# Probe Nonstandard Fields

> Benchmark skill for testing how platforms handle nonstandard frontmatter fields. Use when asked to probe nonstandard fields.

- Skill: `agent-ecosystem/probe-nonstandard-fields` (Agent Skill)
- Install (CLI): `npx skillmds@latest add agent-ecosystem/probe-nonstandard-fields`
- Raw SKILL.md: https://api.skillmd.com/api/skills/agent-ecosystem/probe-nonstandard-fields/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: agent-ecosystem (https://skillmd.com/u/agent-ecosystem)
- Updated: 2026-09-22
- Page: https://skillmd.com/skills/agent-ecosystem/probe-nonstandard-fields

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# Nonstandard Fields Probe

This skill uses frontmatter fields that are NOT in the Agent Skills
specification: `requires`, `depends-on`, and `priority`. It tests whether
any platform recognizes and acts on these fields.

## Instructions

When activated, report:

1. **Field visibility**: Can you see the nonstandard frontmatter fields
   (`requires`, `depends-on`, `priority`)? If so, list their values.

2. **Platform behavior**: Did the platform do anything with these fields?
   For example:
   - Did it attempt to load `probe-loading` based on the `requires` field?
   - Did it attempt to load `probe-shadow-alpha` and `probe-shadow-beta`
     based on the `depends-on` field?
   - Did it order skills or change behavior based on `priority`?
   - Or were the fields silently ignored?

3. **Validation**: Did the platform warn about unrecognized frontmatter
   fields, or accept them silently?