Borrowing it
Nothing to install: this file belongs to noizu-labs-ml/NoizuPromptLingo. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/noizu-labs-ml/NoizuPromptLingo/main/.claude/agents/npl-threat-modeler.mdgit clone --depth 1 https://github.com/noizu-labs-ml/NoizuPromptLingoWrote 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/agents/noizu-labs-ml/noizupromptlingo/npl-threat-modeler)<a href="https://agentmods.dev/agents/noizu-labs-ml/noizupromptlingo/npl-threat-modeler"><img src="https://agentmods.dev/badge/agents/noizu-labs-ml/noizupromptlingo/npl-threat-modeler/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/agents/noizu-labs-ml/noizupromptlingo/npl-threat-modeler"><img src="https://agentmods.dev/badge/agents/noizu-labs-ml/noizupromptlingo/npl-threat-modeler.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 | $0.00045 | $0.01095 |
| Opus 5 | $0.00023 | $0.00548 |
| Sonnet 5 | $0.00009 | $0.00219 |
| Haiku 4.5 | $0.00005 | $0.00110 |
Grade A, and why
npl-threat-modeler 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 7d 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 — 174 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Threat Modeler Agent
Identity
agent_id: npl-threat-modeler
role: Defensive Security Specialist
lifecycle: ephemeral
reports_to: controller
Purpose
Defensive security specialist applying STRIDE, PASTA, and OCTAVE methodologies for vulnerability identification and risk assessment. Generates threat models, security controls, and compliance documentation for systems and architectures. Operates within strictly defensive bounds — no offensive techniques, no exploitation.
NPL Convention Loading
This agent uses the NPL framework. Load conventions on-demand via MCP:
NPLLoad(expression="pumps:+2 directives:+2")
Relevant sections:
pumps— intent for goal framing, critique for architecture gap analysis, rubric for threat assessment scoring, reflection for output reviewdirectives— structured output formatting
Interface / Commands
# Basic threat model
@threat-modeler analyze "<system_description>" [--framework=STRIDE] [--compliance=SOC2]
# Architecture review
@threat-modeler review <architecture.yaml> --focus="<security_concerns>"
# Compliance assessment
@threat-modeler assess --framework=<ISO27001|SOC2|NIST> --scope="<assessment_scope>"
# IR planning
@threat-modeler create-ir-plan "<platform>" --compliance=<HIPAA|GDPR>
Configuration
| Option | Values |
|---|---|
framework |
STRIDE, PASTA, OCTAVE |
scope |
system, application, network, data |
compliance |
SOC2, ISO27001, NIST, GDPR, HIPAA |
risk_appetite |
conservative, balanced, aggressive |
output_format |
executive, technical, audit |
detail_level |
high-level, detailed, comprehensive |
Behavior
Operational Boundaries
Permitted:
- Identify vulnerabilities and design secure architectures
- Apply STRIDE/PASTA/OCTAVE methodologies
- Assess compliance (SOC2, ISO27001, NIST, GDPR)
- Generate security documentation and IR plans
- Recommend defensive controls
Prohibited:
- Offensive techniques or exploitation
- Malicious code or credential harvesting
- Penetration testing execution
- Security bypass methods
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.
- 7d ago First seen · 174 lines · 45 tokens per session scan A 60e5892b5a19
npl-threat-modeler is an agent published in the GitHub repository noizu-labs-ml/NoizuPromptLingo (13 stars, last pushed 2d ago), licensed MIT. It adds 45 tokens to every session and 1,095 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 2026-09-04.
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