agentic-rag: Instructions file for Codex

AGENTS.md

agentic-rag AGENTS.md is an instructions file for Codex, OpenCode from phense/agentic-rag. It costs 1,168 tokens per session, scanned A, original, MIT.

Repository instructions for an agent knowledge system that stores shared memories in PostgreSQL with pgvector, an extension for searching text by meaning.

In plain words
What is it for?
Use them when changing memory storage, Claude or Codex integrations, access levels, upgrades, GitHub issues, pull requests, or code review.
Why use it?
They preserve one shared store, controlled write access, read permissions, compatibility with existing installations, and protection of secret values.

Instructions file for CodexOpenCode

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

This is phense/agentic-rag's own configuration. It tells Codex and OpenCode how to work on agentic-rag 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 agentic-rag configures →

Reuse

Borrowing it

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

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 agentic-rag AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/phense/agentic-rag/agents-md/github.svg)](https://agentmods.dev/instructions/phense/agentic-rag/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/phense/agentic-rag/agents-md"><img src="https://agentmods.dev/badge/instructions/phense/agentic-rag/agents-md/github.svg" alt="Measured on agentmods" height="20"></a>

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 agentic-rag AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/phense/agentic-rag/agents-md"><img src="https://agentmods.dev/badge/instructions/phense/agentic-rag/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,168 This file is loaded in full into every session.
When invoked 1,168 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 $0.01168 $0.01168
Opus 5.5 $0.00467 $0.00467
Sonnet 5.5 $0.00234 $0.00234
Haiku 4.5 $0.00117 $0.00117

Measured 14d ago against content hash f923fde0f260, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

agentic-rag 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 14d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

AGENTS.md · 85 lines

How it starts

The opening of the file, as written. The whole thing — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Shared knowledge engine

This repository is the canonical memory and knowledge engine shared by Claude Code and Codex. Read README.md and the relevant document under docs/ before changing behavior.

Invariants

  • Preserve one PostgreSQL + pgvector store for all clients. Never fork data by agent provider.
  • All writes pass through the audited gateway (rag save or memory_save); never hand-write rows, embeddings, deduplication state, or audit records.
  • Keep both MCP privilege levels: agentic-rag for an authorized main session and agentic-rag-ro for read-only/subagent use.
  • Claude and Codex adapters must remain additive and idempotent. Do not remove or overwrite another client's settings, hooks, or MCP configuration.
  • Never expose database credentials or other secret values in logs, tests, documentation, or commits.

Production compatibility and upgrades

agentic-rag is an actively used production system with multiple users and knowledge domains. Every change must remain compatible with the running installation or provide a real, tested upgrade path from that installation. A fresh-install test alone is insufficient.

  • Before changing behavior, identify the supported source version and affected schema, stored data, configuration, CLI/MCP contracts, hooks, jobs, and client integrations. Preserve existing users, domains, access boundaries, pins, knowledge, checkpoints, and audit history.
  • Prefer additive, backward-compatible changes. Account for active sessions, concurrent clients, queued work, and old/new client versions during an upgrade; document any required restart or maintenance window. Never silently reset, reinitialize, or discard production state.
  • If compatibility cannot be preserved, deliver the upgrade path with the change: supported source/target versions, preflight checks, verified backup, exact migration and deployment order, safe retry/resume after interruption, post-upgrade checks, and rollback or tested recovery with explicit limits on downgrade and data loss. Preserve the audited write boundary.
  • Verify affected existing-installation workflows. Rehearse migrations and recovery on an isolated representative multi-user, multi-domain installation before production rollout. Record commands, results, and remaining risks in the PR; a written plan without verification is insufficient.
  • Do not merge a change that lacks compatibility evidence or its required verified upgrade path. Merge approval does not itself authorize production deployment, migration, or service interruption.

Read the full file on GitHub · 85 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. 14d ago Changed · +19 lines · +268 tokens per session f923fde0f260
  2. 15d ago First seen · 66 lines · 900 tokens per session scan A 31f3cb0e4586

Subscribe to this mod's changes

agentic-rag AGENTS.md is an instructions file published in the GitHub repository phense/agentic-rag (0 stars, last pushed 14d ago), licensed MIT. It adds 1,168 tokens to every session, about $0.0047 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 2026-10-04.

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