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ekstend: Instructions file for Codex

AGENTS.md

ekstend AGENTS.md is an instructions file for Codex, OpenCode from husniadil/ekstend. It costs 1,572 tokens per session, scanned A, original, MIT.

A set of instructions for AI coding agents working in a repository of reusable Claude Code plugins, including its structure, current plugins, and development rules.

In plain words
What is it for?
Use it when working on this plugin repository, especially to understand its directories, plugin metadata, documentation, skills, and guidelines for creating new plugins.
Why use it?
It gives coding agents the project context they need to follow repository conventions and add or update plugins consistently.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions .claude-plugin; mentions CLAUDE.md; names the AskUserQuestion tool.

This is husniadil/ekstend's own configuration. It tells Codex and OpenCode how to work on ekstend 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 ekstend configures →

not rated 1repo 2d ago A scan 1,572 tokens original MIT
View source ↗ husniadil/ekstend
Reuse

Borrowing it

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

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.

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README.md
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Your own site
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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 ekstend AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/husniadil/ekstend/agents-md"><img src="https://agentmods.dev/badge/instructions/husniadil/ekstend/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,572 This file is loaded in full into every session.
When invoked 1,572 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.01572 $0.01572
Opus 5.5 $0.00629 $0.00629
Sonnet 5.5 $0.00314 $0.00314
Haiku 4.5 $0.00157 $0.00157

Measured 1mo ago against content hash 5cf0e7b63ce9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ekstend 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 · 175 lines

How it starts

The opening of the file, as written. The whole thing — 175 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

Instructions for AI coding agents working on this project.

Project Overview

This is a Claude Code plugins repository containing reusable plugins that extend Claude Code's capabilities. Plugins are installed via the Claude Code plugin marketplace system.

Repository structure:

.claude-plugin/marketplace.json   # Marketplace metadata (lists all plugins)
plugins/
  <plugin-name>/
    .claude-plugin/plugin.json    # Plugin metadata
    CLAUDE.md                     # Redirects to AGENTS.md
    AGENTS.md                     # Plugin-specific instructions for AI agents
    README.md                     # Plugin documentation
    skills/                       # Skill definitions
      <skill-name>/
        SKILL.md                  # Skill instructions (frontmatter + markdown)
        references/               # Detailed reference docs
        scripts/                  # Python scripts
        tests/                    # Unit tests (optional)

Current Plugins

  • ultrathink: Sequential thinking CLI for multi-step problem solving with confidence tracking and assumption management. Python-based, runs via uv run.
  • skill-creator: Guide for creating effective skills that extend Claude's capabilities with specialized knowledge, workflows, or tool integrations. Includes utility scripts for initializing, validating, and packaging skills. Licensed under Apache 2.0.
  • database: Unified access to MySQL, PostgreSQL, SQLite databases, and Redis key-value stores via CLI for querying, schema/key exploration, and data management. Auto-detects database type from context. Pure instruction-based skill (no scripts).
  • ideate: Facilitation-first brainstorming skill that helps users unlock their own ideas through structured questioning (EECCA workflow) and expansion techniques. Pure instruction-based skill (no scripts).
  • code-review: Iterative code-review toolkit bundling two skills. code-review itself finds gaps proactively (PR diff or holistic codebase), with business-logic awareness, end-to-end integration tracing (frontend → backend → database → external APIs), dependency grounding against pinned versions, and a tracked fix loop (TaskCreate/TaskUpdate). address-pr-review reacts to existing GitHub PR comments — validate (Valid / Partial / Invalid / Defer / Repeat), fix, reply, and resolve threads via gh GraphQL/REST. 10 gap categories. Pure instruction-based skills (no scripts).
  • interview: Deep requirements gathering skill that interviews users through thoughtful, in-depth questions before implementation. Uses CDEEPER workflow (Contextualize, Discover, Explore, Edge, Prioritize, Experience, Ready) to uncover hidden requirements, edge cases, and trade-offs. Pure instruction-based skill (no scripts).

Read the full file on GitHub · 175 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. 1mo ago First seen · 175 lines · 1,572 tokens per session scan A 5cf0e7b63ce9

Subscribe to this mod's changes

ekstend AGENTS.md is an instructions file published in the GitHub repository husniadil/ekstend (1 stars, last pushed 2d ago), licensed MIT. It adds 1,572 tokens to every session, about $0.0063 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.

Claude CodeProductivityclaude-code-plugindeveloper-toolsplugin-marketplace
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