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 maksimzayats/specx --skill specx-add-delivery-controllergit clone --depth 1 https://github.com/maksimzayats/specxWrote 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/maksimzayats/specx/specx-add-delivery-controller)<a href="https://agentmods.dev/skills/maksimzayats/specx/specx-add-delivery-controller"><img src="https://agentmods.dev/badge/skills/maksimzayats/specx/specx-add-delivery-controller/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/maksimzayats/specx/specx-add-delivery-controller"><img src="https://agentmods.dev/badge/skills/maksimzayats/specx/specx-add-delivery-controller.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00073 | $0.00605 |
| Opus 5 | $0.00036 | $0.00302 |
| Sonnet 5 | $0.00015 | $0.00121 |
| Haiku 4.5 | $0.00007 | $0.00060 |
Grade A, and why
specx-add-delivery-controller 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 — 54 lines — stays where its author put it; the contents beside it link to each section on GitHub.
specx Add Delivery Controller
Use this skill at the framework boundary. Read references/controller.md
before adding controller code.
Workflow
- Put controllers under
delivery/fastapi/controllers/<scope>.py. - Put request and response schemas under
delivery/fastapi/schemas/. - Use one controller per scoped set of use cases, for example
TasksControllerfor create/get/list task routes. - Put controller-only helpers such as auth dependencies, rate limiters, and
request-context readers under
delivery/fastapi/services/. - Make controllers inherit
BaseController, schemas inheritBaseFastAPISchema, delivery helpers inheritBaseDeliveryService, and FastAPI lifespan managers inheritBaseLifecycle[FastAPI]. - Add docstrings with scope and a concrete
Example:to controllers, schemas, and delivery services. - Inject use cases or delivery services with
Injected[...]. A simple delivery-owned/healthzresponse needs no core workflow; injectcore/healthuse cases when readiness checks a required external dependency or probe policy is reused across deliveries. - Map request schema/path data into the use case's same-file
CommandorQueryinput. - Call the use case.
- Map the result into a response schema.
- Declare the success status explicitly when it is not
200, such as201for a resource-creatingPOSTor204for a response with no body. - Translate known application exceptions into stable, non-sensitive HTTP responses. Do not expose raw exception messages.
- Register full public business route paths such as
/api/v1/users. Do not split API prefixes across routers and route fragments. Operational probes are the only unversioned exception:/healthzand/readyz. - For FastAPI apps with long-lived resources, inject
FastAPILifecycleinto the app factory and pass it toFastAPI(lifespan=...). - Add integration tests at the HTTP boundary, including the declared success code and each translated application error.
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 · 54 lines · 73 tokens per session scan A 85a6a3e47d23
specx-add-delivery-controller is a skill published in the GitHub repository maksimzayats/specx (201 stars, last pushed 1mo ago), licensed MIT. It adds 73 tokens to every session and 605 once invoked, about $0.0004 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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