bias-check SKILL.md skillA

bias-check from haabe/mycelium is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add haabe/mycelium/bias-check@git:20261007.33e0656

Pins git:20261007.33e0656 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/bias-check/SKILL.md
Versions recorded
8
Latest version
git:20261007.33e0656, committed Oct 7, 2026
First version recorded
May 15, 2026
Size
8,343 bytes
Repository stars
47
License
MIT

Use before any research activity or significant decision. Reviews cognitive biases relevant to the current stage.

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

# Bias Check Skill

Pre-research and pre-decision bias review.

## Preflight: Read target canvas file(s) before any Write/Edit

**Hard rule.** Before issuing `Write` or `Edit` against any `.claude/canvas/*.yml`, use the **Read tool** on that file in this session. Claude Code's Read-before-Write check requires the `Read` tool specifically — `cat`/`head`/`grep` via Bash do NOT satisfy it.

**Edit vs Write — different cost profiles** (verified 2026-05-14):
- **`Edit`** (exact-string replacement): `Read` with `limit: 1` satisfies the check at ~50 tokens. State-tracking is per-file, not per-byte — subsequent `Edit` calls work anywhere in the file. Use this for partial updates against large canvas files (e.g., `purpose.yml` at 800+ lines).
- **`Write`** (full replacement): do a **full Read** first. Write obliterates the file; you should see what you're about to replace. The `limit:1` shortcut is *not* appropriate here.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add haabe/mycelium/bias-check@sha256:956c0c6849903752

The line at the top of this page pins the label git:20261007.33e0656, 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_gvdb73cs7zgsglgs.svg)](https://markdownregistry.com/a/art_gvdb73cs7zgsglgs)

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

Versions

The registry has recorded 8 versions of this file, between May 15, 2026 and Oct 7, 2026, about one every 21 days.

versioncommittedcommitsizeaudit
git:20261007.33e0656 latest2026-10-07 33e0656 8,343 BA view · diff
git:20261001.39266c62026-10-01 39266c6 8,306 BA view · diff
git:20260923.81803ab2026-09-23 81803ab 8,303 BA view · diff
git:20260813.418137c2026-08-13 418137c 7,635 BA view · diff
git:20260704.7639f182026-07-04 7639f18 7,006 BA view · diff
git:20260525.9fac9422026-05-25 9fac942 7,006 BA view · diff
git:20260522.1825b222026-05-22 1825b22 6,696 BA view · diff
git:20260515.cc7f70c2026-05-15 cc7f70c 6,682 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (8343 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

haabe/mycelium · 47 stars · license MIT · pushed 2026-10-18 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_gvdb73cs7zgsglgs
GET https://markdownregistry.com/api/v1/resolve?ref=haabe/mycelium/bias-check
GET https://markdownregistry.com/api/v1/blob/956c0c68499037522b39a154bbb90e52746cb04802eabf81f00560f3ad4a2aca

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.

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