting
- Use for even smaller section headings
- h6 Headings - Sans-serif, 0.9rem, weight 600
- Rarely used
- For emphasis or 1-paragraph comments
- Often used for sub-labels within lists (e.g.,
###### [GitHub: Repository](url))
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.
- today First seen · 549 lines · 52 tokens per session scan A cef989a64011
joplin-research is a skill published in the GitHub repository andisab/swe-marketplace (21 stars, last pushed today), licensed MIT. It adds 52 tokens to every session and 4,355 once invoked, about $0.0002 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 2026-10-17.
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