xiaolai

A tool for checking the quality of natural-language programming materials, such as prompts, rules, and agent skills. It works with Claude Code, Codex CLI, and Antigravity.

In plain words
What is it for?
It is for scoring, checking, fixing, and testing prompts, skills, rules, and similar natural-language files across several coding agents.
Why use it?
It helps find problems in instructions and other text-based agent materials before they cause inconsistent results.

Plugin for Claude Code

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.

Claude Code
/plugin marketplace add xiaolai/nlpm
agentmods
npx agentmods add plugins/xiaolai/nlpm/marketplace
Clone the repo
git clone --depth 1 https://github.com/xiaolai/nlpm

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

xiaolai 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 2d 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.

.claude-plugin/marketplace.json · 40 lines

What it actually says

{
  "name": "xiaolai",
  "owner": {
    "name": "xiaolai"
  },
  "metadata": {
    "description": "nlpm \u2014 Natural-Language Programming Manager by xiaolai"
  },
  "plugins": [
    {
      "name": "nlpm",
      "source": {
        "source": "github",
        "repo": "xiaolai/nlpm"
      },
      "description": "Natural-Language Programming Manager \u2014 score, check, fix, and test NL artifacts across Claude Code, Codex CLI, and Antigravity. Tier-aware scoring with per-tool overlays.",
      "version": "1.2.5",
      "author": {
        "name": "xiaolai"
      },
      "repository": "https://github.com/xiaolai/nlpm",
      "license": "ISC",
      "keywords": [
        "nlp",
        "lint",
        "prompt",
        "skill",
        "agent",
        "rules",
        "quality",
        "claude",
        "codex",
        "antigravity",
        "multi-tool"
      ],
      "category": "developer-tools"
    }
  ]
}
Files

What ships with it

1 file beside marketplace.json in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 2d ago First seen · 40 lines scan A 4ecfa86afd49

Subscribe to this mod's changes

xiaolai is a plugin published in the GitHub repository xiaolai/nlpm (133 stars, last pushed 2d ago), licensed ISC. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.