What is fix-cppheaders?

A workflow for repairing C++ headers when their class layout or virtual-function table differs from reference YAML data. It uses compiler tests to identify the headers and checks the result afterward.

Use it to update allowed headers under hl2sdk_cs2 so declarations match verified binary layout information.

It helps resolve mismatches without hiding differences by changing reference data, generated files, or tests.

fix-cppheaders — Skill for Claude Code and Codex by HLND2T

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 fix-cppheaders

Clone the repo

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

Made for: Claude Code, Codex.

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/fix-cppheaders/github.svg)](https://agentmods.dev/skills/hlnd2t/cs2_vibesignatures/fix-cppheaders)

Your own site

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

Per session 89 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 871 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	$0.00089	$0.00871
Opus 5.5	$0.00036	$0.00348
Sonnet 5.5	$0.00018	$0.00174
Haiku 4.5	$0.00009	$0.00087

Measured 15d ago against content hash 3159098d7fbe, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

fix-cppheaders 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 15d 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/fix-cppheaders/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.

Fix C++ Headers

Overview

Repair s2sdk declarations from compiler-versus-YAML layout differences. Treat run_cpp_tests.py as the source of truth for both the initial diff and final verification.

Resolve GAMEVER from the user's explicit request or CS2VIBE_GAMEVER; use only configs/$GAMEVER.yaml for test definitions and fail if it is missing.

Constraints

Edit only header paths listed in the failing configs/<GAMEVER>.yaml cpp_tests entry.
Require every edited header to be under s2sdk/.
Preserve existing names and style when the reference exposes only a slot or offset.
Keep compiler declarations for gaps in incomplete reference YAMLs unless surrounding index shifts prove removal.
Name unknown virtual slots consistently with nearby declarations, such as unk_001; when only a known function name is available, use virtual void FunctionName() = 0; until a reliable prototype is known.
Interpret Class_dtor and Class_vdtor reference entries as virtual destructors for Class.
Do not edit reference YAMLs, tracked bin_artifacts, cpp test sources, or comparison code to hide a difference.
Do not invoke an external agent runner. This SKILL owns the repair loop directly.
Stop and report a blocker when the diff is ambiguous, the configured header is missing, or a required edit is outside s2sdk/.

Workflow

Determine the game version from the user's request. If omitted, read CS2VIBE_GAMEVER from .env.
Resolve a release-local immutable symbol candidate. Use a caller-provided actual candidate when available; otherwise build one from tracked bin_artifacts/<gamever>/ with gamesymbol_candidate.py build and explicit temporary output/ session paths. Never use a tracked gamesymbols/ fallback or read per-symbol truth from bin/.

Run the complete comparison with debug details:

uv run run_cpp_tests.py -gamever <gamever> -configyaml configs/<gamever>.yaml -snapshot <snapshot> -debug

Read the full file on GitHub · 68 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

agents/openai.yaml 233 B

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.

15d ago Changed · -2 tokens per session 3159098d7fbe
1mo ago Changed · -1 lines 81d789823473
2mo ago Changed · +1 lines 84fc01690c8f
2mo ago First seen · 68 lines · 91 tokens per session scan A c2aaa128ed16

Subscribe to this mod's changes

fix-cppheaders is a skill published in the GitHub repository HLND2T/CS2_VibeSignatures (67 stars, last pushed today), licensed MIT. It adds 89 tokens to every session and 871 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 2026-08-30.

C and C++Debugging Languages

fix-cppheaders next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
fix-cppheadersHLND2T/CS2_VibeSignatures	Skill	67	today	MIT	A	89	Claude Code, Codex
cpp-proJeffallan/claude-skills	Skill	12k	7d ago	MIT	A	79	Claude Code
memory-safety-patternsrmyndharis/antigravity-skills	Skill	1.9k	23d ago	MIT	A	45	Claude Code, Codex
cuda-c-optimizationmindspore-ai/akg	Skill	265	2d ago	Apache-2.0	A	20	Claude Code, Codex
re-cpp-abidslsdzc/rev-skills	Skill	228	26d ago	Apache-2.0	A	69	Claude Code
cppcrazyguitar/cppcheatsheet	Skill	293	9d ago	MIT	A	0	Claude Code
memory-safety-patternsRudyCity/superagent	Skill	64	today	MIT	A	45	Claude Code, Codex