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 yangtaihong59/siyuan-plugins-mcp-sisyphus --skill siyuan-mcp-sisyphusgit clone --depth 1 https://github.com/yangtaihong59/siyuan-plugins-mcp-sisyphusWrote 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/yangtaihong59/siyuan-plugins-mcp-sisyphus/siyuan-mcp-sisyphus)<a href="https://agentmods.dev/skills/yangtaihong59/siyuan-plugins-mcp-sisyphus/siyuan-mcp-sisyphus"><img src="https://agentmods.dev/badge/skills/yangtaihong59/siyuan-plugins-mcp-sisyphus/siyuan-mcp-sisyphus/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/yangtaihong59/siyuan-plugins-mcp-sisyphus/siyuan-mcp-sisyphus"><img src="https://agentmods.dev/badge/skills/yangtaihong59/siyuan-plugins-mcp-sisyphus/siyuan-mcp-sisyphus.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00302 |
| Opus 5 | $0.00026 | $0.00151 |
| Sonnet 5 | $0.00010 | $0.00060 |
| Haiku 4.5 | $0.00005 | $0.00030 |
Grade A, and why
siyuan-mcp-sisyphus 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 12d 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.
What it actually says
Operate SiYuan with Sisyphus MCP
Select the narrowest workflow bundle:
- Read, browse, search, SQL, backlinks, or references:
siyuan-mcp-read-discover. - Create, edit, replace, or format rich SiYuan content:
siyuan-mcp-write-format. - Attribute views, assets, extraction, upload, or export:
siyuan-mcp-data-files. - Tags, flashcards, timelines, permissions, system actions, or safety:
siyuan-mcp-organize-safety.
Prefer fs for human-readable workspace paths. Use document and block for IDs, storage paths, metadata, and block-granular work. Use av for real databases.
Read /AGENTS.md through fs before workspace-aware tasks when it exists. Read before writing, paginate until complete, and verify mutations by stable ID or path. Obtain explicit approval before deletes, moves, bulk replacement, permission changes, local upload/export, rollback, or sensitive disclosure. For unfamiliar parameters, read siyuan://help/action/{tool}/{action} or call the tool with action="help".
What ships with it
1 file 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.
- 12d ago First seen · 18 lines · 52 tokens per session scan A e7dba8b9b7e5
siyuan-mcp-sisyphus is a skill published in the GitHub repository yangtaihong59/siyuan-plugins-mcp-sisyphus (104 stars, last pushed 2d ago), licensed MIT. It adds 52 tokens to every session and 302 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.
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