index

Documentation for defining agents in the Synapse PHP library. An agent is the component that connects tools, memory, prompts, and output rules into one runnable unit.

In plain words
What is it for?
Use it to create agent classes, choose a prompt template, connect an AI service, and place agents in a Laravel application's App/Agents directory.
Why use it?
It explains the required class structure and connection settings, helping prevent agents from being created without the components they need.

Agent

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 agents/usethefork/synapse/index
Clone the repo
git clone --depth 1 https://github.com/UseTheFork/synapse
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 353 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 $0.00000 $0.00353
Opus 5 $0.00000 $0.00177
Sonnet 5 $0.00000 $0.00071
Haiku 4.5 $0.00000 $0.00035

Measured yesterday against content hash 30f30bcbc382, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

index 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 yesterday.

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.

docs/agents/index.md · 38 lines

What it actually says

Agents

Agents are the core of the Synapse library. Every component, such as Tools, Memory, or OutputSchema, must be attached to an agent.

Getting Started

It's recommended to define a standard location for your Agents. In Laravel, a good practice is to place them inside the App/Agents directory.

Create a new class that extends the abstract Agent class.

You will need to define a few methods, interfaces, and variables:

  • $promptView: The Blade view that the agent uses as its prompt template. See the Prompts section for more details.
  • HasIntegration: This interface tells the agent to look for the resolveIntegration method when booting. See the Integrations section for more details.
  • resolveIntegration: The API connection the agent should use when invoked. See the Integrations section for more details.

[!TIP] If you set a default integration in your config file, you do not need to add the resolveIntegration method or the HasIntegration interface to your agent.

<?php

use UseTheFork\Synapse\Agent;
use UseTheFork\Synapse\Contracts\Integration;
use UseTheFork\Synapse\Integrations\OpenAIIntegration;
use UseTheFork\Synapse\Contracts\Agent\HasIntegration;

class SimpleAgent extends Agent implements HasIntegration
{
    protected string $promptView = 'synapse::Prompts.SimplePrompt';
    
    public function resolveIntegration(): Integration
    {
        return new OpenAIIntegration;
    }
}
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. yesterday First seen · 38 lines · 0 tokens per session scan A 30f30bcbc382

Subscribe to this mod's changes

index is an agent published in the GitHub repository UseTheFork/synapse (50 stars, last pushed 1y ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 353 tokens. 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.

Related

Other agents, from other repositories