building-a-sample-management-workflow

building-a-sample-management-workflow is a skill for Claude Code, Codex from meltedinhex/analyst-ai-pack. It costs 72 tokens per session (784 once invoked), scanned A, original, Apache-2.0.

A controlled system for storing and tracking malware samples using their SHA-256 fingerprints, protected archives, metadata, and handling history.

In plain words
What is it for?
Use it to intake samples, assign hash-based locations, attach source and case details, preserve chain of custody, and keep samples isolated and non-executable at rest.
Why use it?
It prevents duplicate files, misleading attacker-chosen filenames, unsafe storage, and loss of information about where each sample came from.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to intake samples, assign hash-based locations, attach source and case details, preserve chain of custody, and keep samples isolated and non-executable at rest.

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Install with agentmods
npx agentmods add skills/meltedinhex/analyst-ai-pack/building-a-sample-management-workflow
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 meltedinhex/analyst-ai-pack --skill building-a-sample-management-workflow
Clone the repo
git clone --depth 1 https://github.com/meltedinhex/analyst-ai-pack

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 building-a-sample-management-workflow

README.md
[![agentmods](https://agentmods.dev/badge/skills/meltedinhex/analyst-ai-pack/building-a-sample-management-workflow/github.svg)](https://agentmods.dev/skills/meltedinhex/analyst-ai-pack/building-a-sample-management-workflow)
Your own site
<a href="https://agentmods.dev/skills/meltedinhex/analyst-ai-pack/building-a-sample-management-workflow"><img src="https://agentmods.dev/badge/skills/meltedinhex/analyst-ai-pack/building-a-sample-management-workflow/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 building-a-sample-management-workflow

Your own site · 80×15
<a href="https://agentmods.dev/skills/meltedinhex/analyst-ai-pack/building-a-sample-management-workflow"><img src="https://agentmods.dev/badge/skills/meltedinhex/analyst-ai-pack/building-a-sample-management-workflow.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 72 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 784 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 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 $0.00072 $0.00784
Opus 5 $0.00036 $0.00392
Sonnet 5 $0.00014 $0.00157
Haiku 4.5 $0.00007 $0.00078

Measured 9d ago against content hash fb84ed3e1781, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

building-a-sample-management-workflow 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 9d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/analyst.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/building-a-sample-management-workflow/SKILL.md · 95 lines

How it starts

The opening of the file, as written. The whole thing — 95 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Building a Sample Management Workflow

When to Use

  • You are accumulating malware samples and need a repeatable, safe way to store and find them.
  • You need metadata and provenance (source, date, case) attached to every sample.
  • You want content-addressed storage so the same sample is never duplicated or misnamed.

Do not use original filenames or loose folders as the organizing principle — names are attacker-controlled and collide; address samples by hash.

Prerequisites

  • The hashing skill for content addressing; encrypted/password-protected archive tooling.
  • A defined storage location inside the isolated lab.

Safety & Handling

  • Store every sample inside a password-protected archive (commonly infected) so it cannot auto-execute or be scanned/quarantined by host AV.
  • Strip the executable bit / neutralize the extension at rest; restore only inside the lab.

Workflow

Step 1: Content-address on intake

On receipt, compute SHA-256 and store the sample under a path derived from its hash (e.g., samples/ab/cd/<sha256>), preventing duplicates and name collisions.

python scripts/analyst.py intake sample.bin --source "phishing-case-42" --store ./samples

Step 2: Record metadata

Write a metadata record per sample: hashes, original name, source, intake date, case ID, file type, and analyst — kept next to the sample or in an index.

Step 3: Archive safely

Wrap the sample in a password-protected archive; keep the inert copy out of host AV's reach and the metadata in plaintext for searchability.

Step 4: Maintain chain of custody

Append-only log each access/action (who, when, what) so the sample's handling is auditable.

Step 5: Index and search

Build a searchable index over metadata so samples can be found by hash, family, source, or case without touching the raw bytes.

Validation

  • The same sample always lands at the same hash-derived path (idempotent intake).
  • Every sample has a complete metadata record and an access log entry.
  • Samples are stored password-protected; metadata is searchable in plaintext.

Read the full file on GitHub · 95 lines

Files

What ships with it

3 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. 9d ago First seen · 95 lines · 72 tokens per session scan A fb84ed3e1781

Subscribe to this mod's changes

building-a-sample-management-workflow is a skill published in the GitHub repository meltedinhex/analyst-ai-pack (22 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 72 tokens to every session and 784 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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