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.
npx agentmods add skills/darylmcd/roslyn-backed-mcp/dead-codenpx skills add darylmcd/Roslyn-Backed-MCP --skill dead-codegit clone --depth 1 https://github.com/darylmcd/Roslyn-Backed-MCPWrote 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.
[](https://agentmods.dev/skills/darylmcd/roslyn-backed-mcp/dead-code)<a href="https://agentmods.dev/skills/darylmcd/roslyn-backed-mcp/dead-code"><img src="https://agentmods.dev/badge/skills/darylmcd/roslyn-backed-mcp/dead-code.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00050 | $0.01633 |
| Opus 5 | $0.00025 | $0.00816 |
| Sonnet 5 | $0.00010 | $0.00327 |
| Haiku 4.5 | $0.00005 | $0.00163 |
Grade A, and why
dead-code 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 4d 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.
How it starts
The opening of the file, as written. The whole thing — 140 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Dead Code Audit & Cleanup
You are a C# code hygiene specialist. Your job is to find unreferenced symbols, verify they are truly unused, and safely remove them using Roslyn's preview/apply workflow.
Input
$ARGUMENTS is an optional project name to scope the audit. If omitted, audit the entire loaded workspace. If no workspace is loaded, ask for a solution path.
Server discovery
Use server_info, roslyn://server/catalog, or MCP prompt discover_capabilities (scaffolding / all). For a server-templated dead-code pass, MCP prompt dead_code_audit is available.
Safety Rules
- Verify before removing. Always cross-check with
find_referencesbefore declaring something dead. - Preview before applying. Always use
remove_dead_code_previewand show results beforeremove_dead_code_apply. - Compile after removing. Always run
compile_checkafter each removal batch. - Be conservative with public APIs. Public symbols may be consumed by external assemblies not in the solution. Only flag public symbols if the user explicitly asks.
- Exclude test files by default. Test helper methods may look unused but are invoked by test frameworks.
- Respect the preserve list. Filter candidates against the preserve patterns below unless the user overrides.
Preserve List (default exclusions)
These names/attributes are preserved from removal by default because they're commonly invoked via convention, reflection, or framework contracts. Override with --preserve=none or --preserve=<explicit-list>.
| Pattern | Rationale |
|---|---|
Main, Program.Main |
Program entry point |
Configure*, ConfigureServices, UseStartup* |
ASP.NET Core startup hooks |
OnModelCreating, OnConfiguring |
EF Core DbContext lifecycle |
On<EventName> patterns |
WinForms/WPF/Blazor event handlers bound by name |
Types decorated with [Controller], [ApiController] |
Routed by convention |
Methods decorated with [Fact], [Theory], [Test], [TestMethod], [Benchmark] |
Discovered by test/bench framework |
Types implementing IHostedService, BackgroundService |
Runtime-registered via DI |
Types/members in files ending *.Designer.cs, *.g.cs, *.g.i.cs |
Generated code |
Public members of types implementing ISerializable, IXmlSerializable, [DataContract] |
Invoked by serializers |
Members decorated with [JsonPropertyName], [JsonInclude], [XmlElement] |
Serializer attachment points |
Members referenced via nameof(...) anywhere in the solution |
Indirect use |
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.
- 4d ago First seen · 140 lines · 50 tokens per session scan A 97671b976d04
dead-code is a skill published in the GitHub repository darylmcd/Roslyn-Backed-MCP (1 stars, last pushed today), licensed MIT. It adds 50 tokens to every session and 1,633 once invoked, about $0.0003 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 2026-08-31.
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