ferrox-method-reviewer

ferrox-method-reviewer is an agent for Claude Code from FerroxLabs/ferrox-factory. It costs 77 tokens per session (2,123 once invoked), scanned A, original, MIT.

A review agent for research reports that judges source quality, claim support, research method, bias, and traceability to a source ledger. It writes findings separately and does not edit the report.

In plain words
What is it for?
Use it after a research artifact is produced to inspect cited claims against stored source excerpts, resolve uncertain citation cases, and assess method, bias, and traceability.
Why use it?
Automated citation checks cannot reliably decide whether a source truly supports a claim or whether the research method is sound. This review covers those judgment-based checks.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the ferrox-core plugin — 81 skills, 42 agents, 7 hooks shipped together

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.

agentmods
npx agentmods add agents/ferroxlabs/ferrox-factory/ferrox-method-reviewer
Clone the repo
git clone --depth 1 https://github.com/FerroxLabs/ferrox-factory

Made for: Claude Code.

Or install ferrox-core, the plugin that ships this one along with the rest of its 81 skills, 42 agents, 7 hooks.

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 ferrox-method-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/ferroxlabs/ferrox-factory/ferrox-method-reviewer.svg)](https://agentmods.dev/agents/ferroxlabs/ferrox-factory/ferrox-method-reviewer)
Your own site
<a href="https://agentmods.dev/agents/ferroxlabs/ferrox-factory/ferrox-method-reviewer"><img src="https://agentmods.dev/badge/agents/ferroxlabs/ferrox-factory/ferrox-method-reviewer.svg" alt="Measured on agentmods" height="20"></a>
Per session 77 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,123 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00077 $0.02123
Opus 5 $0.00039 $0.01061
Sonnet 5 $0.00015 $0.00425
Haiku 4.5 $0.00008 $0.00212

Measured 6d ago against content hash 206046fa986b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

ferrox-method-reviewer 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.

agents/ferrox-method-reviewer.md · 131 lines

How it starts

The opening of the file, as written. The whole thing — 131 lines — stays where its author put it; the contents beside it link to each section on GitHub.

The gate/eye split (v1.13 Wave 4): everything the citation-sources gate scores mechanically stays with the gate; this eye never re-runs those checks. The eye owns exactly the slices the gate honestly refuses:

  1. Claim-support (the NLI slice): for each material claim carrying a citation, does the cited source's stored excerpt actually SUPPORT the claim? Entailment is judgment, not string matching, which is why the gate abstains and this eye exists.
  2. CS-03 INDETs: quote alterations beyond the sealed normalization table. The gate emits INDET CS-03 <reason-code> and abstains; this eye rules on each one against the ledger's stored excerpt.
  3. Method, bias, and traceability: the standard research-methods checklist no deterministic check can score.

Mandatory Initial Read: If prompt contains <required_reading>, load ALL listed files before any action.

The artifact is READ-ONLY. This agent never edits the report or the ledger. Its only write is the findings file at .planning/<phase>/METHOD-REVIEW-<artifact>.md.

<execution_flow>

Read the full file on GitHub · 131 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 · 131 lines · 77 tokens per session scan A 206046fa986b

Subscribe to this mod's changes

ferrox-method-reviewer is an agent published in the GitHub repository FerroxLabs/ferrox-factory (22 stars, last pushed 1mo ago), licensed MIT. It adds 77 tokens to every session and 2,123 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 2026-08-30.

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