dev-runtime-skill: Skill for Codex

.agents/skills/dev-runtime-skill-architecture-insight/SKILL.md

dev-runtime-skill-architecture-insight is a skill for Codex from xinghang-ee-cs/dev-runtime-skill. It costs 40 tokens per session (548 once invoked), scanned A, original, AGPL-3.0.

A guide to the architecture and file locations of the `dev-runtime-skill` project. It covers its rules for governance, version synchronization, release workflows, validation, and documentation.

In plain words
What is it for?
It is for maintaining the `dev-runtime-skill` project and finding the right procedures before changing its runtime rules or release tooling.
Why use it?
It helps prevent changes from being made in the wrong files or without following the project's established structure.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: installed under .agents/ (shared by several agents).

This is xinghang-ee-cs/dev-runtime-skill's own configuration. It tells Codex how to work on dev-runtime-skill 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 dev-runtime-skill configures →

Reuse

Borrowing it

Nothing to install: this file belongs to xinghang-ee-cs/dev-runtime-skill. 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/xinghang-ee-cs/dev-runtime-skill/main/.agents/skills/dev-runtime-skill-architecture-insight/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/xinghang-ee-cs/dev-runtime-skill

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 dev-runtime-skill-architecture-insight

README.md
[![agentmods](https://agentmods.dev/badge/skills/xinghang-ee-cs/dev-runtime-skill/dev-runtime-skill-architecture-insight/github.svg)](https://agentmods.dev/skills/xinghang-ee-cs/dev-runtime-skill/dev-runtime-skill-architecture-insight)
Your own site
<a href="https://agentmods.dev/skills/xinghang-ee-cs/dev-runtime-skill/dev-runtime-skill-architecture-insight"><img src="https://agentmods.dev/badge/skills/xinghang-ee-cs/dev-runtime-skill/dev-runtime-skill-architecture-insight/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 dev-runtime-skill-architecture-insight

Your own site · 80×15
<a href="https://agentmods.dev/skills/xinghang-ee-cs/dev-runtime-skill/dev-runtime-skill-architecture-insight"><img src="https://agentmods.dev/badge/skills/xinghang-ee-cs/dev-runtime-skill/dev-runtime-skill-architecture-insight.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 548 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 $0.00040 $0.00548
Opus 5.5 $0.00016 $0.00219
Sonnet 5.5 $0.00008 $0.00110
Haiku 4.5 $0.00004 $0.00055

Measured 1mo ago against content hash e04793670ef7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

dev-runtime-skill-architecture-insight 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.

.agents/skills/dev-runtime-skill-architecture-insight/SKILL.md · 49 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

2 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. 1mo ago First seen · 49 lines · 40 tokens per session scan A e04793670ef7

Subscribe to this mod's changes

dev-runtime-skill-architecture-insight is a skill published in the GitHub repository xinghang-ee-cs/dev-runtime-skill (11 stars, last pushed 4d ago), licensed AGPL-3.0. It adds 40 tokens to every session and 548 once invoked, about $0.0002 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 2026-09-21.

Related

dev-runtime-skill-architecture-insight compared with skills from other repositories

dev-runtime-skill-architecture-insight next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
dev-runtime-skill-architecture-insightxinghang-ee-cs/dev-runtime-skillSkill114d agoAGPL-3.0A40Codex
imagegenopenai/codexSkill133kyesterdayApache-2.0A113Codex
playwright-climicrosoft/playwrightSkill99kyesterdayApache-2.0A19Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginnersSkill79k4d agoMITA200Claude Code, Codex
systematic-debuggingobra/superpowersSkill314k3d agoMITA21Claude Code
next-cache-components-adoptionvercel/next.jsSkill143kyesterdayMITA95Claude Code
next-partial-prefetching-adoptionvercel/next.jsSkill143kyesterdayMITA103Claude Code