security-bluebook-builder

security-bluebook-builder is a skill for Claude Code, Codex from tmolavi/mcp-agent-skills-hub. It costs 46 tokens per session (573 once invoked), scanned A, original, MIT.

A guide for creating a concise security policy for an application that handles sensitive data. It defines required and recommended controls, states assumptions and scope, and sets security approval gates.

In plain words
What is it for?
Use it to produce a security policy covering sensitive data, trust boundaries, authentication, storage, external services, retention, deletion, and go-or-no-go checks.
Why use it?
It turns broad security advice into explicit rules that a team can apply and check. It also exposes missing information about data, authentication, storage, third parties, and deletion.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to produce a security policy covering sensitive data, trust boundaries, authentication, storage, external services, retention, deletion, and go-or-no-go checks.

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Install with agentmods
npx agentmods add skills/tmolavi/mcp-agent-skills-hub/security-bluebook-builder
Install

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.

Any agent
npx skills add tmolavi/mcp-agent-skills-hub --skill security-bluebook-builder
Clone the repo
git clone --depth 1 https://github.com/tmolavi/mcp-agent-skills-hub

Made for: Claude Code, Codex.

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-bluebook-builder

README.md
[![agentmods](https://agentmods.dev/badge/skills/tmolavi/mcp-agent-skills-hub/security-bluebook-builder/github.svg)](https://agentmods.dev/skills/tmolavi/mcp-agent-skills-hub/security-bluebook-builder)
Your own site
<a href="https://agentmods.dev/skills/tmolavi/mcp-agent-skills-hub/security-bluebook-builder"><img src="https://agentmods.dev/badge/skills/tmolavi/mcp-agent-skills-hub/security-bluebook-builder/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-bluebook-builder

Your own site · 80×15
<a href="https://agentmods.dev/skills/tmolavi/mcp-agent-skills-hub/security-bluebook-builder"><img src="https://agentmods.dev/badge/skills/tmolavi/mcp-agent-skills-hub/security-bluebook-builder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 573 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 $0.00046 $0.00573
Opus 5 $0.00023 $0.00287
Sonnet 5 $0.00009 $0.00115
Haiku 4.5 $0.00005 $0.00057

Measured 8d ago against content hash d4f053069cb5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

security-bluebook-builder 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 8d 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.

skills/security-bluebook-builder/SKILL.md · 59 lines

How it starts

The opening of the file, as written. The whole thing — 59 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Security Bluebook Builder

When to Use

  • You need a concise but enforceable security policy for an app handling sensitive data.
  • You want a single Blue Book document with explicit assumptions, controls, and go/no-go gates.
  • The user needs policy guidance grounded in scope, threat model, and operational security defaults rather than generic advice.

Overview

Build a minimal but real security policy for sensitive apps. The output is a single, coherent Blue Book document using MUST/SHOULD/CAN language, with explicit assumptions, scope, and security gates.

Workflow

1) Gather inputs (ask only if missing)

Collect just enough context to fill the template. If the user has not provided details, ask up to 6 short questions:

  • What data classes are handled (PII, PHI, financial, tokens, content)?
  • What are the trust boundaries (client/server/third parties)?
  • How do users authenticate (OAuth, email/password, SSO, device sessions)?
  • What storage is used (DB, object storage, logs, analytics)?
  • What connectors or third parties are used?
  • Retention and deletion expectations (default + user-initiated)?

If the user cannot answer, proceed with safe defaults and mark TODOs.

2) Draft the Blue Book

Load references/bluebook_template.md and fill it with the provided details. Keep it concise, deterministic, and enforceable.

3) Enforce guardrails

  • Do not include secrets, tokens, or internal credentials.
  • If something is unknown, write "TODO" plus a clear assumption.
  • Fail closed: if a capability is required but unavailable, call it out explicitly.
  • Keep scope minimal; do not add features or tools beyond what the user asked for.

4) Quality checks

Confirm the Blue Book includes:

  • Threat model (assumptions + out-of-scope)
  • Data classification + handling rules
  • Trust boundaries + controls
  • Auth/session policy
  • Token handling policy
  • Logging/audit policy
  • Retention/deletion
  • Incident response mini-runbook
  • Security gates + go/no-go checklist

Read the full file on GitHub · 59 lines

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. 8d ago First seen · 59 lines · 46 tokens per session scan A d4f053069cb5

Subscribe to this mod's changes

security-bluebook-builder is a skill published in the GitHub repository tmolavi/mcp-agent-skills-hub (8 stars, last pushed 16d ago), licensed MIT. It adds 46 tokens to every session and 573 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 2026-09-03.

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