update-compat

update-compat is a skill for Claude Code, Codex from timholy/claude_config. It costs 65 tokens per session (584 once invoked), scanned A, original, no licence file.

A workflow for updating the allowed versions of a Julia package dependency after a breaking change. It verifies the starting state, updates compatibility settings, checks the dependency resolver's choice, and fixes resulting breakage.

In plain words
What is it for?
Use it when a dependency introduces breaking changes and the package must be updated to work with the new version.
Why use it?
It reduces the risk of an incomplete dependency upgrade that leaves incompatible code or incorrect version rules.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it when a dependency introduces breaking changes and the package must be updated to work with the new version.

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

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 update-compat

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/timholy/claude_config/update-compat"><img src="https://agentmods.dev/badge/skills/timholy/claude_config/update-compat.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 65 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 584 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.
Origin unknown 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 $0.00065 $0.00584
Opus 5.5 $0.00026 $0.00234
Sonnet 5.5 $0.00013 $0.00117
Haiku 4.5 $0.00006 $0.00058

Measured 1mo ago against content hash 487a01fd83b5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

update-compat 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.

skills/update-compat/SKILL.md · 46 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 1mo ago Changed · +8 lines · +65 tokens per session 487a01fd83b5
  2. 1mo ago First seen · 38 lines · 0 tokens per session scan A 7e4a843a2afc

Subscribe to this mod's changes

update-compat is a skill published in the GitHub repository timholy/claude_config (75 stars, last pushed yesterday), with no licence file. It adds 65 tokens to every session and 584 once invoked, about $0.0003 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 2026-09-20.

Related

update-compat compared with skills from other repositories

update-compat next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
update-compattimholy/claude_configSkill75yesterdaynoneA65Claude Code, Codex
erlang-otp-behaviorsbenchflow-ai/skillsbenchSkill1.9k3d agoApache-2.0A52Claude Code, Codex
omh-rustrlaope/oh-my-hermesSkill5.2kyesterdayMITA74Claude Code, Codex
axiom-concurrencyCharlesWiltgen/AxiomSkill1.3kyesterdayMITA49Claude Code
tddcodewithmukesh/dotnet-claude-kitSkill8052d agoMITA81Claude Code
splitting-oversized-modulesPostHog/posthogSkill41kyesterdaynoneA197Claude Code, Codex
precisemicroprediction/preciseSkill3385d agoMITA76Claude Code, Codex