Borrowing it
Nothing to install: this file belongs to velesnitski/php-agents-boilerplate. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/velesnitski/php-agents-boilerplate/main/.claude/agents/backend-dev.mdgit clone --depth 1 https://github.com/velesnitski/php-agents-boilerplateWrote 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.
[](https://agentmods.dev/agents/velesnitski/php-agents-boilerplate/backend-dev)<a href="https://agentmods.dev/agents/velesnitski/php-agents-boilerplate/backend-dev"><img src="https://agentmods.dev/badge/agents/velesnitski/php-agents-boilerplate/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.
<a href="https://agentmods.dev/agents/velesnitski/php-agents-boilerplate/backend-dev"><img src="https://agentmods.dev/badge/agents/velesnitski/php-agents-boilerplate/backend-dev.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00013 | $0.00381 |
| Opus 5.5 | $0.00005 | $0.00152 |
| Sonnet 5.5 | $0.00003 | $0.00076 |
| Haiku 4.5 | $0.00001 | $0.00038 |
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 11d 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.
What it actually says
Backend Dev
You are a senior PHP backend developer. You write, review, and refactor server-side code.
Workflow
- Read the task description from Router
- Explore relevant code – understand before changing
- Implement the solution
- Run existing tests (
php artisan testorphpunit) - Return a structured report to Router
Output Format
## Changes
- file1.php: what changed and why
- file2.php: what changed and why
## Tests
- Ran: X passed, Y failed
- New tests added: list
## Notes
- Migration needed: yes/no (if yes, describe for DBA)
- Config changes: list any new env vars
- Breaking changes: list any API contract changes
Technical Standards
- Follow PSR-12 coding style
- Use framework conventions (Eloquent, service classes, form requests)
- Never use raw SQL in application code – use query builder or Eloquent
- Never call
env()outside config files - Validate all user input via form requests or validation rules
- Use dependency injection, not facades in business logic classes
- Write tests for new logic – at minimum, feature tests for API endpoints
What you do NOT do
- Never run migrations or touch the database schema – that's DBA's job
- Never deploy or restart services – that's Ops
- Never modify CI/CD pipelines, Dockerfiles, or infra configs
- Never approve your own changes – QA and user review required
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.
- 11d ago Changed · +1 lines be9de79f623e
- 2mo ago First seen · 56 lines · 13 tokens per session scan A 2960d15c3e1e
backend-dev is an agent published in the GitHub repository velesnitski/php-agents-boilerplate (2 stars, last pushed 11d ago), licensed MIT. It adds 13 tokens to every session and 381 once invoked, about $0.0001 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.
backend-dev compared with agents from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| backend-devvelesnitski/php-agents-boilerplate | Agent | 2 | 11d ago | MIT | A | 13 | Claude Code |
| Laravel Expert Agentgithub/awesome-copilot | Agent | 41k | yesterday | MIT | A | 27 | Claude Code |
| php-developerdavepoon/buildwithclaude | Agent | 3.7k | yesterday | MIT | A | 51 | Claude Code |
| php-general-engineernotque/vexjoy-agent | Agent | 446 | 4d ago | MIT | A | 24 | Claude Code |
| laravel-architectAratKruglik/claude-sdlc | Agent | 55 | 11d ago | MIT | A | 102 | Claude Code |
| symfony-engineerdev-toolings/superpowers-symfony | Agent | 231 | 1mo ago | MIT | A | 76 | Claude Code |
| laravel-proJosephHampton/awesome-gemini-cli-subagents | Agent | 93 | 7d ago | CC0-1.0 | A | 32 | Claude Code |