Memory-Palace: Instructions file for Codex

AGENTS.md

Memory-Palace AGENTS.md is an instructions file for Codex, OpenCode from AGI-is-going-to-arrive/Memory-Palace. It costs 303 tokens per session, scanned A, original, MIT.

A project instruction file for Memory Palace, a system for storing durable information for AI agents through a memory service.

In plain words
What is it for?
It is for searching and reading memories, applying guarded changes, and running the project's backend, frontend, skill, and MCP checks.
Why use it?
It defines the read-before-write workflow and safeguards that prevent accidental creation, updates, or deletion of the wrong memory.

Instructions file for CodexOpenCode

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

This is AGI-is-going-to-arrive/Memory-Palace's own configuration. It tells Codex and OpenCode how to work on Memory-Palace 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 Memory-Palace configures →

Reuse

Borrowing it

Nothing to install: this file belongs to AGI-is-going-to-arrive/Memory-Palace. 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/AGI-is-going-to-arrive/Memory-Palace/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/AGI-is-going-to-arrive/Memory-Palace

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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Your own site · 80×15
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Per session 303 This file is loaded in full into every session.
When invoked 303 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 $0.00303 $0.00303
Opus 5 $0.00151 $0.00151
Sonnet 5 $0.00061 $0.00061
Haiku 4.5 $0.00030 $0.00030

Measured 9d ago against content hash dbbfc0e4061b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

Memory-Palace 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 · 30 lines

What it actually says

Memory Palace Agent Rules

These rules apply to AI coding agents working inside this repository.

Read First

  • README.md
  • docs/GETTING_STARTED.md
  • docs/skills/memory-palace/SKILL.md when the task is about durable memory workflow or skill behavior

Durable Memory Workflow

  • Start with read_memory("system://boot") before the first real Memory Palace operation in a session.
  • If the target URI is unknown, use search_memory(..., include_session=true) before guessing a path.
  • Before create_memory, update_memory, delete_memory, or add_alias, read the target or the best matching candidate first.
  • If guard_action is NOOP, stop the write, inspect guard_target_uri / guard_target_id, read the suggested target, then decide whether anything should change.

Code and Validation

  • Backend: cd backend && .venv/bin/pytest tests -q
  • Frontend: cd frontend && npm test && npm run build
  • Skill smoke: python scripts/evaluate_memory_palace_skill.py
  • Live MCP e2e: cd backend && python ../scripts/evaluate_memory_palace_mcp_e2e.py

MCP Binding

  • Native Windows: backend/mcp_wrapper.py
  • macOS / Linux / Git Bash / WSL: scripts/run_memory_palace_mcp_stdio.sh
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 First seen · 30 lines · 303 tokens per session scan A dbbfc0e4061b

Subscribe to this mod's changes

Memory-Palace AGENTS.md is an instructions file published in the GitHub repository AGI-is-going-to-arrive/Memory-Palace (312 stars, last pushed 3mo ago), licensed MIT. It adds 303 tokens to every session, about $0.0015 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 2026-08-30.

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