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 ashaykubal/essential-agents-skills --skill code-reviewgit clone --depth 1 https://github.com/ashaykubal/essential-agents-skillsWrote 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/ashaykubal/essential-agents-skills/code-review)<a href="https://agentmods.dev/skills/ashaykubal/essential-agents-skills/code-review"><img src="https://agentmods.dev/badge/skills/ashaykubal/essential-agents-skills/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/ashaykubal/essential-agents-skills/code-review"><img src="https://agentmods.dev/badge/skills/ashaykubal/essential-agents-skills/code-review.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 | $0.00061 | $0.03322 |
| Opus 5.5 | $0.00024 | $0.01329 |
| Sonnet 5.5 | $0.00012 | $0.00664 |
| Haiku 4.5 | $0.00006 | $0.00332 |
Grade A, and why
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 1mo 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 — 429 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Code Review
Comprehensive code review with four independently-referenceable sections. Runs static tools first (fail fast), then applies LLM judgment for patterns tools cannot catch.
When to Use This Skill
Load this skill when the user request matches ANY of these patterns:
| Trigger Pattern | Example User Request |
|---|---|
| Code review | "Review this code", "Check my changes", "Code review for PR" |
| Security review | "Check for security issues", "Find vulnerabilities", "OWASP audit" |
| Type safety check | "Find any usage", "Check type safety", "Null handling issues?" |
| Quality check | "Is this code clean?", "Check code quality", "Standards compliance" |
DO NOT use for:
- Running tests (use
npx jest(or your project test runner)) - Auditing test quality (use
test-auditskill) - Debugging issues (use
issue-debuggingskill) - Performance profiling (requires runtime analysis)
Dependencies
This skill references supporting files. Understanding what's required vs optional ensures consistent execution.
| Category | Files | Requirement | When to Load |
|---|---|---|---|
| Pattern references | references/{section}-patterns.md |
REQUIRED | Always load for each enabled section |
| Framework patterns | frameworks/{detected}.md |
CONDITIONALLY REQUIRED | If framework detected → MUST load; if not detected → skip |
| Examples | examples/anti-patterns/*.ts, examples/recommended/*.ts |
OPTIONAL | For calibration on ambiguous cases; kept for model portability |
Fallback behavior:
- If framework detected → Loading
frameworks/{name}.mdis REQUIRED - If no framework detected → Skip framework patterns entirely (do not load
generic.md) - If a referenced file is missing → Note in diagnostic log, continue with available patterns
Usage
/code-review [path] [flags]
Arguments:
path- File or directory to review (default: files in recent context)
What ships with it
21 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.
- examples/anti-patterns/linting.ts 4.9 KB runs code
- examples/anti-patterns/security.ts 2.7 KB runs code
- examples/anti-patterns/standards.ts 5.0 KB runs code
- examples/anti-patterns/type-safety.ts 2.9 KB runs code
- examples/recommended/linting.ts 5.4 KB runs code
- examples/recommended/security.ts 4.5 KB runs code
- examples/recommended/standards.ts 6.2 KB runs code
- examples/recommended/type-safety.ts 4.1 KB runs code
- frameworks/angular.md 4.4 KB
- frameworks/django.md 5.2 KB
- frameworks/express.md 5.0 KB
- frameworks/flask.md 6.1 KB
- frameworks/generic.md 4.3 KB
- frameworks/react.md 3.6 KB
- frameworks/vue.md 4.5 KB
- references/linting-patterns.md 5.6 KB
- references/security-patterns.md 5.0 KB
- references/standards-patterns.md 7.7 KB
- references/type-safety-patterns.md 4.3 KB
- templates/output-direct.yaml 3.1 KB
- templates/output-pipeline.yaml 3.4 KB
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.
- 1mo ago First seen · 429 lines · 61 tokens per session scan A 9f4bcb321d49
code-review is a skill published in the GitHub repository ashaykubal/essential-agents-skills (2 stars, last pushed 2mo ago), licensed MIT. It adds 61 tokens to every session and 3,322 once invoked, about $0.0002 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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