What is find-INetworkServerService_IsServerRunning?

An IDA Pro MCP fallback workflow for finding the IsServerRunning virtual function in Counter-Strike 2 engine binaries. It begins with the related ProcessNetworking function and platform-specific reference YAML.

Use it to locate IsServerRunning in engine2.dll or libengine2.so for the relevant game version and platform.

It recovers the function when the normal preprocessor script fails or the binary's structure has moved.

find-INetworkServerService_IsServerRunning

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 HLND2T/CS2_VibeSignatures --skill find-inetworkserverservice_isserverrunning

Clone the repo

git clone --depth 1 https://github.com/HLND2T/CS2_VibeSignatures

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/hlnd2t/cs2_vibesignatures/find-inetworkserverservice_isserverrunning/github.svg)](https://agentmods.dev/skills/hlnd2t/cs2_vibesignatures/find-inetworkserverservice_isserverrunning)

Your own site

<a href="https://agentmods.dev/skills/hlnd2t/cs2_vibesignatures/find-inetworkserverservice_isserverrunning"><img src="https://agentmods.dev/badge/skills/hlnd2t/cs2_vibesignatures/find-inetworkserverservice_isserverrunning/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/hlnd2t/cs2_vibesignatures/find-inetworkserverservice_isserverrunning"><img src="https://agentmods.dev/badge/skills/hlnd2t/cs2_vibesignatures/find-inetworkserverservice_isserverrunning.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 133 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,091 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. Third-party audits

NVIDIA SkillSpector pass 7 Sept 2026

How audits are shown

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.

Model	Per session	Once invoked
Fable 5.1	$0.00133	$0.01091
Opus 5.5	$0.00053	$0.00436
Sonnet 5.5	$0.00027	$0.00218
Haiku 4.5	$0.00013	$0.00109

Measured 20d ago against content hash 6e727025ad96, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

find-INetworkServerService_IsServerRunning 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 20d 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.

.claude/skills/find-INetworkServerService_IsServerRunning/SKILL.md · 88 lines

How it starts

The opening of the file, as written. The whole thing — 88 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Find INetworkServerService_IsServerRunning (final-guarantee fallback)

Recover the virtual function INetworkServerService::IsServerRunning in CS2 engine2.dll / libengine2.so using IDA Pro MCP tools. This is the Agent fallback for the find-INetworkServerService_IsServerRunning skill: it runs only when the preprocessor script returned failure (almost always a transient LLM error, or the predecessor's call structure moved).

Realworld Function References

Read the platform-relevant reference YAMLs before searching in IDA. They contain the annotated virtual call site (; 0x0E8/0x0F0 = ... = INetworkServerService_IsServerRunning). Treat their addresses as reference-build values only; verify against the current binary.

Windows baseline: ida_preprocessor_scripts/references/engine/CNetworkGameClientBase__ProcessNetworking.windows.yaml
Linux baseline: ida_preprocessor_scripts/references/engine/CNetworkGameClientBase__ProcessNetworking.linux.yaml

Step 1. Load and decompile the predecessor

ALWAYS Use SKILL /get-func-from-yaml with func_name=CNetworkGameClientBase__ProcessNetworking to obtain its func_va. If it returns an error, STOP and report to user (this fallback cannot run without the predecessor).

Decompile it:

mcp__ida-pro-mcp__decompile addr="<CNetworkGameClientBase__ProcessNetworking.func_va>"

Step 2. Locate the virtual call to the target

INetworkServerService::IsServerRunning(this) is an indirect virtual call on the global g_pNetworkServerService. Anchor by its semantic fingerprint, not a fixed offset:

It is the (single) call qword ptr [reg + <off>] where reg = *g_pNetworkServerService (load the vtable from the global, then call through it).
It returns a boolean (al) that is stored/tested to gate the per-tick client networking processing.

Reference build vtable offsets (verify, do not hardcode):

Windows: call qword ptr [rax+0E8h] -> vfunc_offset = 0xE8 (232), vfunc_index = 29
Linux: call qword ptr [rax+0F0h] -> vfunc_offset = 0xF0 (240), vfunc_index = 30

Read the full file on GitHub · 88 lines

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.

20d ago Changed · +4 lines 6e727025ad96
2mo ago First seen · 84 lines · 133 tokens per session scan A fb8a272cea4f

Subscribe to this mod's changes

find-INetworkServerService_IsServerRunning is a skill published in the GitHub repository HLND2T/CS2_VibeSignatures (67 stars, last pushed today), licensed MIT. It adds 133 tokens to every session and 1,091 once invoked, about $0.0005 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 2026-08-30.

Debugging

find-INetworkServerService_IsServerRunning next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
find-INetworkServerService_IsServerRunningHLND2T/CS2_VibeSignatures	Skill	67	today	MIT	A	133	Claude Code
systematic-debuggingopen-metadata/OpenMetadata	Skill	16k	yesterday	Apache-2.0	A	37	Claude Code
log-error-digestzebbern/claude-code-guide	Skill	4.7k	3d ago	MIT	A	71	Claude Code, Codex
cwv-optimizeradobe/skills	Skill	319	yesterday	Apache-2.0	A	112	Claude Code
ci-fixersipyourdrink-ltd/bernstein	Skill	1.2k	yesterday	Apache-2.0	A	15	Claude Code, Codex
incident-response-incident-responsermyndharis/antigravity-skills	Skill	1.9k	23d ago	MIT	A	36	Claude Code
triaging-web-analytics-supportPostHog/posthog	Skill	41k	yesterday	none	A	151	Claude Code, Codex