ai-assistant-instructions: Instructions file for Codex

AGENTS.md

ai-assistant-instructions AGENTS.md is an instructions file for Codex, OpenCode from dryvist/ai-assistant-instructions. It costs 904 tokens per session, scanned A, original, Apache-2.0.

Repository instructions for an AI-agent configuration project. They define how agents should choose tools, begin changes, investigate existing solutions, test their work, and follow the project's Git workflow.

In plain words
What is it for?
Use them when modifying this project, especially to refresh the repository, inspect existing options, research established approaches, run the appropriate checks, and prepare changes for review.
Why use it?
They set consistent expectations for making focused, evidence-based changes and reporting what was verified.

Instructions file for CodexOpenCode

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

This is dryvist/ai-assistant-instructions's own configuration. It tells Codex and OpenCode how to work on ai-assistant-instructions 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 ai-assistant-instructions configures →

Reuse

Borrowing it

Nothing to install: this file belongs to dryvist/ai-assistant-instructions. 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/dryvist/ai-assistant-instructions/develop/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/dryvist/ai-assistant-instructions

Made for: Codex, OpenCode.

Wrote this? Show the measurements

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Per session 904 This file is loaded in full into every session.
When invoked 904 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 $0.00904 $0.00904
Opus 5.5 $0.00362 $0.00362
Sonnet 5.5 $0.00181 $0.00181
Haiku 4.5 $0.00090 $0.00090

Measured 9d ago against content hash b883f3b98802, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ai-assistant-instructions 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 9d 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 · 55 lines

How it starts

The opening of the file, as written. The whole thing — 55 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AI Agents Configuration

Coding behavior

Identity and posture: soul.md. Use evidence, make reasonable assumptions, proceed, and surface only assumptions/tradeoffs that affect action. Ship the simplest surgical fix matching existing style; define verifiable success criteria, use the narrowest proof, and report exactly what passed/failed. Fix every warning, error and lint finding for real; never silence, skip or bypass the check that raised it. Deep design/review/refactor work: karpathy-guidelines skill (andrej-karpathy-skills).

Tool choice — no new custom scripts (custom code is permanent maintenance). Before writing or extending one, stop at the first rung that works: (1) existing flags, config, or an installed skill, command, plugin or MCP server; (2) a native feature of the platform or tool; (3) a maintained third-party tool; (4) community content: Ansible collections, Terraform modules, Renovate presets, pre-commit hooks, Actions; (5) prior art: /github-code-search (thousands of hits means idiomatic, three means a mistake), context7, package/Terraform/Hugging Face registries; (6) a formal gap: a standardized public repo that fits our use case. Only then write code, naming why each rung failed. Delete or replace an existing script before editing it.

Git workflow: never edit on the default branch — /refresh-repo, then a new worktree. develop default branch → git-flow: PRs target develop (squash-merge), develop → main by merge commit only. Otherwise trunk flow. Always atomic commits, one fix/feature/section per commit. Load the on-demand rule for the activity — rule-tiers.md is the index. Behavior changes to instructions are feat:/fix:, never docs: (docs commits never release).

Knowledge base: documentation follows Open Knowledge Format — search before editing, capture new durable knowledge after a change.

Where things get written (routing law, no exceptions)

Read the full file on GitHub · 55 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. 9d ago Changed · -3 lines · +52 tokens per session b883f3b98802
  2. 14d ago Changed · +9 lines · +138 tokens per session 6bc185b1ed73
  3. 15d ago Changed · +8 tokens per session dfe1a7c6b3f1
  4. 17d ago Changed · -3 tokens per session 8e3b55647c88
  5. 19d ago Changed · +2 lines · +41 tokens per session 73d43c81cde2
  6. 23d ago Changed · +2 lines · +49 tokens per session 1183e8db353a
  7. 24d ago Changed · +2 lines · +47 tokens per session e29bc122b62c
  8. 1mo ago Changed · +3 tokens per session 7180a5948ec3
  9. 1mo ago Changed · -46 lines · -424 tokens per session 24f04e946cc0
  10. 1mo ago First seen · 89 lines · 993 tokens per session scan A a01f59e3eb82

Subscribe to this mod's changes

ai-assistant-instructions AGENTS.md is an instructions file published in the GitHub repository dryvist/ai-assistant-instructions (9 stars, last pushed today), licensed Apache-2.0. It adds 904 tokens to every session, about $0.0036 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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