vibe-gap-analysis

vibe-gap-analysis is a skill for Claude Code, Codex from mracal/vibe-engineering. It costs 36 tokens per session (1,358 once invoked), scanned A, a copy of vibe-gap-analysis, MIT.

A comparison of a project's written specifications and architecture against its actual code. It can be a quick structural check or a deeper audit across 17 areas.

In plain words
What is it for?
Use it before launching, when taking over a codebase, after a major refactor, or during a readiness review. It can inspect the whole project or selected audit areas.
Why use it?
It reveals missing, incomplete, or lost work before release or after a major refactor. It gives a clearer answer to whether the project is ready for production.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/mracal/vibe-engineering/gap-analysis
Any agent
npx skills add mracal/vibe-engineering --skill gap-analysis
Clone the repo
git clone --depth 1 https://github.com/mracal/vibe-engineering

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 vibe-gap-analysis

README.md
[![agentmods](https://agentmods.dev/badge/skills/mracal/vibe-engineering/gap-analysis.svg)](https://agentmods.dev/skills/mracal/vibe-engineering/gap-analysis)
Your own site
<a href="https://agentmods.dev/skills/mracal/vibe-engineering/gap-analysis"><img src="https://agentmods.dev/badge/skills/mracal/vibe-engineering/gap-analysis.svg" alt="Measured on agentmods" height="20"></a>
Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,358 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod 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 $0.00036 $0.01358
Opus 5 $0.00018 $0.00679
Sonnet 5 $0.00007 $0.00272
Haiku 4.5 $0.00004 $0.00136

Measured 4d ago against content hash 092ddcd537ea, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

vibe-gap-analysis 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 4d 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.

Origin

This is a copy

100% identical to vibe-gap-analysis — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/gap-analysis/SKILL.md · 144 lines

How it starts

The opening of the file, as written. The whole thing — 144 lines — stays where its author put it; the contents beside it link to each section on GitHub.

vibe-gap-analysis

Cynical gap analysis comparing specs/architecture to actual implementation. Three modes from fast to exhaustive. Works with any project that has architecture docs and implementation code.

When to Use This Skill

  • Before launching to production
  • After a major refactor to verify nothing was lost
  • When inheriting a codebase and need to assess completeness
  • Periodic production readiness audits
  • When stakeholders ask "how done are we?"

When NOT to Use This Skill

  • Greenfield projects with no specs yet (write specs first)
  • Simple bug fixes or feature additions
  • Frontend-only or design-only reviews

Usage

/vibe-gap-analysis              # Quick static (5 structural dimensions)
/vibe-gap-analysis --deep       # Full 17-dimension audit with parallel agents
/vibe-gap-analysis --dim N      # Single dimension deep-dive (1-17)
/vibe-gap-analysis --dim 1,4,9  # Multiple specific dimensions

Modes

Quick Static (default)

Fast, single-agent structural audit. No subagents dispatched.

  1. Read architecture/design docs in docs/ or similar
  2. Read implementation code in src/, internal/, lib/ etc.
  3. Compare implementation against architecture doc section by section
  4. Cover dimensions 1-5 (structural):
    • Dim 1: Spec Compliance — check specs against implementation
    • Dim 2: Backend Code Quality — test coverage, error handling, lint issues
    • Dim 3: Frontend Completeness — UI components, routes, test coverage
    • Dim 4: Deployment & Ops — deploy scripts, CI/CD, Docker, TLS
    • Dim 5: Architecture Integrity — design pattern compliance, component boundaries
  5. Produce structured gap report: component, expected status, actual status, % complete, action items
  6. Save to docs/plans/gap-analysis-$(date +%Y%m%d).md
  7. Commit with docs: gap analysis $(date +%Y%m%d)

Deep (--deep)

Full 17-dimension audit using parallel subagents. Exhaustive production readiness assessment.

Dispatch parallel agents (model: sonnet) in 3 rounds:

Read the full file on GitHub · 144 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. 4d ago First seen · 144 lines · 36 tokens per session scan A 092ddcd537ea

Subscribe to this mod's changes

vibe-gap-analysis is a skill published in the GitHub repository mracal/vibe-engineering (3 stars, last pushed 4d ago), licensed MIT. It adds 36 tokens to every session and 1,358 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to vibe-gap-analysis, differing in 0 lines, and is treated as a copy.

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