foundry SKILL.md skillA
foundry from backnotprop/product-engineering is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add backnotprop/product-engineering/foundry@git:20260826.30b96c6Pins git:20260826.30b96c6 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- backnotprop/product-engineering
- Path
.claude/skills/foundry/SKILL.md- Versions recorded
- 4
- Latest version
- git:20260826.30b96c6, committed Aug 26, 2026
- First version recorded
- Aug 25, 2026
- Size
- 4,430 bytes
- Repository stars
- 25
- License
- Apache-2.0
The build-and-maintenance process for this repository's converged skill kit. Use for ANY convergence or maintenance work here — lifting files from upstream sources, building or revising one of the six skills, handling upstream drift or a failed integrity check, adding a contradiction ruling, distilling source material, installing the private course drop-in, or evaluating a new upstream or skill for the kit. Load BEFORE editing anything.
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
# Foundry This repo converges 84 upstream design-engineering skills into six (`pe-design`, `pe-build`, `pe-review`, `pe-verify`, `pe-product-description`, `pe-brand-assets`), preserving the best source prose **byte-for-byte** and proving it with hashes. You are operating a factory with strict rules, not editing a normal repo. AGENTS.md is the fence; this skill is the manual. ## Before anything else 1. Read `foundry/MANIFEST.json` — look up the class of every file you intend to touch. 2. Read `foundry/LEDGER.md` — rulings bind everything you author. 3. Pick the runbook that matches the task (table below) and follow it exactly. 4. End every session that changed provenance state with a `foundry/LOG.md` line and a green `foundry/scripts/check-integrity.sh`. ## File classes | Class | Meaning | Your permissions | | --- | --- | --- | | `verbatim` | Byte-for-byte lift from a pinned upstream commit | Never edit. Re-lift via script or nothing. | | `verbatim-minus` | Verbatim with a recorded cut (pristine + `.patch` in `foundry/pristine/`) | Never edit the file directly. Changing the cut = edit file, run `make-patch.sh`, PR shows the patch diff. | …
Read the whole file at its exact version.
How to install
mdr add backnotprop/product-engineering/foundry@sha256:30597b1e13823666The line at the top of this page pins the label git:20260826.30b96c6, 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.
[](https://markdownregistry.com/a/art_a34xiz67277fnkbc)
6 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Aug 25, 2026 and Aug 26, 2026, more than one a day.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260826.30b96c6 latest | 2026-08-26 | 30b96c6 | 4,430 B | A | view · diff |
| git:20260826.4e34f3c | 2026-08-26 | 4e34f3c | 4,419 B | A | view · diff |
| git:20260826.f20ea02 | 2026-08-26 | f20ea02 | 4,404 B | A | view · diff |
| git:20260825.f1cd4fd | 2026-08-25 | f1cd4fd | 4,171 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4430 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
backnotprop/product-engineering · 25 stars · license Apache-2.0 · pushed 2026-08-30 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_a34xiz67277fnkbc GET https://markdownregistry.com/api/v1/resolve?ref=backnotprop/product-engineering/foundry GET https://markdownregistry.com/api/v1/blob/30597b1e13823666ee5d2fbf7afb8d70e136ec5d51536804f575cc06e0643af2
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: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.