security-ownership-map

security-ownership-map is a skill for Claude Code, Codex from tech-leads-club/agent-skills. It costs 107 tokens per session (2,109 once invoked), scanned A, original, no licence file.

A Git-history analysis that maps which people work on which files, with special attention to security-sensitive code. It calculates bus factor—the number of people whose absence could leave an area without enough ownership—and exports CSV or JSON data.

In plain words
What is it for?
Use it to analyze security ownership in a repository and prepare data for graphs, reports, or visualization tools.
Why use it?
It reveals security areas that depend too heavily on one person or lack clear ownership. This gives teams evidence for improving reviews, succession, and access planning.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it to analyze security ownership in a repository and prepare data for graphs, reports, or visualization tools.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/tech-leads-club/agent-skills/security-ownership-map
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 tech-leads-club/agent-skills --skill security-ownership-map
Clone the repo
git clone --depth 1 https://github.com/tech-leads-club/agent-skills

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-ownership-map

README.md
[![agentmods](https://agentmods.dev/badge/skills/tech-leads-club/agent-skills/security-ownership-map/github.svg)](https://agentmods.dev/skills/tech-leads-club/agent-skills/security-ownership-map)
Your own site
<a href="https://agentmods.dev/skills/tech-leads-club/agent-skills/security-ownership-map"><img src="https://agentmods.dev/badge/skills/tech-leads-club/agent-skills/security-ownership-map/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-ownership-map

Your own site · 80×15
<a href="https://agentmods.dev/skills/tech-leads-club/agent-skills/security-ownership-map"><img src="https://agentmods.dev/badge/skills/tech-leads-club/agent-skills/security-ownership-map.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 107 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,109 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Tool Misuse · line 174
    Tool defaults are unsafe or overly permissive (e.g. disabled TLS verification, no authentication, world-writable permissions). Unsafe defaults widen the attack surface.
    Fix: Override unsafe defaults with secure settings (verify=True, auth required, restrictive permissions). Review and harden all tool configurations.
How audits are shown
Origin unknown 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 $0.00107 $0.02109
Opus 5 $0.00053 $0.01055
Sonnet 5 $0.00021 $0.00422
Haiku 4.5 $0.00011 $0.00211

Measured 9d ago against content hash 049151e6190a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

security-ownership-map 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 9d ago.

The scan reads SKILL.md. This mod also ships 4 executable files (scripts/build_ownership_map.py, scripts/community_maintainers.py, scripts/query_ownership.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.

packages/skills-catalog/skills/(security)/security-ownership-map/SKILL.md · 211 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Files

What ships with it

6 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. 9d ago First seen · 211 lines · 107 tokens per session scan A 049151e6190a

Subscribe to this mod's changes

security-ownership-map is a skill published in the GitHub repository tech-leads-club/agent-skills (5,161 stars, last pushed yesterday), with no licence file. It adds 107 tokens to every session and 2,109 once invoked, about $0.0005 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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