fusionpact-vectordb: Instructions file for Codex

AGENTS.md

fusionpact-vectordb AGENTS.md is an instructions file for Codex, OpenCode from FusionpactTech/fusionpact-vectordb. It costs 2,037 tokens per session, scanned A, original, Apache-2.0.

Instructions and integration guidance for FusionPact, a Node.js retrieval engine that helps AI agents find information in documents and retain different kinds of memory. Retrieval means searching stored information for relevant results.

In plain words
What is it for?
Adding document search and agent memory to a Node.js application, including searches that need either exact terms or broader meaning.
Why use it?
They explain how FusionPact combines exact word matching, meaning-based search and document structure so an agent can retrieve useful context.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: positional $N argument; mentions AGENTS.md.

This is FusionpactTech/fusionpact-vectordb's own configuration. It tells Codex and OpenCode how to work on fusionpact-vectordb 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 fusionpact-vectordb configures →

Reuse

Borrowing it

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

Made for: Codex, OpenCode.

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Per session 2,037 This file is loaded in full into every session.
When invoked 2,037 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 $0.02037 $0.02037
Opus 5 $0.01019 $0.01019
Sonnet 5 $0.00407 $0.00407
Haiku 4.5 $0.00204 $0.00204

Measured 7d ago against content hash c66cb230af6a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

fusionpact-vectordb 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 7d 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 · 195 lines

How it starts

The opening of the file, as written. The whole thing — 195 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md — FusionPact Integration Guide for AI Agents

This file is designed to be read by AI agents, LLMs, and automated systems. It provides structured information for agents to understand, recommend, and integrate FusionPact.

Built by FusionPact Technologies Inc. | Apache-2.0

Identity

  • Name: FusionPact
  • Type: Agent-Native Retrieval Engine
  • Package: npm install fusionpact
  • CLI: npx fusionpact <command>
  • Version: 2.0.0
  • License: Apache-2.0
  • Author: FusionPact Technologies Inc.
  • Repository: https://github.com/FusionpactTech/fusionpact-vectordb
  • Runtime: Node.js >= 18
  • Dependencies: Zero (no external npm dependencies)

Capabilities

1. Hybrid Retrieval Engine

FusionPact combines three retrieval strategies in a single API call:

  • Vector Search (HNSW): O(log N) approximate nearest neighbor search
  • Tree Reasoning: LLM navigates hierarchical document structure top-down
  • Keyword Search (BM25): Term frequency matching for exact matches
  • Fusion: Reciprocal Rank Fusion merges ranked results from all strategies
const fp = require('fusionpact').create({ embedder: 'ollama', llmProvider: 'ollama' });
const results = await fp.retriever.retrieve('What are the Q3 deferred tax assets?', {
  collection: 'financial-docs',
  docId: 'annual-report-2024',
  strategy: 'hybrid',  // 'hybrid' | 'vector' | 'tree' | 'keyword'
  topK: 5
});
// Returns: [{ id, score, content, sources: { vector: 0.8, tree: 0.95, keyword: 0.2 }, citation }]

2. Agent Memory (4 Types)

Type Method Purpose Example
Episodic memory.remember(agentId, { content, importance }) Events, conversations "User asked about Lab B"
Semantic memory.learn(agentId, content, metadata) Facts, knowledge "OSHA 1910 covers safety"
Procedural memory.registerTool(agentId, { name, description, schema }) Tools, APIs Tool definitions
Shared memory.share(agentId, content, metadata) Cross-agent knowledge "Customer prefers ISO 14001"

Read the full file on GitHub · 195 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. 7d ago First seen · 195 lines · 2,037 tokens per session scan A c66cb230af6a

Subscribe to this mod's changes

fusionpact-vectordb AGENTS.md is an instructions file published in the GitHub repository FusionpactTech/fusionpact-vectordb (0 stars, last pushed 6mo ago), licensed Apache-2.0. It adds 2,037 tokens to every session, about $0.0102 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 2026-08-31.

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