multi-stage-cascade-extraction

multi-stage-cascade-extraction is a skill for Claude Code, Codex from yogsoth-ai/de-anthropocentric-research-engine. It costs 116 tokens per session (561 once invoked), scanned A, original, Apache-2.0.

A multi-step process for extracting mentions, shared references, and relationships from the full text of a research paper. It supports research datasets and methods such as SciERC, SciREX, and the NLP Contribution Graph.

In plain words
What is it for?
Use it to find entities and their relationships in complete scientific papers, including links between research problems, methods, results, and contributions.
Why use it?
It handles relationships that span multiple sentences, which ordinary sentence-by-sentence extraction can miss, while preserving intermediate results from each stage.

Skill for Claude CodeCodex

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

Good fit Use it to find entities and their relationships in complete scientific papers, including links between research problems, methods, results, and contributions.

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Install with agentmods
npx agentmods add skills/yogsoth-ai/de-anthropocentric-research-engine/multi-stage-cascade-extraction
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 multi-stage-cascade-extraction
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 multi-stage-cascade-extraction

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/yogsoth-ai/de-anthropocentric-research-engine/multi-stage-cascade-extraction"><img src="https://agentmods.dev/badge/skills/yogsoth-ai/de-anthropocentric-research-engine/multi-stage-cascade-extraction.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 116 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 561 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 pass 7 Sept 2026
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 $0.00116 $0.00561
Opus 5 $0.00058 $0.00280
Sonnet 5 $0.00023 $0.00112
Haiku 4.5 $0.00012 $0.00056

Measured 11d ago against content hash dac09a83d47e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

multi-stage-cascade-extraction 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 11d 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.

paper-reading/skills/multi-stage-cascade-extraction/SKILL.md · 42 lines

What it actually says

Multi-Stage Cascade Extraction

Mention detection → coreference clustering → [saliency] → relation extraction, all stages consuming the full prior stage's output. Covers SciERC/SciREX/NLP-Contribution-Graph — three methods with different stage counts but the same "consume-the-full-prior-layer" structure (graph correction S6: merged under the unifying rule "same action-sequence length → mergeable via parameterization").

Execution

Subagent — spawned via spawn-agent skill.

Why Direct From paper-fetch, Not Through unit-segmentation

This cascade discovers its own mention spans over the whole document rather than consuming pre-segmented sentence/clause units — sentence-level segmentation is the wrong granularity for a method whose relations are 99% cross-sentence (SciREX's own reported figure). This is a deliberate graph choice, not an oversight — see spec §5's flagged note before "fixing" this dependency.

Errors Compound Stage-Over-Stage

NLP Contribution Graph's own reported consistency figures fall from stage to stage (67.92% → 41.82% → 22.31%) — this is the shared risk profile of this whole method family, not specific to one method. Producing every stage's intermediate output (not just the final relations) is what makes this compounding visible and debuggable.

Available SOPs

SOP When to use
spawn-agent Spawn a customized CC subagent with full MCP tool access.
Files

What ships with it

2 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. 11d ago First seen · 42 lines · 116 tokens per session scan A dac09a83d47e

Subscribe to this mod's changes

multi-stage-cascade-extraction is a skill published in the GitHub repository yogsoth-ai/de-anthropocentric-research-engine (449 stars, last pushed yesterday), licensed Apache-2.0. It adds 116 tokens to every session and 561 once invoked, about $0.0006 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 2026-08-30.

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