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 skills add keodubo/PAW-Wiki --skill paw-services-layergit clone --depth 1 https://github.com/keodubo/PAW-WikiWrote 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/skills/keodubo/paw-wiki/paw-services-layer)<a href="https://agentmods.dev/skills/keodubo/paw-wiki/paw-services-layer"><img src="https://agentmods.dev/badge/skills/keodubo/paw-wiki/paw-services-layer/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/skills/keodubo/paw-wiki/paw-services-layer"><img src="https://agentmods.dev/badge/skills/keodubo/paw-wiki/paw-services-layer.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 | $0.00053 | $0.00620 |
| Opus 5 | $0.00026 | $0.00310 |
| Sonnet 5 | $0.00011 | $0.00124 |
| Haiku 4.5 | $0.00005 | $0.00062 |
Grade A, and why
paw-services-layer 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 10d 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 — 48 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Paw Services Layer
Overview
Use this for services/: business use cases, transactions, mail, schedulers, and service tests.
Read references/layer-rules.md before changing services.
Workflow
- Inspect the service contract, implementation, DAO contracts, and existing tests for the use case.
- Resolve stage: TP1 services orchestrate JDBC DAOs; TP2 services may receive managed JPA entities but must not depend on ORM APIs; TP final services back REST resources and SPA flows.
- Put business decisions in one service method that controllers/resources can call once.
- Annotate public service methods with
@Transactional; selectors use@Transactional(readOnly = true). - Let services create/update domain models and orchestrate DAOs.
- In TP final, return domain/use-case results and enforce business invariants; REST resources map those results to DTOs, status codes, headers, and Problem Details.
- Keep JSP paths, request objects, controller redirects, JAX-RS
Response,UriInfo, media types, CORS/cache headers, SQL,EntityManager, auth transport details, and frontend state out of services. - Add tests that assert returned state, database-observable side effects, or fake/recorded mail behavior.
Business Rules
- Use DAOs for persistence; do not join/filter persisted datasets in Java.
- Do not depend on
LocaleContextHolderfor recipient mail language; use the recipient preference/locale. - Scheduler jobs delegate into transactional service methods.
- Avoid transactional self-invocation (
this.otherMethod()expecting proxy behavior). - In TP2, avoid relying on lazy loading side effects outside clear transaction boundaries.
- Do not put
@Transactionalon mail-only async classes unless they use DB state deliberately. - Authorization and ownership should be declarative in web security when it is route access; services can enforce domain invariants that are not route permissions.
- REST resources own HTTP mapping; services should not mint
Location/Link/ETag, Problem Details, CORS headers, or frontend tokens.
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 10d ago First seen · 48 lines · 53 tokens per session scan A 30ad78f05f68
paw-services-layer is a skill published in the GitHub repository keodubo/PAW-Wiki (10 stars, last pushed 1mo ago), licensed MIT. It adds 53 tokens to every session and 620 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 2026-08-31.
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