find-CLoopTypeClientServer_RefreshNetworkGameState-decompiles

find-CLoopTypeClientServer_RefreshNetworkGameState-decompiles is a skill for Claude Code from HLND2T/CS2_VibeSignatures. It costs 136 tokens per session (844 once invoked), scanned A, original, MIT.

A reverse-engineering procedure for finding two virtual function calls in Counter-Strike 2's engine files. Virtual functions are class operations selected through a lookup table, and the procedure uses decompiled machine code to locate them.

In plain words
What is it for?
Use it with IDA Pro to find the network server's reference-count release and add operations in Windows or Linux CS2 binaries.
Why use it?
It provides a fallback when an automated search for these engine functions fails or needs updating. It records the call locations and table slots rather than assuming old addresses still apply.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter.

Good fit Use it with IDA Pro to find the network server's reference-count release and add operations in Windows or Linux CS2 binaries.

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Install with agentmods
npx agentmods add skills/hlnd2t/cs2_vibesignatures/find-clooptypeclientserver_refreshnetworkgamestate-decompiles
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-clooptypeclientserver_refreshnetworkgamestate-decompiles
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.

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README.md
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Per session 136 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 844 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.
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00136 $0.00844
Opus 5.5 $0.00054 $0.00338
Sonnet 5.5 $0.00027 $0.00169
Haiku 4.5 $0.00014 $0.00084

Measured yesterday against content hash 1909ae5bea80, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

find-CLoopTypeClientServer_RefreshNetworkGameState-decompiles 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 yesterday.

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-CLoopTypeClientServer_RefreshNetworkGameState-decompiles/SKILL.md · 61 lines

How it starts

The opening of the file, as written. The whole thing — 61 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Find INetworkGameServer Release / AddRef (Agent fallback)

Both outputs are indirect virtual calls (found_vcall): record the call instruction, slot and a vfunc_sig. Do not emit func_va.

References (reference-build values only; verify against the current binary)

  • ida_preprocessor_scripts/references/engine/CLoopTypeClientServer_RefreshNetworkGameState.windows.yaml
  • ida_preprocessor_scripts/references/engine/CLoopTypeClientServer_RefreshNetworkGameState.linux.yaml
  • ida_preprocessor_scripts/references/engine/CLoopTypeClientServer_RefreshNetworkGameState_Acquire.linux.yaml

Step 0. Skip outputs that already exist

Skip any <symbol>.<platform>.yaml that already exists and parses non-empty.

Step 1. Decompile the predecessor

/get-func-from-yaml with func_name=CLoopTypeClientServer_RefreshNetworkGameState (STOP on error), then decompile it. Also check for CLoopTypeClientServer_RefreshNetworkGameState_Acquire.<platform>.yaml (optional helper).

Step 2. INetworkGameServer_Release

The vcall on the object stored at this+0x138 (second member, a game-server pointer), made before that member is zeroed: call qword ptr [rax+OFF] with OFF = 0x30 (index 6) in the references. The sibling vcall on this+0x130 (OFF = 0x18) is the client-side release — do not confuse them.

Step 3. INetworkGameServer_AddRef

The vcall that follows g_pNetworkServerService->[slot 0xC0/0xC8]() storing into this+0x138: if (v) v->AddRef() with OFF = 0x28 (index 5). The preceding g_pNetworkClientService result at this+0x130 is AddRef'd through slot 0x10 — that is the client object, not the target.

  • Windows reference: inline in RefreshNetworkGameState.
  • Linux reference: in the de-inlined helper, as a tail dispatch (mov rax,[rax+28h] / leave / jmp rax). Decompile the Acquire helper (or the direct callee taking only this) if it is not in the body.

Step 4. Signatures and YAML

/generate-signature-for-vfuncoffset on the instruction containing the displacement (for the Linux tail dispatch the signature may need to cross the function boundary), then /write-vfunc-as-yaml with vtable_name=INetworkGameServer, func_addr=None, func_sig=None, vfunc_offset, vfunc_index = vfunc_offset / 8, vfunc_sig.

Read the full file on GitHub · 61 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.

  1. yesterday First seen · 61 lines · 136 tokens per session scan A 1909ae5bea80

Subscribe to this mod's changes

find-CLoopTypeClientServer_RefreshNetworkGameState-decompiles is a skill published in the GitHub repository HLND2T/CS2_VibeSignatures (67 stars, last pushed today), licensed MIT. It adds 136 tokens to every session and 844 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 2026-11-05.

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