investigate-anything SKILL.md skillA
investigate-anything from tonydzi/second-brain-starter-kit is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add tonydzi/second-brain-starter-kit/investigate-anything@git:20261020.402f6b7Pins git:20261020.402f6b7 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- tonydzi/second-brain-starter-kit
- Path
skills/investigate-anything/SKILL.md- Versions recorded
- 4
- Latest version
- git:20261020.402f6b7, committed Oct 20, 2026
- First version recorded
- Sep 24, 2026
- Size
- 12,957 bytes
- Repository stars
- 14
- License
- MIT
- Start-here router and tradecraft baseline for any investigation into a person, company, domain, image or selector.
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
# Investigate anything
The front door. Everything downstream is faster than the thinking that should
precede it, which is why most bad investigations are not collection failures —
they are framing failures. You can run forty tools against a name and produce a
confident dossier on the wrong person. The work here is deciding what question
you are answering, what would count as an answer, and what would prove you
wrong.
## Core vocabulary
Used across every skill in this repo, defined only here.
- **Selector** — one identifiable data point: name, handle, email, phone,
domain, IP, wallet, hash, plate, IMO, company number.
- **Pivot** — turning one selector into new selectors (email → breach record →
reused handle → forum profile → real name). An investigation *is* a chain of
pivots. Every pivot is also a chance to jump onto a different person.
## Step 1 — Authorized scope
Read [../../ETHICS.md](../../ETHICS.md), then write down five things:
1. **Subject** — the specific entity, distinguished from anyone with a similar
name. Write the discriminators you will use ("the J. Okonkwo who is a
director of company 09xxxxxx", not "J. Okonkwo").
2. **Objective** — see Step 2.
…Read the whole file at its exact version.
How to install
mdr add tonydzi/second-brain-starter-kit/investigate-anything@sha256:15addd964d91b698The line at the top of this page pins the label git:20261020.402f6b7, 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_kzh4mc2j7t43ao6j)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Sep 24, 2026 and Oct 20, 2026, about one every 9 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261020.402f6b7 latest | 2026-10-20 | 402f6b7 | 12,957 B | A | view · diff |
| git:20261007.cd6c208 | 2026-10-07 | cd6c208 | 12,963 B | A | view · diff |
| git:20261003.a2d662f | 2026-10-03 | a2d662f | 12,964 B | A | view · diff |
| git:20260924.2784cb2 | 2026-09-24 | 2784cb2 | 11,849 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 (12957 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
tonydzi/second-brain-starter-kit · 14 stars · license MIT · pushed 2026-11-06 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_kzh4mc2j7t43ao6j GET https://markdownregistry.com/api/v1/resolve?ref=tonydzi/second-brain-starter-kit/investigate-anything GET https://markdownregistry.com/api/v1/blob/15addd964d91b698e9707d2c70b688fa9246c7f04fb0709c98423386c2f033f6
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.