CS2_VibeSignatures: Skill for Claude Code

.claude/skills/find-CServerSideClientBase_GetUserIDString/SKILL.md

find-CServerSideClientBase_GetUserIDString is a skill for Claude Code from HLND2T/CS2_VibeSignatures. It costs 78 tokens per session (749 once invoked), scanned A, original, MIT.

Final-guarantee fallback for CServerSideClientBaseGetUserIDString when its deterministic string-xref preprocessor cannot resolve the function. Locate the concrete user-ID formatting helper in engine2.dll / libengine2.so and write the semantic artifact for the active platform. Trigger…

Skill for Claude Code

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

This is HLND2T/CS2_VibeSignatures's own configuration. It tells Claude Code how to work on CS2_VibeSignatures itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything CS2_VibeSignatures configures →

Reuse

Borrowing it

Nothing to install: this file belongs to HLND2T/CS2_VibeSignatures. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/HLND2T/CS2_VibeSignatures/main/.claude/skills/find-CServerSideClientBase_GetUserIDString/SKILL.md
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.

agentmods badge for find-CServerSideClientBase_GetUserIDString

README.md
[![agentmods](https://agentmods.dev/badge/skills/hlnd2t/cs2_vibesignatures/find-cserversideclientbase_getuseridstring.svg)](https://agentmods.dev/skills/hlnd2t/cs2_vibesignatures/find-cserversideclientbase_getuseridstring)
Your own site
<a href="https://agentmods.dev/skills/hlnd2t/cs2_vibesignatures/find-cserversideclientbase_getuseridstring"><img src="https://agentmods.dev/badge/skills/hlnd2t/cs2_vibesignatures/find-cserversideclientbase_getuseridstring.svg" alt="Measured on agentmods" height="20"></a>
Per session 78 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 749 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 unknown 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 $0.00078 $0.00749
Opus 5 $0.00039 $0.00375
Sonnet 5 $0.00016 $0.00150
Haiku 4.5 $0.00008 $0.00075

Measured today against content hash 8b10854980df, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

find-CServerSideClientBase_GetUserIDString 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 today.

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-CServerSideClientBase_GetUserIDString/SKILL.md · 68 lines

How it starts

The opening of the file, as written. The whole thing — 68 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Find CServerSideClientBase_GetUserIDString (Agent fallback)

Use this fallback only after ida_preprocessor_scripts/find-CServerSideClientBase_GetUserIDString.py fails. The target is the CServerSideClientBase member that returns/formats a client's user-ID string; it is not the nearby network-ID helper, HLTV/replay formatter, or a console command.

Step 0. Skip an existing output

If CServerSideClientBase_GetUserIDString.<platform>.yaml already exists as a non-empty mapping in the active artifact module directory, skip it. Never derive the artifact path from bin or write into checkout expected artifacts while analyzing.

Step 1. Locate the target in IDA

Search the current binary for exact string literals matching the user-ID fallback values:

  • STEAM_ID_LAN
  • STEAM_ID_PENDING
  • HLTV
  • REPLAY
  • UNKNOWN

Enumerate code xrefs and decompile candidate functions. Prefer the function whose first argument is the CServerSideClientBase object (rcx on Windows, normally rdi on Linux) and which returns or writes the formatted user ID. The deterministic finder intentionally excludes unrelated matches such as %.3f min, for %.2f minutes, removeid: couldn't find %s, FULLMATCH:%s %s, and banid 0 %s.

Confirm the candidate's semantics: it reads the client's identity/auth state, selects a fallback such as STEAM_ID_LAN, STEAM_ID_PENDING, HLTV, REPLAY, or UNKNOWN, and returns the resulting string (or a pointer to it). Reject functions that only produce the network ID, register a command, or log a diagnostic. The old build-14167 values are orientation only; do not copy an address without checking the current binary.

Step 2. Generate and write the artifact

Rename the verified function with IDA MCP. Use /generate-signature-for-function to generate a unique signature from the current function body, then use /write-func-as-yaml with:

  • func_name=CServerSideClientBase_GetUserIDString
  • verified current func_addr
  • func_rva relative to the current image base
  • current func_size
  • validated func_sig

Read the full file on GitHub · 68 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. today First seen · 68 lines · 78 tokens per session scan A 8b10854980df

Subscribe to this mod's changes

find-CServerSideClientBase_GetUserIDString is a skill published in the GitHub repository HLND2T/CS2_VibeSignatures (65 stars, last pushed today), licensed MIT. It adds 78 tokens to every session and 749 once invoked, about $0.0004 per session on Opus 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 2026-09-06.

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