openmembrane: Instructions file for Codex

AGENTS.md

openmembrane AGENTS.md is an instructions file for Codex, OpenCode from mohamadalhusseinie/openmembrane. It costs 1,237 tokens per session, scanned A, original, MIT.

Project instructions for OpenMembrane, a local tool that stores useful knowledge from AI coding sessions.

In plain words
What is it for?
They are for guiding work on OpenMembrane, including its memory extraction, filtering, storage, exporting, and MCP-server components.
Why use it?
They give coding agents the project’s purpose, architecture, data flow, and monorepo layout; a monorepo is one repository containing multiple related packages or applications.

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 mohamadalhusseinie/openmembrane's own configuration. It tells Codex and OpenCode how to work on openmembrane 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 openmembrane configures →

Reuse

Borrowing it

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

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.

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README.md
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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.

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Per session 1,237 This file is loaded in full into every session.
When invoked 1,237 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 $0.01237 $0.01237
Opus 5.5 $0.00495 $0.00495
Sonnet 5.5 $0.00247 $0.00247
Haiku 4.5 $0.00124 $0.00124

Measured 18d ago against content hash 307e1bc3fcff, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

openmembrane 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 18d 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 · 129 lines

How it starts

The opening of the file, as written. The whole thing — 129 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

Project context for AI coding tools working on the OpenMembrane codebase.

Project Overview

OpenMembrane is a local-first, private, tool-agnostic memory membrane for AI coding tools. It autonomously extracts durable project knowledge from session transcripts, filters out secrets and noise, and persists approved memories — without any manual effort from the user.

Deployment Modes

The current release ships Local Private mode as the default and GitHub Team mode for shared memory through a dedicated private repository. Self-Hosted Team and Managed Team are planned. Static exports are distinct from GitHub Team sync; use Deployment Modes as the canonical product and residency reference.

Architecture

Pipeline

session transcript
  -> secret redaction
  -> memory extraction
  -> classification
  -> policy / safety / noise filtering
  -> deduplication
  -> conflict detection
  -> action recommendation (auto_save / ask_user / reject)
  -> memory store or pending candidate queue

Monorepo Structure

packages/core/       — Domain types, extraction interface, pipeline orchestration,
                       classification, policy, deduplication, conflict detection
packages/storage/    — Local JSON persistence (memories, pending candidates, audit, diagnostics)
packages/exporters/  — Static fallback file generation (AGENTS.md, CLAUDE.md, etc.)
packages/shared/     — IDs, time helpers, generic result types
packages/protocol/   — Versioned local-daemon HTTP schemas and shared endpoint resolution
packages/client/     — Authenticated local-daemon client used by CLI and review UI
packages/adapter-*/ — Thin tool adapters (hooks, OpenCode, Claude Code, Codex, VS Code); daemon clients only
apps/mcp-server/     — MCP server (tool registration, validation, error responses)
apps/daemon/         — Per-user HTTP daemon, token authentication, project routing,
                       single-instance locking, and CLI lifecycle
apps/review-ui/      — Loopback review UI proxying project operations to the daemon
tests/               — All test files (unit and integration)

Read the full file on GitHub · 129 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. 18d ago Changed · +1 lines · +28 tokens per session 307e1bc3fcff
  2. 23d ago Changed · +6 lines · +120 tokens per session e07aa167970a
  3. 1mo ago Changed · +4 lines · +56 tokens per session d4d88be2aaec
  4. 1mo ago Changed · +9 lines · +97 tokens per session 19dd50857d02
  5. 2mo ago First seen · 109 lines · 936 tokens per session scan A 7c3e54a6c09b

Subscribe to this mod's changes

openmembrane AGENTS.md is an instructions file published in the GitHub repository mohamadalhusseinie/openmembrane (0 stars, last pushed 2d ago), licensed MIT. It adds 1,237 tokens to every session, about $0.0049 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.

Related

openmembrane AGENTS.md compared with instructions from other repositories

openmembrane AGENTS.md next to 6 instructions from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
openmembrane AGENTS.mdmohamadalhusseinie/openmembraneInstructions file02d agoMITA1,237Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA9,719GitHub Copilot
next.js AGENTS.mdvercel/next.jsInstructions file143ktodayMITA7,461Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA5,649GitHub Copilot
langchain AGENTS.mdlangchain-ai/langchainInstructions file149ktodayMITA4,680Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA3,093GitHub Copilot
vscode model-prompts.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA2,022GitHub Copilot