readonly-probe SKILL.md skillB
readonly-probe from vzakharov/muthur is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add vzakharov/muthur/readonly-probe@git:20261014.0f16275Pins git:20261014.0f16275 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- vzakharov/muthur
- Path
.claude/skills/readonly-probe/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261014.0f16275, committed Oct 14, 2026
- First version recorded
- Aug 8, 2026
- Size
- 2,374 bytes
- Repository stars
- 22
- License
- MIT
STUB — not yet hydrated for this project. Investigate a question against real deployed data under an enforced read-only connection, and commit the output for review. Hydrate this file against the project's datastore and credentials setup before invoking it.
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
> ⚠️ **STUB.** This skill has no working procedure yet. Before it can be > invoked, fill in: which environments can be probed, how a read-only connection > is _enforced_ (not merely intended), and where the output is written. Delete > this banner once you have. ## What this skill is for Answering "what does the data actually look like?" from the data itself, rather than from the schema, the code, or a plausible guess. Most debugging that stalls does so because everyone is reasoning about what _should_ be in the database. ## Concerns that hold regardless of stack Each is something a hydrated version must handle. ### Enforce read-only at the transport This is the one that matters. Read-only must be a property of the connection — a read-only transaction, a replica endpoint, a credential with no write grant — not a promise that the queries will only be `SELECT`s. Convention fails under a typo; a credential without write permission does not. If the project can't currently offer such a connection, creating one is part of hydrating this skill, not a nice-to-have. ### Name the environment out loud Every report says which environment it read. A finding from staging presented as …
Read the whole file at its exact version.
How to install
mdr add vzakharov/muthur/readonly-probe@sha256:a8dd66f3c37eb09dThe line at the top of this page pins the label git:20261014.0f16275, 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_2mp66ahpmzsfhkkj)
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Versions
The registry has recorded 3 versions of this file, between Aug 8, 2026 and Oct 14, 2026, about one every 33 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261014.0f16275 latest | 2026-10-14 | 0f16275 | 2,374 B | B | view · diff |
| git:20261013.4e5c041 | 2026-10-13 | 4e5c041 | 2,368 B | B | view · diff |
| git:20260808.a6a6344 | 2026-08-08 | a6a6344 | 2,398 B | B | view |
Audit of the latest version
- fail: Frontmatter declares a name
- pass: Frontmatter block present
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (2374 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
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
vzakharov/muthur · 22 stars · license MIT · pushed 2026-10-30 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_2mp66ahpmzsfhkkj GET https://markdownregistry.com/api/v1/resolve?ref=vzakharov/muthur/readonly-probe GET https://markdownregistry.com/api/v1/blob/a8dd66f3c37eb09d902c55319950e1758c63ae9c8e94984c97da80ce319b6bf2
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.