Add DOX AGENTS.md, banner, and README updates

Introduce AGENTS.md as the DOX root contract documenting the agent-driven docs workflow, rules for reading/updating hierarchical AGENTS.md files, and guidance for maintaining local and parent DOX docs. Update README.md to include a banner, an overview of how DOX works, quick usage instructions, and credits. Add banner.jpg used by the README.

AGENTS.md

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+# DOX framework
+
+- DOX is highly performant AGENTS.md hierarchy installed here
+- Agent must follow DOX instructions across any edits
+
+## Core Contract
+
+- AGENTS.md files are binding work contracts for their subtrees
+- Work products, source materials, instructions, records, assets, and durable docs must stay understandable from the nearest applicable AGENTS.md plus every parent AGENTS.md above it
+
+## Read Before Editing
+
+1. Read the root AGENTS.md
+2. Identify every file or folder you expect to touch
+3. Walk from the repository root to each target path
+4. Read every AGENTS.md found along each route
+5. If a parent AGENTS.md lists a child AGENTS.md whose scope contains the path, read that child and continue from there
+6. Use the nearest AGENTS.md as the local contract and parent docs for repo-wide rules
+7. If docs conflict, the closer doc controls local work details, but no child doc may weaken DOX
+
+Do not rely on memory. Re-read the applicable DOX chain in the current session before editing.
+
+## Update After Editing
+
+Every meaningful change requires a DOX pass before the task is done.
+
+Update the closest owning AGENTS.md when a change affects:
+
+- purpose, scope, ownership, or responsibilities
+- durable structure, contracts, workflows, or operating rules
+- required inputs, outputs, permissions, constraints, side effects, or artifacts
+- user preferences about behavior, communication, process, organization, or quality
+- AGENTS.md creation, deletion, move, rename, or index contents
+
+Update parent docs when parent-level structure, ownership, workflow, or child index changes. Update child docs when parent changes alter local rules. Remove stale or contradictory text immediately. Small edits that do not change behavior or contracts may leave docs unchanged, but the DOX pass still must happen.
+
+## Hierarchy
+
+- Root AGENTS.md is the DOX rail: project-wide instructions, global preferences, durable workflow rules, and the top-level Child DOX Index
+- Child AGENTS.md files own domain-specific instructions and their own Child DOX Index
+- Each parent explains what its direct children cover and what stays owned by the parent
+- The closer a doc is to the work, the more specific and practical it must be
+
+## Child Doc Shape
+
+- Create a child AGENTS.md when a folder becomes a durable boundary with its own purpose, rules, responsibilities, workflow, materials, or quality standards
+- Work Guidance must reflect the current standards of the project or user instructions; if there are no specific standards or instructions yet, leave it empty
+- Verification must reflect an existing check; if no verification framework exists yet, leave it empty and update it when one exists
+
+Default section order:
+- Purpose
+- Ownership
+- Local Contracts
+- Work Guidance
+- Verification
+- Child DOX Index
+
+## Style
+
+- Keep docs concise, current, and operational
+- Document stable contracts, not diary entries
+- Put broad rules in parent docs and concrete details in child docs
+- Prefer direct bullets with explicit names
+- Do not duplicate rules across many files unless each scope needs a local version
+- Delete stale notes instead of explaining history
+- Trim obvious statements, repeated rules, misplaced detail, and warnings for risks that no longer exist
+
+## Closeout
+
+1. Re-check changed paths against the DOX chain
+2. Update nearest owning docs and any affected parents or children
+3. Refresh every affected Child DOX Index
+4. Remove stale or contradictory text
+5. Run existing verification when relevant
+6. Report any docs intentionally left unchanged and why
+
+## User Preferences
+
+When the user requests a durable behavior change, record it here or in the relevant child AGENTS.md
+
+## Child DOX Index
+
+This project is not yet indexed. Before continuing you must scan the project, build the DOX tree and replace this message with the actual index. Go deep and scan files recursively to properly evaluate complexity and create nested DOX files where needed.

README.md

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-# dox
+<p align="center">
-Documentation framework using agents.md
+  <img src="./banner.jpg" alt="DOX" width="100%">
+</p>
+
+## How DOX works
+
+DOX is a tiny AGENTS.md framework that gives an AI agent precise project context.
+
+The agent keeps a hierarchy of AGENTS.md files as the project changes:
+
+- root AGENTS.md contains project-wide instructions and the top-level index
+- child AGENTS.md files contain local instructions for specific areas
+- before any edit, the agent walks the docs tree from the root to the area it will touch
+- the relevant docs give it exact local guidelines, so it does not edit blindly
+- after meaningful changes, it updates the affected AGENTS.md files
+
+The result is simple: traverse the docs, understand the local rules, make precise edits, keep the docs current. Less guessing. Less drift. Less "why did it touch that file?"
+
+## How to use
+
+1. Copy the contents of [AGENTS.md](./AGENTS.md) into your project's AGENTS.md file.
+
+<br>
+That's it. No installation, no dependencies, no package, no runtime. DOX is just a Markdown instruction for AI agents.
+
+It works with any AI agent that supports AGENTS.md files, including Codex, Claude Code, OpenCode, and similar tools.
+
+No AGENTS.md yet? Copy the file into your project root. The agent will see these instructions and will start building the DOX tree.
+
+For an existing project, you can tell your agent: `Initialize DOX tree for this project now.` It will create all the child AGENTS.md files and indexes.
+
+## Credits
+
+<p align="center">
+  Created by <strong><a href="https://www.agent-zero.ai/">Agent Zero</a></strong><br>
+  Open-source agentic AI framework<br>
+  <a href="https://www.agent-zero.ai/">Website</a> · <a href="https://github.com/agent0ai/agent-zero">GitHub repository</a>
+</p>