A C, C++ or Objective-C compiler that turns source code into an executable, object file, assembly, LLVM IR, shared library or static library.

Use it to build proof-of-concept programs, test harnesses, reverse-engineering fixtures and shared libraries.

It creates native files needed for testing and reverse engineering without running the compiled program. It also supports compiling for another processor or system.

cc-build — Skill for Claude Code and Codex by batteryshark/rekit

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 batteryshark/rekit --skill cc-build

Clone the repo

git clone --depth 1 https://github.com/batteryshark/rekit

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/batteryshark/rekit/cc-build/github.svg)](https://agentmods.dev/skills/batteryshark/rekit/cc-build)

Your own site

<a href="https://agentmods.dev/skills/batteryshark/rekit/cc-build"><img src="https://agentmods.dev/badge/skills/batteryshark/rekit/cc-build/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/batteryshark/rekit/cc-build"><img src="https://agentmods.dev/badge/skills/batteryshark/rekit/cc-build.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 96 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 552 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	$0.00096	$0.00552
Opus 5.5	$0.00038	$0.00221
Sonnet 5.5	$0.00019	$0.00110
Haiku 4.5	$0.00010	$0.00055

Measured 1mo ago against content hash 5882d2941b4c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

cc-build 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 1mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/run.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/cc-build/SKILL.md · 45 lines

What it actually says

C/C++ Compiler (clang)

🔨 Construct tier — this skill produces an artifact, it doesn't read a sample.

Purpose

cc-build creates the native artifacts RE work needs: PoCs, test harnesses, decompiler fixtures, and shared libraries. It compiles but does not run the result. Use exec-observe for an executable or emulate-code for shellcode and object bytes.

What it does

Thin, honest wrapper over clang (falls back to cc/gcc): picks a compiler, builds the argv, runs it, and reports the artifact path/size plus the compiler diagnostics.

--emit exe|obj|asm|ir — link an executable, a .o, assembly (.s), or LLVM IR (.ll, clang only). asm/ir are great for seeing what the compiler generates.
Cross-compile with --target <triple> and/or --arch.
--std, --opt, --shared, --static, and --cflags "…" for anything else.

Prerequisites

A C compiler — clang (macOS: xcode-select --install; Linux: install clang/LLVM) or gcc. Checked flexibly (clang || cc || gcc); absent → honest install hint.

Safety

executes_input: no — the produced binary is never run. Caveat: compiling untrusted source still invokes a compiler, so it's tier 1, not 0. The usual input is your own trusted PoC source.

Usage

rekit run cc-build poc.c --out poc                       # build an exe
rekit run cc-build shellcode_stub.c --emit obj           # → .o for emulate-code
rekit run cc-build foo.c --emit asm --opt 0              # see the codegen
rekit run cc-build mod.c --shared --target aarch64-linux-gnu   # cross-compiled .so

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.

scripts/run.py 4.9 KB runs code

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.

1mo ago First seen · 45 lines · 96 tokens per session scan A 5882d2941b4c

Subscribe to this mod's changes

cc-build is a skill published in the GitHub repository batteryshark/rekit (20 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 96 tokens to every session and 552 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++Languages

zoom-meeting-sdk-unreal

Zoom Meeting SDK for Unreal Engine wrapper integrations. Use when building Unreal projects that embed Zoom meetings with C++ and Blueprint wrappers, including wrapper-to-SDK mapping concerns.

anthropics/knowledge-work-plugins · 41 tokens

doca-argp

Use this skill for hands-on DOCA Arg Parser CLI work on a shipped sample or new DOCA-using app — adding / removing / renaming flags; wiring docaargpinit → register params → docaargpstart → docaargpdestroy in order; picking a parameter type from the full public enum (DOCAARGPTYPESTRING, INT, BOOLEAN, DEVICE, DEVICEREP…

NVIDIA/skills · 277 tokens

cpu-kernels

Provides guidance for writing, optimizing, and benchmarking C++ CPU kernels with SIMD intrinsics (AVX2/AVX512) for the Hugging Face kernels ecosystem. Includes a two-phase workflow: Phase 1 correctness (generic → AVX2) and Phase 2 performance exploration (AVX512 with branching trial loop), runtime CPU dispatch, OpenMP…

huggingface/kernels · 89 tokens

cc-build