sn-update

sn-update is a skill for Claude Code, Codex from OpenSenseNova/SenseNova-Skills. It costs 118 tokens per session (1,475 once invoked), scanned A, original, MIT.

Instructions for refreshing installed SenseNova skills from their upstream Git repository in OpenClaw or hermes-agent.

In plain words
What is it for?
It helps update all or selected `sn-*` skills, choose the correct installation target, and handle missing or already-current skills.
Why use it?
It keeps selected installed skills synchronized while avoiding accidental updates to the wrong agent installation.

Skill for Claude CodeCodex

Which agent this was written for is unclear — built for openclaw. Also seen: built for openclaw.

Good fit It helps update all or selected sn-* skills, choose the correct installation target, and handle missing or already-current skills.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/opensensenova/sensenova-skills/sn-update
About the project

SenseNova-Skills is a collection of modular skills that extend SenseNova models with office-assistant capabilities such as image generation, presentation creation, spreadsheet analysis, and research. The skills are designed for use in agent runtimes and can be combined into productivity workflows; the catalogue entries are individual skills and agents from this collection.

OpenSenseNova/SenseNova-Skills · 5,570 stars · on GitHub

Install

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.

Any agent
npx skills add OpenSenseNova/SenseNova-Skills --skill sn-update
Clone the repo
git clone --depth 1 https://github.com/OpenSenseNova/SenseNova-Skills

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for sn-update

README.md
[![agentmods](https://agentmods.dev/badge/skills/opensensenova/sensenova-skills/sn-update/github.svg)](https://agentmods.dev/skills/opensensenova/sensenova-skills/sn-update)
Your own site
<a href="https://agentmods.dev/skills/opensensenova/sensenova-skills/sn-update"><img src="https://agentmods.dev/badge/skills/opensensenova/sensenova-skills/sn-update/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.

agentmods 80×15 button for sn-update

Your own site · 80×15
<a href="https://agentmods.dev/skills/opensensenova/sensenova-skills/sn-update"><img src="https://agentmods.dev/badge/skills/opensensenova/sensenova-skills/sn-update.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 118 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,475 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Rogue Agent · line 100
    Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.
    Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00118 $0.01475
Opus 5 $0.00059 $0.00737
Sonnet 5 $0.00024 $0.00295
Haiku 4.5 $0.00012 $0.00147

Measured 9d ago against content hash 311e678d1720, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

sn-update 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.

skills/sn-update/SKILL.md · 161 lines

How it starts

The opening of the file, as written. The whole thing — 161 lines — stays where its author put it; the contents beside it link to each section on GitHub.

sn-update

Refresh installed sn-* skills from upstream SenseNova-Skills.


Decide the scope

  • No list given → every sn-* skill upstream.
  • Specific skills named → only those. Don't expand.
  • A named skill missing upstream → surface as error and stop.
  • User said "force / 强制" → re-install even when up-to-date.

Decide the target agent

Check which directories exist:

~/.openclaw/skills/ ~/.hermes/skills/ Target
exists absent openclaw
absent exists hermes
exists exists ask the user — never silently dual-write
absent absent no install found, stop

Sync the upstream repo

Persistent cache at ~/.cache/sn-update/repo/. Default URL: https://github.com/OpenSenseNova/SenseNova-Skills.git. User may override with a fork URL.

  • First run: if you want to actually limit blob download, use partial clone with --filter=blob:none --no-checkout, then sparse-checkout only the selected skills/<name> paths before copying them. --filter=blob:none alone does not keep the cache small if the full worktree is checked out; that checkout will still download most or all needed blobs. It still preserves history metadata for SHA queries.
  • Subsequent runs: fetch + hard-reset to the upstream default branch, and re-apply sparse-checkout for only the requested skills/<name> paths before copying. If updating the whole sn-* bundle, expect most/all skill blobs to be downloaded.
  • URL changed: if cache's origin differs from the requested URL, delete and re-clone.

Compare versions per skill (A → B → C)

For each skill, pick the highest-precedence signal present on both sides (installed + upstream); equal → skip, differ → install.

Upstream "version" is the per-subtree commit SHA — using repo HEAD would mark unrelated skills as stale every time:

git -C <cache> log -1 --format=%H -- skills/<skill-name>

Read the full file on GitHub · 161 lines

Changes

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.

  1. 9d ago First seen · 161 lines · 118 tokens per session scan A 311e678d1720

Subscribe to this mod's changes

sn-update is a skill published in the GitHub repository OpenSenseNova/SenseNova-Skills (5,570 stars, last pushed yesterday), licensed MIT. It adds 118 tokens to every session and 1,475 once invoked, about $0.0006 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 2026-09-03.

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