build-like-amazon-agent-skills: Instructions file for Codex

AGENTS.md

build-like-amazon-agent-skills AGENTS.md is an instructions file for Codex, OpenCode from robisson/build-like-amazon-agent-skills. It costs 6,207 tokens per session, scanned A, original, MIT.

A set of instructions for AI agents working with a library of reusable skills. It explains how to find the right skill, load it, and follow its required workflow.

In plain words
What is it for?
Use it to route requests to skills, handle slash commands, and apply the skill library's operating rules.
Why use it?
It reduces guesswork when several skills or workflows might apply to a request. It also defines what the agent should do when the correct path is unclear.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions subagents.

This is robisson/build-like-amazon-agent-skills's own configuration. It tells Codex and OpenCode how to work on build-like-amazon-agent-skills 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 build-like-amazon-agent-skills configures →

Reuse

Borrowing it

Nothing to install: this file belongs to robisson/build-like-amazon-agent-skills. 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/robisson/build-like-amazon-agent-skills/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/robisson/build-like-amazon-agent-skills

Made for: Codex, OpenCode.

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Per session 6,207 This file is loaded in full into every session.
When invoked 6,207 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 $0.06207 $0.06207
Opus 5.5 $0.02483 $0.02483
Sonnet 5.5 $0.01241 $0.01241
Haiku 4.5 $0.00621 $0.00621

Measured 25d ago against content hash f6d8c167fbe9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

build-like-amazon-agent-skills 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 25d 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 · 357 lines

How it starts

The opening of the file, as written. The whole thing — 357 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Instructions for AI Agents

This document defines how AI agents should discover, load, and execute skills from this repository. Follow these instructions precisely — they are the operating contract between this skill library and any agent that uses it.

Discovering Skills

Skills are located in the skills/ directory. Each skill is a standalone markdown file with YAML frontmatter containing metadata.

How to Find the Right Skill

  1. Check the command: If the user invokes a slash command (e.g., /wb, /design, /deploy), load the corresponding skill file directly.
  2. Use the meta-skill when no command is clear: If there is no slash command and the right workflow is unclear, read skills/using-amazon-skills/SKILL.md first. Use it to route the request to the correct lifecycle phase and skill chain.
  3. Read the frontmatter: every skills/*/SKILL.md opens with a YAML block carrying exactly three keys — name, description and leadership_principles (verified on all 28 skills). There is no triggers field: judge fit from description, which states what the skill is for and when it applies.
  4. Check the phase: skills carry no phase field either. The lifecycle grouping lives outside the files — in the skill catalogue in README.md (All 28 Skills), grouped by phase, and in the routing flow of skills/using-amazon-skills/SKILL.md. Use those to browse by phase.
  5. When in doubt, ask: If multiple skills could apply after consulting the meta-skill, ask the user which workflow they want to follow rather than guessing.

Skill Loading Protocol

When a skill is activated:

  1. Read the full skill file
  2. Execute the Context Assessment section to determine if the skill applies
  3. If it applies, follow the Process section step by step
  4. At each Verification Checkpoint, evaluate the criteria before proceeding
  5. If a blocking checkpoint fails, stop and surface the issue to the user
  6. When complete, confirm all verification checkpoints have been met

Read the full file on GitHub · 357 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. 25d ago Changed · +8 tokens per session f6d8c167fbe9
  2. 1mo ago Changed · +52 lines · +2,427 tokens per session 2c17c06347ef
  3. 1mo ago First seen · 305 lines · 3,772 tokens per session scan A 8d1aa22822d1

Subscribe to this mod's changes

build-like-amazon-agent-skills AGENTS.md is an instructions file published in the GitHub repository robisson/build-like-amazon-agent-skills (16 stars, last pushed 20d ago), licensed MIT. It adds 6,207 tokens to every session, about $0.0248 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 2026-08-30.

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