wiring-contract SKILL.md skillA
wiring-contract from haabe/mycelium is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add haabe/mycelium/wiring-contract@git:20260726.bc7be21Pins git:20260726.bc7be21 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- haabe/mycelium
- Path
plugins/mycelium/skills/wiring-contract/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260726.bc7be21, committed Jul 26, 2026
- Size
- 5,789 bytes
- Repository stars
- 51
- License
- MIT
Derive this project's own integration conventions from what the code already does, draft them as a wiring contract, and hold new work to it. Closes the built-but-not-wired gap at L3 (walking skeleton) — a mechanism that ships and is never called reads green in every other check.
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
# Wiring Contract Answer one question for this project and then keep answering it automatically: **when something is built here, what does it have to be connected to before it counts as done?** The failure is not carelessness, it is structural. A model's context makes it unable to see whether the element it just generated is referenced anywhere else, so plausible-but-unreferenced code is the *expected* output. Across 304,362 verified AI-authored commits in 6,275 repositories, "unused variables or parameters" is the second most frequent issue class, and "undefined variable or reference" — writer and reader disagreeing about a name or path — is the most common runtime bug category. It does not wash out: AI-authored code survives **longer** than human-written code (53.9% vs 69.3% line death rate), so an orphan is *less* likely to be cleaned up than a human's. Every ordinary signal misses it. Tests pass, coverage rises, lint is clean, review approves — because each of those verifies a thing **against itself**, and wiring is a property of a **pair**. ## When to Use …
Read the whole file at its exact version.
How to install
mdr add haabe/mycelium/wiring-contract@sha256:e41a87dfba54699fThe line at the top of this page pins the label git:20260726.bc7be21, 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_hd7z4befxigbaukg)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jul 26, 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 (5789 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
haabe/mycelium · 51 stars · license MIT · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_hd7z4befxigbaukg GET https://markdownregistry.com/api/v1/resolve?ref=haabe/mycelium/wiring-contract GET https://markdownregistry.com/api/v1/blob/e41a87dfba54699fd6cf8c2dd582b6f7234b884b5eeb2197de0b687e0ab13691
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.