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Agent skill

Code Change Verification

by harukiseller-droid in harukiseller-droid/commerce-agent-bench

Verify a source change, its tests, its diff boundaries, and remaining risk.

MITAuto-check passed

Install Code Change Verification

skills CLI
$ npx skills add harukiseller-droid/commerce-agent-bench --skill code-change-verification -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install harukiseller-droid/commerce-agent-bench code-change-verification --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/harukiseller-droid/commerce-agent-bench.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/code-change-verification .claude/skills/code-change-verification && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
code-change-verification
GitHub stars
102
Token cost
~370 tokens
SKILL.md length
177 words
Files
1
Skills in repo
10
Repo updated
First seen
Licence
MIT

At a glance

Verify a source change, its tests, its diff boundaries, and remaining risk.

  • SKILL.md covers Purpose, When to use, Inputs and Required checks, plus 3 more sections
  • Calls git

What it does

Code Change Verification is an agent skill from harukiseller-droid/commerce-agent-bench. Verify a source change, its tests, its diff boundaries, and remaining risk.

Its SKILL.md is about 370 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

The licence is MIT.

Example prompts

  • “/code-change-verification”

What it can do on your machine

Read from SKILL.md and the folder at commit f818ba8. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • git

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use git, which can reach the network depending on how they are called.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Code Change Verification loads about 370 tokens when it runs. Until then it costs about 25 tokens; SKILL.md has 177 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~25
When it runs · the whole SKILL.md, loaded when a task matches
~370

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from harukiseller-droid/commerce-agent-bench at commit f818ba8, republished under its MIT licence (© harukiseller-droid). 177 words, ~370 tokens.

Download SKILL.mdSave it as .claude/skills/code-change-verification/SKILL.md (or your agent's skills folder).
name
code-change-verification
description
Verify a source change, its tests, its diff boundaries, and remaining risk.

Code Change Verification

Purpose

Provide a repeatable final gate for source changes before merge or release.

When to use

Use for every source-code modification and before completing a substantial pull request.

Inputs

  • the working-tree diff and base revision;
  • project test and eval commands;
  • dependency, generated-artifact, and runtime context.

Required checks

  • Inspect the full diff and changed file list.
  • Run project tests.
  • Run deterministic evals.
  • Check changed behavior against the requested contract.
  • Check for unexpected files.
  • Check dependency changes.
  • Check generated artifacts and secrets.
  • Summarize remaining risk and unverified behavior.

Output contract

Return exactly one top-level status:

text
PASS
PASS WITH WARNINGS
FAIL

Include commands, exact results, changed scope, warnings, and remaining risk below the status.

Failure conditions

  • FAIL if a required test/eval fails, the diff contains an unrelated change, or a secret is detected.
  • PASS WITH WARNINGS when deterministic checks pass but required runtime or external-platform evidence is unavailable.
  • Never claim a test ran when it did not run.

Verification

Run the final commands from the repository contract, review git diff --check, inspect status, and repeat any invalidated gate after the last change.

© harukiseller-droid, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in .agents/skills/code-change-verification of harukiseller-droid/commerce-agent-bench.

Open the folder on GitHubat commit f818ba8

Compare with similar skills

Code Change Verification next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Code Change Verification compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Code Change Verification this skillharukiseller-droid/commerce-agent-bench102—~370Automated safety check: PassMIT
Diffsopenclaw/openclaw392k4 repos~461Automated safety check: PassMIT
Accesslint Diffsickn33/agentic-awesome-skills47k1 repos~1.2kAutomated safety check: PassMIT
Diff Reviewnexu-io/open-design100k—~508Automated safety check: PassApache-2.0
Diff Analyzeruvnet/ruflo74k—~450Automated safety check: NotesMIT
Binary Diffsickn33/agentic-awesome-skills47k1 repos~2.1kAutomated safety check: PassMIT

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  • Diffs

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Questions about Code Change Verification

What does Code Change Verification do?

Verify a source change, its tests, its diff boundaries, and remaining risk. Code Change Verification is an agent skill from harukiseller-droid/commerce-agent-bench. Verify a source change, its tests, its diff boundaries, and remaining risk.

How do I install Code Change Verification in Claude Code?

Run `npx skills add harukiseller-droid/commerce-agent-bench --skill code-change-verification -a claude-code`. Or copy the skill folder (.agents/skills/code-change-verification in harukiseller-droid/commerce-agent-bench) into .claude/skills/code-change-verification in your project. Claude Code loads it when a task matches its description.

How do I install Code Change Verification in Codex?

Run `npx skills add harukiseller-droid/commerce-agent-bench --skill code-change-verification -a codex`. Or copy the skill folder (.agents/skills/code-change-verification in harukiseller-droid/commerce-agent-bench) into .agents/skills/code-change-verification in your project. Codex loads it when a task matches its description.

Can I use Code Change Verification in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add harukiseller-droid/commerce-agent-bench --skill code-change-verification -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/code-change-verification, .gemini/skills/code-change-verification, .github/skills/code-change-verification and .opencode/skills/code-change-verification in your project.

What does Code Change Verification need to run?

Going by SKILL.md and its folder, Code Change Verification needs the command-line tools its instructions call (git).

Does Code Change Verification access the network?

SKILL.md contains no URLs. Its commands use git, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Code Change Verification safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Code Change Verification use?

Code Change Verification is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Code Change Verification use?

About 370 tokens (SKILL.md is roughly 1.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Code Change Verification?

Skills that share tags, products or a category with Code Change Verification: Diffs (openclaw/openclaw, 392k stars), Accesslint Diff (sickn33/agentic-awesome-skills, 47k stars), Diff Review (nexu-io/open-design, 100k stars) and Diff Analyze (ruvnet/ruflo, 74k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Code Change Verification?

harukiseller-droid (a GitHub user) maintains it in harukiseller-droid/commerce-agent-bench, which has 102 GitHub stars. The repository holds 10 skills in this directory. The repository was last updated on August 12, 2026.

Source: harukiseller-droid/commerce-agent-bench on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.