DESIGN.md@docs/auditsA

DESIGN.md@docs/audits from omar-y-abdi/furl-ctx is a DESIGN.md file: the design rules coding agents follow in that repo.

Install it, pinned
mdr add omar-y-abdi/furl-ctx/docs/audits/DESIGN.md@git:20260720.6faa91c

Pins git:20260720.6faa91c in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 14 of 14 checks passed
Kind
DESIGN.md file
Repository
omar-y-abdi/furl-ctx
Path
docs/audits/DESIGN.md
Versions recorded
3
Latest version
git:20260720.6faa91c, committed Jul 20, 2026
First version recorded
Jul 3, 2026
Size
9,340 bytes
Repository stars
5
License
Apache-2.0

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

> **HISTORICAL — Phase-2 design document (written 2026-06, archived to docs/audits/ 2026-07-03). SUPERSEDED.**
> This describes the engine as it was audited BEFORE the Phase-2/3 work landed and
> must not be read as current behavior. Known-stale core claims: the silent-loss
> path described below is CLOSED (store write + recovery pointer are UNCONDITIONAL
> on every drop — `enable_ccr_marker` gates neither; see `CODEBASE-MAP.md`
> §CONTRACT-ENFORCEMENT); the default routing policy is `min-tokens`, not
> lossless-first; all `file:line` anchors predate two refactor eras (the
> crusher.rs split into walk/route/persist among them). Kept for audit-trail
> value only.

# DESIGN — Furl Engine Improvements (Phase 2)

Grounded in the engine map (`headroom-engine-map` workflow, 5-facet read + synthesis).
Every claim cites `file:line` in `crates/furl-core/src/transforms/smart_crusher/` unless noted.

## How the engine drops data today (the audited reality)

`SmartCrusher.crush_array` (crusher.rs:584) on a JSON dict-array:
1. `adaptive_k` caps survivors at `max_items_after_crush=15` (config.rs:94). `len<=k` → passthrough.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add omar-y-abdi/furl-ctx/docs/audits/DESIGN.md@sha256:5009e48b506506d9

The line at the top of this page pins the label git:20260720.6faa91c, 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_56fkk4ry52vsqyqz.svg)](https://markdownregistry.com/a/art_56fkk4ry52vsqyqz)

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

Versions

The registry has recorded 3 versions of this file, between Jul 3, 2026 and Jul 20, 2026, about one every 8 days.

versioncommittedcommitsizeaudit
git:20260720.6faa91c latest2026-07-20 6faa91c 9,340 BA view · diff
git:20260703.35f33292026-07-03 35f3329 9,228 BA view · diff
git:20260703.6f8aaa02026-07-03 6f8aaa0 8,551 BA view

Audit of the latest version

A  14 of 14 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Size between 200 bytes and 200 KB (9340 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 curl or wget piped into a shell
  • 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

Source

GitHub

omar-y-abdi/furl-ctx · 5 stars · license Apache-2.0 · pushed 2026-10-28 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_56fkk4ry52vsqyqz
GET https://markdownregistry.com/api/v1/resolve?ref=omar-y-abdi/furl-ctx/docs/audits/DESIGN.md
GET https://markdownregistry.com/api/v1/blob/5009e48b506506d94a5ab7eeca54dc315830bcafa870f1166cc24cd080aaea8e

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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