Borrowing it
Nothing to install: this file belongs to sima-neat/core. 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/sima-neat/core/main/CLAUDE.mdgit clone --depth 1 https://github.com/sima-neat/coreWrote 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/instructions/sima-neat/core/claude-md)<a href="https://agentmods.dev/instructions/sima-neat/core/claude-md"><img src="https://agentmods.dev/badge/instructions/sima-neat/core/claude-md/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.
<a href="https://agentmods.dev/instructions/sima-neat/core/claude-md"><img src="https://agentmods.dev/badge/instructions/sima-neat/core/claude-md.svg" alt="Reviewed on agentmods" width="80" 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 | $0.03227 | $0.03227 |
| Opus 5.5 | $0.01291 | $0.01291 |
| Sonnet 5.5 | $0.00645 | $0.00645 |
| Haiku 4.5 | $0.00323 | $0.00323 |
Grade A, and why
core CLAUDE.md 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 6d 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.
How it starts
The opening of the file, as written. The whole thing — 337 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
Guidance for Claude (and other agents) working in this repository.
This file complements AGENTS.md, CONTRIBUTING.md, and the authoritative
contributor docs under docs/develop-apps/contribute/ — read those for full rationale.
This file extracts the operational essentials.
What this repo is
SiMa Neat — a C++20 library for building, validating, running, and debugging
GStreamer pipelines with a typed, composable API. Ships C++ libraries plus
Python bindings (pyneat) built with nanobind + scikit-build-core.
- C++ namespace:
simaai::neat - CMake project:
SimaNeat - Core runtime types:
Model,Session,Run - Public API surface: headers under
include/(treated as stable) - Canonical production pipeline test (source of truth):
tests/e2e_pipelines/obj_detection/sync_yolov8_test.cpp
Build commands
The single entrypoint is build.sh. Output lands under build/.
./build.sh # dev-only: core lib + headers (default)
./build.sh --all # lib + tests + tutorials + docs + pyneat wheel
./build.sh --all --clean # clean full build
./build.sh --python # add pyneat bindings to selected targets
./build.sh --doc # docs only
./build.sh --fuzz # fuzz-enabled package artifacts
./build.sh --asan-ubsan # ASan+UBSan instrumented build
./build.sh --tsan # TSan instrumented build
./build.sh --install-deps-only # bootstrap system deps, exit
./build.sh -h # full help
Under the hood: CMake 3.16+, CMAKE_CXX_STANDARD 20, Release by default.
Key options surfaced as -DSIMANEAT_BUILD_* toggles in CMakeLists.txt.
Python bindings (pyneat)
python -m pip install -e .[dev] # editable install with dev extras
pytest -q # runs python/tests and tests/tutorials
pyproject.toml declares the build (scikit-build-core + nanobind ≥ 2.4).
Extension module is pyneat._pyneat_core. NumPy/PyTorch interop is via DLPack.
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.
- 6d ago Changed 66c1778239d7
- 2mo ago First seen · 337 lines · 3,227 tokens per session scan A f4fed25208ce
core CLAUDE.md is an instructions file published in the GitHub repository sima-neat/core (8 stars, last pushed yesterday), licensed Apache-2.0. It adds 3,227 tokens to every session, about $0.0129 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 2026-08-31.
core CLAUDE.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| core CLAUDE.mdsima-neat/core | Instructions file | 8 | yesterday | Apache-2.0 | A | 3,227 | Claude Code |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | yesterday | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |