probe-stray

probe-stray is a skill for Claude Code, Codex from agent-ecosystem/agent-skill-implementation. It costs 28 tokens per session (202 once invoked), scanned A, original, CC-BY-4.0.

A test skill stored outside the usual skills folders. Its description only says that it is used to check whether a skill in that location can be discovered.

In plain words
What is it for?
It is for probing discovery of skills placed in an unusual project-tree location.
Why use it?
The available information does not describe any broader coding or development capability.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit It is for probing discovery of skills placed in an unusual project-tree location.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/agent-ecosystem/agent-skill-implementation/probe-stray
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.

Any agent
npx skills add agent-ecosystem/agent-skill-implementation --skill probe-stray
Clone the repo
git clone --depth 1 https://github.com/agent-ecosystem/agent-skill-implementation

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 probe-stray

README.md
[![agentmods](https://agentmods.dev/badge/skills/agent-ecosystem/agent-skill-implementation/probe-stray/github.svg)](https://agentmods.dev/skills/agent-ecosystem/agent-skill-implementation/probe-stray)
Your own site
<a href="https://agentmods.dev/skills/agent-ecosystem/agent-skill-implementation/probe-stray"><img src="https://agentmods.dev/badge/skills/agent-ecosystem/agent-skill-implementation/probe-stray/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for probe-stray

Your own site · 80×15
<a href="https://agentmods.dev/skills/agent-ecosystem/agent-skill-implementation/probe-stray"><img src="https://agentmods.dev/badge/skills/agent-ecosystem/agent-skill-implementation/probe-stray.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 28 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 202 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found 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 5.1 $0.00028 $0.00202
Opus 5.5 $0.00011 $0.00081
Sonnet 5.5 $0.00006 $0.00040
Haiku 4.5 $0.00003 $0.00020

Measured 1mo ago against content hash d8749623686e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

probe-stray 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 1mo 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.

benchmark-skills/probe-stray/SKILL.md · 26 lines

The source is not reproduced here

Licensed CC-BY-4.0

The repository is licensed CC-BY-4.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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. 1mo ago First seen · 26 lines · 28 tokens per session scan A d8749623686e

Subscribe to this mod's changes

probe-stray is a skill published in the GitHub repository agent-ecosystem/agent-skill-implementation (6 stars, last pushed 22d ago), licensed CC-BY-4.0. It adds 28 tokens to every session and 202 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-08-31.

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