legacy_skills

legacy_skills is a skill for Claude Code, Codex from bparlan/omp-agent. It costs 0 tokens per session (100 once invoked), scanned A, original, no licence file.

A legacy health-check skill kept available for compatibility testing.

In plain words
What is it for?
Use it only when checking backward compatibility with older skill setups.
Why use it?
Its description does not identify a current coding or content task it performs.

Skill for Claude CodeCodex

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

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.

agentmods
npx agentmods add skills/bparlan/omp-agent/legacy_skills
Any agent
npx skills add bparlan/omp-agent --skill legacy_skills
Clone the repo
git clone --depth 1 https://github.com/bparlan/omp-agent

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 legacy_skills

README.md
[![agentmods](https://agentmods.dev/badge/skills/bparlan/omp-agent/legacy_skills.svg)](https://agentmods.dev/skills/bparlan/omp-agent/legacy_skills)
Your own site
<a href="https://agentmods.dev/skills/bparlan/omp-agent/legacy_skills"><img src="https://agentmods.dev/badge/skills/bparlan/omp-agent/legacy_skills.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 100 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00000 $0.00100
Opus 5 $0.00000 $0.00050
Sonnet 5 $0.00000 $0.00020
Haiku 4.5 $0.00000 $0.00010

Measured 2d ago against content hash 9552e1378fdc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

legacy_skills 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.

tests/fixtures/legacy_skills/SKILL.md · 17 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

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. 2d ago First seen · 17 lines · 0 tokens per session scan A 9552e1378fdc

Subscribe to this mod's changes

legacy_skills is a skill published in the GitHub repository bparlan/omp-agent (38 stars, last pushed 3d ago), with no licence file. It costs nothing until one of its globs matches a file; then it loads 100 tokens. 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 2026-09-04.

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