---
title: Weekly Digest Renderer
category: product
entity_type: skill
price: $15
canonical: https://forgehouse.ai/skills/weekly-digest-renderer/
lang: en
hreflang_alt: https://forgehouse.ai/tr/skiller/weekly-digest-renderer/
last_updated: 2026-06-20
---

# Weekly Digest Renderer

> markdown body to client-report HTML format inline CSS…

A render engine that turns a markdown weekly-update source into brand-consistent, inline-CSS HTML email ready for delivery. It is render-only by design: separating composition, rendering and dispatch, and inherits a single master template so brand updates touch one file. Idempotent hashing and caching make it retry-safe for scheduled jobs, while a built-in date-leak guard keeps operational detail out of client-facing copy.

## Use cases
- Batch-rendering weekly digest emails for many clients
- Generating a single-client preview before approval
- Producing canary-mode bodies for internal review
- Re-rendering when the source markdown changes
- Converting markdown updates to email-client-safe HTML
- Enforcing brand header/footer consistency across all sends

## Benefits
- Render a single client in under half a second and batches in seconds
- Update brand identity once in a master template, not per email
- Guarantee Gmail/Outlook rendering by inlining every CSS style
- Stay retry-safe with idempotent hashing so reruns cost nothing

## What’s included
- Markdown → HTML pipeline with XSS sanitization whitelist
- 17-tag inline CSS injection map for email-client compatibility
- Single master-template slot inheritance for brand header/footer
- Idempotent render cache with hash-based hit/miss skip
- Daily-date and timestamp leak regex guard for narrative discipline
- Mobile-first 600px table layout with verification checklist

## Who it’s for
Agencies and operations teams that send recurring branded client digests and need a reliable, brand-consistent markdown-to-email renderer.

## How it runs
A single daily date in the body fails the render on the spot; only weekly-block phrasing passes. Turning a customer's work record into a brand-consistent email goes through these checks:
1. Collect the input: completed work from the customer's playbook, the verified value line and the lifecycle stage are merged into one data dictionary per customer.
2. Hash the input and check the cache: identical input returns the previously rendered HTML instantly, so a retried cron run costs nothing and produces byte-identical output.
3. Fill the markdown template and run the narrative discipline check: any daily date or timestamp in the body fails the render on the spot; only weekly-block phrasing passes through.
4. Convert markdown to HTML and sanitize it through a whitelist filter that strips scripts and dangerous attributes, then inject inline CSS into every tag because email clients drop style blocks.
5. Wrap the body in the single brand master template (logo, signature, phone, legal footer), so every customer receives one consistent identity maintained in one file.
6. Return the final HTML plus its hash to the dispatcher; this skill never sends anything itself, rendering and delivery stay strictly separated.

## FAQ
### Can it render digests for dozens of clients in one scheduled run?
Yes, batch rendering is the core mode: a single client renders in under half a second and batches finish in seconds. Idempotent hashing means unchanged markdown sources are skipped on reruns, so scheduled jobs can retry without cost.

### Why not just pipe the markdown through any generic HTML converter?
Because email clients are not browsers. This pipeline inlines styles through a 17-tag CSS injection map for Gmail and Outlook, inherits a single brand master template for header and footer, sanitizes against XSS with a whitelist, and runs a regex guard that blocks daily-date and timestamp leaks.

### Does it send the emails too?
No. It is render-only by design; composition, rendering and dispatch are deliberately separate stages. The output is delivery-ready inline-CSS HTML, and the actual sending happens in a different layer.

## Price
$15, one-time, no subscription. VAT included.

Related guide: [How to run a marketing agency with AI automation](https://forgehouse.ai/guides/ai-marketing-agency-automation/)