mtga: Skill for Codex

.codex/skills/pwsh/SKILL.md

pwsh is a skill for Codex from BiFangKNT/mtga. It costs 102 tokens per session (738 once invoked), scanned A, original, AGPL-3.0.

A guide for writing and running reliable commands in Windows PowerShell 5.1 and 7. PowerShell is Microsoft's command-line shell for running programs and automating Windows tasks.

In plain words
What is it for?
Use it when commands contain filters such as jq expressions, when PowerShell 5.1 and 7 differ, or when adapting commands for PowerShell 7.3 and later.
Why use it?
It helps avoid quoting, pipeline, argument-passing, and version-compatibility errors when commands behave differently across PowerShell versions.

Skill for Codex

Written for Codex: agents/openai.yaml present.

This is BiFangKNT/mtga's own configuration. It tells Codex how to work on mtga 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 mtga configures →

About the project

MTGA is a local proxy application that lets users work around an IDE's fixed model-provider restrictions by forwarding requests to configured AI services. It supports Windows and macOS and connects the Trae IDE with providers including OpenAI-compatible, Anthropic, and Gemini services.

BiFangKNT/mtga · 1,162 stars · on GitHub

Reuse

Borrowing it

Nothing to install: this file belongs to BiFangKNT/mtga. 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/BiFangKNT/mtga/tauri/.codex/skills/pwsh/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/BiFangKNT/mtga

Made for: 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 pwsh

README.md
[![agentmods](https://agentmods.dev/badge/skills/bifangknt/mtga/pwsh/github.svg)](https://agentmods.dev/skills/bifangknt/mtga/pwsh)
Your own site
<a href="https://agentmods.dev/skills/bifangknt/mtga/pwsh"><img src="https://agentmods.dev/badge/skills/bifangknt/mtga/pwsh/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 pwsh

Your own site · 80×15
<a href="https://agentmods.dev/skills/bifangknt/mtga/pwsh"><img src="https://agentmods.dev/badge/skills/bifangknt/mtga/pwsh.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 102 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 738 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 $0.00102 $0.00738
Opus 5.5 $0.00041 $0.00295
Sonnet 5.5 $0.00020 $0.00148
Haiku 4.5 $0.00010 $0.00074

Measured 2mo ago against content hash 78eca935ebbc, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

pwsh 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.

.codex/skills/pwsh/SKILL.md · 53 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Files

What ships with it

4 files beside SKILL.md 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. 2mo ago First seen · 53 lines · 102 tokens per session scan A 78eca935ebbc

Subscribe to this mod's changes

pwsh is a skill published in the GitHub repository BiFangKNT/mtga (1,162 stars, last pushed 4mo ago), licensed AGPL-3.0. It adds 102 tokens to every session and 738 once invoked, about $0.0004 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

pwsh compared with skills from other repositories

pwsh next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
pwshBiFangKNT/mtgaSkill1.2k4mo agoAGPL-3.0A102Codex
systematic-debuggingopen-metadata/OpenMetadataSkill16kyesterdayApache-2.0A37Claude Code
log-error-digestzebbern/claude-code-guideSkill4.7k3d agoMITA71Claude Code, Codex
cwv-optimizeradobe/skillsSkill319yesterdayApache-2.0A112Claude Code
ci-fixersipyourdrink-ltd/bernsteinSkill1.2kyesterdayApache-2.0A15Claude Code, Codex
incident-response-incident-responsermyndharis/antigravity-skillsSkill1.9k23d agoMITA36Claude Code
triaging-web-analytics-supportPostHog/posthogSkill41kyesterdaynoneA151Claude Code, Codex