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 lyhcode/agent-skills --skill synology-cligit clone --depth 1 https://github.com/lyhcode/agent-skillsWrote 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/lyhcode/agent-skills/synology-cli)<a href="https://agentmods.dev/skills/lyhcode/agent-skills/synology-cli"><img src="https://agentmods.dev/badge/skills/lyhcode/agent-skills/synology-cli/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/lyhcode/agent-skills/synology-cli"><img src="https://agentmods.dev/badge/skills/lyhcode/agent-skills/synology-cli.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 | $0.00092 | $0.01885 |
| Opus 5.5 | $0.00037 | $0.00754 |
| Sonnet 5.5 | $0.00018 | $0.00377 |
| Haiku 4.5 | $0.00009 | $0.00188 |
Grade A, and why
synology-cli scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 189 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Synology NAS CLI Administration
Help users manage Synology DiskStation via SSH using the six CLI utilities located at /usr/syno/sbin/.
Reference: Synology CLI Administrator Guide
Prerequisites
- SSH access to the Synology NAS (enable via DSM > Control Panel > Terminal & SNMP)
- Root/super-user privileges (all utilities require super-user)
- Commands are at
/usr/syno/sbin/— use full path or add to$PATH
User Management — synouser
# Add user (username passwd full_name expired email app_privilege)
/usr/syno/sbin/synouser --add john "p@ssw0rd" "John Doe" 0 [email protected] 0
# Delete user
/usr/syno/sbin/synouser --del john
# Rename user
/usr/syno/sbin/synouser --rename oldname newname
# Modify user info
/usr/syno/sbin/synouser --modify john "newpass" "John D." 0 [email protected] 0
# Set password only
/usr/syno/sbin/synouser --setpw admin newpassword
Parameters:
username: 1–64 UTF-8 chars, not case sensitivepasswd: up to 127 chars, case sensitiveexpired: 0 = active, 1 = expiredapp_privilege: bitmask — FTP (0x01), File Station (0x02), Audio Station (0x04), Download Station (0x08), Surveillance Station (0x10). Sum for multiple (e.g., 31 = all)
Group Management — synogroup
# Add group with initial members
/usr/syno/sbin/synogroup --add developers user1 user2
# Delete group
/usr/syno/sbin/synogroup --del developers
# Rename group
/usr/syno/sbin/synogroup --rename oldgroup newgroup
# Set group members (replaces entire member list)
/usr/syno/sbin/synogroup --member developers user1 user2 user3
Restrictions: Group name 1–15 UTF-8 chars. System groups cannot be deleted or renamed.
Shared Folder Management — synoshare
# Add shared folder
# synoshare --add name desc path user_list_na user_list_ro user_list_rw browsable adv_privilege
/usr/syno/sbin/synoshare --add projects "Projects" /volume1/projects "" "" "" 1 0
# Delete shared folder (TRUE = delete data, FALSE = config only)
/usr/syno/sbin/synoshare --del TRUE projects
# Rename shared folder
/usr/syno/sbin/synoshare --rename oldname newname
# Set user permissions (NA|RO|RW) (+|-|=) user_list
/usr/syno/sbin/synoshare --setuser projects RW + user1,user2,@group1
/usr/syno/sbin/synoshare --setuser projects RO = user3
/usr/syno/sbin/synoshare --setuser projects NA - user4
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.
- 1mo ago First seen · 189 lines · 92 tokens per session scan A 236e67cd9680
synology-cli is a skill published in the GitHub repository lyhcode/agent-skills (2 stars, last pushed 6mo ago), licensed MIT. It adds 92 tokens to every session and 1,885 once invoked, about $0.0004 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 2026-08-31.
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