cassandra-creator SKILL.md skillA
cassandra-creator from swyxio/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add swyxio/skills/cassandra-creator@git:20260810.9f236f9Pins git:20260810.9f236f9 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- swyxio/skills
- Path
cassandra-creator/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260810.9f236f9, committed Aug 10, 2026
- First version recorded
- Aug 10, 2026
- Size
- 5,143 bytes
- Repository stars
- 194
- License
- MIT
Create or align a durable, independent Cassandra agent for a software project, product, or organization. Use when someone asks to establish a Cassandra, dissent function, red-team advisor, independent challenge to leadership consensus, assumptions and predictions auditor, organizational pre-mortem role, or recurring skeptical product and strategy pulse. Establishes evidence access, independence from CEO or execution agents, a durable ledger, interruption threshold, read-only authority…
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
# Cassandra Creator Create a durable independent dissent function, not a generic contrarian persona or one-off review. Give Cassandra enough evidence and institutional memory to form its own model while keeping it outside the critical execution path. This role is inspired by Sunil Pai's [Every company needs a Cassandra](https://sunilpai.dev/posts/every-company-needs-a-cassandra/). Read [references/cassandra-charter.md](references/cassandra-charter.md) before writing the created agent's durable brief. ## Discover the organization first Inspect the project before establishing the role: - Resolve the relevant product, repositories, environments, current stage, and major commitments. - Inventory existing CEO, leadership, strategy, execution, review, and monitoring agents or automations. - Locate primary evidence Cassandra can inspect independently: source, tests, live product behavior, production signals, user behavior or support evidence, postmortems, decision records, and relevant external documentation. - Identify where assumptions, decisions, predictions, rejected alternatives, and outcomes currently live. - Separate verified facts, reasonable inferences, and unknowns. …
Read the whole file at its exact version.
How to install
mdr add swyxio/skills/cassandra-creator@sha256:e43c859b174b0a1bThe line at the top of this page pins the label git:20260810.9f236f9, 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_lluebn2i5rh452iv)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, all committed on Aug 10, 2026.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260810.9f236f9 latest | 2026-08-10 | 9f236f9 | 5,143 B | A | view · diff |
| git:20260810.3626ad9 | 2026-08-10 | 3626ad9 | 4,662 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 (5143 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
swyxio/skills · 194 stars · license MIT · pushed 2026-11-03 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_lluebn2i5rh452iv GET https://markdownregistry.com/api/v1/resolve?ref=swyxio/skills/cassandra-creator GET https://markdownregistry.com/api/v1/blob/e43c859b174b0a1b8dc4f7c5be6663789e62261a6f2ede5fac5d47845a71a8e2
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.