skills-update

skills-update is a skill for Claude Code, Codex from louisbrulenaudet/monorepo-template. It costs 72 tokens per session (950 once invoked), scanned A, original, Apache-2.0.

A skill for refreshing externally installed coding-agent skills listed in a project lock file. It updates selected skills while avoiding unrelated additions.

In plain words
What is it for?
Use it to update named locked skills, refresh upstream skill content, or run the corresponding project update process.
Why use it?
It prevents accidental updates to every available skill and keeps installed copies aligned with the versions the project records.

Skill for Claude CodeCodex

Written for Claude Code and Codex: disable-model-invocation in frontmatter, but also agents/openai.yaml present. Also seen: installed under .agents/ (shared by several agents).

Good fit Use it to update named locked skills, refresh upstream skill content, or run the corresponding project update process.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/louisbrulenaudet/monorepo-template/skills-update
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 louisbrulenaudet/monorepo-template --skill skills-update
Clone the repo
git clone --depth 1 https://github.com/louisbrulenaudet/monorepo-template

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 skills-update

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/louisbrulenaudet/monorepo-template/skills-update"><img src="https://agentmods.dev/badge/skills/louisbrulenaudet/monorepo-template/skills-update.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 72 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 950 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: 11 findings, up to high

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 →

  • high Rogue Agent · line 23
    Skill modifies its own code, configuration, or behavior at runtime. Self-modification enables an agent to escalate privileges, disable safety constraints, or install persistent backdoors.
    Fix: Prevent the skill from modifying its own code, SKILL.md, or configuration files. Treat skill files as read-only at runtime.
  • medium MCP Rug Pull · line 3
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 16
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 19
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 21
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 36
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 43
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 49
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 86
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 97
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 103
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
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 $0.00072 $0.00950
Opus 5 $0.00036 $0.00475
Sonnet 5 $0.00014 $0.00190
Haiku 4.5 $0.00007 $0.00095

Measured 12d ago against content hash e78b55ff83e0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

skills-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 12d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/read-legacy-skills.sh, scripts/update-locked-skills.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

.agents/skills/skills-update/SKILL.md · 124 lines

How it starts

The opening of the file, as written. The whole thing — 124 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skills Update

Refresh externally installed skills listed in skills-lock.json. Installed copies live under .agents/skills/.

Invocation is explicit only - do not update skills unless the user requests it.

Hard rules

  • Never run npx skills update without at least one skill name. A bare update installs or refreshes every discoverable skill and pollutes .agents/skills/ with unwanted content.
  • Never run npx skills add <source> without --skill <name>. A bare add installs every skill from the source repo and pollutes .agents/skills/.
  • Never run npx skills add unless the user explicitly requests a new skill or a legacy refresh (see below).
  • Only update skill names present as keys in skills-lock.json.
  • One skill name per npx invocation. Do not batch multiple skills in a single command unless the user explicitly names them.
  • Run all commands from the repository root.
  • Network access is required.

Workflow

  1. Read skills-lock.json and collect Object.keys(skills) - this is the authoritative list. Do not rely on a stale embedded list.

  2. For each name, run a separate command:

    npx skills update <skill-name>
    
  3. If a skill reports “cannot be updated automatically (installed before skillPath tracking)”, re-add it from its lockfile source with --skill:

    npx skills add <source> --skill <skill-name> -y
    

    Example:

    npx skills add github/awesome-copilot --skill git-commit -y
    

Or run the helper script (skips well-known sources such as stripe-best-practices):

bash .agents/skills/skills-update/scripts/read-legacy-skills.sh
  1. Stop and report on the first failure; do not continue blindly.
  2. Review git status and git diff:
    • Expect changes under .agents/skills/<locked-skill>/ and skills-lock.json (computedHash updates).
    • Flag any new skill directories not in the lockfile.
    • Confirm project-local skills (e.g. monorepo-setup, zod, dependency-audit, lint-autofix) are unchanged.
  3. Run cspell on touched paths:

Read the full file on GitHub · 124 lines

Files

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.

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. 12d ago First seen · 124 lines · 72 tokens per session scan A e78b55ff83e0

Subscribe to this mod's changes

skills-update is a skill published in the GitHub repository louisbrulenaudet/monorepo-template (19 stars, last pushed 11d ago), licensed Apache-2.0. It adds 72 tokens to every session and 950 once invoked, about $0.0004 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.