agentmods.dev

AgentX: Instructions file for Codex

AGENTS.md

AgentX AGENTS.md is an instructions file for Codex, OpenCode from DezXBT/AgentX. It costs 760 tokens per session, scanned A, original, MIT.

A command-line guide for AgentX, a tool that lets an automated program read and post on X, formerly called Twitter. It explains the JSON format returned by commands, available actions, multiple accounts, and pagination.

In plain words
What is it for?
Reading feeds, searching posts, viewing profiles and threads, publishing posts, replying, and processing command results in programs.
Why use it?
It gives an agent a predictable way to use X without scraping human-readable terminal output. It also explains how to handle results, errors, and multi-page responses.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md.

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

not rated 45repo +1 yesterday A scan 760 tokens original MIT
View source ↗ DezXBT/AgentX
Reuse

Borrowing it

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

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 AgentX AGENTS.md

README.md
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Your own site
<a href="https://agentmods.dev/instructions/dezxbt/agentx/agents-md"><img src="https://agentmods.dev/badge/instructions/dezxbt/agentx/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 AgentX AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/dezxbt/agentx/agents-md"><img src="https://agentmods.dev/badge/instructions/dezxbt/agentx/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 760 This file is loaded in full into every session.
When invoked 760 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 $0.00760 $0.00760
Opus 5.5 $0.00304 $0.00304
Sonnet 5.5 $0.00152 $0.00152
Haiku 4.5 $0.00076 $0.00076

Measured 2mo ago against content hash 62df0cddecff, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

AgentX 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.

AGENTS.md · 66 lines

How it starts

The opening of the file, as written. The whole thing — 66 lines — stays where its author put it; the contents beside it link to each section on GitHub.

agentx — agent integration guide

This file tells an autonomous agent how to drive X/Twitter through agentx.

Contract

  • Drive everything through the agentx binary (or import pkg/agent in Go).
  • Every command prints one JSON object to stdout and nothing else:
    • success: {"ok":true,"schema_version":"1","data":...,"pagination":{"nextCursor":"..."}}
    • failure: {"ok":false,"schema_version":"1","error":{"code":"...","message":"..."}}
    • process exit code is 0 on success, 1 on a handled error.
  • Parse the envelope; never scrape human text. data shape depends on the command (a tweet array for timelines, a user object for user, etc.).

Decision guide

Goal Command
Read my home feed agentx feed -n N (add --latest for chronological)
Search agentx search --type Top|Latest "<query>" -n N
Look up a profile agentx user <handle>
Read someone's tweets agentx posts <handle> -n N
Read one tweet (no login needed) agentx tweet <id|url>
Read a tweet + replies agentx thread <id|url>
Publish agentx post "<text>"
Reply / quote agentx reply <id> "<text>" / agentx quote <id> "<text>"
Engage agentx like|unlike|retweet|unretweet|bookmark|delete <id>

<id|url> accepts a numeric id or any https://x.com/<user>/status/<id> URL.

Multi-account

  • Register once: agentx account add --name <n> --auth-token <t> --ct0 <c> [--cookie "<full cookie>"].
  • Choose per call with -a <name> or set AGENTX_ACCOUNT.
  • The first account becomes the default; change it with agentx account default <name>.
  • Inspect with agentx account list (returns names + which is default).

Prefer supplying the full browser cookie string via --cookie: it keeps the session looking like a real browser, which makes the cookies last much longer.

Pagination

Timeline-style results include pagination.nextCursor. To page, re-issue the same command with --cursor <nextCursor>. Stop when nextCursor is empty or stops changing.

Read the full file on GitHub · 66 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. 2mo ago First seen · 66 lines · 760 tokens per session scan A 62df0cddecff

Subscribe to this mod's changes

AgentX AGENTS.md is an instructions file published in the GitHub repository DezXBT/AgentX (45 stars, last pushed yesterday), licensed MIT. It adds 760 tokens to every session, about $0.0030 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 2026-08-30.

Building agentsagentautomationautonomous-agentbotclicookie-auth
Related

AgentX AGENTS.md compared with instructions from other repositories

AgentX AGENTS.md next to 6 instructions from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
AgentX AGENTS.mdDezXBT/AgentXInstructions file45yesterdayMITA760Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA9,719GitHub Copilot
next.js AGENTS.mdvercel/next.jsInstructions file143kyesterdayMITA7,461Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchainInstructions file149kyesterdayMITA4,680Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA5,516GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA3,093GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file274k2d agoMITA4,313Codex, OpenCode