SiYuan is an open-source, self-hosted knowledge workspace for organizing personal information with Markdown, linked content blocks, documents, and databases. It is designed for privacy-conscious people and supports collaboration between humans and AI agents. Its catalogue instruction helps agents work with SiYuan.
Borrowing it
Nothing to install: this file belongs to siyuan-note/siyuan. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/siyuan-note/siyuan/master/AGENTS.mdgit clone --depth 1 https://github.com/siyuan-note/siyuanWrote 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/instructions/siyuan-note/siyuan/agents-md)<a href="https://agentmods.dev/instructions/siyuan-note/siyuan/agents-md"><img src="https://agentmods.dev/badge/instructions/siyuan-note/siyuan/agents-md/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/instructions/siyuan-note/siyuan/agents-md"><img src="https://agentmods.dev/badge/instructions/siyuan-note/siyuan/agents-md.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 | $0.10916 | $0.10916 |
| Opus 5.5 | $0.04366 | $0.04366 |
| Sonnet 5.5 | $0.02183 | $0.02183 |
| Haiku 4.5 | $0.01092 | $0.01092 |
Grade A, and why
siyuan AGENTS.md 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 7d 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.
The source is not reproduced here
Licensed AGPL-3.0
The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
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.
- 7d ago Changed · +16 lines · +804 tokens per session f5e5e5b0d51d
- 17d ago Changed · +33 lines · +2,298 tokens per session fdce1b544007
- 23d ago Changed · +36 lines · +1,878 tokens per session aebd261fa1b7
- 1mo ago Changed · +5 lines · +160 tokens per session 6cf489cb8482
- 1mo ago Changed · +18 lines · +918 tokens per session 98a68f064a10
- 1mo ago Changed · +13 lines · +717 tokens per session 7fdea7d4cad4
- 2mo ago Changed · -9 lines · -527 tokens per session 3acaedbc9c96
- 2mo ago First seen · 200 lines · 4,668 tokens per session scan A 7b6355ce3dde
siyuan AGENTS.md is an instructions file published in the GitHub repository siyuan-note/siyuan (47,093 stars, last pushed yesterday), licensed AGPL-3.0. It adds 10,916 tokens to every session, about $0.0437 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 2026-08-30.
siyuan AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| siyuan AGENTS.mdsiyuan-note/siyuan | Instructions file | 47k | yesterday | AGPL-3.0 | A | 10,916 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 5,516 | GitHub Copilot |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | today | MIT | A | 4,680 | Codex, OpenCode |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |