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 skills add jcucci/dotnet-sherlock-mcp --skill sherlockgit clone --depth 1 https://github.com/jcucci/dotnet-sherlock-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/jcucci/dotnet-sherlock-mcp/sherlock)<a href="https://agentmods.dev/skills/jcucci/dotnet-sherlock-mcp/sherlock"><img src="https://agentmods.dev/badge/skills/jcucci/dotnet-sherlock-mcp/sherlock/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.
<a href="https://agentmods.dev/skills/jcucci/dotnet-sherlock-mcp/sherlock"><img src="https://agentmods.dev/badge/skills/jcucci/dotnet-sherlock-mcp/sherlock.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00083 | $0.01468 |
| Opus 5.5 | $0.00033 | $0.00587 |
| Sonnet 5.5 | $0.00017 | $0.00294 |
| Haiku 4.5 | $0.00008 | $0.00147 |
Grade A, and why
sherlock 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 8d 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 — 87 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Sherlock: .NET assembly introspection
Sherlock reads real assemblies (your build output or the NuGet cache) via metadata-only reflection, so its answers match the exact version the project compiles against. Reach for it whenever correctness depends on an API's actual shape.
Tool names are snake_case; argument names are camelCase.
1. Locate the assembly
Every tool takes an assembly path. Find it rather than guessing:
find_assembly_by_class_name- you know a type name but not which DLL holds it.find_assembly_by_nuget_package- resolve a package (and version) from the local NuGet cache.get_project_output_paths- the build output DLL of a.csproj.find_assembly_by_file_name- you know the DLL name.
Never hardcode bin/Debug/<tfm>/...; the target framework and configuration vary.
When you will make several calls against the same assembly, call open_assembly once and pass the returned assemblyHandle (a short asm_… id) instead of assemblyPath. The handle also carries any additionalAssemblies you opened it with.
2. Orient cheaply
get_assembly_info- identity, target framework, references.search_members- you know a member name fragment but not its declaring type (narrow withmemberKinds).get_types_from_assembly- browse types, paginated.
3. Drill in, narrow to wide
get_type_info- kind, base type, interfaces, accessibility, member counts.get_type_membersfiltered bykinds,nameContainsorhasAttributeContains. The defaultsummaryprojection returns{ kind, name, signature }, and the C# signature already carries return type, parameters and modifiers.- Re-call with
projection='full'only for the few members where you need structured parameters, attributes or modifier flags. analyze_methodfor one method's overloads;get_xml_docs_for_type/get_xml_docs_for_memberfor documentation;get_type_hierarchyfor the inheritance chain (format='mermaid'for a class diagram).
Start with a small maxItems and page with continuationToken instead of fetching everything.
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.
- 8d ago Changed · +17 lines 9037411225d6
- 9d ago Changed · +3 lines d0c177dcbb28
- 10d ago First seen · 67 lines · 83 tokens per session scan A 3621e744832f
sherlock is a skill published in the GitHub repository jcucci/dotnet-sherlock-mcp (8 stars, last pushed 7d ago), licensed MIT. It adds 83 tokens to every session and 1,468 once invoked, about $0.0003 per session on Opus 5.5. 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 2026-10-02.
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