senior-security

senior-security is a skill for Claude Code, Codex from punkadillo/figma-code-composer. It costs 74 tokens per session (3,507 once invoked), scanned A, original, MIT.

A security engineering toolkit for finding threats, weaknesses, and unsafe design choices in software. It covers threat modeling, secure architecture, code review, penetration testing, and incident response.

In plain words
What is it for?
Use it to map threats, review system designs and code, assess vulnerabilities, plan security tests, and document incident response work.
Why use it?
It helps identify security risks before they become incidents and gives developers a structured way to assess and reduce them.

Skill for Claude CodeCodex

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

Good fit Use it to map threats, review system designs and code, assess vulnerabilities, plan security tests, and document incident response work.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/punkadillo/figma-code-composer/senior-security
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 punkadillo/figma-code-composer --skill senior-security
Clone the repo
git clone --depth 1 https://github.com/punkadillo/figma-code-composer

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 senior-security

README.md
[![agentmods](https://agentmods.dev/badge/skills/punkadillo/figma-code-composer/senior-security.svg)](https://agentmods.dev/skills/punkadillo/figma-code-composer/senior-security)
Your own site
<a href="https://agentmods.dev/skills/punkadillo/figma-code-composer/senior-security"><img src="https://agentmods.dev/badge/skills/punkadillo/figma-code-composer/senior-security.svg" alt="Measured on agentmods" height="20"></a>
Per session 74 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,507 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 $0.00074 $0.03507
Opus 5 $0.00037 $0.01754
Sonnet 5 $0.00015 $0.00701
Haiku 4.5 $0.00007 $0.00351

Measured 4d ago against content hash cdbf580f4821, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

senior-security 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 4d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/secret_scanner.py, scripts/threat_modeler.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

.figma-pipeline/skills/senior-security/SKILL.md · 445 lines

How it starts

The opening of the file, as written. The whole thing — 445 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Senior Security Engineer

Security engineering tools for threat modeling, vulnerability analysis, secure architecture design, and penetration testing.


Table of Contents


Threat Modeling Workflow

Identify and analyze security threats using STRIDE methodology.

Workflow: Conduct Threat Model

  1. Define system scope and boundaries:
    • Identify assets to protect
    • Map trust boundaries
    • Document data flows
  2. Create data flow diagram:
    • External entities (users, services)
    • Processes (application components)
    • Data stores (databases, caches)
    • Data flows (APIs, network connections)
  3. Apply STRIDE to each DFD element (see STRIDE per Element Matrix below)
  4. Score risks using DREAD:
    • Damage potential (1-10)
    • Reproducibility (1-10)
    • Exploitability (1-10)
    • Affected users (1-10)
    • Discoverability (1-10)
  5. Prioritize threats by risk score
  6. Define mitigations for each threat
  7. Document in threat model report
  8. Validation: All DFD elements analyzed; STRIDE applied; threats scored; mitigations mapped

STRIDE Threat Categories

Category Security Property Mitigation Focus
Spoofing Authentication MFA, certificates, strong auth
Tampering Integrity Signing, checksums, validation
Repudiation Non-repudiation Audit logs, digital signatures
Information Disclosure Confidentiality Encryption, access controls
Denial of Service Availability Rate limiting, redundancy
Elevation of Privilege Authorization RBAC, least privilege

Read the full file on GitHub · 445 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. 4d ago First seen · 445 lines · 74 tokens per session scan A cdbf580f4821

Subscribe to this mod's changes

senior-security is a skill published in the GitHub repository punkadillo/figma-code-composer (3 stars, last pushed 19d ago), licensed MIT. It adds 74 tokens to every session and 3,507 once invoked, about $0.0004 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.