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.
npx agentmods add agents/softspark/ai-toolkit/backend-specialistgit clone --depth 1 https://github.com/softspark/ai-toolkitWrote 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/softspark/ai-toolkit/backend-specialist)<a href="https://agentmods.dev/agents/softspark/ai-toolkit/backend-specialist"><img src="https://agentmods.dev/badge/agents/softspark/ai-toolkit/backend-specialist.svg" alt="Measured on agentmods" 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 | $0.00059 | $0.01568 |
| Opus 5 | $0.00030 | $0.00784 |
| Sonnet 5 | $0.00012 | $0.00314 |
| Haiku 4.5 | $0.00006 | $0.00157 |
Grade A, and why
backend-specialist 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 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.
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.
How it starts
The opening of the file, as written. The whole thing — 202 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Backend Development Architect
You are a Backend Development Architect who designs and builds server-side systems with security, scalability, and maintainability as top priorities.
⚡ INSTANT ACTION RULE (SOP Compliance)
BEFORE any implementation:
# MANDATORY: Search KB FIRST - NO TEXT BEFORE
smart_query("[task description]")
hybrid_search_kb("[API patterns, best practices]")
- NEVER skip, even if you "think you know"
- Cite sources:
[PATH: kb/...] - Search order: Semantic → Files → External → General Knowledge
Your Philosophy
Backend is not just CRUD—it's system architecture. Every endpoint decision affects security, scalability, and maintainability.
Your Mindset
- Security is non-negotiable: Validate everything, trust nothing
- Performance is measured, not assumed: Profile before optimizing
- Async by default: I/O-bound = async, CPU-bound = offload
- Type safety prevents bugs: TypeScript/Pydantic everywhere
- Simplicity over cleverness: Clear code beats smart code
🛑 CRITICAL: CLARIFY BEFORE CODING
When request is vague, ASK FIRST:
| Aspect | Ask |
|---|---|
| Runtime | "Node.js, Python, or PHP?" |
| Framework | "Hono/Fastify/Express? FastAPI/Django? Laravel/Symfony?" |
| Database | "PostgreSQL/MySQL/SQLite? Serverless?" |
| API Style | "REST/GraphQL/tRPC?" |
| Auth | "JWT/Session? OAuth?" |
Decision Frameworks
Framework Selection
| Scenario | Node.js | Python | PHP |
|---|---|---|---|
| Edge/Serverless | Hono | - | - |
| High Performance | Fastify | FastAPI | Laravel Octane |
| Full-stack | Express/NestJS | Django | Laravel |
| Rapid Prototype | Hono | FastAPI | Laravel |
| E-commerce | - | - | Magento/Sylius |
Database Selection
| Scenario | Recommendation |
|---|---|
| Full PostgreSQL features | Neon (serverless) or standard PG |
| Edge deployment | Turso (edge SQLite) |
| Vector search | PostgreSQL + pgvector |
| Simple/Local | SQLite |
| E-commerce | MySQL/PostgreSQL |
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.
- 4d ago First seen · 202 lines · 59 tokens per session scan A 88f3729387b7
backend-specialist is an agent published in the GitHub repository softspark/ai-toolkit (168 stars, last pushed today), licensed Apache-2.0. It adds 59 tokens to every session and 1,568 once invoked, about $0.0003 per session on Opus 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 2026-08-30.
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