ultrasafe-threat-model-lifecycle

ultrasafe-threat-model-lifecycle is a skill for Claude Code from SoliEstre/EstreGenesis. It costs 199 tokens per session (5,857 once invoked), scanned A, original, Apache-2.0.

A pre-release security check that simulates attackers using threat-modeling methods such as STRIDE and PASTA. It runs around actions that could make code public, such as publishing a package or creating a public release.

In plain words
What is it for?
Use it to review release plans, identify possible attack paths, consider how incidents should be handled, and assess when security issues should be disclosed.
Why use it?
It helps find security and incident-response risks before code is released. Its results are advisory reports and do not block publishing in the described version.

Skill for Claude Code

Written for Claude Code: PreToolUse hook event.

Part of the ultrasafe plugin — 8 skills shipped together

Good fit Use it to review release plans, identify possible attack paths, consider how incidents should be handled, and assess when security issues should be disclosed.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/soliestre/estregenesis/ultrasafe-threat-model-lifecycle
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 SoliEstre/EstreGenesis --skill ultrasafe-threat-model-lifecycle
Clone the repo
git clone --depth 1 https://github.com/SoliEstre/EstreGenesis

Made for: Claude Code.

Or install ultrasafe, the plugin that ships this one along with the rest of its 8 skills.

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 ultrasafe-threat-model-lifecycle

README.md
[![agentmods](https://agentmods.dev/badge/skills/soliestre/estregenesis/ultrasafe-threat-model-lifecycle/github.svg)](https://agentmods.dev/skills/soliestre/estregenesis/ultrasafe-threat-model-lifecycle)
Your own site
<a href="https://agentmods.dev/skills/soliestre/estregenesis/ultrasafe-threat-model-lifecycle"><img src="https://agentmods.dev/badge/skills/soliestre/estregenesis/ultrasafe-threat-model-lifecycle/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 ultrasafe-threat-model-lifecycle

Your own site · 80×15
<a href="https://agentmods.dev/skills/soliestre/estregenesis/ultrasafe-threat-model-lifecycle"><img src="https://agentmods.dev/badge/skills/soliestre/estregenesis/ultrasafe-threat-model-lifecycle.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 199 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,857 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 Excessive Agency · line 257
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
How audits are shown
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 $0.00199 $0.05857
Opus 5 $0.00100 $0.02929
Sonnet 5 $0.00040 $0.01171
Haiku 4.5 $0.00020 $0.00586

Measured 12d ago against content hash d1d098988d3d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

ultrasafe-threat-model-lifecycle scanned grade A with 1 finding 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 12d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

"reproduction_steps": "1. From an internal-network host (simulated lateral movement), curl billing-service directly with X-Original-User: <victim>. 2. Observe operations executed as victim. 3. Check siem-alert dashboard:
plugins/ultrasafe/skills/ultrasafe-threat-model-lifecycle/SKILL.md · 295 lines

How it starts

The opening of the file, as written. The whole thing — 295 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Threat Model / Lifecycle — Ultrasafe Attacker Skill

Role: Pre-release simulated penetration testing from the threat modeling (STRIDE/PASTA) + incident lifecycle + disclosure timing perspective. Tone: lifecycle-systematic — every claim binds to a named threat element + lifecycle phase + (where applicable) a disclosure-timing milestone. Output: Findings emitted via ULTRASAFE_FINDING A2A intent (Constellation §13.16) — advisory mode in v0.2.x (report-only; no publish blocking). Position in fan-out: 1 of 8 attacker agents. Sibling roles: ai-llm / web-api / supply-chain / crypto / social-eng / methodology-compliance / synthesizer-cross-axis. See Ultrasafe.md §15 for full topology.


§1 When to invoke

Run this skill when any of the following triggers fire:

  1. Fan-out dispatch: The orchestrator role (the main agent's Workflow fan-out + the ultrasafe_run_fanout MCP tool — Ultrasafe.md §14.1 role mapping) emits ULTRASAFE_RUN_FANOUT with role ∈ {threat-model-lifecycle, all}. This is the primary entry path during a release-gate cycle.
  2. PreToolUse hook trigger: ultrasafe-trigger.cjs matches a publish-equivalent command (npm publish, pip upload, twine upload, git push --tags <public-remote>, gh release create, container registry push to public registry, gcloud functions deploy --allow-unauthenticated). The 8-agent fan-out runs; this skill is one branch.
  3. Iteration boundary: An ULTRASAFE_ITERATION_BOUNDARY was just emitted with clean_signal=false AND prior iteration's threat-model-lifecycle findings included severity ∈ {critical, high}. Re-run for regression check on this axis.
  4. Inbound disclosure: SECURITY_DISCLOSURE_INTAKE arrives with a vulnerability disclosure timeline question (e.g. "is our 90-day public-disclosure clock correctly anchored?"), OR MPCVD_COORDINATION arrives needing multi-party timing review.
  5. Manual analyst invocation: User explicitly requests /ultrasafe threat-model or analogous (rare — primary path is automated fan-out).

Read the full file on GitHub · 295 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. 12d ago First seen · 295 lines · 199 tokens per session scan A d1d098988d3d

Subscribe to this mod's changes

ultrasafe-threat-model-lifecycle is a skill published in the GitHub repository SoliEstre/EstreGenesis (8 stars, last pushed 6d ago), licensed Apache-2.0. It adds 199 tokens to every session and 5,857 once invoked, about $0.0010 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Related

Other skills, from other repositories

update-agent-context

This skill should be used to keep CLAUDE.md, AGENTS.md, and the skill files themselves compact, current, and internally consistent. It runs in three phases: Phase 1 performs a one-time structural refactor of CLAUDE.md using a Karpathy-inspired behavioral scaffold and derives AGENTS.md from it by stripping Claude…

mostlyharmless-ai/watercooler · 203 tokens

watercooler-onboarding

Bootstrap Watercooler memory for a repository by inspecting local code, docs, CI, git history, and existing Watercooler threads, then writing a small set of durable, provenance-backed seed threads that future agents can query and extend. Use when entering a repo for the first time, seeding a repo with Watercooler…

mostlyharmless-ai/watercooler · 79 tokens

search-threads

Search threads with filters. Supports filters like role:planner, type:Decision, after:2024-01, thread:topic-name, status:OPEN.

mostlyharmless-ai/watercooler · 35 tokens

ppgp

Portable Persistent Goal Protocol for long-running coding-agent work. Use when starting, resuming, handing off, distilling, or closing a substantial software goal across long sessions, context compaction, agent replacement, or other Agent Skills-compatible coding-agent environments.

Fatboy-coder/ppgp · 53 tokens

watercooler-health

Check watercooler system health — MCP server, baseline graph (T1), git auth, GitHub rate limit, and daemons. Use when syncs break or anything in the watercooler stack behaves unexpectedly.

mostlyharmless-ai/watercooler · 49 tokens

recall

Recall project context or answer questions about history and decisions. Use before starting work, when investigating unfamiliar code, or asking "What was decided about X?" / "Why did we choose Y?".

mostlyharmless-ai/watercooler · 41 tokens