Agent skill

Vibe Anti Rationalization Check

by ash1794 in ash1794/vibe-engineering

Catches shortcuts and reward hacking — weakening or deleting tests to make them pass, hard-coding expected outputs, silently dropping requirements, or claiming work is done without running it.

MITAuto-check passed

Install Vibe Anti Rationalization Check

skills CLI
$ npx skills add ash1794/vibe-engineering --skill vibe-anti-rationalization-check -a claude-code

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

GitHub CLI
$ gh skill install ash1794/vibe-engineering vibe-anti-rationalization-check --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/ash1794/vibe-engineering.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/vibe-engineering/skills/vibe-anti-rationalization-check .claude/skills/vibe-anti-rationalization-check && 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
vibe-anti-rationalization-check
GitHub stars
163
Token cost
~999 tokens
SKILL.md length
522 words
Files
1
Skills in repo
33
Repo updated
First seen
Licence
MIT

At a glance

Catches shortcuts and reward hacking — weakening or deleting tests to make them pass, hard-coding expected outputs, silently dropping requirements, or claiming work is done without running it.

  • Works in 5 steps: Diff check — Review your own diff for… → Requirement check — Re-read the original… → Evidence check — For each "works" or… → …
  • SKILL.md covers When to Use This Skill, When NOT to Use This Skill, Reward-Hacking Patterns and Steps, plus 1 more section
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Vibe Anti Rationalization Check is an agent skill from ash1794/vibe-engineering. Catches shortcuts and reward hacking — weakening or deleting tests to make them pass, hard-coding expected outputs, silently dropping requirements, or claiming work is done without running it. Use before declaring a task complete and whenever a test or requirement feels like it's in the way.

Its SKILL.md is about 1000 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

The repository describes itself as: 33 engineering discipline skills for Claude Code, OpenAI Codex & Gemini CLI + a CLI for CI/CD enforcement. Extracted from real-world multi-agent system development. Born from… The licence is MIT.

Example prompts

  • “Use the vibe-anti-rationalization-check skill to catch shortcuts and reward hacking — weakening or deleting tests to make them pass, hard-coding…”
  • “/vibe-anti-rationalization-check”

Workflow steps

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

  1. Diff check — Review your own diff for the patterns above. Pay particular attention to changes under test directories, in CI config, and in…
  2. Requirement check — Re-read the original request. List every requirement and mark each one done or not done.
  3. Evidence check — For each "works" or "passes" claim, is there command output from this session behind it?
  4. Resolve
  5. Disclose — If anything was skipped, weakened, or changed in a test, say so plainly in the final summary. Never hide a shortcut.

What it can do on your machine

Read from SKILL.md and the folder at commit 8f1d71b. 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

Vibe Anti Rationalization Check loads about 999 tokens when it runs. Until then it costs about 81 tokens; SKILL.md has 522 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~81
When it runs · the whole SKILL.md, loaded when a task matches
~999

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 ash1794/vibe-engineering at commit 8f1d71b, republished under its MIT licence (© ash1794). 522 words, ~999 tokens.

Download SKILL.mdSave it as .claude/skills/vibe-anti-rationalization-check/SKILL.md (or your agent's skills folder).
name
vibe-anti-rationalization-check
description
Catches shortcuts and reward hacking — weakening or deleting tests to make them pass, hard-coding expected outputs, silently dropping requirements, or claiming work is done without running it. Use before declaring a task complete and whenever a test or requirement feels like it's in the way.
user-invocable
true

vibe-anti-rationalization-check

Current models rarely skip work out of laziness. The failure that remains is subtler: satisfying the check instead of the goal. A test gets special-cased, an assertion loosened, a requirement quietly narrowed, and the summary says "done." This skill catches that and makes it visible.

When to Use This Skill

  • Before saying a task is complete, fixed, or passing
  • A test is failing and the quickest route to green is changing the test
  • You're about to narrow a requirement the user stated
  • You're about to write "in the interest of time...", "for now...", or "simplified"
  • You catch yourself explaining why something "doesn't really need" to be done

When NOT to Use This Skill

  • The user explicitly asked to skip or simplify something
  • The test itself is genuinely wrong (fix it, but say so explicitly and explain why)
  • You're genuinely unsure whether something is needed (ask the user instead)

Reward-Hacking Patterns

PatternWhat it looks likeDo instead
Test tamperingLoosening an assertion, adding a skip, deleting a failing case, raising a toleranceFix the code. If the test is wrong, change it and say why in the summary.
Special-casingif input == <test fixture>: return <expected> or detecting the test environmentImplement the general behavior.
Hard-coded outputsReturning the literal value a test expectsCompute it.
Mocking away the subjectMocking the very function the test is supposed to exerciseMock only external boundaries.
Silent scope cutImplementing 4 of 5 requirements and summarizing as "done"Finish, or list exactly what is missing.
Unverified claim"This should fix it" / "Tests pass" without running themRun the command and quote the result.
Budget looseningRaising a performance/size budget or threshold because the check failedFix the code; changing a budget needs a spec change and a stated reason
"It's flaky"Re-running until green, adding a retryFind the variable (vibe-flake-root-cause)
Self-approvalRecording a human's approval on their behalf, or treating a code comment as sign-offPoint the human to the item to approve (vibe-publication-leak-guard)
Error swallowingcatch {} / except: pass to stop a crashHandle the specific error, or let it surface.
Deferred forever"I'll add that later" with no tracked follow-upDo it now, or create a tracked issue/TODO with a reference.
Show full SKILL.md (151 more words)Show less

Steps

  1. Diff check — Review your own diff for the patterns above. Pay particular attention to changes under test directories, in CI config, and in lint/skip annotations.
  2. Requirement check — Re-read the original request. List every requirement and mark each one done or not done.
  3. Evidence check — For each "works" or "passes" claim, is there command output from this session behind it?
  4. Resolve:
    • A legitimate reason to deviate → ask the user, or state it prominently in the summary
    • A rationalization → do the work
  5. Disclose — If anything was skipped, weakened, or changed in a test, say so plainly in the final summary. Never hide a shortcut.

Output

When run as a self-check, report only if something was found. When invoked explicitly:

Rationalization Check
#PatternLocationResolution
1Test tamperingauth_test.go:88 tolerance 0.01 → 0.5Reverted; fixed rounding in calc.go

Requirements: X/Y met — [list any not met] Unverified claims: [none / list]

© ash1794, 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 plugins/vibe-engineering/skills/vibe-anti-rationalization-check of ash1794/vibe-engineering.

Open the folder on GitHubat commit 8f1d71b

Compare with similar skills

Vibe Anti Rationalization Check 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.

Vibe Anti Rationalization Check compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Vibe Anti Rationalization Check this skillash1794/vibe-engineering163—~999Automated safety check: PassMIT
Vibeforyourhealth111-pixel/Vibe-Skills3.6k—~4.6kAutomated safety check: WarnApache-2.0
Studio Shortcutssupabase/supabase111k—~919Automated safety check: PassApache-2.0
Vibe Delegatesickn33/agentic-awesome-skills47k1 repos~1.8kAutomated safety check: PassMIT
Recognition Rewardssickn33/agentic-awesome-skills47k1 repos~3.4kAutomated safety check: PassMIT
Hackyaklang/hack-skills2.4k—~4.7kAutomated safety check: NotesMIT

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Questions about Vibe Anti Rationalization Check

What does Vibe Anti Rationalization Check do?

Catches shortcuts and reward hacking — weakening or deleting tests to make them pass, hard-coding expected outputs, silently dropping requirements, or claiming work is done without running it. Vibe Anti Rationalization Check is an agent skill from ash1794/vibe-engineering. Catches shortcuts and reward hacking — weakening or deleting tests to make them pass, hard-coding expected outputs, silently dropping requirements, or claiming work is done without running it.

How do I install Vibe Anti Rationalization Check in Claude Code?

Run `npx skills add ash1794/vibe-engineering --skill vibe-anti-rationalization-check -a claude-code`. Or copy the skill folder (plugins/vibe-engineering/skills/vibe-anti-rationalization-check in ash1794/vibe-engineering) into .claude/skills/vibe-anti-rationalization-check in your project. Claude Code loads it when a task matches its description.

How do I install Vibe Anti Rationalization Check in Codex?

Run `npx skills add ash1794/vibe-engineering --skill vibe-anti-rationalization-check -a codex`. Or copy the skill folder (plugins/vibe-engineering/skills/vibe-anti-rationalization-check in ash1794/vibe-engineering) into .agents/skills/vibe-anti-rationalization-check in your project. Codex loads it when a task matches its description.

Can I use Vibe Anti Rationalization Check 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 ash1794/vibe-engineering --skill vibe-anti-rationalization-check -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/vibe-anti-rationalization-check, .gemini/skills/vibe-anti-rationalization-check, .github/skills/vibe-anti-rationalization-check and .opencode/skills/vibe-anti-rationalization-check in your project.

What does Vibe Anti Rationalization Check need to run?

SKILL.md names no scripts, command-line tools or credentials: Vibe Anti Rationalization Check is instructions for the agent only.

Does Vibe Anti Rationalization Check 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 Vibe Anti Rationalization Check 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 Vibe Anti Rationalization Check use?

Vibe Anti Rationalization Check 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 Vibe Anti Rationalization Check use?

About 999 tokens (SKILL.md is roughly 4k 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 Vibe Anti Rationalization Check?

Skills that share tags, products or a category with Vibe Anti Rationalization Check: Vibe (foryourhealth111-pixel/Vibe-Skills, 3.6k stars), Studio Shortcuts (supabase/supabase, 111k stars), Vibe Delegate (sickn33/agentic-awesome-skills, 47k stars) and Recognition Rewards (sickn33/agentic-awesome-skills, 47k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Vibe Anti Rationalization Check?

ash1794 (a GitHub user) maintains it in ash1794/vibe-engineering, which has 163 GitHub stars. The repository holds 33 skills in this directory. The repository was last updated on October 7, 2026.

Source: ash1794/vibe-engineering on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.