polywise: Skill for OpenCode

.opencode/skills/skill-generator/SKILL.md

skill-generator is a skill for OpenCode from MatrixAges/polywise. It costs 29 tokens per session (285 once invoked), scanned A, original, MIT.

A file generator for creating OpenCode skills, including their folders and required SKILL.md files. It follows the expected front-matter and content structure.

In plain words
What is it for?
It helps create a new specialized skill with its instructions, naming rules, best practices, and restrictions.
Why use it?
It removes the need to remember the required directories, filenames, and formatting when adding a new skill.

Skill for OpenCode

Written for OpenCode: installed under .opencode/. Also seen: mentions OpenCode.

This is MatrixAges/polywise's own configuration. It tells OpenCode how to work on polywise itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything polywise configures →

Reuse

Borrowing it

Nothing to install: this file belongs to MatrixAges/polywise. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/MatrixAges/polywise/master/.opencode/skills/skill-generator/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/MatrixAges/polywise

Made for: OpenCode.

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 skill-generator

README.md
[![agentmods](https://agentmods.dev/badge/skills/matrixages/polywise/skill-generator/github.svg)](https://agentmods.dev/skills/matrixages/polywise/skill-generator)
Your own site
<a href="https://agentmods.dev/skills/matrixages/polywise/skill-generator"><img src="https://agentmods.dev/badge/skills/matrixages/polywise/skill-generator/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 skill-generator

Your own site · 80×15
<a href="https://agentmods.dev/skills/matrixages/polywise/skill-generator"><img src="https://agentmods.dev/badge/skills/matrixages/polywise/skill-generator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 285 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original 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 $0.00029 $0.00285
Opus 5.5 $0.00012 $0.00114
Sonnet 5.5 $0.00006 $0.00057
Haiku 4.5 $0.00003 $0.00028

Measured 2mo ago against content hash 6fd475c9ba34, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

skill-generator 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 2mo 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.

.opencode/skills/skill-generator/SKILL.md · 34 lines

What it actually says

Skill Generator

This skill is used to extend new specialized skills for AI in the project, ensuring new skill files meet the project's format requirements.

1. Skill Structure

Each new skill must be placed in the .opencode/skills/{skill-name}/ directory, and its main file must be named SKILL.md.

2. SKILL.md Format Requirements

YAML Frontmatter description must be included at the top of the file, containing the following two fields:

---
name: { skill-name }
description: { A piece of English or Chinese text describing when and what the skill does }
---

3. Generation Guide

  1. Create Directory: Create a new skill-named folder under .opencode/skills/.
  2. Write Content: Use Markdown syntax to detail the following under the skill:
    • Core architecture/principles
    • Naming and code style specifications
    • Specific execution best practices
    • Mandatory red lines (what absolutely cannot be done)
  3. Language Alignment: New skill content should尽量 use Chinese (to align with unified specifications), but the YAML header name must be English letters and hyphens.
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. 2mo ago First seen · 34 lines · 29 tokens per session scan A 6fd475c9ba34

Subscribe to this mod's changes

skill-generator is a skill published in the GitHub repository MatrixAges/polywise (654 stars, last pushed 4mo ago), licensed MIT. It adds 29 tokens to every session and 285 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 2026-09-04.

Related

skill-generator compared with skills from other repositories

skill-generator next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
skill-generatorMatrixAges/polywiseSkill6544mo agoMITA29OpenCode
writing-workflow-skillsJetBrains/thinkrailSkill7.8kyesterdayApache-2.0A60Claude Code, Codex
artifact-deploykirodotdev/KiroCrewSkill4.8kyesterdayApache-2.0A74Claude Code, Codex
explain-forkirodotdev/KiroCrewSkill4.8kyesterdayApache-2.0A71Claude Code, Codex
writing-specsJetBrains/thinkrailSkill7.8kyesterdayApache-2.0A59Claude Code, Codex
mochi-remindkirodotdev/KiroCrewSkill4.8kyesterdayApache-2.0A20Claude Code, Codex
papyrus-latex-suggestionskirodotdev/KiroCrewSkill4.8kyesterdayApache-2.0A69Claude Code, Codex