email-digest

A toolkit for building recurring digest or roundup emails with many items. It uses table-based email layouts intended to work in Outlook and when images are blocked, while tying its rules to supporting evidence.

In plain words
What is it for?
Use it to create newsletters or other multi-item emails, handle varying amounts of content, check rendering and accessibility constraints, and apply evidence-based delivery rules.
Why use it?
It addresses common email problems such as overflowing content, inconsistent rendering, inaccessible layouts, and rules that are hard to verify.

Plugin for Claude Code

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.

Claude Code
/plugin marketplace add fledgeling-co/fledgeling-plugins
agentmods
npx agentmods add plugins/fledgeling-co/fledgeling-plugins/email-digest
Clone the repo
git clone --depth 1 https://github.com/fledgeling-co/fledgeling-plugins

Made for: Claude Code.

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. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

email-digest 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.

plugins/email-digest/.claude-plugin/plugin.json · 19 lines

What it actually says

{
  "name": "email-digest",
  "description": "Build a recurring multi-item digest or roundup email that survives contact with real inboxes: a tiered layout that absorbs volume instead of capping it, a table-based render that works in Outlook's Word engine and with images blocked, and a deterministic gate carrying every rule back to the evidence behind it. Refuses the two fixes people reach for first, because the measured evidence goes the other way.",
  "version": "1.8.0",
  "author": {
    "name": "Fledgeling",
    "email": "[email protected]"
  },
  "homepage": "https://skills.fledgeling.app/skills/email-digest",
  "license": "MIT",
  "keywords": [
    "email",
    "newsletter",
    "digest",
    "accessibility",
    "deliverability"
  ]
}
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 First seen · 19 lines scan A 027307b6ae49

Subscribe to this mod's changes

email-digest is a plugin published in the GitHub repository fledgeling-co/fledgeling-plugins (2 stars, last pushed 2d ago), licensed MIT. 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.