assumption-cascade

assumption-cascade is a skill for Claude Code, Codex from yogsoth-ai/de-anthropocentric-research-engine. It costs 29 tokens per session (544 once invoked), scanned A, original, Apache-2.0.

A coordinated review that tests foundational assumptions first and traces how their failure spreads through dependent conclusions.

In plain words
What is it for?
Use it to enumerate assumptions, test root assumptions, follow cascade failures, and report the total impact.
Why use it?
It helps find failures that would affect many parts of a decision or analysis.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents.

Good fit Use it to enumerate assumptions, test root assumptions, follow cascade failures, and report the total impact.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/yogsoth-ai/de-anthropocentric-research-engine/assumption-cascade
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 yogsoth-ai/de-anthropocentric-research-engine --skill assumption-cascade
Clone the repo
git clone --depth 1 https://github.com/yogsoth-ai/de-anthropocentric-research-engine

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 assumption-cascade

README.md
[![agentmods](https://agentmods.dev/badge/skills/yogsoth-ai/de-anthropocentric-research-engine/assumption-cascade/github.svg)](https://agentmods.dev/skills/yogsoth-ai/de-anthropocentric-research-engine/assumption-cascade)
Your own site
<a href="https://agentmods.dev/skills/yogsoth-ai/de-anthropocentric-research-engine/assumption-cascade"><img src="https://agentmods.dev/badge/skills/yogsoth-ai/de-anthropocentric-research-engine/assumption-cascade/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 assumption-cascade

Your own site · 80×15
<a href="https://agentmods.dev/skills/yogsoth-ai/de-anthropocentric-research-engine/assumption-cascade"><img src="https://agentmods.dev/badge/skills/yogsoth-ai/de-anthropocentric-research-engine/assumption-cascade.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 544 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 high

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 →

  • high Prompt Injection · line 48
    Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
    Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
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 $0.00029 $0.00544
Opus 5 $0.00015 $0.00272
Sonnet 5 $0.00006 $0.00109
Haiku 4.5 $0.00003 $0.00054

Measured 6d ago against content hash 465f81fff0c5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

assumption-cascade 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 6d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

skills/assumption-cascade/SKILL.md · 63 lines

How it starts

The opening of the file, as written. The whole thing — 63 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Assumption Cascade Tactic

Attack assumptions at their roots and trace how failures propagate through dependency chains.

Orchestration

  1. key-assumptions-check surfaces all assumptions (explicit and implicit)
  2. assumption-cascade-tracer builds dependency graph (which assumptions depend on which)
  3. Root assumptions identified (those with no upstream dependencies)
  4. devils-advocacy constructs strongest attack against each root assumption
  5. probe-execution tests root assumptions — if root fails, trace downstream cascade
  6. assumption-cascade-tracer maps full cascade: which conclusions collapse if root fails
  7. finding-aggregation reports cascade paths and total impact scope

Subagents Dispatched

  • key-assumptions-check (1 call for enumeration)
  • assumption-cascade-tracer (2 calls: dependency build + cascade trace)
  • devils-advocacy (1 call per root assumption)
  • probe-execution (1 call per root attack)
  • finding-aggregation (1 call at end)

Termination Conditions

  • All root assumptions tested (budget permitting)
  • Cascade found that invalidates >50% of conclusions (critical finding)
  • All assumptions survive attack (artifact resilient at assumption level)
  • Budget exhausted (report partial coverage)

Available SOPs

Optional, no fixed order; the final leaf is always a sop.

SOP When to use
assumption-cascade-tracer Build assumption dependency graphs and trace cascade failures when root assumptions are invalidated.
devils-advocacy Construct the strongest possible counter-argument against a position, steelmanning the opposition before attacking.
finding-aggregation Aggregate, deduplicate, and classify findings from multiple probes into a coherent vulnerability report.
key-assumptions-check Military ACT: systematically enumerate all assumptions, classify by type, and evaluate evidence strength supporting each.
probe-execution Execute a single attack probe against an artifact, record the result with evidence and severity classification.

Read the full file on GitHub · 63 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. 6d ago First seen · 63 lines · 29 tokens per session scan A 465f81fff0c5

Subscribe to this mod's changes

assumption-cascade is a skill published in the GitHub repository yogsoth-ai/de-anthropocentric-research-engine (449 stars, last pushed today), licensed Apache-2.0. It adds 29 tokens to every session and 544 once invoked, about $0.0001 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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