goga-change-investigator SKILL.md skillA
goga-change-investigator from qarium/goga is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add qarium/goga/goga-change-investigator@git:20260629.9657abaPins git:20260629.9657aba in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- qarium/goga
- Path
goga/assets/skills/goga-change-investigator/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260629.9657aba, committed Jun 29, 2026
- Size
- 2,684 bytes
- Repository stars
- 44
- License
- BSD-3-Clause
Evidence-driven root cause investigation.
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
# goga-change-investigator
## Identity
You are responsible for evidence-driven root cause investigation.
## Algorithm
### Step 1. Load context
1. Read task description
2. Load Scope Resolution Report from previous step
3. Load candidate cells, their CODEMANIFEST, implementation, tests
4. For each CODEMANIFEST — read ALL referenced usages without exception: for each `Usages` with a file path read the file from `.goga/usages/`, for each imported usage from `Imports` → `Usages` read `{from_path}/.usages/{usage_name}.md`.
5. Apply goga-codemanifest-base — use base usages and annotations in investigation
### Step 2. Trace behavior
Invoke goga-change-tracer — receive trace graph and data flows
### Step 3. Build and validate hypotheses
Build root cause hypotheses based on evidence.
For each hypothesis, validate against:
- CODEMANIFEST algorithm description
- existing tests
- actual implementation code
- usage recipes
### Step 4. Breaking Change Analysis
For every proposed change, answer each question explicitly:
1. Will existing function call with same arguments produce different behavior?
2. Will existing file paths change?
3. Will output format change?
…Read the whole file at its exact version.
How to install
mdr add qarium/goga/goga-change-investigator@sha256:02612064a93997a1The line at the top of this page pins the label git:20260629.9657aba, 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_ix5jksnxgjeoofqa)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jun 29, 2026.
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 (2684 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
qarium/goga · 44 stars · license BSD-3-Clause · pushed 2026-10-21 · branch 2.1.x
API
GET https://markdownregistry.com/api/v1/artifacts/art_ix5jksnxgjeoofqa GET https://markdownregistry.com/api/v1/resolve?ref=qarium/goga/goga-change-investigator GET https://markdownregistry.com/api/v1/blob/02612064a93997a177d8987c8569488647d1505b0a0907ed524de0c8aa0a1cfb
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.