backend-dev

backend-dev is an agent for Claude Code from thomascasali/claude-kb-workflow. It costs 45 tokens per session (2,892 once invoked), scanned A, original, no licence file.

A backend-development agent for Laravel with PHP and Node.js with Express. It covers APIs, data models, database migrations, services, queues, authentication, and related backend components.

In plain words
What is it for?
Building Laravel or Express backends, including models and relationships, authentication, middleware, migrations, file uploads, logging, PDF generation, payments, and MongoDB access.
Why use it?
It gives backend work a defined specialist covering two common web stacks and their associated tools.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

Good fit Building Laravel or Express backends, including models and relationships, authentication, middleware, migrations, file uploads, logging, PDF generation, payments, and MongoDB access.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/thomascasali/claude-kb-workflow/backend-dev
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.

Clone the repo
git clone --depth 1 https://github.com/thomascasali/claude-kb-workflow

Made for: Claude Code.

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 backend-dev

README.md
[![agentmods](https://agentmods.dev/badge/agents/thomascasali/claude-kb-workflow/backend-dev/github.svg)](https://agentmods.dev/agents/thomascasali/claude-kb-workflow/backend-dev)
Your own site
<a href="https://agentmods.dev/agents/thomascasali/claude-kb-workflow/backend-dev"><img src="https://agentmods.dev/badge/agents/thomascasali/claude-kb-workflow/backend-dev/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for backend-dev

Your own site · 80×15
<a href="https://agentmods.dev/agents/thomascasali/claude-kb-workflow/backend-dev"><img src="https://agentmods.dev/badge/agents/thomascasali/claude-kb-workflow/backend-dev.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 45 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,892 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00045 $0.02892
Opus 5.5 $0.00018 $0.01157
Sonnet 5.5 $0.00009 $0.00578
Haiku 4.5 $0.00005 $0.00289

Measured 1mo ago against content hash a5d0ff08fd10, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

backend-dev 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 1mo 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/backend-dev.md · 447 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 1mo ago First seen · 447 lines · 45 tokens per session scan A a5d0ff08fd10

Subscribe to this mod's changes

backend-dev is an agent published in the GitHub repository thomascasali/claude-kb-workflow (2 stars, last pushed 11d ago), with no licence file. It adds 45 tokens to every session and 2,892 once invoked, about $0.0002 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.

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