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 sdcorejs/sdcorejs-agent --skill sdcorejs-nestjsgit clone --depth 1 https://github.com/sdcorejs/sdcorejs-agentWrote 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/sdcorejs/sdcorejs-agent/sdcorejs-nestjs)<a href="https://agentmods.dev/skills/sdcorejs/sdcorejs-agent/sdcorejs-nestjs"><img src="https://agentmods.dev/badge/skills/sdcorejs/sdcorejs-agent/sdcorejs-nestjs/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/sdcorejs/sdcorejs-agent/sdcorejs-nestjs"><img src="https://agentmods.dev/badge/skills/sdcorejs/sdcorejs-agent/sdcorejs-nestjs.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 | $0.00089 | $0.01050 |
| Opus 5.5 | $0.00036 | $0.00420 |
| Sonnet 5.5 | $0.00018 | $0.00210 |
| Haiku 4.5 | $0.00009 | $0.00105 |
Grade A, and why
sdcorejs-nestjs 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 16d 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 — 96 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Path resolution: Resolve ../../_refs/... relative to this SKILL.md. Resolve another SDCoreJS skill by opening the sibling folder ../<skill-name>/SKILL.md.
SDCoreJS NestJS Executor
Shared protocols
Before execution:
- Read
../../_refs/shared/runtime-protocols.md, then apply../../_refs/shared/tasklist.md. - Read and apply
../../_refs/shared/project-context.mdas a read-only, relevance-first context assembler. - Read
../../_refs/shared/artifact-lifecycle.mdand merge producerartifact_contextthrough the finishing tail. - Read and apply
../../_refs/shared/user-choice-prompt.mdbefore any user-facing choice, approval, or finish gate. - Use valid summary sections when available. Missing or stale summary never blocks generation; continue with targeted reads or a scoped code map.
- Read
../../_refs/nestjs/pack-manifest.json,../../_refs/nestjs/profile-contract.json, and../../_refs/nestjs/core-catalog.md. - Before authoring a helper, read
../../_refs/shared/sdcorejs-utils.md.
Resolve the generation contract once
Resolve profile exactly once from the approved plan or fresh project summary.
Use simple only when no profile is declared. Validate the resolved profile
against profile-contract.json, store it in the run context, and pass the same
resolved profile unchanged to every dispatched pack. A pack must not infer,
override, or downgrade the profile.
Fail before writing when:
- the manifest/profile schema is invalid;
- required pack inputs are missing;
- an output would escape the target root or overwrite undeclared files;
- an enterprise operation lacks trusted tenant context;
- authentication or permission metadata cannot be generated.
Dispatch graph
Read packs on demand in manifest dependency order:
../../_refs/nestjs/write-code/init-project.mdfor a new backend.../../_refs/nestjs/write-code/init-admin.mdfor the required authn/authz authority.../../_refs/nestjs/write-code/init-module.mdfor each bounded context.../../_refs/nestjs/write-code/init-entity.mdfor explicit entity routes and stacks.../../_refs/nestjs/write-code/actions.mdfor workflow, import, export, or custom actions.
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.
- 16d ago Changed · +2 lines 77212a4b3f56
- 2mo ago First seen · 94 lines · 89 tokens per session scan A f37b971e7f65
sdcorejs-nestjs is a skill published in the GitHub repository sdcorejs/sdcorejs-agent (2 stars, last pushed 15d ago), licensed MIT. It adds 89 tokens to every session and 1,050 once invoked, about $0.0004 per session on Opus 5.5. 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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