agent-prime: Instructions file for Codex

AGENTS.md

agent-prime AGENTS.md is an instructions file for Codex, OpenCode from Avyayalaya/agent-prime. It costs 3,895 tokens per session, scanned A, original, MIT.

A set of instructions for Agent Prime, an open-source system that coordinates specialized AI agents using Markdown files. It explains the system’s agents, skills, guardrails, memory, and workflows.

In plain words
What is it for?
Use it when an AI assistant needs to understand Agent Prime’s architecture, available agents, project state files, and operating procedures.
Why use it?
It gives AI tools the shared rules and structure they need to work consistently inside an Agent Prime repository.

Instructions file for CodexOpenCode

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

This is Avyayalaya/agent-prime's own configuration. It tells Codex and OpenCode how to work on agent-prime 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 agent-prime configures →

Reuse

Borrowing it

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

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 agent-prime 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 agent-prime AGENTS.md

Your own site · 80×15
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Per session 3,895 This file is loaded in full into every session.
When invoked 3,895 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 $0.03895 $0.03895
Opus 5.5 $0.01558 $0.01558
Sonnet 5.5 $0.00779 $0.00779
Haiku 4.5 $0.00390 $0.00390

Measured 1mo ago against content hash 2af47bd5bd75, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

agent-prime 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 · 244 lines

How it starts

The opening of the file, as written. The whole thing — 244 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md — Agent Prime

Machine-readable system manifest. Primary audience: AI orchestrators deciding whether to route work here.

Overview

Agent Prime is an open-source AI operating system built entirely from markdown files. It provides 13 specialized agents + a runtime-portable 5-agent quality gate (Agent Council), 12 domain skills with typed schemas, persistent memory with recursive self-improvement, 8 structured guardrails, and 4 declarative workflows. Zero dependencies — no database, no runtime, no package manager. Clone the repo and point any LLM at it. The system gets permanently smarter with every correction via an append-only learnings registry that propagates constraints to all agents.

Repository: https://github.com/avyayalaya/agent-prime Instruction files: CLAUDE.md (Claude Code), .github/copilot-instructions.md (GitHub Copilot), both kept in sync. Architecture: Markdown-only, 7 layers, cross-LLM compatible (Claude Code, GitHub Copilot, Gemini CLI).

Capabilities

  • 13 specialized agents with typed inputs, outputs, and Context Verification Gates
  • 12 PM-domain skills with codified methodologies, failure modes, and benchmark scores
  • Recursive learning loop: Every user correction becomes a permanent rule in shared/learnings.md, applied to all agents in all future sessions
  • 8 structured guardrails enforced via system rules in CLAUDE.md (including a runtime-portable 5-agent quality gate)
  • 4 declarative workflows composing agents into end-to-end pipelines
  • 49 system rules governing context verification, voice, NDA compliance, change propagation, and quality
  • 100+ accumulated learnings across voice, content, process, quality, build, and agent design categories
  • Session resilience: Write-ahead journaling, crash recovery, session audit, learning extraction
  • Cross-LLM compatibility: Works on Claude Code, GitHub Copilot Chat, Gemini CLI without modification
  • Onboarding wizard: Interactive setup in under 10 minutes via the Onboarder agent
  • Zero dependencies: No npm, no pip, no Docker. Python 3.10+ for optional scripts only.

Read the full file on GitHub · 244 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 · 244 lines · 3,895 tokens per session scan A 2af47bd5bd75

Subscribe to this mod's changes

agent-prime AGENTS.md is an instructions file published in the GitHub repository Avyayalaya/agent-prime (9 stars, last pushed 5mo ago), licensed MIT. It adds 3,895 tokens to every session, about $0.0156 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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