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 rules/lsampaioweb/ai-instructions/spring-boot-modelgit clone --depth 1 https://github.com/lsampaioweb/ai-instructionsWhat 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 | $0.00000 | $0.00247 |
| Opus 5 | $0.00000 | $0.00123 |
| Sonnet 5 | $0.00000 | $0.00049 |
| Haiku 4.5 | $0.00000 | $0.00025 |
Grade A, and why
spring-boot-model 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 2d 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
Spring Boot Domain Model Engine
Naming Conventions
- Name domain model types with the
*Modelsuffix (e.g.,HolidayModel,AccountModel).
Rules
- Declare domain model types as Java records when all fields are set at construction time and the type is immutable.
- Declare a compact canonical constructor in domain model records to validate required field invariants using
Objects.requireNonNull. - Declare no instance methods in domain model records beyond what the Java record specification generates; delegate all business operations to the service layer.
- Place domain model types inside the owning feature package.
- Keep domain model types free of persistence annotations.
- Keep domain model types free of HTTP transport annotations and validation annotations.
- Use only primitive or standard Java types for all domain model fields.
- Use immutable collection types (e.g.,
List.copyOf(...)) for any collection-typed field in a domain model record.
Safety Guards
- Never use a domain model type directly as a controller method parameter or return type.
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.
- 2d ago First seen · 24 lines · 0 tokens per session scan A a07e1a24fb3d
spring-boot-model is a cursor rule published in the GitHub repository lsampaioweb/ai-instructions (1 stars, last pushed 10d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 247 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 2026-08-31.
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