spec-contract SKILL.md skillA
spec-contract from broomva/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add broomva/skills/spec-contract@git:20260917.b709d10Pins git:20260917.b709d10 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- broomva/skills
- Path
skills/governance/spec-contract/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260917.b709d10, committed Sep 17, 2026
- Size
- 20,369 bytes
- Repository stars
- 5
- License
- MIT
The content contract for a design doc — what must be IN it, as against make-spec which owns how it LOOKS. Synthesised from five primary sources read verbatim (Lynch/Refactoring English + his worked example, Design Docs at Google, the Rust RFC template, Nygard's original ADR post, Oxide RFD 1). The load-bearing rule is the cost of reversing a decision, not its importance: a choice fixable in an afternoon is review noise, a one-way door left unargued is the failure a design doc exists to prevent.
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
# spec-contract — what must be in a design doc `make-spec` owns the **shell**: the theme, the tag vocabulary, the filename convention, `<title>`/`<h1>` parity. Its self-test checks the CSS. This skill owns the **contents**. They compose; neither replaces the other. ## The rule everything else derives from > **What's the penalty for being wrong?** A design doc admits a decision by the **cost of reversing it after implementation** — not by importance, not by effort, not by how much the author thought about it. Choosing C++ over Rails is unrecoverable at 200k lines and belongs in the doc. A "Load more" button is fixable in an afternoon and arguing about it in review is pure waste. Every check below is downstream of that rule. Provenance for each, with verbatim citations: [`references/sources.md`](references/sources.md). ## Layer 1 — deterministic (`scripts/spec_check.py`) ```bash # one doc, profile inferred from the path python3 scripts/spec_check.py docs/specs/2026-09-16-thing.html # explicit profile, JSON for a gate python3 scripts/spec_check.py docs/adrs/*.md --profile adr --json # reversal cost becomes blocking rather than advisory …
Read the whole file at its exact version.
How to install
mdr add broomva/skills/spec-contract@sha256:10c2d626e953a846The line at the top of this page pins the label git:20260917.b709d10, 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_im6kvbrf253obouv)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 17, 2026.
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 (20369 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
broomva/skills · 5 stars · license MIT · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_im6kvbrf253obouv GET https://markdownregistry.com/api/v1/resolve?ref=broomva/skills/spec-contract GET https://markdownregistry.com/api/v1/blob/10c2d626e953a84610d06aa1417803800b0c87e00775742c3ebb919b84a7f4ef
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.