A passive domain-research tool that examines public internet metadata about an organisation’s email, cloud workspace, software, certificates, and security settings. It covers Microsoft 365, Google Workspace, DNS records, and several email-security standards.

Use it to identify Microsoft 365 or Google Workspace tenants, inspect DMARC, DKIM, SPF, MTA-STS, and BIMI, fingerprint SaaS tools, review certificate-transparency data, and analyse security posture.

It helps gather a picture of a domain’s publicly visible technology and email-security setup without relying on private account access.

recon — Plugin for Claude Code by blisspixel

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo

git clone --depth 1 https://github.com/blisspixel/recon

Made for: Claude Code.

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/plugins/blisspixel/recon/claude-code/github.svg)](https://agentmods.dev/plugins/blisspixel/recon/claude-code)

Your own site

<a href="https://agentmods.dev/plugins/blisspixel/recon/claude-code"><img src="https://agentmods.dev/badge/plugins/blisspixel/recon/claude-code/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/plugins/blisspixel/recon/claude-code"><img src="https://agentmods.dev/badge/plugins/blisspixel/recon/claude-code.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

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.

Security

Grade A, and why

recon 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 3d 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/claude-code/.claude-plugin/plugin.json · 23 lines

What it actually says

{
  "name": "recon",
  "version": "2.20.1",
  "description": "Public-metadata domain intelligence for Microsoft 365 / Google Workspace tenant identification, email security observation (DMARC, DKIM, SPF, MTA-STS, BIMI), SaaS fingerprinting, certificate-transparency findings, and posture analysis. Bundles the recon MCP server and its usage guidance.",
  "author": {
    "name": "blisspixel",
    "url": "https://github.com/blisspixel"
  },
  "homepage": "https://github.com/blisspixel/recon",
  "repository": "https://github.com/blisspixel/recon",
  "license": "Apache-2.0",
  "keywords": [
    "recon",
    "osint",
    "dns",
    "passive-recon",
    "m365",
    "google-workspace",
    "dmarc",
    "saas-fingerprinting"
  ]
}

Contents

What it installs

The manifest is a name and a version. 1 MCP server travel with it, and installing the plugin installs all of them. Each is measured on its own page, and each can be installed alone.

MCP server recon A not measured

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.

3d ago Changed 642b39307008
4d ago Changed 529c269a46df
5d ago Changed 11ceeb9a58cc
6d ago Changed 0612fdfb0ed6
7d ago Changed 4c926c13c6ed
13d ago Changed 110eb5b66eb5
14d ago Changed feff4a914d92
25d ago Changed 4ce574df335c
1mo ago Changed 45510b6af85a
1mo ago First seen · 23 lines scan A 486f2b6722d1

Subscribe to this mod's changes

recon is a plugin published in the GitHub repository blisspixel/recon (5 stars, last pushed 3d ago), licensed Apache-2.0. Its token cost is not measured: this kind of file is read by the harness, not the model. 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.

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