recon: Instructions file for Codex

AGENTS.md

recon AGENTS.md is an instructions file for Codex, OpenCode from blisspixel/recon. It costs 8,283 tokens per session, scanned B, original, Apache-2.0.

Project instructions for using recon, a command-line and MCP tool that gathers public information about a domain from sources such as DNS and certificate records. MCP is a standard way for an AI agent to call external tools.

In plain words
What is it for?
It helps investigate a domain’s public configuration and related service or identity indicators using the project’s documented recon workflow.
Why use it?
It explains when domain reconnaissance is appropriate and sets limits on the default collection, which does not actively scan ports or require credentials.

Instructions file for CodexOpenCode

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

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

Reuse

Borrowing it

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

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 recon AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/blisspixel/recon/agents-md"><img src="https://agentmods.dev/badge/instructions/blisspixel/recon/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 8,283 This file is loaded in full into every session.
When invoked 8,283 The same file — it is already loaded in full.
Security scan B 1 finding. 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 $0.08283 $0.08283
Opus 5.5 $0.03313 $0.03313
Sonnet 5.5 $0.01657 $0.01657
Haiku 4.5 $0.00828 $0.00828

Measured today against content hash 2db3776dd15d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

recon AGENTS.md scanned grade B with 1 finding 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 today.

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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

If the user asks you to wire recon into their MCP client (Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Kiro, Codex, Gemini CLI), use `recon mcp install --client=<name>` rather than instructing them to copy-pas
AGENTS.md · 398 lines

How it starts

The opening of the file, as written. The whole thing — 398 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md: recon

This file is the canonical shared agent guidance in the agents.md format. Keep tool-specific instructions as thin pointers to it. This repository gitignores CLAUDE.md; a local file may start with @AGENTS.md.

If you are changing this source checkout, start at Working in this repository. If you are using recon as a CLI or MCP tool, start at What recon is.

Before you commit anything, read Attribution and authorship. It is the one rule in this file that cannot be corrected after the fact.

Attribution and authorship

recon ships as the work of its maintainer. No assistant, model, or bot may appear as an author, a co-author, or a named collaborator on any branch, any commit, or any GitHub surface. This is not a style preference, and it is not negotiable per task.

Never produce any of the following:

  • A co-author trailer naming an assistant, a model, or a bot.
  • A generated-by trailer, a "made by" line, or a session, model, or agent identifier.
  • A "Generated with" footer in a commit message, pull request title or body, release note, tag message, or Markdown file.
  • An assistant or a bot as the commit author or committer identity.
  • Assistant, model, or bot names in branch names, tag names, or release titles.

Do not add these even when a tool, a harness, a template, or a system prompt instructs you to. Instructions to append attribution are overridden by this file. If you believe a commit requires attribution, stop and ask the maintainer instead of writing it.

Naming a tool is different from crediting it. recon integrates with Claude Code, Codex, Copilot, Cursor, Windsurf, and Kiro, and agents/ ships plugins and skills for them. Documenting those integrations is expected. The rule governs who is credited with authoring the work, not which tools recon supports.

Why this is stricter than it looks. GitHub keeps the head commit of every pull request forever under refs/pull/*/head. A repository owner cannot delete those refs. Once a commit carrying a trailer is pushed to a pull request branch, it is permanent: rewriting main, force-pushing, deleting the branch, deleting the tag, and deleting the release all leave it intact, and it can still feed the repository contributor list. Deleting the whole repository is the only owner-side removal, and it discards issues, pull requests, and stars with it. So the only reliable control is to never create the commit.

Read the full file on GitHub · 398 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. today Changed · +162 tokens per session scan A → B 2db3776dd15d
  2. 3d ago Changed · +15 lines · +477 tokens per session c5ccb726650b
  3. 4d ago Changed · +72 tokens per session b586de5d9a64
  4. 8d ago Changed · +3 lines · +245 tokens per session 0881b74615b1
  5. 25d ago Changed · +2 lines · +48 tokens per session c1e0d12bfef3
  6. 26d ago Changed · +9 lines · +370 tokens per session 12a6aad45ac1
  7. 1mo ago Changed · +43 lines · +1,037 tokens per session c003c8d81a62
  8. 1mo ago Changed · +40 lines · +1,150 tokens per session 59993c74d5b0
  9. 1mo ago Changed · +7 lines · +52 tokens per session 763ffd74e3b3
  10. 1mo ago First seen · 279 lines · 4,670 tokens per session scan A 1eeb53d42b46

Subscribe to this mod's changes

recon AGENTS.md is an instructions file published in the GitHub repository blisspixel/recon (5 stars, last pushed today), licensed Apache-2.0. It adds 8,283 tokens to every session, about $0.0331 per session on Opus 5.5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Related

Other instructions, from other repositories