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check-agent-parity

Compare Claude Code, Codex CLI, and Gemini CLI configurations for parity gaps.

Updated Aug 23, 2026
Search Tags:#audit#CLI#agents#cross-platform#drift#parity
One-click install
npx skills add https://github.com/jmagar/rust-bin --skill check-agent-parity
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: check-agent-parity
Source: https://github.com/jmagar/rust-bin/tree/main/.claude/skills/check-agent-parity
Command: npx skills add https://github.com/jmagar/rust-bin --skill check-agent-parity

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Audits cross-platform parity between Claude Code, Codex CLI, and Gemini CLI configurations for skills, subagents, hooks, and MCP servers, surfacing actionable deltas while respecting platform differences and portability rules.

Core Features & Use Cases

  • Drift detection across platforms by comparing names, frontmatter, and body content to keep skills in sync.
  • Portability guidance that identifies non-portable gaps and recommends concrete porting actions.
  • Canonical references using the agent-config platform-matrix as the source of truth for cross-platform rules.

Quick Start

Run the audit using the standard parity-check workflow and review the generated report to address gaps in tooling, hooks, or MCP servers.

Frequently Asked Questions about check-agent-parity

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I audit cross-platform parity between Claude Code, Codex CLI, and Gemini CLI?▼

Drift detection compares SKILL.md names, frontmatter, and body content across Claude Code, Codex CLI, and Gemini CLI to flag configuration mismatches and surface actionable deltas for skills, subagents, hooks, and MCP servers.

What is cross-platform configuration drift in CLI agents?▼

Configuration drift happens when skills, subagents, hooks, or MCP servers become unsynchronized across Claude Code, Codex CLI, and Gemini CLI. Parity audits compare SKILL.md frontmatter and body content against the canonical agent-config platform-matrix to surface these gaps.

How do I check if my CLI agent skills are portable across platforms?▼

Portability checks compare SKILL.md frontmatter and body content against the canonical agent-config platform-matrix to identify non-portable gaps and recommend concrete porting actions for skills, subagents, hooks, and MCP servers across available platforms.

Can I use a parity audit to detect MCP server configuration differences across CLI platforms?▼

Yes, parity audits detect MCP server configuration differences by comparing platform-specific setups across Claude Code, Codex CLI, and Gemini CLI. The audit references the canonical agent-config platform-matrix to flag drift and portability gaps for MCP servers.

What is the best way to find configuration mismatches between Codex CLI and Gemini CLI?▼

The best way to find configuration mismatches is running a parity audit that compares SKILL.md frontmatter, body content, and related config files against the canonical agent-config platform-matrix to produce actionable findings on platform-specific differences.

Why does my skill configuration work in Claude Code but not in Codex CLI?▼

Skills may fail across platforms due to configuration drift or non-portable settings. A parity audit compares your SKILL.md frontmatter and body content against the canonical agent-config platform-matrix to identify portability gaps and recommend concrete porting actions.

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