Use it to find the network serialization context-ID lookup function in CS2's Windows or Linux network library.

It reduces the manual work of finding a function when its source code is unavailable and its location must be inferred from related data.

find-CNetworkMessages_LookupNetworkSerializationCont

Q: What is find-CNetworkMessages_LookupNetworkSerializationContextDataId?

A reverse-engineering procedure locates a specific virtual function in Counter-Strike 2's compiled network libraries using IDA Pro, a tool for examining compiled programs.

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-cnetworkmessages_lookupnetworkserializationcontextdataid

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

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Your own site

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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.

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Per session 104 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,342 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.

Model	Per session	Once invoked
Fable 5.1	$0.00104	$0.01342
Opus 5.5	$0.00042	$0.00537
Sonnet 5.5	$0.00021	$0.00268
Haiku 4.5	$0.00010	$0.00134

Measured 10d ago against content hash 95a79dd00f40, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

find-CNetworkMessages_LookupNetworkSerializationContextDataId 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 10d 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-CNetworkMessages_LookupNetworkSerializationContextDataId/SKILL.md · 149 lines

How it starts

The opening of the file, as written. The whole thing — 149 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Find CNetworkMessages_LookupNetworkSerializationContextDataId

Locate CNetworkMessages_LookupNetworkSerializationContextDataId vfunc in CS2 networksystem.dll or libnetworksystem.so using IDA Pro MCP tools.

Method

1. Load CNetworkMessages_SetNetworkSerializationContextData from YAML

ALWAYS Use SKILL /get-func-from-yaml with func_name=CNetworkMessages_SetNetworkSerializationContextData.

If the skill returns an error, STOP and report to user.

Otherwise, extract:

vfunc_index
vfunc_offset

2. Load CNetworkMessages VTable from YAML

ALWAYS Use SKILL /get-vtable-from-yaml with class_name=CNetworkMessages.

If the skill returns an error, STOP and report to user.

Otherwise, extract:

vtable_numvfunc
vtable_entries

3. Resolve the Adjacent Context-ID Lookup Slot

Compute the candidate slot for CNetworkMessages_LookupNetworkSerializationContextDataId:

target_vfunc_index = CNetworkMessages_SetNetworkSerializationContextData.vfunc_index + 1
target_vfunc_offset = CNetworkMessages_SetNetworkSerializationContextData.vfunc_offset + 8

Validate that target_vfunc_index < vtable_numvfunc, then read:

candidate_func_addr = CNetworkMessages_vtable[target_vfunc_index]

This adjacent-slot rule is required because LookupNetworkSerializationContextDataId immediately follows SetNetworkSerializationContextData in the CNetworkMessages vtable for networksystem.dll / libnetworksystem.so.

The following slot, GetNetworkSerializationContextData(uint16, NetworkSerializationMode_t), returns the stored data pointer. Do not confuse that data getter with this string-to-ID lookup.

4. Decompile the Context-ID Lookup Candidate

Decompile the resolved adjacent entry:

mcp__ida-pro-mcp__decompile addr="<candidate_func_addr>"

Confirm the candidate matches the serialization-context ID lookup pattern.

Expected behavior:

Takes (this, key_name) arguments
Uses an internal lock around the lookup
Looks up key_name from the internal symbol table owned by CNetworkMessages
Returns the resolved 16-bit context value, or 0xFFFF / -1 when not found

Read the full file on GitHub · 149 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.

10d ago First seen · 149 lines · 104 tokens per session scan A 95a79dd00f40

Subscribe to this mod's changes

find-CNetworkMessages_LookupNetworkSerializationContextDataId is a skill published in the GitHub repository HLND2T/CS2_VibeSignatures (67 stars, last pushed today), licensed MIT. It adds 104 tokens to every session and 1,342 once invoked, about $0.0004 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 2026-10-27.

Debugging

find-CNetworkMessages_LookupNetworkSerializationContextDataId next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
find-CNetworkMessages_LookupNetworkSerializationContextDataIdHLND2T/CS2_VibeSignatures	Skill	67	today	MIT	A	104	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