borgmemory: Instructions file for Codex

AGENTS.md

borgmemory AGENTS.md is an instructions file for Codex, OpenCode from villanub/borgmemory. It costs 942 tokens per session, scanned A, original, Apache-2.0.

Project instructions for Borg, a memory system that stores facts, past decisions, and procedures in a connected knowledge graph.

In plain words
What is it for?
Calling Borg before unfamiliar, debugging, architectural, documentation, or history-related tasks, and using its stored context to guide the work.
Why use it?
They help the coding agent recover relevant project history before complex work, so people do not have to repeat context or past decisions.

Instructions file for CodexOpenCode

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

This is villanub/borgmemory's own configuration. It tells Codex and OpenCode how to work on borgmemory 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 borgmemory configures →

Reuse

Borrowing it

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

Made for: Codex, OpenCode.

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Per session 942 This file is loaded in full into every session.
When invoked 942 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 $0.00942 $0.00942
Opus 5.5 $0.00377 $0.00377
Sonnet 5.5 $0.00188 $0.00188
Haiku 4.5 $0.00094 $0.00094

Measured 2mo ago against content hash 7f6647af4917, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

borgmemory 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 2mo 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 · 96 lines

How it starts

The opening of the file, as written. The whole thing — 96 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md — Project Borg

What is Borg?

Borg is a memory system connected via MCP. It maintains a knowledge graph of entities, facts, and procedures extracted from past conversations across all your AI tools. Use it to avoid re-explaining context and to make decisions informed by prior work.

When to use Borg

borg_think — Call BEFORE starting complex tasks

Call borg_think before any task that would benefit from knowing what was done previously. This compiles relevant context from the knowledge graph and returns it as structured output.

Always call borg_think when:

  • Starting work on any file or module you haven't seen in this session
  • Debugging an issue (retrieves past bugs, patterns, and related decisions)
  • Making an architecture or design decision (retrieves prior decisions and rationale)
  • Writing documentation, proposals, or RFPs (retrieves relevant facts and terminology)
  • Asked about project history, prior decisions, or "what did we decide about X"
  • Working in a namespace/project area you haven't touched recently

Example calls:

borg_think(query="APIM authentication issues", namespace="azure-msp", task_hint="debug")
borg_think(query="AMA compliance tracking architecture", namespace="azure-msp", task_hint="architecture")
borg_think(query="Project Sentinel customer targeting", namespace="azure-msp", task_hint="writing")

Task hints (use the most specific one):

  • debug — retrieves episodic memory + procedures + graph traversal
  • architecture — retrieves semantic facts + graph neighborhood
  • compliance — retrieves episode evidence + facts, excludes procedures
  • writing — retrieves semantic facts for accurate terminology
  • chat — lightweight fact lookup (default)

borg_learn — Call AFTER significant events

Call borg_learn to record decisions, discoveries, and important context that should persist across sessions. The background worker extracts entities, facts, and procedures automatically.

Always call borg_learn when:

  • A significant decision is made (technology choice, architecture change, policy)
  • A non-obvious bug is diagnosed and fixed (root cause + solution)
  • A new pattern or convention is established
  • Important context is shared that would be lost when this session ends
  • A meeting outcome, customer conversation, or requirement is discussed

Read the full file on GitHub · 96 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. 2mo ago First seen · 96 lines · 942 tokens per session scan A 7f6647af4917

Subscribe to this mod's changes

borgmemory AGENTS.md is an instructions file published in the GitHub repository villanub/borgmemory (2 stars, last pushed 10d ago), licensed Apache-2.0. It adds 942 tokens to every session, about $0.0038 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

borgmemory AGENTS.md compared with instructions from other repositories

borgmemory AGENTS.md next to 6 instructions from other repositories
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deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file274k2d agoMITA4,313Codex, OpenCode