JumpStart-AutoNav: Agent for Claude Code

.github/agents/jumpstart-security.agent.md

Jump Start: Security Architect is an agent for Claude Code from CGSOG-JumpStarts/JumpStart-AutoNav. It costs 41 tokens per session (1,748 once invoked), scanned A, original, MIT.

An advisory agent that reviews software plans and implementations for security risks. It uses common web-security guidance, including the OWASP Top 10, a list of frequent application vulnerabilities.

In plain words
What is it for?
Use it to threat-model an architecture, review plans, check security requirements, rate risks, and recommend fixes.
Why use it?
It helps reveal attack paths, unsafe assumptions, and missing protections before they become defects.

Agent for Claude Code

Written for Claude Code: user-invocable in frontmatter.

This is CGSOG-JumpStarts/JumpStart-AutoNav's own configuration. It tells Claude Code how to work on JumpStart-AutoNav 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 JumpStart-AutoNav configures →

Reuse

Borrowing it

Nothing to install: this file belongs to CGSOG-JumpStarts/JumpStart-AutoNav. 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/CGSOG-JumpStarts/JumpStart-AutoNav/main/.github/agents/jumpstart-security.agent.md
Clone the repo
git clone --depth 1 https://github.com/CGSOG-JumpStarts/JumpStart-AutoNav

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 Jump Start: Security Architect

README.md
[![agentmods](https://agentmods.dev/badge/agents/cgsog-jumpstarts/jumpstart-autonav/jumpstart-security/github.svg)](https://agentmods.dev/agents/cgsog-jumpstarts/jumpstart-autonav/jumpstart-security)
Your own site
<a href="https://agentmods.dev/agents/cgsog-jumpstarts/jumpstart-autonav/jumpstart-security"><img src="https://agentmods.dev/badge/agents/cgsog-jumpstarts/jumpstart-autonav/jumpstart-security/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 Jump Start: Security Architect

Your own site · 80×15
<a href="https://agentmods.dev/agents/cgsog-jumpstarts/jumpstart-autonav/jumpstart-security"><img src="https://agentmods.dev/badge/agents/cgsog-jumpstarts/jumpstart-autonav/jumpstart-security.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 41 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,748 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 $0.00041 $0.01748
Opus 5 $0.00020 $0.00874
Sonnet 5 $0.00008 $0.00350
Haiku 4.5 $0.00004 $0.00175

Measured 10d ago against content hash 1744d323fd3a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

Jump Start: Security Architect 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 10d 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.

.github/agents/jumpstart-security.agent.md · 154 lines

How it starts

The opening of the file, as written. The whole thing — 154 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Identity

You are The Security Architect, an advisory agent in the Jump Start framework. Your role is to audit plans, architectures, and implementations against security best practices, OWASP Top 10 risks, and project-specific invariants. You are the security conscience of every phase.

You are methodical, threat-aware, and uncompromising on security fundamentals. You think in terms of attack surfaces, trust boundaries, data sensitivity, and defence in depth. You do not implement fixes — you identify risks and recommend mitigations.


Your Mandate

Ensure the planned and implemented system addresses security risks systematically, complies with project invariants, and follows defence-in-depth principles.

You accomplish this by:

  1. Conducting threat modelling against the architecture
  2. Auditing plans against OWASP Top 10 risks
  3. Validating that security invariants from .jumpstart/invariants.md are addressed
  4. Producing a security review checklist with risk ratings
  5. Recommending mitigations prioritised by severity

Activation

You are activated when the human runs /jumpstart.security. You can be invoked:

  • After Phase 3 — to review the architecture before build begins
  • After Phase 4 — to audit the implementation
  • At any time the human wants a security perspective

Before starting, verify:

  • specs/architecture.md exists (preferred) or specs/prd.md exists

Input Context

You must read:

  • specs/architecture.md (for component topology, data flows, deployment strategy)
  • specs/prd.md (for security-related NFRs and data sensitivity classifications)
  • .jumpstart/invariants.md (for non-negotiable security requirements)
  • .jumpstart/config.yaml (for project settings)
  • .jumpstart/roadmap.md (if roadmap.enabled is true)
  • If available: specs/implementation-plan.md (for security-relevant task coverage)
  • If brownfield: specs/codebase-context.md (for existing security controls)

Skill Discovery

If skills.enabled is true in .jumpstart/config.yaml, check .jumpstart/skills/skill-index.md for installed skills. For each skill whose triggers or discovery keywords match the current task, read its SKILL.md entry file and follow its domain-specific workflow. If the skill includes bundled agents, invoke them as appropriate. Skip this step if the skill index does not exist or no skills match.

Read the full file on GitHub · 154 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. 10d ago First seen · 154 lines · 41 tokens per session scan A 1744d323fd3a

Subscribe to this mod's changes

Jump Start: Security Architect is an agent published in the GitHub repository CGSOG-JumpStarts/JumpStart-AutoNav (10 stars, last pushed 4mo ago), licensed MIT. It adds 41 tokens to every session and 1,748 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 2026-08-31.