ergopti: Skill for Claude Code

.agents/skills/verify-change/SKILL.md

verify-change is a skill for Claude Code, Codex from adrienm7/ergopti. It costs 23 tokens per session (1,610 once invoked), scanned A, original, MIT.

A change-verification procedure that selects and runs the tests or checks relevant to edited files.

In plain words
What is it for?
It helps choose, run, and interpret targeted checks before committing code.
Why use it?
It avoids relying on a passing test suite that does not cover the change.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is adrienm7/ergopti's own configuration. It tells Claude Code and Codex how to work on ergopti itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything ergopti configures →

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is node ./tools/test/verify-change.cjs # run every gate this change needs.

Reuse

Borrowing it

Nothing to install: this file belongs to adrienm7/ergopti. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/adrienm7/ergopti/main/.agents/skills/verify-change/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/adrienm7/ergopti

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 verify-change

README.md
[![agentmods](https://agentmods.dev/badge/skills/adrienm7/ergopti/verify-change/github.svg)](https://agentmods.dev/skills/adrienm7/ergopti/verify-change)
Your own site
<a href="https://agentmods.dev/skills/adrienm7/ergopti/verify-change"><img src="https://agentmods.dev/badge/skills/adrienm7/ergopti/verify-change/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 verify-change

Your own site · 80×15
<a href="https://agentmods.dev/skills/adrienm7/ergopti/verify-change"><img src="https://agentmods.dev/badge/skills/adrienm7/ergopti/verify-change.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 23 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,610 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 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 $0.00023 $0.01610
Opus 5.5 $0.00009 $0.00644
Sonnet 5.5 $0.00005 $0.00322
Haiku 4.5 $0.00002 $0.00161

Measured today against content hash aed33517580c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

verify-change 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 today.

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/verify-change/SKILL.md · 115 lines

How it starts

The opening of the file, as written. The whole thing — 115 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Verifying a change

A green suite is not evidence unless it is the suite that covers what you changed. The AHK runner and the JS gate cover disjoint ground.

1. Let the tool pick the gates

node ./tools/test/verify-change.cjs           # run every gate this change needs
node ./tools/test/verify-change.cjs --plan    # just show which gates, and why
node ./tools/test/verify-change.cjs --all     # explicit full audit, not a micro-commit prerequisite
node ./tools/test/verify-change.cjs --all --diagnose  # classify extra historical/environment reds
node ./tools/test/verify-change.cjs --range=origin/dev..HEAD

It reads the working tree (or a range), maps each file to the gates that can catch a regression in it, prints that reasoning, then runs them and exits non-zero on failure. Prefer it over remembering the table below.

The default change-scoped run is the commit gate. --all is an explicit audit; it can expose unrelated historical debt. --all --diagnose classifies a red as a candidate regression when the current diff selects that gate, baseline/history when the extra gate does not cover the diff, or environment when the command could not run. Classification is triage, not exoneration: inspect the exact assertion and reproduce it against the baseline before calling it unrelated.

A small isolated edit does not require a persistent plan merely because an unrelated full-audit check is red. If every gate selected by the edit passes, report the historical red separately. Multi-file campaigns, audit queues, and high-risk state migrations still deserve a durable plan proportional to scope.

1b. Run on a host that matches CI, or the reds are not yours

verify-change (except --plan) and npm run test:js (except --list-features) refuse to start when the host differs from the hosted runners (tools/test/lib/host-toolchain.cjs, pinned by test-host-toolchain.cjs):

  • Node exactly as pinned in .node-version (generator output and Unicode tables follow the Node release);
  • on Linux and macOS, lua must be Lua 5.4, the run must not be root, pwsh must be on PATH, and USER and LOGNAME must be set.

Read the full file on GitHub · 115 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. today Changed · +14 lines aed33517580c
  2. 15d ago First seen · 101 lines · 23 tokens per session scan A 47b6fa014f93

Subscribe to this mod's changes

verify-change is a skill published in the GitHub repository adrienm7/ergopti (14 stars, last pushed yesterday), licensed MIT. It adds 23 tokens to every session and 1,610 once invoked, about $0.0001 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 2026-10-14.

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