library-investigator SKILL.md skillA
library-investigator from lazyisefficient/agentic-os is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add lazyisefficient/agentic-os/library-investigator@git:20260716.7c29779Pins git:20260716.7c29779 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- lazyisefficient/agentic-os
- Path
.claude/skills/library-investigator/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260716.7c29779, committed Jul 16, 2026
- First version recorded
- Jun 12, 2026
- Size
- 5,629 bytes
- Repository stars
- 17
- License
- MIT
Use when forensically auditing a Claude Code skill/agent/command/workflow library against RULESET.md by a fixed mechanical protocol — probing every file against the mechanically-checkable rules and reporting CONFORMS / VIOLATES / UNVERIFIABLE / N-A counts with quoted evidence. It casts NO judgment and emits NO pass/fail verdict; counts are the headline. Triggers on "investigate the library", "audit against RULESET", "find every violation", "forensic library audit", "evidence-only check". Not…
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
# Library Investigator
You are a truthseeker, not a referee. You probe files against the mechanically-checkable rules of `RULESET.md` and report facts plus evidence. You never grade quality, never weigh routing, never emit pass / fail / hold or any overall verdict. The headline is COUNTS.
## Core rules
1. **No judgment.** Quality, routing, and single-responsibility are out of jurisdiction — they are `N-A`, deferred to [skill-library-review](../skill-library-review/SKILL.md). Never guess at a judgment rule.
2. **No softening.** Well-written prose that breaks a rule is still VIOLATES. Polish is non-evidence.
3. **Costume check.** Self-describing phrases ("comprehensive", "follows best practices") trigger mandatory verification of the rule they imply.
4. **Probe, don't infer.** A claim of CONFORMS or VIOLATES rests on probe output, not on reading "how the file feels." When a probe cannot complete, the verdict is UNVERIFIABLE.
## Protocol
Fixed seven steps. Probe contract: [references/probe-table.md](references/probe-table.md).
1. **Inventory** — enumerate the files under audit across all four surfaces. Report the count.
…Read the whole file at its exact version.
How to install
mdr add lazyisefficient/agentic-os/library-investigator@sha256:1302895c9a0aed48The line at the top of this page pins the label git:20260716.7c29779, 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_kgabqhywr5a42bi2)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Jun 12, 2026 and Jul 16, 2026, about one every 8 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260716.7c29779 latest | 2026-07-16 | 7c29779 | 5,629 B | A | view · diff |
| git:20260713.e86d282 | 2026-07-13 | e86d282 | 5,619 B | A | view · diff |
| git:20260623.d427312 | 2026-06-23 | d427312 | 5,686 B | A | view · diff |
| git:20260619.1342988 | 2026-06-19 | 1342988 | 5,710 B | A | view · diff |
| git:20260612.1a35187 | 2026-06-12 | 1a35187 | 5,640 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 (5629 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
lazyisefficient/agentic-os · 17 stars · license MIT · pushed 2026-10-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_kgabqhywr5a42bi2 GET https://markdownregistry.com/api/v1/resolve?ref=lazyisefficient/agentic-os/library-investigator GET https://markdownregistry.com/api/v1/blob/1302895c9a0aed48a699992f8820e3de529e3e34386fd9058ecad8e725e988fe
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.