Fast Note Sync Service is a server for synchronizing Obsidian notes and attachments between devices, with web management and interfaces for programs and AI clients. It is used to manage vaults and notes, expose REST operations, and let compatible AI clients read and modify synchronized personal content. The catalogue skill relates to operating or integrating with this service.
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 haierkeys/fast-note-sync-service --skill fns-mcpgit clone --depth 1 https://github.com/haierkeys/fast-note-sync-serviceWrote 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/haierkeys/fast-note-sync-service/fns-mcp)<a href="https://agentmods.dev/skills/haierkeys/fast-note-sync-service/fns-mcp"><img src="https://agentmods.dev/badge/skills/haierkeys/fast-note-sync-service/fns-mcp/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/haierkeys/fast-note-sync-service/fns-mcp"><img src="https://agentmods.dev/badge/skills/haierkeys/fast-note-sync-service/fns-mcp.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 | $0.00034 | $0.01277 |
| Opus 5 | $0.00017 | $0.00639 |
| Sonnet 5 | $0.00007 | $0.00255 |
| Haiku 4.5 | $0.00003 | $0.00128 |
Grade A, and why
fns-mcp 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 9d 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.
Fast Note Sync (FNS) MCP Skill (Bilingual/双语版)
This skill allows agents to interact with the Fast Note Sync Service using the Model Context Protocol (MCP). 本技能允许 Agent 通过 Model Context Protocol (MCP) 与 Fast Note Sync Service 交互。
Core Capabilities / 核心能力
- Note Management / 笔记管理: Listing, searching, CRUD, moving, renaming, restoring, and clearing recycle bin. (列表、检索、增删改查、移动、重命名、恢复、清理回收站)
- Note Enhancement / 笔记增强: Frontmatter patching, appending/prepending, find & replace, and backlinks/outlinks. (Frontmatter 修补、追加/预置、查找替换、双链/外链)
- File Management / 文件管理: Attachment listing, metadata retrieval, reading content (Base64), renaming, and deletion. (附件列表、元数据、读取内容、重命名、删除)
- Vault Management / 库管理: Vault listing, creating/updating, and deletion. (库列表、创建/更新、删除)
Configuration Guide / 配置指南
Before using this skill, the agent needs to connect to the MCP SSE interface. 在使用此技能前，Agent 需要连接到 MCP SSE 接口。
Interface Details / 接口信息
- SSE Endpoint:
http://<YOUR_DOMAIN>:9000/api/mcp/sse - Message Endpoint:
http://<YOUR_DOMAIN>:9000/api/mcp/message - Authentication: Requires
Authorization: Bearer <YOUR_AUTH_TOKEN>in headers. - Client Identity (Optional):
X-Client:<ClientType>(e.g.,CherryStudio,OpenClaw)X-Client-Name:<ClientName>(e.g.,MyAgent)X-Client-Version:<Version>
- Default Vault (Optional):
X-Default-Vault-Name: <VAULT_NAME>
Platform Specific Config / 平台配置示例
Available Tools / 可用工具说明
1. Note Tools / 笔记工具
| Tool Name / 工具 | Description / 描述 | Arguments / 参数 |
|---|---|---|
note_list |
List notes in a vault / 列出笔记 | vault, keyword |
note_get |
Get note content / 获取笔记内容 | vault, path |
note_create_or_update |
Create/Update note / 创建或更新笔记 | vault, path, content |
note_delete |
Delete note / 删除笔记 | vault, path |
note_rename |
Rename note / 重命名笔记 | vault, oldPath, newPath |
note_restore |
Restore note / 恢复笔记 | vault, path |
note_append |
Append content / 追加内容 | vault, path, content |
note_prepend |
Prepend content / 预置内容 | vault, path, content |
note_replace |
Find & Replace / 查找替换 | vault, path, find, replace, regex, all |
note_patch_frontmatter |
Patch Frontmatter / 修补前置参数 | vault, path, updates (JSON), remove (JSON) |
note_get_backlinks |
Get backlinks / 获取反链 | vault, path |
note_get_outlinks |
Get outlinks / 获取出链 | vault, path |
What ships with it
3 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.
- 9d ago First seen · 87 lines · 34 tokens per session scan A 454841e9c571
fns-mcp is a skill published in the GitHub repository haierkeys/fast-note-sync-service (2,283 stars, last pushed 25d ago), licensed Apache-2.0. It adds 34 tokens to every session and 1,277 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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