simplenote-mcp-server: Skill for Claude Code

.claude/skills/security-review/SKILL.md

security-review is a skill for Claude Code from docdyhr/simplenote-mcp-server. It costs 149 tokens per session (2,058 once invoked), scanned A, original, MIT.

A codebase security scanner that examines how data moves through software to find vulnerabilities such as injection flaws, exposed secrets, and broken access controls.

In plain words
What is it for?
It helps review code for SQL injection, cross-site scripting, command injection, leaked credentials, vulnerable dependencies, unsafe cryptography, and authentication or authorization errors.
Why use it?
It can consider how parts of the application interact instead of checking only for isolated text patterns, helping uncover security problems that simple pattern checks may miss.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is docdyhr/simplenote-mcp-server's own configuration. It tells Claude Code how to work on simplenote-mcp-server itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything simplenote-mcp-server configures →

Reuse

Borrowing it

Nothing to install: this file belongs to docdyhr/simplenote-mcp-server. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/docdyhr/simplenote-mcp-server/main/.claude/skills/security-review/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/docdyhr/simplenote-mcp-server

Made for: Claude Code.

Wrote 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.

agentmods badge for security-review

README.md
[![agentmods](https://agentmods.dev/badge/skills/docdyhr/simplenote-mcp-server/security-review/github.svg)](https://agentmods.dev/skills/docdyhr/simplenote-mcp-server/security-review)
Your own site
<a href="https://agentmods.dev/skills/docdyhr/simplenote-mcp-server/security-review"><img src="https://agentmods.dev/badge/skills/docdyhr/simplenote-mcp-server/security-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.

agentmods 80×15 button for security-review

Your own site · 80×15
<a href="https://agentmods.dev/skills/docdyhr/simplenote-mcp-server/security-review"><img src="https://agentmods.dev/badge/skills/docdyhr/simplenote-mcp-server/security-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 149 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,058 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00149 $0.02058
Opus 5.5 $0.00060 $0.00823
Sonnet 5.5 $0.00030 $0.00412
Haiku 4.5 $0.00015 $0.00206

Measured yesterday against content hash 002392d88637, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

security-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 yesterday.

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.

Origin

Copies of this mod

2 near-identical copies found in the catalogue:

.claude/skills/security-review/SKILL.md · 169 lines

How it starts

The opening of the file, as written. The whole thing — 169 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Security Review

An AI-powered security scanner that reasons about your codebase the way a human security researcher would — tracing data flows, understanding component interactions, and catching vulnerabilities that pattern-matching tools miss.

When to Use This Skill

Use this skill when the request involves:

  • Scanning a codebase or file for security vulnerabilities
  • Running a security review or vulnerability check
  • Checking for SQL injection, XSS, command injection, or other injection flaws
  • Finding exposed API keys, hardcoded secrets, or credentials in code
  • Auditing dependencies for known CVEs
  • Reviewing authentication, authorization, or access control logic
  • Detecting insecure cryptography or weak randomness
  • Performing a data flow analysis to trace user input to dangerous sinks
  • Any request phrasing like "is my code secure?", "scan this file", or "check my repo for vulnerabilities"
  • Running /security-review or /security-review <path>

How This Skill Works

Unlike traditional static analysis tools that match patterns, this skill:

  1. Reads code like a security researcher — understanding context, intent, and data flow
  2. Traces across files — following how user input moves through your application
  3. Self-verifies findings — re-examines each result to filter false positives
  4. Assigns severity ratings — CRITICAL / HIGH / MEDIUM / LOW / INFO
  5. Proposes targeted patches — every finding includes a concrete fix
  6. Requires human approval — nothing is auto-applied; you always review first

Execution Workflow

Follow these steps in order every time:

Step 1 — Scope Resolution

Determine what to scan:

  • If a path was provided (/security-review src/auth/), scan only that scope
  • If no path given, scan the entire project starting from the root
  • Identify the language(s) and framework(s) in use (check package.json, requirements.txt, go.mod, Cargo.toml, pom.xml, Gemfile, composer.json, etc.)
  • Read references/language-patterns.md to load language-specific vulnerability patterns

Read the full file on GitHub · 169 lines

Files

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.

Changes

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.

  1. yesterday First seen · 169 lines · 149 tokens per session scan A 002392d88637

Subscribe to this mod's changes

security-review is a skill published in the GitHub repository docdyhr/simplenote-mcp-server (21 stars, last pushed today), licensed MIT. It adds 149 tokens to every session and 2,058 once invoked, about $0.0006 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 2026-10-21.

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