Getting it into your agent
There is no command for this one: it runs only inside a plugin, and the catalogue could not identify which plugin ships it. The source is linked below.
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.
[](https://agentmods.dev/commands/frankbolero/dotnet-dump-mcp/gcroot)<a href="https://agentmods.dev/commands/frankbolero/dotnet-dump-mcp/gcroot"><img src="https://agentmods.dev/badge/commands/frankbolero/dotnet-dump-mcp/gcroot.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 5.1 | $0.00000 | $0.00362 |
| Opus 5 | $0.00000 | $0.00181 |
| Sonnet 5 | $0.00000 | $0.00072 |
| Haiku 4.5 | $0.00000 | $0.00036 |
Grade A, and why
gcroot scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
gcroot
Displays information about references (or roots) to a specified object. It helps in identifying what is keeping an object alive in the managed heap.
Known defect: the search is bounded at 2,000,000 visited nodes and a truncated search is currently reported as "no GC root path found" — i.e. as if the object were unrooted. On heaps above ~2M objects this can be wrong. See GCROOT_TRUNCATION.md; the fix makes the bound settable (
--max-nodes,0= unlimited) and always reports truncation.
Usage
gcroot <address>
Example
> gcroot 000001D0F90F34E0
ClrMD Implementation
Use GCRoot helper class or manually walk the heap references. Modern ClrMD provides EnumerateGCRoots.
using Microsoft.Diagnostics.Runtime;
// ... (Setup DataTarget and ClrRuntime)
ulong targetAddress = 0x12345678;
// Note: GCRooting can be complex.
// You often need to build a reference graph or use the GCRoot class if available in your version.
// A simple approach is finding roots pointing to it:
foreach (ClrRoot root in runtime.Heap.EnumerateGCRoots())
{
if (root.Object == targetAddress)
{
Console.WriteLine($"Root found: {root.Kind} at {root.Address:X}");
}
}
Link: GCRoot.cs
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.
- 6d ago First seen · 41 lines · 0 tokens per session scan A c5d8dbbcdabd
gcroot is a command published in the GitHub repository frankbolero/dotnet-dump-mcp (12 stars, last pushed 11d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 362 tokens. 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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ship-changes
../../.ai/prompts/ship-changes.prompt.md.
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