auto-update-skills

auto-update-skills is a skill for Claude Code from davidruzicka/mcp4openapi. It costs 0 tokens per session (1,154 once invoked), scanned A, original, MIT.

A set of Claude Code instructions for using lean-ctx, a context tool that reads and searches project files in compact forms. It describes several reading modes, including full files, API signatures, changed lines, and selected line ranges.

In plain words
What is it for?
Use it when inspecting files, searching code, viewing directory trees, running common project commands, or editing by search and replacement. It is designed for work where the amount of context sent to the AI needs to stay low.
Why use it?
It helps keep repeated file reads and command results small, which can reduce token use during a coding session. It also explains what to do when the normal editing tool cannot read a file first.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

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.

agentmods
npx agentmods add skills/davidruzicka/mcp4openapi/auto-update-skills
Any agent
npx skills add davidruzicka/mcp4openapi --skill auto-update-skills
Clone the repo
git clone --depth 1 https://github.com/davidruzicka/mcp4openapi

Made for: Claude Code.

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 auto-update-skills

README.md
[![agentmods](https://agentmods.dev/badge/skills/davidruzicka/mcp4openapi/auto-update-skills.svg)](https://agentmods.dev/skills/davidruzicka/mcp4openapi/auto-update-skills)
Your own site
<a href="https://agentmods.dev/skills/davidruzicka/mcp4openapi/auto-update-skills"><img src="https://agentmods.dev/badge/skills/davidruzicka/mcp4openapi/auto-update-skills.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,154 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00000 $0.01154
Opus 5 $0.00000 $0.00577
Sonnet 5 $0.00000 $0.00231
Haiku 4.5 $0.00000 $0.00115

Measured 5d ago against content hash 411cc2e4e731, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

auto-update-skills 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 5d 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.

.claude/skills/auto-update-skills/SKILL.md · 105 lines

How it starts

The opening of the file, as written. The whole thing — 105 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Goal

Capture lessons from corrections by proposing a new skill that preserves existing knowledge, avoids repeated mistakes, and aligns with preferred behavior.

Also ensure existing skills are respected by extending them when they should have applied but lacked a trigger or instruction.

When to Use

  • The user corrects a prior proposal, implementation, communication style or different chat pattern.
  • The correction reveals a reusable rule, tool, policy, or preferred pattern.

Preconditions

  • A correction or review has occurred in the current conversation.
  • The correction is relevant beyond the single instance.
  • A quick scan of existing skills shows no match, or a near match that can be fixed by updating the existing skill.

Definitions

  • Critical issue: A correction that affects UI/UX, API, DB scheme, architecture, safety, compliance, legal risk, financial impact, or major business outcomes. Propose a new skill immediately on first occurrence.
  • Trivial pattern: A small or low‑impact correction (formatting, minor naming, minor style preferences). Propose a new skill only after repetition.

Illustrative Categories (Non‑exhaustive)

Critical examples

  • Programming: API changes, database schema changes, UI modifications, programming patterns.
  • Engineering: Security or compliance rule (e.g., use approved validation utilities, avoid direct credential handling).
  • Product: Regulatory constraints or roadmap policy that changes what can be shipped.
  • Business: Pricing or contractual commitments that must be enforced.
  • HR: Hiring or privacy rules that must be followed.
  • Accounting: Tax or audit requirements that change reporting behavior.
  • Legal: Contract clauses or jurisdiction requirements that alter guidance.

Trivial examples

  • Engineering: Preferred code style or naming convention.
  • Product: Template wording or formatting of a status update.
  • Business: Slide layout preference.
  • HR: Preferred phrasing in internal comms.
  • Accounting: Report section ordering.
  • Legal: Minor citation format preference.

Read the full file on GitHub · 105 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. 5d ago First seen · 105 lines · 0 tokens per session scan A 411cc2e4e731

Subscribe to this mod's changes

auto-update-skills is a skill published in the GitHub repository davidruzicka/mcp4openapi (0 stars, last pushed 2d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,154 tokens. 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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