What is claude-code-perlnavigator AGENTS.md?

A repository-specific instruction document for coding agents working on a Perl language-support plugin. It explains the project structure, its connection to the PerlNavigator language server, setup requirements, and the absence of a build or test system.

Use it as guidance when maintaining the plugin configuration, metadata, startup check, or PerlNavigator integration. Perl is a programming language; a language server provides editor features such as diagnostics and code completion.

It gives an agent the project's local rules and prerequisites before it edits the repository. This reduces confusion about how Perl files are diagnosed, completed, and navigated.

How yuji-hatakeyama/claude-code-perlnavigator configures Claude Code a

Reuse

Borrowing it

Nothing to install: this file belongs to yuji-hatakeyama/claude-code-perlnavigator. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/yuji-hatakeyama/claude-code-perlnavigator/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/yuji-hatakeyama/claude-code-perlnavigator

Made for: Claude Code, Codex, OpenCode.

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/instructions/yuji-hatakeyama/claude-code-perlnavigator/agents-md/github.svg)](https://agentmods.dev/instructions/yuji-hatakeyama/claude-code-perlnavigator/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/yuji-hatakeyama/claude-code-perlnavigator/agents-md"><img src="https://agentmods.dev/badge/instructions/yuji-hatakeyama/claude-code-perlnavigator/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/yuji-hatakeyama/claude-code-perlnavigator/agents-md"><img src="https://agentmods.dev/badge/instructions/yuji-hatakeyama/claude-code-perlnavigator/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 354 This file is loaded in full into every session.

When invoked 354 The same file — it is already loaded in full.

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	$0.00354	$0.00354
Opus 5.5	$0.00142	$0.00142
Sonnet 5.5	$0.00071	$0.00071
Haiku 4.5	$0.00035	$0.00035

Measured 1mo ago against content hash df3b73891bd0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

claude-code-perlnavigator 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 1mo 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.

AGENTS.md · 33 lines

What it actually says

AGENTS.md

This file provides guidance to coding agents when working with code in this repository.

プロジェクト概要

Claude Code に Perl 言語サポートを提供するプラグイン。PerlNavigator LSP サーバーを stdio トランスポートで統合し、 Perl ファイル (.pl, .pm, .t, .cgi, .psgi) の診断・補完・ナビゲーション機能を提供する。

アーキテクチャ

Claude Code → Plugin System → .lsp.json → PerlNavigator LSP (perlnavigator --stdio)
                                ↑
                          hooks.json (SessionStart) → check-perlnavigator.sh

.lsp.json: LSP サーバーの接続設定（コマンド、対応拡張子、トランスポート方式）
.claude-plugin/plugin.json: プラグインメタデータ（名前、バージョン、キーワード）
.claude-plugin/marketplace.json: マーケットプレイス配布用マニフェスト
hooks/hooks.json: SessionStart フックで check-perlnavigator.sh を実行（タイムアウト10秒）
scripts/check-perlnavigator.sh: perlnavigator のインストール・更新状態を確認しユーザーに通知

ビルド・テスト

ビルドやテストの仕組みはない。設定ファイルとシェルスクリプトのみで構成されるプラグインのため。

前提条件

npm install -g perlnavigator-server

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 · 33 lines · 354 tokens per session scan A df3b73891bd0

Subscribe to this mod's changes

claude-code-perlnavigator AGENTS.md is an instructions file published in the GitHub repository yuji-hatakeyama/claude-code-perlnavigator (9 stars, last pushed 1mo ago), licensed MIT. It adds 354 tokens to every session, about $0.0014 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 2026-10-08.

Languages

claude-code-perlnavigator AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
claude-code-perlnavigator AGENTS.mdyuji-hatakeyama/claude-code-perlnavigator	Instructions file	9	1mo ago	MIT	A	354	Claude Code, Codex, OpenCode
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

claude-code-perlnavigator: Instructions file for Claude Code