ferrox-forensics

ferrox-forensics is a skill for Claude Code from FerroxLabs/ferrox-factory. It costs 25 tokens per session (503 once invoked), scanned A, a copy of gsd-forensics, MIT.

A post-mortem investigation workflow for finding out why an automated development process failed, stalled, or behaved unexpectedly.

In plain words
What is it for?
It helps inspect workflow failures, write a forensic report, and identify actionable follow-up issues.
Why use it?
It turns scattered evidence about crashes, missing files, or abandoned work into an organized explanation.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: reads .claude/ paths.

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

Good fit It helps inspect workflow failures, write a forensic report, and identify actionable…

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ferroxlabs/ferrox-factory/ferrox-forensics
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 FerroxLabs/ferrox-factory --skill ferrox-forensics
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-forensics

README.md
[![agentmods](https://agentmods.dev/badge/skills/ferroxlabs/ferrox-factory/ferrox-forensics.svg)](https://agentmods.dev/skills/ferroxlabs/ferrox-factory/ferrox-forensics)
Your own site
<a href="https://agentmods.dev/skills/ferroxlabs/ferrox-factory/ferrox-forensics"><img src="https://agentmods.dev/badge/skills/ferroxlabs/ferrox-factory/ferrox-forensics.svg" alt="Measured on agentmods" height="20"></a>
Per session 25 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 503 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.
Origin 91% copy Near-identical to another mod 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 $0.00025 $0.00503
Opus 5 $0.00013 $0.00251
Sonnet 5 $0.00005 $0.00101
Haiku 4.5 $0.00003 $0.00050

Measured 3d ago against content hash 5a0e12d04684, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

ferrox-forensics 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 3d 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

This is a copy

91% identical to gsd-forensics — 8 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/ferrox-forensics/SKILL.md · 57 lines

What it actually says

Purpose: Diagnose failed or stuck workflows so the user can understand root cause and take corrective action. Output: Forensic report saved to .planning/forensics/, presented inline, with optional issue creation.

<execution_context> @~/.claude/ferrox-core/workflows/forensics.md </execution_context>

User input:

  • Problem description: $ARGUMENTS (optional — will ask if not provided)

<success_criteria>

  • Evidence gathered from all available data sources
  • At least 4 anomaly types checked (stuck loop, missing artifacts, abandoned work, crash/interruption)
  • Structured forensic report written to .planning/forensics/report-{timestamp}.md
  • Report presented inline with findings, anomalies, and recommendations
  • Interactive investigation offered for deeper analysis
  • GitHub issue creation offered if actionable findings exist </success_criteria>

<critical_rules>

  • Read-only investigation: Do not modify project source files during forensics. Only write the forensic report and update STATE.md session tracking.
  • Redact sensitive data: Strip absolute paths, API keys, tokens from reports and issues.
  • Ground findings in evidence: Every anomaly must cite specific commits, files, or state data.
  • No speculation without evidence: If data is insufficient, say so — do not fabricate root causes. </critical_rules>
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. 3d ago First seen · 57 lines · 25 tokens per session scan A 5a0e12d04684

Subscribe to this mod's changes

ferrox-forensics is a skill published in the GitHub repository FerroxLabs/ferrox-factory (22 stars, last pushed 1mo ago), licensed MIT. It adds 25 tokens to every session and 503 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 91% identical to gsd-forensics, differing in 8 lines, and is treated as a copy.

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