skillsets: Instructions file for Codex

AGENTS.md

skillsets AGENTS.md is an instructions file for Codex, OpenCode from oghie/skillsets. It costs 694 tokens per session, scanned A, original, MIT.

A set of nine reusable instruction guides for coding agents, covering engineering and research tasks across several agent tools.

In plain words
What is it for?
It helps with tasks such as Android security research, forensic extraction, mobile-app testing, and other work covered by the bundled guides.
Why use it?
It gives an agent a defined process for identifying a task, consulting relevant evidence, and checking the result before handoff.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions Claude Code; mentions AGENTS.md; mentions Codex.

This is oghie/skillsets's own configuration. It tells Codex and OpenCode how to work on skillsets 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 skillsets configures →

Reuse

Borrowing it

Nothing to install: this file belongs to oghie/skillsets. 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/oghie/skillsets/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/oghie/skillsets

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 skillsets AGENTS.md

README.md
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Your own site
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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 skillsets AGENTS.md

Your own site · 80×15
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Per session 694 This file is loaded in full into every session.
When invoked 694 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00694 $0.00694
Opus 5.5 $0.00278 $0.00278
Sonnet 5.5 $0.00139 $0.00139
Haiku 4.5 $0.00069 $0.00069

Measured 1mo ago against content hash e5770bf6c5e4, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

skillsets 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 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.md · 20 lines

How it starts

The opening of the file, as written. The whole thing — 20 lines — stays where its author put it; the contents beside it link to each section on GitHub.

skillsets

This repository is a single plugin that bundles nine self-contained engineering and research skills compatible with Hermes, Claude Code, Codex, OpenCode, and Antigravity (Gemini). Each skill is a model-agnostic instruction set: it classifies the task, gathers evidence, applies domain references, and verifies before handoff.

Each skill auto-surfaces by its name and description. When a task matches a skill's description, read that skill's skills/<name>/SKILL.md first and follow its workflow. The detailed tasks/, references/, and scripts/ under each skill directory are the source of truth.

Hermes reads HERMES.md for project context and discovers skills through the plugin manifest at .hermes-plugin/plugin.json. OpenCode reads AGENTS.md and discovers skills through .opencode/skills/, which points back to skills/. Do not duplicate skill source material across platform-specific mirrors.

Skills

  • skills/android-offsec — Android offensive security, forensic extraction, mobile app exploitation: lock screen bypass, APK reversing, deeplink fuzzing, kernel/GPU exploit research, rogue WiFi attacks, deepfake social engineering, and chain-of-custody device investigation.
  • skills/cyber-security-operations — Cyber security operations: detection engineering and threat hunting, DFIR/forensics, incident response/SOC, vulnerability management, supply chain/DevSecOps, crypto/AI emerging threats, and offensive security tradecraft.
  • skills/academic-research-journal — Evaluate, design, draft, revise, and stress-test academic articles, literature and systematic reviews, journal submissions, reviewer responses, and source/integrity audits.
  • skills/data-architect-engineering — Design, review, migrate, optimize, secure, and operate SQL, NoSQL, vector, graph, document, time-series, search, cache, big-data, lakehouse, and warehouse systems, including DBMS internals.
  • skills/device-driver-development — Develop, review, debug, port, and engineer Linux kernel device drivers, kernel modules, device tree bindings, bus clients, DMA/IRQ/memory paths, userspace ABIs, and hardware bring-up.
  • skills/realtime-systems-coding — Build concurrent, parallel, distributed, real-time, and network-dataplane software: locks, monitors, MPI/CSP, DPDK/VPP, eBPF/XDP/AF_XDP, SR-IOV, RDMA, and RMS/EDF scheduling.
  • skills/software-architecture-engineering-uap — Design, evaluate, document, modernize, refactor, and implement software architecture and code structure: requirements, context, style selection, architecture views, clean code, NFR tactics, IAM/auth, security patterns, cost, fitness functions, and ADR/RFC work.
  • skills/tech-leadership — Advise, plan, review, and operate CTO and technology leadership work across strategy, cybersecurity, requirements, framework selection, people, delivery, risk, KPIs, roadmap, budgeting, governance, and stakeholder communication.
  • skills/uiux-frontend-engineering — Design, review, implement, and validate UI/UX and frontend experiences for web, mobile, responsive apps, design systems, accessibility, theme/token application, and XR/spatial interfaces.

Read the full file on GitHub · 20 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. 1mo ago First seen · 20 lines · 694 tokens per session scan A e5770bf6c5e4

Subscribe to this mod's changes

skillsets AGENTS.md is an instructions file published in the GitHub repository oghie/skillsets (9 stars, last pushed 21d ago), licensed MIT. It adds 694 tokens to every session, about $0.0028 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 2026-08-31.

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