urls-le: Instructions file for Codex

AGENTS.md

urls-le AGENTS.md is an instructions file for Codex, OpenCode from nolindnaidoo/urls-le. It costs 7,267 tokens per session, scanned A, a copy of regex-le AGENTS.md, MIT.

Project instructions for URLs-LE, a VS Code extension and Rust command-line tool that extracts web addresses and other link types from documents. VS Code is a code editor, and Rust is a programming language.

In plain words
What is it for?
Use them when changing URL extraction, maintaining parity between the extension and Rust tool, or working on the shared test fixtures and MCP server.
Why use it?
They explain the project structure, supported document formats, testing requirements, and the rule that extracted links are read from text rather than fetched online.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions CLAUDE.md; mentions Claude Code; mentions AGENTS.md.

This is nolindnaidoo/urls-le's own configuration. It tells Codex and OpenCode how to work on urls-le itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything urls-le configures →

Reuse

Borrowing it

Nothing to install: this file belongs to nolindnaidoo/urls-le. 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/nolindnaidoo/urls-le/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/nolindnaidoo/urls-le

Made for: 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.

agentmods badge for urls-le AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/nolindnaidoo/urls-le/agents-md/github.svg)](https://agentmods.dev/instructions/nolindnaidoo/urls-le/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/nolindnaidoo/urls-le/agents-md"><img src="https://agentmods.dev/badge/instructions/nolindnaidoo/urls-le/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.

agentmods 80×15 button for urls-le AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/nolindnaidoo/urls-le/agents-md"><img src="https://agentmods.dev/badge/instructions/nolindnaidoo/urls-le/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 7,267 This file is loaded in full into every session.
When invoked 7,267 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 86% copy Near-identical to another mod 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.07267 $0.07267
Opus 5.5 $0.02907 $0.02907
Sonnet 5.5 $0.01453 $0.01453
Haiku 4.5 $0.00727 $0.00727

Measured 2d ago against content hash 32a5f2fd299e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

urls-le 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 2d 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.

Origin

This is a copy

86% identical to regex-le AGENTS.md — 119 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

AGENTS.md · 372 lines

How it starts

The opening of the file, as written. The whole thing — 372 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md — URLs-LE

Technical source of truth for this repo. README.md is the user-facing doc; this file is for anyone (human or agent) changing the code.

This repo hosts two products: the extension at the root (this document's scope) and the Rust CLI in crate/ (its own AGENTS.md + SPEC.md). The shared extraction corpus lives at crate/fixtures/; scripts/check-extraction-parity.ts fails CI when this extension drifts from it.

The Rust CLI also ships a second way, through npm: src/cli/ is its terminal surface rebuilt over this extension's extraction engine, bundled to cli/cli.js as the npm package url-le (urls-le was already taken on npm). Both install a command named urls-le, so the npm one is held to the crate's surface byte for byte, which is a different contract from the extraction parity above. src/cli/ follows crate/src/cli.rs, scan.rs, walk.rs, extract/mod.rs and mcp/, not the extension's commands. It passes the engine's limits through untouched, because the engine applies the crate's: the 10 MB ceiling in UTF-8 bytes with a refused document as an error, and the 50,000-URL cut in the crate's words. That makes scripts/check-cli-parity.ts the check that holds the engine's limits to the crate's. It runs both binaries over one generated tree and fails on any difference in stdout, stderr or exit code, and on any byte of difference in what urls-le mcp writes. scripts/check-cli-pipes.ts, shared with every port, closes stdout or stderr before either binary writes and fails on any difference in what follows, on all three operating systems. A change to the crate's surface changes src/cli/ in the same commit.

What this is

A VS Code extension that extracts URLs (http/https/ftp/file/mailto/tel) from the active document — any document — into a results editor, with dedupe/sort post-processing. Markdown, HTML, CSS, JS/TS, JSON, YAML, Properties, TOML, INI and XML know what to exclude; every other languageId is scanned whole. No network access — URLs are read from text, never fetched or validated.

Read the full file on GitHub · 372 lines

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.

  1. 2d ago Changed · +4 lines · +336 tokens per session 32a5f2fd299e
  2. 10d ago Changed · +17 lines · +884 tokens per session 86fbd1940a99
  3. 14d ago Changed · +54 tokens per session 626ec55b8d83
  4. 19d ago Changed · +1 lines · +354 tokens per session 65c2218f7c3f
  5. 22d ago Changed · -6 lines · -190 tokens per session dd3c67de0f36
  6. 26d ago Changed · -1 lines · -21 tokens per session 1d816061bbe6
  7. 28d ago Changed · +19 lines · +377 tokens per session bee1d1c37499
  8. 1mo ago First seen · 338 lines · 5,473 tokens per session scan A b3aad78d8ed8

Subscribe to this mod's changes

urls-le AGENTS.md is an instructions file published in the GitHub repository nolindnaidoo/urls-le (1 stars, last pushed 3d ago), licensed MIT. It adds 7,267 tokens to every session, about $0.0291 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 86% identical to regex-le AGENTS.md, differing in 119 lines, and is treated as a copy.

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