auto-update

auto-update is a skill for Claude Code, Codex from Jerry0022/dotclaude. It costs 70 tokens per session (1,335 once invoked), scanned A, original, MIT.

A manually triggered updater for a development-operations plugin. It pulls the latest version from GitHub, rebuilds its local cache, updates the plugin registry, and reports the result.

In plain words
What is it for?
Checking the installed version and channel, running an explicit plugin update, and producing a changelog and verification report.
Why use it?
It lets you update the plugin and see what changed without repeating the update and verification steps yourself.

Skill for Claude CodeCodex

Installs and runs on its own, but its text points at files inside its plugin — anything it tells you to read at a ${CLAUDE_PLUGIN_ROOT} path is only there once the plugin is installed. Installing the plugin gets both.

Part of the devops plugin — 23 skills, 12 agents, 5 hooks, 3 MCP servers shipped together

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/jerry0022/dotclaude/auto-update
Any agent
npx skills add Jerry0022/dotclaude --skill auto-update
Clone the repo
git clone --depth 1 https://github.com/Jerry0022/dotclaude

Made for: Claude Code, Codex.

Or install devops, the plugin that ships this one along with the rest of its 23 skills, 12 agents, 5 hooks, 3 MCP servers.

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

README.md
[![agentmods](https://agentmods.dev/badge/skills/jerry0022/dotclaude/auto-update.svg)](https://agentmods.dev/skills/jerry0022/dotclaude/auto-update)
Your own site
<a href="https://agentmods.dev/skills/jerry0022/dotclaude/auto-update"><img src="https://agentmods.dev/badge/skills/jerry0022/dotclaude/auto-update.svg" alt="Measured on agentmods" height="20"></a>
Per session 70 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,335 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 $0.00070 $0.01335
Opus 5 $0.00035 $0.00668
Sonnet 5 $0.00014 $0.00267
Haiku 4.5 $0.00007 $0.00134

Measured 4d ago against content hash efb5f4178742, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

auto-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 4d 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.

plugins/devops/skills/auto-update/SKILL.md · 151 lines

How it starts

The opening of the file, as written. The whole thing — 151 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Plugin Update

Manually trigger a plugin update with user-facing reporting.

Architecture

The actual update logic lives in ss.plugin.update.js (SessionStart hook). This skill is a thin wrapper that:

  1. Captures the current state (version, SHA)
  2. Runs the hook's JS code (pull + cache rebuild + registry update + verify)
  3. Reports what changed (changelog, verify status)

No duplicated logic. The hook is the single source of truth for the update mechanism. This skill only adds reporting.

Constants

PLUGIN_ROOT = ${CLAUDE_PLUGIN_ROOT} (from hook environment)
MARKETPLACE_DIR = ~/.claude/plugins/marketplaces/dotclaude
PLUGIN_SUBDIR = plugins/devops
HOOK_SCRIPT = ${PLUGIN_ROOT}/hooks/session-start/ss.plugin.update.js

Step 0 — Capture current state + channel

  1. Read current version from MARKETPLACE_DIR/PLUGIN_SUBDIR/.claude-plugin/plugin.json
  2. Read current git SHA: git -C MARKETPLACE_DIR rev-parse --short HEAD
  3. Read the channel pin from ~/.claude/plugins/.channels.json (key = marketplace name, missing/invalid → stable). One channel per MARKETPLACE — a single clone cannot serve two plugins on different channels.
  4. --channel <alpha|beta|stable> flag: re-pin by writing the sidecar ({"dotclaude": "beta"} merged into the existing JSON), then continue with the update so the new pin takes effect immediately.
  5. Compute drift: latest version visible to the pin vs. latest alpha (git -C MARKETPLACE_DIR ls-remote --tags origin, numeric compare on alpha/vX.Y.Z / beta/vX.Y.Z / stable/vX.Y.Z / bare vX.Y.Z).
  6. Report: Currently installed: v{version} ({sha}) — Channel: {channel}, latest visible: v{N} and, when alpha is ahead: (alpha has v{M} available).

Step 1 — Run update hook

Execute the hook script directly:

node HOOK_SCRIPT

The hook handles:

  • Channel-aware update on all marketplace clones (ring model): once a stable/* tag exists, the clone is pinned to the highest version visible to the channel pin via a detached tag checkout; before that, a bootstrap fallback keeps the legacy git pull --ff-only behavior
  • Cache rebuild (recursive copy incl. dotfiles)
  • installed_plugins.json registry update (incl. informational channel)
  • Silent verification (version alignment, cache completeness)

Read the full file on GitHub · 151 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. 4d ago First seen · 151 lines · 70 tokens per session scan A efb5f4178742

Subscribe to this mod's changes

auto-update is a skill published in the GitHub repository Jerry0022/dotclaude (5 stars, last pushed yesterday), licensed MIT. It adds 70 tokens to every session and 1,335 once invoked, about $0.0003 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 2026-08-31.

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