Borrowing it
Nothing to install: this file belongs to j5ik2o/oni-comb-rs. 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/j5ik2o/oni-comb-rs/main/AGENTS.mdgit clone --depth 1 https://github.com/j5ik2o/oni-comb-rsWrote 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/j5ik2o/oni-comb-rs/agents-md)<a href="https://agentmods.dev/instructions/j5ik2o/oni-comb-rs/agents-md"><img src="https://agentmods.dev/badge/instructions/j5ik2o/oni-comb-rs/agents-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/j5ik2o/oni-comb-rs/agents-md"><img src="https://agentmods.dev/badge/instructions/j5ik2o/oni-comb-rs/agents-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 | $0.07754 | $0.07754 |
| Opus 5.5 | $0.03102 | $0.03102 |
| Sonnet 5.5 | $0.01551 | $0.01551 |
| Haiku 4.5 | $0.00775 | $0.00775 |
Grade A, and why
oni-comb-rs AGENTS.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 2mo 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 — 744 lines — stays where its author put it; the contents beside it link to each section on GitHub.
- 日本語でやりとりしてください
プロジェクト概要
oni-comb-rs は Rust 製パーサーコンビネータライブラリの v2 リブート版。旧 v1 の Rc<dyn Fn> ベース設計を捨て、trait + 具象コンビネータ型（Map, Zip, Or 等）で構成する。動的ディスパッチ・ヒープ確保を排し、Applicative/Alternative 主体で最適化しやすい設計を目指している。
ビルド・テスト
# ビルド
cargo build
# 全テスト実行
cargo test
# parser crateのみテスト
cargo test -p oni-comb-parser
# 特定テスト実行
cargo test -p oni-comb-parser -- test_name
# クリーンビルド
cargo clean && cargo build
アーキテクチャ
Cargo workspace 構成。現在のメンバーは parser クレートのみ。
コア型の階層
InputStream (trait) -- 入力ストリーム抽象。Checkpoint による巻き戻しを提供
└─ StrInputStream -- &str 向け実装。Checkpoint = usize (byte offset)
Parser (trait) -- parse_next(&mut self, &mut I) -> PResult<O, E>
└─ ParserExt (trait) -- map/zip/zip_left/zip_right/or/attempt/cut/optional/many0/many1/sep_by0/sep_by1/chainl1/chainr1/flat_map/and_then のメソッドチェーン
Fail (enum) -- Backtrack(E) | Cut(E) | Incomplete | ZeroProgress
PResult<T, E> -- Result<T, Fail<E>>
モジュール構成 (modules/parser/src/)
| モジュール | 役割 |
|---|---|
input_stream.rs |
InputStream トレイト（Checkpoint, Slice, reset, is_eof） |
str_input_stream.rs |
StrInputStream<'a> — &str 向け InputStream 実装 |
parser.rs |
Parser<I> トレイト（Output, Error, parse_next） |
parser_ext.rs |
ParserExt<I> — 全 Parser に自動実装されるコンビネータメソッド |
fail.rs |
Fail<E> enum と PResult 型エイリアス |
combinator/ |
各コンビネータの具象型（Map, Zip, ZipLeft, ZipRight, Or, Attempt, Cut, Optional, Many, Many1, SepBy0, SepBy1, ChainL1, ChainR1, FlatMap） |
text/ |
テキスト専用パーサー（Char, Tag, Satisfy, TakeWhile0/1, Eof, Whitespace0/1, Identifier, Integer, QuotedString） |
設計上の重要な判断
- Fail::Backtrack vs Fail::Cut:
orは Backtrack のみリカバリし、Cut はそのまま伝播。attemptは Cut を Backtrack に降格、cutは Backtrack を Cut に昇格 - flat_map は実装済みだが Applicative 優先を推奨: ベンチマークで zip ≒ flat_map（同一型）を確認済み。ただし異種型分岐では
Box<dyn Parser>が必要で ~15ns のオーバーヘッドが発生するため、Applicative (zip,or) を優先し flat_map は文脈依存の分岐に限定する方針 - 再帰は boxed recursion: 再帰の結び目だけ
Box<dyn Parser>に落とし、非再帰部分は具象型を維持 - 入力型は当面
&str限定:no_std/streaming/bytes は後回し many/sep_by/chainl1は専用ループコンビネータ: flat_map 再帰ではなくループで実装
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.
- 2mo ago First seen · 744 lines · 7,754 tokens per session scan A b00c3006062e
oni-comb-rs AGENTS.md is an instructions file published in the GitHub repository j5ik2o/oni-comb-rs (41 stars, last pushed 5mo ago), licensed Apache-2.0. It adds 7,754 tokens to every session, about $0.0310 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 2026-09-01.
oni-comb-rs AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| oni-comb-rs AGENTS.mdj5ik2o/oni-comb-rs | Instructions file | 41 | 5mo ago | Apache-2.0 | A | 7,754 | Codex, OpenCode |
| flow-like copilot-instructions.mdRheosoph/flow-like | Instructions file | 972 | yesterday | none | A | 1,349 | GitHub Copilot |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | 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 |