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 HoangNguyen0403/agent-skills-standard --skill common-code-reviewgit clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standardWrote 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/hoangnguyen0403/agent-skills-standard/common-code-review)<a href="https://agentmods.dev/skills/hoangnguyen0403/agent-skills-standard/common-code-review"><img src="https://agentmods.dev/badge/skills/hoangnguyen0403/agent-skills-standard/common-code-review/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/hoangnguyen0403/agent-skills-standard/common-code-review"><img src="https://agentmods.dev/badge/skills/hoangnguyen0403/agent-skills-standard/common-code-review.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 | $0.00032 | $0.00622 |
| Opus 5 | $0.00016 | $0.00311 |
| Sonnet 5 | $0.00006 | $0.00124 |
| Haiku 4.5 | $0.00003 | $0.00062 |
Grade A, and why
common-code-review 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 13d 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 — 78 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Code Review Expert
Priority: P1 (HIGH)
Role: Principal Engineer / senior review. Focus: logic, security, architecture. constructive.
Review Principles
- Substance > Style: Ignore formatting. Find bugs, flaws, design errors.
- Questions > Commands: " this handle null?" instead of "Fix this."
- Clarity: Group by
[BLOCKER],[MAJOR],[NIT]. - Sync: Enforce active framework P0 rules.
- Evidence First: Findings need file, AC, test, or diff evidence.
- Findings First: Lead with risks, not summary.
- Review completeness: Include test coverage and edge-case coverage even when CI is green or the requester asks for a quick review.
Review Checklist (Mandatory)
- Security: No injection, secrets, auth leaks.
- Efficiency: No N+1 queries, memory leaks, high Big O.
- Logic: Requirements met. Edge cases handled.
- Clean Code: DRY/SOLID. Intent-revealing names.
Output Format (Strict)
Every substantive finding must include the literal `Why:` field. If code or a diff is missing, state the evidence needed before offering a substantive finding.
[SEVERITY] [File] Issue Description
Why: Risk or impact description.
Fix: 1-2 line code or action.
Red Flags
- Stop if you are praising before reviewing: Start with findings.
- Stop if a claim lacks evidence: Mark it as assumption or inspect more.
- Stop if you are reviewing style only: Return to behavior, security, tests.
Rationalization Prevention
- "It probably handles that edge case": Probably is not evidence.
- "CI is green so review is done": Tests do not replace review.
- "Only style matters here": Ignore style, not behavioral risk.
Anti-Patterns
- No Nitpicking: Ignore style; focus on impact.
- No Vague Demands: Explain why and how.
- No Skimming: Review tests and edge cases.
References
What ships with it
5 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.
- 13d ago First seen · 78 lines · 32 tokens per session scan A 3bf1d28ca94d
common-code-review is a skill published in the GitHub repository HoangNguyen0403/agent-skills-standard (565 stars, last pushed 3d ago), licensed MIT. It adds 32 tokens to every session and 622 once invoked, about $0.0002 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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