ai-mate AGENTS.md

ai-mate AGENTS.md is an instructions file for Codex, OpenCode from symfony/ai-mate. It costs 2,008 tokens per session, scanned B, original, MIT.

A Symfony command-line assistant that discovers project tools from PHP methods and lets coding agents or developers run them.

In plain words
What is it for?
Use it to expose Symfony project-aware tools, resources, and resource templates through the Mate command-line program.
Why use it?
It turns annotated PHP methods into discoverable commands with structured input descriptions, without requiring the Model Context Protocol.

Instructions file for CodexOpenCode

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add instructions/symfony/ai-mate/agents-md
Clone the repo
git clone --depth 1 https://github.com/symfony/ai-mate

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.

agentmods badge for ai-mate AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/symfony/ai-mate/agents-md.svg)](https://agentmods.dev/instructions/symfony/ai-mate/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/symfony/ai-mate/agents-md"><img src="https://agentmods.dev/badge/instructions/symfony/ai-mate/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 2,008 This file is loaded in full into every session.
When invoked 2,008 The same file — it is already loaded in full.
Security scan B 1 finding. Scan, not verified.
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 $0.02008 $0.02008
Opus 5 $0.01004 $0.01004
Sonnet 5 $0.00402 $0.00402
Haiku 4.5 $0.00201 $0.00201

Measured 4d ago against content hash 267038f39e28, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

ai-mate AGENTS.md scanned grade B with 1 finding 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 4d 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.

Unrestricted tool accessmediumExcessive agency

A wildcard tool grant or "run any command" leaves no least-privilege boundary at all.

- `src/Command/`: CLI commands (init, discover, clear-cache, debug:*, tools:*, resources:read)
AGENTS.md · 183 lines

How it starts

The opening of the file, as written. The whole thing — 183 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

AI agent guidance for the Mate component.

Component Overview

Standalone command-line assistant (vendor/bin/mate) that exposes project-aware development tools to coding agents and developers. Tools are plain PHP methods annotated with the native #[MateTool] attribute (resources/resource templates use #[MateResource] / #[MateResourceTemplate]); Mate discovers them by reflection and runs them from the CLI. Does not use MCP and does not integrate with the AI Bundle.

Architecture

Core Classes

  • App: Console application builder
  • ContainerFactory: DI container management with extension discovery
  • ComposerExtensionDiscovery: Discovers extensions via extra.ai-mate in composer.json
  • ReflectionDiscoverer: Scans directories for #[MateTool]/#[MateResource]/#[MateResourceTemplate] methods
  • SchemaGenerator / DocBlockParser: Build a JSON input schema from a method signature + @param PHPDoc
  • CapabilityRegistry: Feature-filtered lookup of discovered tools/resources
  • ToolInvoker / ResourceReader: Resolve the handler from the DI container and invoke it

Attributes

  • Symfony\AI\Mate\Attribute\MateTool: marks a method as a CLI tool (params name, title, description)
  • Symfony\AI\Mate\Attribute\MateResource: marks a method as a static resource
  • Symfony\AI\Mate\Attribute\MateResourceTemplate: marks a method as a templated resource

Key Directories

  • src/Command/: CLI commands (init, discover, clear-cache, debug:, tools:, resources:read)
  • src/Container/: DI container management
  • src/Discovery/: Reflection-based discovery + schema generation
  • src/Invocation/: Tool/resource invocation and argument casting
  • src/Capability/: Built-in tools
  • src/Bridge/: Embedded bridge packages (Symfony, Monolog)

Bridges

  • Symfony Bridge (src/Bridge/Symfony/): Container introspection and profiler access
  • Monolog Bridge (src/Bridge/Monolog/): Log search and analysis

Essential Commands

Read the full file on GitHub · 183 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. 4d ago First seen · 183 lines · 2,008 tokens per session scan B 267038f39e28

Subscribe to this mod's changes

ai-mate AGENTS.md is an instructions file published in the GitHub repository symfony/ai-mate (33 stars, last pushed 4d ago), licensed MIT. It adds 2,008 tokens to every session, about $0.0100 per session on Opus 5. A static security scan graded it B with 1 finding (unrestricted tool access). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.