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Agent skill

Change Impact Auditor

by caarlos0 in caarlos0/dotfiles

Trace a behavioral change through consumers, defaults, docs, tests, errors, and UI.

MITAuto-check passedDevelopment

Install Change Impact Auditor

skills CLI
$ npx skills add caarlos0/dotfiles --skill change-impact-auditor -a claude-code

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

GitHub CLI
$ gh skill install caarlos0/dotfiles change-impact-auditor --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/caarlos0/dotfiles.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/change-impact-auditor .claude/skills/change-impact-auditor && 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
change-impact-auditor
GitHub stars
220
Token cost
~234 tokens
SKILL.md length
97 words
Files
1
Skills in repo
20
Repo updated
First seen
Licence
MIT

At a glance

Trace a behavioral change through consumers, defaults, docs, tests, errors, and UI.

  • Works in 6 steps: Identify the old and new behavior in one… → Search all producers, consumers,… → Check command help, user-facing errors,… → …
  • Changing configuration
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • Shared data models

What it does

Change Impact Auditor is an agent skill from caarlos0/dotfiles. Trace a behavioral change through consumers, defaults, docs, tests, errors, and UI. Use when changing configuration, policy, defaults, protocols, or shared data models.

Its SKILL.md is about 230 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Development. The licence is MIT.

When your agent uses it

  • Changing configuration
  • Shared data models

Example prompts

  • “/change-impact-auditor”

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

  1. Identify the old and new behavior in one sentence.
  2. Search all producers, consumers, serializers, defaults, migrations, caches,
  3. Check command help, user-facing errors, documentation, examples, UI status,
  4. Trace equivalent implementations across languages or process boundaries.
  5. Verify absent, explicit false, explicit true, error, reload, and startup
  6. Report contradictions separately from intentionally deferred scope.

What it can do on your machine

Read from SKILL.md and the folder at commit 892360f. 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

    No scripts in the folder and no shell commands in SKILL.md.

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

  • Network

    No URLs in SKILL.md.

    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

Change Impact Auditor loads about 234 tokens when it runs. Until then it costs about 48 tokens; SKILL.md has 97 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~48
When it runs · the whole SKILL.md, loaded when a task matches
~234

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 caarlos0/dotfiles at commit 892360f, republished under its MIT licence (© caarlos0). 97 words, ~234 tokens.

Download SKILL.mdSave it as .claude/skills/change-impact-auditor/SKILL.md (or your agent's skills folder).
name
change-impact-auditor
description
Trace a behavioral change through consumers, defaults, docs, tests, errors, and UI. Use when changing configuration, policy, defaults, protocols, or shared data models.

Change Impact Auditor

Audit the semantic concept, not just the edited symbol.

  1. Identify the old and new behavior in one sentence.
  2. Search all producers, consumers, serializers, defaults, migrations, caches, and fallback paths.
  3. Check command help, user-facing errors, documentation, examples, UI status, and tests for claims that became false.
  4. Trace equivalent implementations across languages or process boundaries.
  5. Verify absent, explicit false, explicit true, error, reload, and startup states when relevant.
  6. Report contradictions separately from intentionally deferred scope.

Do not update text mechanically. Confirm each reference describes the changed behavior before editing it.

© caarlos0, 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 skills/change-impact-auditor of caarlos0/dotfiles.

Open the folder on GitHubat commit 892360f

Compare with similar skills

Change Impact Auditor 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.

Change Impact Auditor compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Change Impact Auditor this skillcaarlos0/dotfiles220—~234Automated safety check: PassMIT
Vercel Composition Patternssupabase/supabase111k58 repos~726Automated safety check: PassMIT
Finishing a Development Branchobra/superpowers297k5 repos~1.9kAutomated safety check: PassMIT
Typescript Advanced Typesrolling-scopes/rsschool-app10k25 repos~4.2kAutomated safety check: PassMPL-2.0
PR Babysitteropeninterpreter/openinterpreter69k3 repos~4.2kAutomated safety check: PassApache-2.0
Code Review ChecklistshareAI-lab/learn-claude-code78k4 repos~1.1kAutomated safety check: PassMIT

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Categories

Questions about Change Impact Auditor

What does Change Impact Auditor do?

Trace a behavioral change through consumers, defaults, docs, tests, errors, and UI. Change Impact Auditor is an agent skill from caarlos0/dotfiles. Trace a behavioral change through consumers, defaults, docs, tests, errors, and UI.

When should I use Change Impact Auditor?

Change Impact Auditor fits situations like: changing configuration; shared data models.

How do I install Change Impact Auditor in Claude Code?

Run `npx skills add caarlos0/dotfiles --skill change-impact-auditor -a claude-code`. Or copy the skill folder (skills/change-impact-auditor in caarlos0/dotfiles) into .claude/skills/change-impact-auditor in your project. Claude Code loads it when a task matches its description.

How do I install Change Impact Auditor in Codex?

Run `npx skills add caarlos0/dotfiles --skill change-impact-auditor -a codex`. Or copy the skill folder (skills/change-impact-auditor in caarlos0/dotfiles) into .agents/skills/change-impact-auditor in your project. Codex loads it when a task matches its description.

Can I use Change Impact Auditor 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 caarlos0/dotfiles --skill change-impact-auditor -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/change-impact-auditor, .gemini/skills/change-impact-auditor, .github/skills/change-impact-auditor and .opencode/skills/change-impact-auditor in your project.

What does Change Impact Auditor need to run?

SKILL.md names no scripts, command-line tools or credentials: Change Impact Auditor is instructions for the agent only.

Does Change Impact Auditor access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Change Impact Auditor 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 Change Impact Auditor use?

Change Impact Auditor 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 Change Impact Auditor use?

About 234 tokens (SKILL.md is roughly 936 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 Change Impact Auditor?

Skills that share tags, products or a category with Change Impact Auditor: Vercel Composition Patterns (supabase/supabase, 111k stars), Finishing a Development Branch (obra/superpowers, 297k stars), Typescript Advanced Types (rolling-scopes/rsschool-app, 10k stars) and PR Babysitter (openinterpreter/openinterpreter, 69k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Change Impact Auditor?

caarlos0 (a GitHub user) maintains it in caarlos0/dotfiles, which has 220 GitHub stars. The repository holds 20 skills in this directory. The repository was last updated on October 9, 2026.

Source: caarlos0/dotfiles on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.