agentmods.dev

skills-x AGENTS.md

skills-x AGENTS.md is an instructions file for Codex, OpenCode from castle-x/skills-x. It costs 582 tokens per session, scanned A, original, MIT.

A set of repository instructions for skills-x, a Go command-line tool with an interactive text interface and bundled skill files. They describe its folders, build commands, tests, and coding conventions.

In plain words
What is it for?
Use them when developing or maintaining skills-x, including its CLI, interactive interface, reusable Go packages, embedded skills, documentation, and release builds.
Why use it?
They help contributors place reusable logic correctly, run the right build and test commands, and follow the project’s existing structure and style.

Instructions file for CodexOpenCode

not rated 18 4mo ago A scan 582 tokens original MIT
View the source file castle-x/skills-x
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 instructions/castle-x/skills-x/agents-md
Clone the repo
git clone --depth 1 https://github.com/castle-x/skills-x

Made for: Codex, 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 skills-x AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/castle-x/skills-x/agents-md.svg)](https://agentmods.dev/instructions/castle-x/skills-x/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/castle-x/skills-x/agents-md"><img src="https://agentmods.dev/badge/instructions/castle-x/skills-x/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 582 This file is loaded in full into every session.
When invoked 582 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.00582 $0.00582
Opus 5 $0.00291 $0.00291
Sonnet 5 $0.00116 $0.00116
Haiku 4.5 $0.00058 $0.00058

Measured 5d ago against content hash 74ff92e205af, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

skills-x AGENTS.md 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 5d 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.

AGENTS.md · 43 lines

How it starts

The opening of the file, as written. The whole thing — 43 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Repository Guidelines

Project Structure & Module Organization

skills-x is a Go CLI with an interactive TUI plus bundled skill assets.

  • cmd/skills-x/: CLI entrypoint, Cobra commands, TUI models/views, and i18n wiring.
  • pkg/: reusable packages (registry, discover, gitutil, skillvalidator, userregistry, etc.).
  • skills/: embedded first-party skills shipped with the binary.
  • docs/: user and contributor docs (for example docs/tui-guide.md).
  • npm/: npm wrapper and installer (npm/install.js, package metadata).
  • bin/: build outputs (generated).

Keep new logic in pkg/ when reusable, and in cmd/skills-x/command/... when command-specific.

Build, Test, and Development Commands

  • make build: syncs skills/ into embed path and builds bin/skills-x.
  • make run ARGS="list": build and run with CLI arguments.
  • make test: run all Go tests (go test -v ./...).
  • make build-local: Linux amd64 local build including local_skills/.
  • make build-all: cross-platform binaries in bin/.
  • make build-npm: cross-platform release binaries for npm in npm/bin/.
  • make deps: download and tidy Go modules.

Coding Style & Naming Conventions

  • Follow idiomatic Go; format with gofmt before committing.
  • Use short, lowercase package names (pkg/versioncheck, pkg/gitutil).
  • Keep command files action-oriented (init.go, update.go, list.go).
  • Tests live next to code as *_test.go, with table-driven style where practical.
  • For locale keys (cmd/skills-x/i18n/locales/*.yaml), use stable snake_case identifiers.

Testing Guidelines

  • Primary framework: Go testing package.
  • Run make test before opening a PR.
  • Prefer focused unit tests for parsing/validation/registry behavior, then command-level tests for CLI flows.
  • Name tests descriptively, e.g. TestRunAPIGenerate, TestValidateSkillPath.

Commit & Pull Request Guidelines

Recent history follows Conventional Commit style: feat:, fix:, docs:, chore: (example: fix: starred skills not sorted on initial load in TUI LV3).

Read the full file on GitHub · 43 lines

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. 5d ago First seen · 43 lines · 582 tokens per session scan A 74ff92e205af

Subscribe to this mod's changes

skills-x AGENTS.md is an instructions file published in the GitHub repository castle-x/skills-x (18 stars, last pushed 4mo ago), licensed MIT. It adds 582 tokens to every session, about $0.0029 per session on Opus 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 2026-08-30.

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