sample-pellier-agentic-search-apg: Instructions file for Codex

AGENTS.md

sample-pellier-agentic-search-apg AGENTS.md is an instructions file for Codex, OpenCode from aws-samples/sample-pellier-agentic-search-apg. It costs 249 tokens per session, scanned A, original, MIT.

Repository instructions for a bounded Pellier workshop exercise. They tell a coding agent to inspect the code, explain its inferred contract, make only marked changes, avoid finished solutions, and stop when the task exceeds the exercise limits.

In plain words
What is it for?
Use them when guiding participants through the workshop's coding tasks and checking only the commands allowed by its lab guide.
Why use it?
They keep the exercise focused and prevent the agent from revealing solutions or changing unrelated files.

Instructions file for CodexOpenCode ✓ vendor

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

This is aws-samples/sample-pellier-agentic-search-apg's own configuration. It tells Codex and OpenCode how to work on sample-pellier-agentic-search-apg 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 sample-pellier-agentic-search-apg configures →

About the project

aws-samples/sample-pellier-agentic-search-apg is an educational reference application for an AI shopping concierge backed by Amazon Aurora PostgreSQL and Amazon Bedrock AgentCore. Its fictional retail storefront turns natural-language shopping requests into catalog searches, specialist-agent decisions, tool calls, and recorded business state, while a companion engineering interface exposes how those operations work. The catalogue add-ons support using or understanding this reference application.

aws-samples/sample-pellier-agentic-search-apg · 11 stars · on GitHub

Reuse

Borrowing it

Nothing to install: this file belongs to aws-samples/sample-pellier-agentic-search-apg. 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/aws-samples/sample-pellier-agentic-search-apg/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/aws-samples/sample-pellier-agentic-search-apg

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 sample-pellier-agentic-search-apg AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/aws-samples/sample-pellier-agentic-search-apg/agents-md.svg)](https://agentmods.dev/instructions/aws-samples/sample-pellier-agentic-search-apg/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/aws-samples/sample-pellier-agentic-search-apg/agents-md"><img src="https://agentmods.dev/badge/instructions/aws-samples/sample-pellier-agentic-search-apg/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 249 This file is loaded in full into every session.
When invoked 249 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 $0.00249 $0.00249
Opus 5 $0.00125 $0.00125
Sonnet 5 $0.00050 $0.00050
Haiku 4.5 $0.00025 $0.00025

Measured 2d ago against content hash 73258fb6ebec, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

sample-pellier-agentic-search-apg 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 2d 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 · 30 lines

What it actually says

Pellier workshop guardrails for Codex

You are assisting a workshop participant with a bounded coding exercise. Help the participant reason from the repository rather than revealing or reproducing the finished solution.

Working approach

  • Inspect the relevant source and surrounding patterns before editing.
  • Infer the contract from the code, then briefly explain that contract to the participant before making a change.
  • Respect workshop marker comments and make the smallest change contained by those markers.
  • Review the resulting diff and use only the verification commands supplied by the lab guide.
  • Stop and return control to the participant if the task is blocked or the requested change would exceed the exercise boundary.

Guardrails

  • Do not read, copy, or derive an answer from anything under solutions/ unless the participant explicitly chooses the documented fallback path.
  • Do not modify unrelated files, tests, dependencies, configuration, or infrastructure.
  • Do not install packages or run Git commands as part of an exercise.
  • Do not turn a one-time exercise solution into reusable automation.

Reusable Codex workflows belong under .Codex/skills/ and are optional follow-up material, not part of the required participant exercise.

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. 2d ago First seen · 30 lines · 249 tokens per session scan A 73258fb6ebec

Subscribe to this mod's changes

sample-pellier-agentic-search-apg AGENTS.md is an instructions file published in the GitHub repository aws-samples/sample-pellier-agentic-search-apg (11 stars, last pushed today), licensed MIT. It adds 249 tokens to every session, about $0.0012 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 2026-09-05.

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