DESIGN.mdB

DESIGN.md from punt-labs/beadle is a DESIGN.md file: the design rules coding agents follow in that repo.

Install it, pinned
mdr add punt-labs/beadle/DESIGN.md@git:20261105.083a4d8

Pins git:20261105.083a4d8 in mdr.lock. Pin the fingerprint instead.

Audit grade
B, 13 of 14 checks passed
Kind
DESIGN.md file
Repository
punt-labs/beadle
Path
DESIGN.md
Versions recorded
8
Latest version
git:20261105.083a4d8, committed Nov 5, 2026
First version recorded
Aug 30, 2026
Size
137,799 bytes
Repository stars
3
License
MIT

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Design Decisions

Log of architectural decisions, alternatives considered, and outcomes.
Consult before proposing changes to settled architecture.

## DES-001: Trust model — four levels, not binary

**Decision:** Trust classification uses four discrete levels (trusted, verified,
untrusted, unverified) rather than a binary trusted/untrusted split.

**Why:** Proton-to-Proton messages have infrastructure-level E2E encryption
that is qualitatively different from PGP-signed external messages. Collapsing
them into a single "trusted" category loses information. The four-level model
lets consumers make graduated decisions.

**Detection:**

| Level | Method |
|-------|--------|
| trusted | `X-Pm-Content-Encryption: end-to-end` + `X-Pm-Origin: internal` |
| verified | `gpg --verify` exit 0 |
| untrusted | `gpp --verify` exit non-zero |
| unverified | No `multipart/signed` in Content-Type |

## DES-002: Inline PGP verification in list_messages

**Decision:** `list_messages` runs `gpg --verify` on every message with a PGP
signature during listing, not as a separate step.

**Alternative:** Return `unverified` for signed messages in listings and require
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add punt-labs/beadle/DESIGN.md@sha256:2b4f4bd685adec5a

The line at the top of this page pins the label git:20261105.083a4d8, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_5ouiqd55gkhntke2.svg)](https://markdownregistry.com/a/art_5ouiqd55gkhntke2)

0 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 8 versions of this file, between Aug 30, 2026 and Nov 5, 2026, about one every 10 days.

versioncommittedcommitsizeaudit
git:20261105.083a4d8 latest2026-11-05 083a4d8 137,799 BB view · diff
git:20261023.7cc746d2026-10-23 7cc746d 132,937 BB view · diff
git:20261022.d4303662026-10-22 d430366 129,524 BB view · diff
git:20260831.03c7e172026-08-31 03c7e17 129,421 BB view · diff
git:20260831.14aa9ba2026-08-31 14aa9ba 128,917 BB view · diff
git:20260830.76fe5ca2026-08-30 76fe5ca 124,733 BB view · diff
git:20260830.78bc69a2026-08-30 78bc69a 123,953 BB view · diff
git:20260830.7f6f0582026-08-30 7f6f058 122,819 BB view

Audit of the latest version

B  13 of 14 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • fail: No curl or wget piped into a shell (matched: curl | sh)
  • pass: Size between 200 bytes and 200 KB (137799 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Starting a new one? Use a template for DESIGN.md on mdpantry, which passes every one of these checks and says what to change in it.

Source

GitHub

punt-labs/beadle · 3 stars · license MIT · pushed 2026-11-07 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_5ouiqd55gkhntke2
GET https://markdownregistry.com/api/v1/resolve?ref=punt-labs/beadle/DESIGN.md
GET https://markdownregistry.com/api/v1/blob/2b4f4bd685adec5a3a56ed1b246f8c7aef7a32be73deb515dbd35b3d8cbc7764

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: what DESIGN.md is and how agents use it · which agent file does what.

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