Borrowing it
Nothing to install: this file belongs to sdcorejs/sdcorejs-agent. 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/sdcorejs/sdcorejs-agent/main/AGENTS.mdgit 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/instructions/sdcorejs/sdcorejs-agent/agents-md)<a href="https://agentmods.dev/instructions/sdcorejs/sdcorejs-agent/agents-md"><img src="https://agentmods.dev/badge/instructions/sdcorejs/sdcorejs-agent/agents-md/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/sdcorejs/sdcorejs-agent/agents-md"><img src="https://agentmods.dev/badge/instructions/sdcorejs/sdcorejs-agent/agents-md.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 | $0.02202 | $0.02202 |
| Opus 5.5 | $0.00881 | $0.00881 |
| Sonnet 5.5 | $0.00440 | $0.00440 |
| Haiku 4.5 | $0.00220 | $0.00220 |
Grade A, and why
sdcorejs-agent AGENTS.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 22d 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 — 181 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SDCoreJS SDLC Agent
Shared instructions for Codex, Claude Code, Cursor, OpenAI Agents SDK and compatible agents. Copilot uses .github/copilot-instructions.md; CLAUDE.md is retained.
Engineering skill pack for developers and technical teams with 24 public skills: governed product/design/test work, Angular, NestJS, Next.js, AI-agent contracts and a generic harness. The private Node workspace is validation-only.
Runtime-localized output uses the user's language and preserves locale marks. Keep identifiers, permission codes, env keys and route paths in English.
Skill Source Language
Author skills/**, _refs/**, prompts, templates, reusable examples, and
generated mirrors in English only. Runtime localization belongs to the
consuming project/session; use locale-neutral placeholders such as
<localized label> in reusable sources.
Localization test prompts may use non-English input when they are explicitly fixtures for dispatch/runtime-localization behavior. Expected source text and generated prose remain English-only and locale-neutral.
Dispatch
Dispatch by name: frontmatter and the description: trigger. Load only frontmatter at session start; read a skill body only after selecting that skill.
Use _refs/shared/system-registry.json as the versioned source for tracks,
stack profiles, artifact kinds, repository roles, review/repair/ship support,
and evidence classes. Keep track, stack profile, capability profile, artifact
owner, repository role, and execution host as separate fields. The current
working directory is never evidence of artifact ownership.
When multiple skills match, apply this priority before reading a body:
- Explicit skill name from the user.
- Approved spec: architecture when required; approved plan:
sdcorejs-execute-plan; explicit delegated execution:sdcorejs-subagent-driven-development. - Product, design, or direct test work:
sdcorejs-product,sdcorejs-design, orsdcorejs-test; failing-test diagnosis usessdcorejs-debug. - Dedicated utility intent:
sdcorejs-cleanup,sdcorejs-simplify,sdcorejs-explore,sdcorejs-documentation,sdcorejs-review,sdcorejs-repair-loop,sdcorejs-debug,sdcorejs-ship, orsdcorejs-git. - Confirmed track implementation:
sdcorejs-ai-agent,sdcorejs-angular,sdcorejs-nestjs, orsdcorejs-nextjs. - Open-ended, ambiguous, or under-specified scope:
sdcorejs-brainstorming.
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.
- 22d ago Changed · -6 lines · -14 tokens per session ec6e3d8e55a4
- 25d ago Changed · -7 lines · -103 tokens per session a8455ab7695d
- 1mo ago Changed · +1 lines · +24 tokens per session ae7136e2163d
- 1mo ago Changed · -2 lines · -55 tokens per session 86e641994ccc
- 2mo ago First seen · 195 lines · 2,350 tokens per session scan A 32a84f06b3a9
sdcorejs-agent AGENTS.md is an instructions file published in the GitHub repository sdcorejs/sdcorejs-agent (2 stars, last pushed 15d ago), licensed MIT. It adds 2,202 tokens to every session, about $0.0088 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.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
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