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.
curl -O https://raw.githubusercontent.com/HLND2T/CS2_VibeSignatures/main/.claude/skills/find-CServerSideClientBase_GetUserIDString/SKILL.mdgit clone --depth 1 https://github.com/HLND2T/CS2_VibeSignaturesWrote 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/skills/hlnd2t/cs2_vibesignatures/find-cserversideclientbase_getuseridstring)<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>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 | $0.00078 | $0.00749 |
| Opus 5 | $0.00039 | $0.00375 |
| Sonnet 5 | $0.00016 | $0.00150 |
| Haiku 4.5 | $0.00008 | $0.00075 |
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.
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_LANSTEAM_ID_PENDINGHLTVREPLAYUNKNOWN
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_rvarelative to the current image base- current
func_size - validated
func_sig
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.
- today First seen · 68 lines · 78 tokens per session scan A 8b10854980df
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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