git-investigate SKILL.md skillA

git-investigate from sd0xdev/sd0x-harness is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add sd0xdev/sd0x-harness/git-investigate@git:20260321.4a2afd0

Pins git:20260321.4a2afd0 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
sd0xdev/sd0x-harness
Path
skills/git-investigate/SKILL.md
Versions recorded
4
Latest version
git:20260321.4a2afd0, committed Mar 21, 2026
First version recorded
Mar 5, 2026
Size
2,533 bytes
Repository stars
194
License
MIT

Git history investigation. Use when: tracking code changes, finding where bugs were introduced, root cause analysis. Not for: code exploration (use code-explore), issue analysis (use issue-analyze). Output: history trace + root cause report.

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

# Git Investigate Skill

## Trigger

- Keywords: code history, git blame, track changes, who wrote this, when was it changed, root cause, code archaeology

## When NOT to Use

- Code review (use codex-review)
- Feature development (use feature-dev)
- Just want to read code (use Read directly)

## Command

```bash
/git-investigate src/service/xxx.ts:123      # Specific line
/git-investigate processToken                 # Function name
/git-investigate "error message"              # Keyword
```

## Workflow

```
Locate code -> git blame -> find commit -> trace history -> analyze changes -> report
```

## Investigation Framework

| Question           | Method                        |
| ------------------ | ----------------------------- |
| Who wrote it?      | `git blame`                   |
| When was it changed?| `git log --follow`           |
| Why was it changed?| commit message + PR           |
| What was missed?   | `git diff` compare original vs problematic version |

## Common Patterns

| Pattern            | Symptom              | Root Cause                    |
| ------------------ | -------------------- | ----------------------------- |
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add sd0xdev/sd0x-harness/git-investigate@sha256:c6c7bea9d22e80cc

The line at the top of this page pins the label git:20260321.4a2afd0, 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_vg7g3dinotvr2gft.svg)](https://markdownregistry.com/a/art_vg7g3dinotvr2gft)

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

Versions

The registry has recorded 4 versions of this file, between Mar 5, 2026 and Mar 21, 2026, about one every 5 days.

versioncommittedcommitsizeaudit
git:20260321.4a2afd0 latest2026-03-21 4a2afd0 2,533 BA view · diff
git:20260305.3ae8b922026-03-05 3ae8b92 2,526 BA view · diff
git:20260305.37d45912026-03-05 37d4591 2,209 BA view · diff
git:20260305.c56d8192026-03-05 c56d819 2,004 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 (2533 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

sd0xdev/sd0x-harness · 194 stars · license MIT · pushed 2026-10-08 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_vg7g3dinotvr2gft
GET https://markdownregistry.com/api/v1/resolve?ref=sd0xdev/sd0x-harness/git-investigate
GET https://markdownregistry.com/api/v1/blob/c6c7bea9d22e80ccded2de0937d13c989e80c0bb78f2c7f069b62cbe8a88047e

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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