Claude-Codex Skills

Claude Code + Codex · standalone by design

Focused skills.
Small plugins.
No orchestration theater.

A compact engineering toolkit that reminds capable models about the hard parts: evidence, boundaries, independent viewpoints, reversible experiments, and residual risk.

Explore the catalog Install a plugin
01

Standalone

No MCP, tracker, coordinator, worker hierarchy, or shared prompt harness.

02

Evidence first

Findings, verdicts, and changes are tied to observable evidence and limitations.

03

Host neutral

One canonical SKILL.md works in both Claude Code and Codex.

The catalog

Choose the capability,
not a workflow empire.

The first digit identifies the plugin family. The second identifies a skill inside it.

1×

Plugin 01

Review Suite

Independent, read-only gates for plans and delivered code.

  1. 11
    Plan Reviewer

    Tests a proposed implementation against repository evidence, risks, and missing decisions.

  2. 12
    Delivery Reviewer

    Reviews completed code through independent, risk-selected perspectives and a strict delivery verdict.

2×

Plugin 02

Codebase Audit Suite

Read-only audits that separate confirmed evidence from uncertainty.

  1. 21
    Documentation Auditor

    Trust, coverage, structure, freshness, and factual accuracy.

  2. 22
    Codebase Auditor

    Security boundaries, delivery gates, maintainability, and diagnosability.

  3. 23
    Test Suite Auditor

    Portfolio value, risk coverage, isolation, and oracle strength.

  4. 24
    Architecture Auditor

    Ownership, contracts, dependency topology, and structural fitness.

  5. 25
    Persistence Auditor

    Queries, transactions, consistency, concurrency, and resource lifecycle.

3×

Plugin 03

Optimization Suite

Bounded changes survive only when measurements justify keeping them.

  1. 31
    Performance Optimizer

    Profile, experiment, compare, and keep only reproducible improvements.

  2. 32
    Dependency Upgrader

    Upgrade in reversible batches with compatibility and regression evidence.

  3. 33
    Code Modernizer

    Simplify or replace a bounded capability only when net value is proven.

  4. 34
    Benchmark Comparator

    Compare alternatives under a frozen experiment contract.

4×

Plugin 04

Testing Suite

Risk-shaped strategy and executable acceptance evidence.

  1. 41
    Test Strategy Planner

    Maps requirements and defect classes to the right test boundary and oracle.

  2. 42
    Acceptance Test Builder

    Creates reproducible tests without silently repairing product defects.

5×

Plugin 05

Product Discovery Suite

External viability before implementation enthusiasm.

  1. 51
    Opportunity Evaluator

    Compares demand, acquisition, competition, economics, and validation cost using current evidence.

6×

Plugin 06

Maintainer Suite

Optional, repository-aware workflows for maintainers who review skills and publish code, releases, or project news.

  1. 61
    Skill Reviewer

    Checks standalone contracts, triggers, behavior, and configured distribution surfaces before publication.

  2. 62
    Repository Publisher

    Validates, commits, pushes, and verifies approved changes from their authorized remote.

  3. 63
    Release Publisher

    Builds an evidence-backed tagged release and waits for approval before publication.

  4. 64
    Community Announcer

    Drafts, fact-checks, and publishes GitHub Discussions announcements after approval.

7×

Plugin 07

Architecture Suite

Independent workflows that create durable architecture artifacts and communicate only through optional repository documents.

  1. 71
    System Design Baseline Builder

    Establishes measurable architecture drivers and constraints in one project baseline.

  2. 72
    Current Architecture Documenter

    Maps implemented architecture from repository evidence without issuing an audit verdict.

  3. 73
    System Design Proposal Builder

    Turns requirements, estimates, boundaries, and tradeoffs into a target design.

  4. 74
    Architecture Decision Recorder

    Preserves one significant decision with alternatives, consequences, and review triggers.

  5. 75
    Architecture Diagram Builder

    Creates evidence-backed current or target views with explicit scope and notation.

  6. 76
    Architecture Migration Planner

    Plans reversible coexistence, data movement, cutover, rollback, and old-path removal.

Install only what you need

Small plugins.
No mandatory bundle.

Claude Code

/plugin marketplace add levnikolaevich/claude-code-skills
/plugin install review-suite@levnikolaevich-skills-marketplace

Codex

codex plugin marketplace add levnikolaevich/claude-code-skills
codex plugin add review-suite@levnikolaevich-skills-marketplace

Replace review-suite with codebase-audit-suite, optimization-suite, testing-suite, product-discovery-suite, maintainer-suite, or architecture-suite.