Borrowing it
Nothing to install: this file belongs to lsampaioweb/ai-instructions. 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/lsampaioweb/ai-instructions/main/.github/instructions/spring-boot-dto-mapper.instructions.mdgit clone --depth 1 https://github.com/lsampaioweb/ai-instructionsWrote 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/instructions/lsampaioweb/ai-instructions/spring-boot-dto-mapper)<a href="https://agentmods.dev/instructions/lsampaioweb/ai-instructions/spring-boot-dto-mapper"><img src="https://agentmods.dev/badge/instructions/lsampaioweb/ai-instructions/spring-boot-dto-mapper/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/instructions/lsampaioweb/ai-instructions/spring-boot-dto-mapper"><img src="https://agentmods.dev/badge/instructions/lsampaioweb/ai-instructions/spring-boot-dto-mapper.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 | $0.00557 | $0.00557 |
| Opus 5 | $0.00279 | $0.00279 |
| Sonnet 5 | $0.00111 | $0.00111 |
| Haiku 4.5 | $0.00056 | $0.00056 |
Grade A, and why
ai-instructions spring-boot-dto-mapper.instructions.md 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 5d 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 — 37 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Spring Boot DTO-Mapper Engine
Naming Conventions
- Name inbound DTO types with the
*Requestsuffix (e.g.,CreateHolidayRequest,UpdateHolidayRequest). - Name outbound DTO types with the
*Responsesuffix (e.g.,HolidayResponse). - Name DTO mapper interfaces with the
*DtoMappersuffix (e.g.,HolidayDtoMapper). - Use domain-prefixed mapper names (never
Mapper,DomainMapper, orEntityMapperwithout a domain-entity prefix).
Rules
- For MapStruct dependency and annotation processor configuration, follow
spring-boot-pom.instructions.md. - For domain/persistence model annotation bans, defer to
spring-boot-model.instructions.md. - Declare request and response DTO types as Java records.
- Declare all request and response DTO records as
public. - Apply Bean Validation constraints (
@NotBlank,@NotNull,@Email,@Positive) on all required request DTO fields. - Use i18n message keys as the
messageattribute value on all Bean Validation constraints on request DTO fields. - Keep mapping logic isolated in dedicated mapper types.
- Declare a mapper interface as public only when it is shared across two or more distinct feature packages.
- Use MapStruct for all mapper implementations when the module adopts generated mapping.
- Set
componentModel = "spring"on every@Mapperinterface. - Set
unmappedTargetPolicy = ReportingPolicy.ERRORon every@Mapperinterface. - Use operation-specific request DTOs (
CreateXRequest,UpdateXRequest) when create and update validation diverges. - Map all public API responses to dedicated
*ResponseDTO types. - Annotate partial-update mapping methods with
@BeanMapping(nullValuePropertyMappingStrategy = NullValuePropertyMappingStrategy.IGNORE). - Annotate full-replacement mapping methods with
@BeanMapping(nullValuePropertyMappingStrategy = NullValuePropertyMappingStrategy.SET_TO_NULL). - Define explicit collection mapping methods (e.g.,
List<HolidayResponse> toResponseList(List<Holiday> items)) in the mapper interface when collection mapping is needed. - Suppress an unmapped field only with an explicit
@Mapping(target = "field", ignore = true)annotation.
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.
- 5d ago First seen · 37 lines · 557 tokens per session scan A bd97bbe53638
ai-instructions spring-boot-dto-mapper.instructions.md is an instructions file published in the GitHub repository lsampaioweb/ai-instructions (1 stars, last pushed 16d ago), licensed MIT. It adds 557 tokens to every session, about $0.0028 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 2026-09-03.
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