investigate SKILL.md skillA

investigate from sebastianelvis/reaper is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add sebastianelvis/reaper/investigate@git:20260912.18b334b

Pins git:20260912.18b334b in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
sebastianelvis/reaper
Path
skills/investigate/SKILL.md
Versions recorded
5
Latest version
git:20260912.18b334b, committed Sep 12, 2026
First version recorded
Apr 18, 2026
Size
12,130 bytes
Repository stars
10
License
Apache-2.0

This skill tests hypotheses with proofs, counterexamples, and analysis. You use it to verify, prove, or refute research claims.

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

You must read and apply the [language rules](../reaper/references/language.md) before you write any output.

Each cycle tests one hypothesis and returns a keep or discard verdict.

## Usage

You invoke this skill by name with an optional cycle count. The default count is 5. Slash-command hosts use `/investigate 10`.

```
investigate 10
investigate
```

## Inputs

You always read these files:

- `reaper-workspace/notes/problem-statement.md`
- `reaper-workspace/notes/ideas.md`
- `reaper-workspace/notes/current-understanding.md`
- `reaper-workspace/notes/results.md`

You read these sources only when a hypothesis needs them or progress stops:

- `reaper-workspace/notes/paper-summary.md`, if it exists.
- `reaper-workspace/notes/literature.md`
- `reaper-workspace/papers/`, including `<id>-notes.md` files.
- `../reaper/references/methodology.md`

## Batch Loop

You test independent hypotheses in parallel batches when the host supports subagents. You use sequential execution for dependent hypotheses or hosts without subagents. Each batch has three stages: plan, dispatch, and merge. You repeat batches while cycles remain and unresolved hypotheses exist.

### Plan
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add sebastianelvis/reaper/investigate@sha256:7a2f1503a957ad09

The line at the top of this page pins the label git:20260912.18b334b, 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_gakdp6r4c7eavxet.svg)](https://markdownregistry.com/a/art_gakdp6r4c7eavxet)

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

Versions

The registry has recorded 5 versions of this file, between Apr 18, 2026 and Sep 12, 2026, about one every 37 days.

versioncommittedcommitsizeaudit
git:20260912.18b334b latest2026-09-12 18b334b 12,130 BA view · diff
git:20260912.5e864352026-09-12 5e86435 12,129 BA view · diff
git:20260502.5bc84e82026-05-02 5bc84e8 21,761 BA view · diff
git:20260418.ad012112026-04-18 ad01211 22,507 BA view · diff
git:20260418.f3979682026-04-18 f397968 22,480 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 (12130 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

sebastianelvis/reaper · 10 stars · license Apache-2.0 · pushed 2026-09-28 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_gakdp6r4c7eavxet
GET https://markdownregistry.com/api/v1/resolve?ref=sebastianelvis/reaper/investigate
GET https://markdownregistry.com/api/v1/blob/7a2f1503a957ad093934cd3c7df3e8e6fe86b4085f4dfabd22f6252a13b4fffc

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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