ilspy-decompile

ilspy-decompile is a skill for Claude Code, Codex from iceman1001/awesome_rfid_claude_skills. It costs 219 tokens per session (2,527 once invoked), scanned B, original, no licence file.

A skill that uses ilspycmd to turn .NET files such as DLLs, EXEs, and NuGet packages into readable C# code before they are analyzed.

In plain words
What is it for?
Use it to read, explain, audit, debug, reverse-engineer, or extract information from supported .NET files.
Why use it?
Compiled .NET files do not normally show their original source clearly, so decompilation makes their behavior easier to inspect.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it to read, explain, audit, debug, reverse-engineer, or extract information from supported .NET files.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/iceman1001/awesome_rfid_claude_skills/ilspy-decompile
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 iceman1001/awesome_rfid_claude_skills --skill ilspy-decompile
Clone the repo
git clone --depth 1 https://github.com/iceman1001/awesome_rfid_claude_skills

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 ilspy-decompile

README.md
[![agentmods](https://agentmods.dev/badge/skills/iceman1001/awesome_rfid_claude_skills/ilspy-decompile/github.svg)](https://agentmods.dev/skills/iceman1001/awesome_rfid_claude_skills/ilspy-decompile)
Your own site
<a href="https://agentmods.dev/skills/iceman1001/awesome_rfid_claude_skills/ilspy-decompile"><img src="https://agentmods.dev/badge/skills/iceman1001/awesome_rfid_claude_skills/ilspy-decompile/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 ilspy-decompile

Your own site · 80×15
<a href="https://agentmods.dev/skills/iceman1001/awesome_rfid_claude_skills/ilspy-decompile"><img src="https://agentmods.dev/badge/skills/iceman1001/awesome_rfid_claude_skills/ilspy-decompile.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 219 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,527 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00219 $0.02527
Opus 5 $0.00110 $0.01264
Sonnet 5 $0.00044 $0.00505
Haiku 4.5 $0.00022 $0.00253

Measured 12d ago against content hash a4cb4a4808a1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade B, and why

ilspy-decompile scanned grade B with 2 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 12d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (run_ilspy.sh), 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.

Strips warnings and disclaimerslowAnti-refusal

Omitting safety caveats hides risk from the user and is a common jailbreak preamble.

Pass `-r <dir>` so ilspycmd can resolve the sibling DLLs without warnings.

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Harvests environment variablesmediumData exfiltration

Enumerating or grepping the environment for keys collects credentials unrelated to what the mod says it does.

description: Run the ilspycmd CLI on .NET assemblies to decompile them to readable C# BEFORE reading or analyzing them. Use this skill any time the user provides a `.dll`, `.exe`, `.netmodule`, `.winmd`, or `.nupkg` file

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

ilspy-decompile/SKILL.md · 184 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 12d ago First seen · 184 lines · 219 tokens per session scan B a4cb4a4808a1

Subscribe to this mod's changes

ilspy-decompile is a skill published in the GitHub repository iceman1001/awesome_rfid_claude_skills (9 stars, last pushed 2mo ago), with no licence file. It adds 219 tokens to every session and 2,527 once invoked, about $0.0011 per session on Opus 5. A static security scan graded it B with 2 findings (strips warnings and disclaimers, harvests environment variables). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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