Borrowing it
Nothing to install: this file belongs to shinpr/agentic-code. 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/shinpr/agentic-code/main/.agents/skills/coding-rules/SKILL.mdgit clone --depth 1 https://github.com/shinpr/agentic-codeWrote 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/shinpr/agentic-code/coding-rules)<a href="https://agentmods.dev/skills/shinpr/agentic-code/coding-rules"><img src="https://agentmods.dev/badge/skills/shinpr/agentic-code/coding-rules/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/shinpr/agentic-code/coding-rules"><img src="https://agentmods.dev/badge/skills/shinpr/agentic-code/coding-rules.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 | $0.00029 | $0.00483 |
| Opus 5.5 | $0.00012 | $0.00193 |
| Sonnet 5.5 | $0.00006 | $0.00097 |
| Haiku 4.5 | $0.00003 | $0.00048 |
Grade A, and why
coding-rules 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 2mo 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 — 64 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Development Rules
Language and Repository Rules
Use the repository's formatter, linter, type system, naming conventions, and representative code patterns. Read a language reference only when it applies:
- TypeScript: references/typescript.md
Repository contracts and accepted design decisions take precedence over generic style preferences.
Minimal Change
- Implement the confirmed outcome through existing mechanisms where sufficient.
- Keep unrelated cleanup and optional hardening outside the change.
- Remove unused code encountered inside the changed responsibility when evidence shows no current consumer remains.
- Introduce an abstraction only when current callers share responsibility and change pressure.
Functions and Interfaces
- Keep one coherent responsibility per function or module.
- Use the language's idiomatic parameter and data-shape conventions.
- Make external dependencies and side effects visible at the appropriate boundary.
- Preserve public and shared contracts unless the approved scope changes them.
- Prefer simple control flow; refactor complexity when it obscures behavior or error handling.
Error Handling
- Preserve actionable error context across boundaries.
- Convert errors only where the receiving layer needs a different contract.
- Avoid logging the same error at every layer.
- Keep secrets, credentials, and unnecessary personal data out of logs and messages.
- Add fallback behavior only when a current requirement defines the degraded result.
Comments and Documentation
- Explain non-obvious intent, constraints, or trade-offs.
- Keep comments timeless and remove obsolete or commented-out code.
- Update documentation when an affected consumer would otherwise act on stale information.
Refactoring
- Confirm the observable behavior and focused proof.
- Make the smallest coherent structural change.
- Run affected verification.
- Continue only when another current problem remains.
What ships with it
1 file 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.
- 2mo ago First seen · 64 lines · 29 tokens per session scan A 7b69a15ac05f
coding-rules is a skill published in the GitHub repository shinpr/agentic-code (50 stars, last pushed 7d ago), licensed MIT. It adds 29 tokens to every session and 483 once invoked, about $0.0001 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 2026-08-30.
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